import java.util.List;
import java.util.Map;
-
/**
* A JSONArray is an ordered sequence of values. Its external text form is a
* string wrapped in square brackets with commas separating the values. The
* <li>Strings do not need to be quoted at all if they do not begin with a quote
* or single quote, and if they do not contain leading or trailing spaces, and
* if they do not contain any of these characters:
- * <code>{ } [ ] / \ : , #</code> and if they do not look like numbers and
- * if they are not the reserved words <code>true</code>, <code>false</code>, or
+ * <code>{ } [ ] / \ : , #</code> and if they do not look like numbers and if
+ * they are not the reserved words <code>true</code>, <code>false</code>, or
* <code>null</code>.</li>
* </ul>
*
* @author JSON.org
* @version 2016-08/15
*/
-public class JSONArray implements Iterable<Object> {
-
- /**
- * The arrayList where the JSONArray's properties are kept.
- */
- private final ArrayList<Object> myArrayList;
-
- /**
- * Construct an empty JSONArray.
- */
- public JSONArray() {
- this.myArrayList = new ArrayList<Object>();
- }
-
- /**
- * Construct a JSONArray from a JSONTokener.
- *
- * @param x
- * A JSONTokener
- * @throws JSONException
- * If there is a syntax error.
- */
- public JSONArray(JSONTokener x) throws JSONException {
- this();
- if (x.nextClean() != '[') {
- throw x.syntaxError("A JSONArray text must start with '['");
+public class JSONArray implements Iterable<Object>
+{
+
+ /**
+ * The arrayList where the JSONArray's properties are kept.
+ */
+ private final ArrayList<Object> myArrayList;
+
+ /**
+ * Construct an empty JSONArray.
+ */
+ public JSONArray()
+ {
+ this.myArrayList = new ArrayList<Object>();
+ }
+
+ /**
+ * Construct a JSONArray from a JSONTokener.
+ *
+ * @param x
+ * A JSONTokener
+ * @throws JSONException
+ * If there is a syntax error.
+ */
+ public JSONArray(JSONTokener x) throws JSONException
+ {
+ this();
+ if (x.nextClean() != '[')
+ {
+ throw x.syntaxError("A JSONArray text must start with '['");
+ }
+
+ char nextChar = x.nextClean();
+ if (nextChar == 0)
+ {
+ // array is unclosed. No ']' found, instead EOF
+ throw x.syntaxError("Expected a ',' or ']'");
+ }
+ if (nextChar != ']')
+ {
+ x.back();
+ for (;;)
+ {
+ if (x.nextClean() == ',')
+ {
+ x.back();
+ this.myArrayList.add(JSONObject.NULL);
+ }
+ else
+ {
+ x.back();
+ this.myArrayList.add(x.nextValue());
}
-
- char nextChar = x.nextClean();
- if (nextChar == 0) {
+ switch (x.nextClean())
+ {
+ case 0:
+ // array is unclosed. No ']' found, instead EOF
+ throw x.syntaxError("Expected a ',' or ']'");
+ case ',':
+ nextChar = x.nextClean();
+ if (nextChar == 0)
+ {
// array is unclosed. No ']' found, instead EOF
throw x.syntaxError("Expected a ',' or ']'");
+ }
+ if (nextChar == ']')
+ {
+ return;
+ }
+ x.back();
+ break;
+ case ']':
+ return;
+ default:
+ throw x.syntaxError("Expected a ',' or ']'");
}
- if (nextChar != ']') {
- x.back();
- for (;;) {
- if (x.nextClean() == ',') {
- x.back();
- this.myArrayList.add(JSONObject.NULL);
- } else {
- x.back();
- this.myArrayList.add(x.nextValue());
- }
- switch (x.nextClean()) {
- case 0:
- // array is unclosed. No ']' found, instead EOF
- throw x.syntaxError("Expected a ',' or ']'");
- case ',':
- nextChar = x.nextClean();
- if (nextChar == 0) {
- // array is unclosed. No ']' found, instead EOF
- throw x.syntaxError("Expected a ',' or ']'");
- }
- if (nextChar == ']') {
- return;
- }
- x.back();
- break;
- case ']':
- return;
- default:
- throw x.syntaxError("Expected a ',' or ']'");
- }
- }
- }
- }
-
- /**
- * Construct a JSONArray from a source JSON text.
- *
- * @param source
- * A string that begins with <code>[</code> <small>(left
- * bracket)</small> and ends with <code>]</code>
- * <small>(right bracket)</small>.
- * @throws JSONException
- * If there is a syntax error.
- */
- public JSONArray(String source) throws JSONException {
- this(new JSONTokener(source));
- }
-
- /**
- * Construct a JSONArray from a Collection.
- *
- * @param collection
- * A Collection.
- */
- public JSONArray(Collection<?> collection) {
- if (collection == null) {
- this.myArrayList = new ArrayList<Object>();
- } else {
- this.myArrayList = new ArrayList<Object>(collection.size());
- for (Object o: collection){
- this.myArrayList.add(JSONObject.wrap(o));
- }
- }
- }
-
- /**
- * Construct a JSONArray from an array
- *
- * @throws JSONException
- * If not an array or if an array value is non-finite number.
- */
- public JSONArray(Object array) throws JSONException {
- this();
- if (array.getClass().isArray()) {
- int length = Array.getLength(array);
- this.myArrayList.ensureCapacity(length);
- for (int i = 0; i < length; i += 1) {
- this.put(JSONObject.wrap(Array.get(array, i)));
- }
- } else {
- throw new JSONException(
- "JSONArray initial value should be a string or collection or array.");
- }
- }
-
- @Override
- public Iterator<Object> iterator() {
- return this.myArrayList.iterator();
- }
-
- /**
- * Get the object value associated with an index.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return An object value.
- * @throws JSONException
- * If there is no value for the index.
- */
- public Object get(int index) throws JSONException {
- Object object = this.opt(index);
- if (object == null) {
- throw new JSONException("JSONArray[" + index + "] not found.");
- }
- return object;
- }
-
- /**
- * Get the boolean value associated with an index. The string values "true"
- * and "false" are converted to boolean.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The truth.
- * @throws JSONException
- * If there is no value for the index or if the value is not
- * convertible to boolean.
- */
- public boolean getBoolean(int index) throws JSONException {
- Object object = this.get(index);
- if (object.equals(Boolean.FALSE)
- || (object instanceof String && ((String) object)
- .equalsIgnoreCase("false"))) {
- return false;
- } else if (object.equals(Boolean.TRUE)
- || (object instanceof String && ((String) object)
- .equalsIgnoreCase("true"))) {
- return true;
- }
- throw new JSONException("JSONArray[" + index + "] is not a boolean.");
- }
-
- /**
- * Get the double value associated with an index.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The value.
- * @throws JSONException
- * If the key is not found or if the value cannot be converted
- * to a number.
- */
- public double getDouble(int index) throws JSONException {
- Object object = this.get(index);
- try {
- return object instanceof Number ? ((Number) object).doubleValue()
- : Double.parseDouble((String) object);
- } catch (Exception e) {
- throw new JSONException("JSONArray[" + index + "] is not a number.", e);
- }
- }
-
- /**
- * Get the float value associated with a key.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The numeric value.
- * @throws JSONException
- * if the key is not found or if the value is not a Number
- * object and cannot be converted to a number.
- */
- public float getFloat(int index) throws JSONException {
- Object object = this.get(index);
- try {
- return object instanceof Number ? ((Number) object).floatValue()
- : Float.parseFloat(object.toString());
- } catch (Exception e) {
- throw new JSONException("JSONArray[" + index
- + "] is not a number.", e);
- }
- }
-
- /**
- * Get the Number value associated with a key.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The numeric value.
- * @throws JSONException
- * if the key is not found or if the value is not a Number
- * object and cannot be converted to a number.
- */
- public Number getNumber(int index) throws JSONException {
- Object object = this.get(index);
- try {
- if (object instanceof Number) {
- return (Number)object;
- }
- return JSONObject.stringToNumber(object.toString());
- } catch (Exception e) {
- throw new JSONException("JSONArray[" + index + "] is not a number.", e);
- }
- }
-
- /**
- * Get the enum value associated with an index.
- *
- * @param clazz
- * The type of enum to retrieve.
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The enum value at the index location
- * @throws JSONException
- * if the key is not found or if the value cannot be converted
- * to an enum.
- */
- public <E extends Enum<E>> E getEnum(Class<E> clazz, int index) throws JSONException {
- E val = optEnum(clazz, index);
- if(val==null) {
- // JSONException should really take a throwable argument.
- // If it did, I would re-implement this with the Enum.valueOf
- // method and place any thrown exception in the JSONException
- throw new JSONException("JSONArray[" + index + "] is not an enum of type "
- + JSONObject.quote(clazz.getSimpleName()) + ".");
- }
- return val;
- }
-
- /**
- * Get the BigDecimal value associated with an index.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The value.
- * @throws JSONException
- * If the key is not found or if the value cannot be converted
- * to a BigDecimal.
- */
- public BigDecimal getBigDecimal (int index) throws JSONException {
- Object object = this.get(index);
- try {
- return new BigDecimal(object.toString());
- } catch (Exception e) {
- throw new JSONException("JSONArray[" + index +
- "] could not convert to BigDecimal.", e);
- }
- }
-
- /**
- * Get the BigInteger value associated with an index.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The value.
- * @throws JSONException
- * If the key is not found or if the value cannot be converted
- * to a BigInteger.
- */
- public BigInteger getBigInteger (int index) throws JSONException {
- Object object = this.get(index);
- try {
- return new BigInteger(object.toString());
- } catch (Exception e) {
- throw new JSONException("JSONArray[" + index +
- "] could not convert to BigInteger.", e);
- }
- }
-
- /**
- * Get the int value associated with an index.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The value.
- * @throws JSONException
- * If the key is not found or if the value is not a number.
- */
- public int getInt(int index) throws JSONException {
- Object object = this.get(index);
- try {
- return object instanceof Number ? ((Number) object).intValue()
- : Integer.parseInt((String) object);
- } catch (Exception e) {
- throw new JSONException("JSONArray[" + index + "] is not a number.", e);
- }
- }
-
- /**
- * Get the JSONArray associated with an index.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return A JSONArray value.
- * @throws JSONException
- * If there is no value for the index. or if the value is not a
- * JSONArray
- */
- public JSONArray getJSONArray(int index) throws JSONException {
- Object object = this.get(index);
- if (object instanceof JSONArray) {
- return (JSONArray) object;
- }
- throw new JSONException("JSONArray[" + index + "] is not a JSONArray.");
- }
-
- /**
- * Get the JSONObject associated with an index.
- *
- * @param index
- * subscript
- * @return A JSONObject value.
- * @throws JSONException
- * If there is no value for the index or if the value is not a
- * JSONObject
- */
- public JSONObject getJSONObject(int index) throws JSONException {
- Object object = this.get(index);
- if (object instanceof JSONObject) {
- return (JSONObject) object;
- }
- throw new JSONException("JSONArray[" + index + "] is not a JSONObject.");
- }
-
- /**
- * Get the long value associated with an index.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The value.
- * @throws JSONException
- * If the key is not found or if the value cannot be converted
- * to a number.
- */
- public long getLong(int index) throws JSONException {
- Object object = this.get(index);
- try {
- return object instanceof Number ? ((Number) object).longValue()
- : Long.parseLong((String) object);
- } catch (Exception e) {
- throw new JSONException("JSONArray[" + index + "] is not a number.", e);
- }
- }
-
- /**
- * Get the string associated with an index.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return A string value.
- * @throws JSONException
- * If there is no string value for the index.
- */
- public String getString(int index) throws JSONException {
- Object object = this.get(index);
- if (object instanceof String) {
- return (String) object;
- }
- throw new JSONException("JSONArray[" + index + "] not a string.");
- }
-
- /**
- * Determine if the value is <code>null</code>.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return true if the value at the index is <code>null</code>, or if there is no value.
- */
- public boolean isNull(int index) {
- return JSONObject.NULL.equals(this.opt(index));
- }
-
- /**
- * Make a string from the contents of this JSONArray. The
- * <code>separator</code> string is inserted between each element. Warning:
- * This method assumes that the data structure is acyclical.
- *
- * @param separator
- * A string that will be inserted between the elements.
- * @return a string.
- * @throws JSONException
- * If the array contains an invalid number.
- */
- public String join(String separator) throws JSONException {
- int len = this.length();
- StringBuilder sb = new StringBuilder();
-
- for (int i = 0; i < len; i += 1) {
- if (i > 0) {
- sb.append(separator);
- }
- sb.append(JSONObject.valueToString(this.myArrayList.get(i)));
- }
- return sb.toString();
- }
-
- /**
- * Get the number of elements in the JSONArray, included nulls.
- *
- * @return The length (or size).
- */
- public int length() {
- return this.myArrayList.size();
- }
-
- /**
- * Get the optional object value associated with an index.
- *
- * @param index
- * The index must be between 0 and length() - 1. If not, null is returned.
- * @return An object value, or null if there is no object at that index.
- */
- public Object opt(int index) {
- return (index < 0 || index >= this.length()) ? null : this.myArrayList
- .get(index);
- }
-
- /**
- * Get the optional boolean value associated with an index. It returns false
- * if there is no value at that index, or if the value is not Boolean.TRUE
- * or the String "true".
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The truth.
- */
- public boolean optBoolean(int index) {
- return this.optBoolean(index, false);
- }
-
- /**
- * Get the optional boolean value associated with an index. It returns the
- * defaultValue if there is no value at that index or if it is not a Boolean
- * or the String "true" or "false" (case insensitive).
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @param defaultValue
- * A boolean default.
- * @return The truth.
- */
- public boolean optBoolean(int index, boolean defaultValue) {
- try {
- return this.getBoolean(index);
- } catch (Exception e) {
- return defaultValue;
- }
- }
-
- /**
- * Get the optional double value associated with an index. NaN is returned
- * if there is no value for the index, or if the value is not a number and
- * cannot be converted to a number.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The value.
- */
- public double optDouble(int index) {
- return this.optDouble(index, Double.NaN);
- }
-
- /**
- * Get the optional double value associated with an index. The defaultValue
- * is returned if there is no value for the index, or if the value is not a
- * number and cannot be converted to a number.
- *
- * @param index
- * subscript
- * @param defaultValue
- * The default value.
- * @return The value.
- */
- public double optDouble(int index, double defaultValue) {
- Object val = this.opt(index);
- if (JSONObject.NULL.equals(val)) {
- return defaultValue;
- }
- if (val instanceof Number){
- return ((Number) val).doubleValue();
- }
- if (val instanceof String) {
- try {
- return Double.parseDouble((String) val);
- } catch (Exception e) {
- return defaultValue;
- }
- }
+ }
+ }
+ }
+
+ /**
+ * Construct a JSONArray from a source JSON text.
+ *
+ * @param source
+ * A string that begins with <code>[</code> <small>(left
+ * bracket)</small> and ends with <code>]</code> <small>(right
+ * bracket)</small>.
+ * @throws JSONException
+ * If there is a syntax error.
+ */
+ public JSONArray(String source) throws JSONException
+ {
+ this(new JSONTokener(source));
+ }
+
+ /**
+ * Construct a JSONArray from a Collection.
+ *
+ * @param collection
+ * A Collection.
+ */
+ public JSONArray(Collection<?> collection)
+ {
+ if (collection == null)
+ {
+ this.myArrayList = new ArrayList<Object>();
+ }
+ else
+ {
+ this.myArrayList = new ArrayList<Object>(collection.size());
+ for (Object o : collection)
+ {
+ this.myArrayList.add(JSONObject.wrap(o));
+ }
+ }
+ }
+
+ /**
+ * Construct a JSONArray from an array
+ *
+ * @throws JSONException
+ * If not an array or if an array value is non-finite number.
+ */
+ public JSONArray(Object array) throws JSONException
+ {
+ this();
+ if (array.getClass().isArray())
+ {
+ int length = Array.getLength(array);
+ this.myArrayList.ensureCapacity(length);
+ for (int i = 0; i < length; i += 1)
+ {
+ this.put(JSONObject.wrap(Array.get(array, i)));
+ }
+ }
+ else
+ {
+ throw new JSONException(
+ "JSONArray initial value should be a string or collection or array.");
+ }
+ }
+
+ @Override
+ public Iterator<Object> iterator()
+ {
+ return this.myArrayList.iterator();
+ }
+
+ /**
+ * Get the object value associated with an index.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return An object value.
+ * @throws JSONException
+ * If there is no value for the index.
+ */
+ public Object get(int index) throws JSONException
+ {
+ Object object = this.opt(index);
+ if (object == null)
+ {
+ throw new JSONException("JSONArray[" + index + "] not found.");
+ }
+ return object;
+ }
+
+ /**
+ * Get the boolean value associated with an index. The string values "true"
+ * and "false" are converted to boolean.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The truth.
+ * @throws JSONException
+ * If there is no value for the index or if the value is not
+ * convertible to boolean.
+ */
+ public boolean getBoolean(int index) throws JSONException
+ {
+ Object object = this.get(index);
+ if (object.equals(Boolean.FALSE) || (object instanceof String
+ && ((String) object).equalsIgnoreCase("false")))
+ {
+ return false;
+ }
+ else if (object.equals(Boolean.TRUE) || (object instanceof String
+ && ((String) object).equalsIgnoreCase("true")))
+ {
+ return true;
+ }
+ throw new JSONException("JSONArray[" + index + "] is not a boolean.");
+ }
+
+ /**
+ * Get the double value associated with an index.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The value.
+ * @throws JSONException
+ * If the key is not found or if the value cannot be converted to a
+ * number.
+ */
+ public double getDouble(int index) throws JSONException
+ {
+ Object object = this.get(index);
+ try
+ {
+ return object instanceof Number ? ((Number) object).doubleValue()
+ : Double.parseDouble((String) object);
+ } catch (Exception e)
+ {
+ throw new JSONException("JSONArray[" + index + "] is not a number.",
+ e);
+ }
+ }
+
+ /**
+ * Get the float value associated with a key.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The numeric value.
+ * @throws JSONException
+ * if the key is not found or if the value is not a Number object
+ * and cannot be converted to a number.
+ */
+ public float getFloat(int index) throws JSONException
+ {
+ Object object = this.get(index);
+ try
+ {
+ return object instanceof Number ? ((Number) object).floatValue()
+ : Float.parseFloat(object.toString());
+ } catch (Exception e)
+ {
+ throw new JSONException("JSONArray[" + index + "] is not a number.",
+ e);
+ }
+ }
+
+ /**
+ * Get the Number value associated with a key.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The numeric value.
+ * @throws JSONException
+ * if the key is not found or if the value is not a Number object
+ * and cannot be converted to a number.
+ */
+ public Number getNumber(int index) throws JSONException
+ {
+ Object object = this.get(index);
+ try
+ {
+ if (object instanceof Number)
+ {
+ return (Number) object;
+ }
+ return JSONObject.stringToNumber(object.toString());
+ } catch (Exception e)
+ {
+ throw new JSONException("JSONArray[" + index + "] is not a number.",
+ e);
+ }
+ }
+
+ /**
+ * Get the enum value associated with an index.
+ *
+ * @param clazz
+ * The type of enum to retrieve.
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The enum value at the index location
+ * @throws JSONException
+ * if the key is not found or if the value cannot be converted to an
+ * enum.
+ */
+ public <E extends Enum<E>> E getEnum(Class<E> clazz, int index)
+ throws JSONException
+ {
+ E val = optEnum(clazz, index);
+ if (val == null)
+ {
+ // JSONException should really take a throwable argument.
+ // If it did, I would re-implement this with the Enum.valueOf
+ // method and place any thrown exception in the JSONException
+ throw new JSONException(
+ "JSONArray[" + index + "] is not an enum of type "
+ + JSONObject.quote(clazz.getSimpleName()) + ".");
+ }
+ return val;
+ }
+
+ /**
+ * Get the BigDecimal value associated with an index.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The value.
+ * @throws JSONException
+ * If the key is not found or if the value cannot be converted to a
+ * BigDecimal.
+ */
+ public BigDecimal getBigDecimal(int index) throws JSONException
+ {
+ Object object = this.get(index);
+ try
+ {
+ return new BigDecimal(object.toString());
+ } catch (Exception e)
+ {
+ throw new JSONException(
+ "JSONArray[" + index + "] could not convert to BigDecimal.",
+ e);
+ }
+ }
+
+ /**
+ * Get the BigInteger value associated with an index.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The value.
+ * @throws JSONException
+ * If the key is not found or if the value cannot be converted to a
+ * BigInteger.
+ */
+ public BigInteger getBigInteger(int index) throws JSONException
+ {
+ Object object = this.get(index);
+ try
+ {
+ return new BigInteger(object.toString());
+ } catch (Exception e)
+ {
+ throw new JSONException(
+ "JSONArray[" + index + "] could not convert to BigInteger.",
+ e);
+ }
+ }
+
+ /**
+ * Get the int value associated with an index.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The value.
+ * @throws JSONException
+ * If the key is not found or if the value is not a number.
+ */
+ public int getInt(int index) throws JSONException
+ {
+ Object object = this.get(index);
+ try
+ {
+ return object instanceof Number ? ((Number) object).intValue()
+ : Integer.parseInt((String) object);
+ } catch (Exception e)
+ {
+ throw new JSONException("JSONArray[" + index + "] is not a number.",
+ e);
+ }
+ }
+
+ /**
+ * Get the JSONArray associated with an index.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return A JSONArray value.
+ * @throws JSONException
+ * If there is no value for the index. or if the value is not a
+ * JSONArray
+ */
+ public JSONArray getJSONArray(int index) throws JSONException
+ {
+ Object object = this.get(index);
+ if (object instanceof JSONArray)
+ {
+ return (JSONArray) object;
+ }
+ throw new JSONException("JSONArray[" + index + "] is not a JSONArray.");
+ }
+
+ /**
+ * Get the JSONObject associated with an index.
+ *
+ * @param index
+ * subscript
+ * @return A JSONObject value.
+ * @throws JSONException
+ * If there is no value for the index or if the value is not a
+ * JSONObject
+ */
+ public JSONObject getJSONObject(int index) throws JSONException
+ {
+ Object object = this.get(index);
+ if (object instanceof JSONObject)
+ {
+ return (JSONObject) object;
+ }
+ throw new JSONException(
+ "JSONArray[" + index + "] is not a JSONObject.");
+ }
+
+ /**
+ * Get the long value associated with an index.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The value.
+ * @throws JSONException
+ * If the key is not found or if the value cannot be converted to a
+ * number.
+ */
+ public long getLong(int index) throws JSONException
+ {
+ Object object = this.get(index);
+ try
+ {
+ return object instanceof Number ? ((Number) object).longValue()
+ : Long.parseLong((String) object);
+ } catch (Exception e)
+ {
+ throw new JSONException("JSONArray[" + index + "] is not a number.",
+ e);
+ }
+ }
+
+ /**
+ * Get the string associated with an index.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return A string value.
+ * @throws JSONException
+ * If there is no string value for the index.
+ */
+ public String getString(int index) throws JSONException
+ {
+ Object object = this.get(index);
+ if (object instanceof String)
+ {
+ return (String) object;
+ }
+ throw new JSONException("JSONArray[" + index + "] not a string.");
+ }
+
+ /**
+ * Determine if the value is <code>null</code>.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return true if the value at the index is <code>null</code>, or if there is
+ * no value.
+ */
+ public boolean isNull(int index)
+ {
+ return JSONObject.NULL.equals(this.opt(index));
+ }
+
+ /**
+ * Make a string from the contents of this JSONArray. The
+ * <code>separator</code> string is inserted between each element. Warning:
+ * This method assumes that the data structure is acyclical.
+ *
+ * @param separator
+ * A string that will be inserted between the elements.
+ * @return a string.
+ * @throws JSONException
+ * If the array contains an invalid number.
+ */
+ public String join(String separator) throws JSONException
+ {
+ int len = this.length();
+ StringBuilder sb = new StringBuilder();
+
+ for (int i = 0; i < len; i += 1)
+ {
+ if (i > 0)
+ {
+ sb.append(separator);
+ }
+ sb.append(JSONObject.valueToString(this.myArrayList.get(i)));
+ }
+ return sb.toString();
+ }
+
+ /**
+ * Get the number of elements in the JSONArray, included nulls.
+ *
+ * @return The length (or size).
+ */
+ public int length()
+ {
+ return this.myArrayList.size();
+ }
+
+ /**
+ * Get the optional object value associated with an index.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1. If not, null is
+ * returned.
+ * @return An object value, or null if there is no object at that index.
+ */
+ public Object opt(int index)
+ {
+ return (index < 0 || index >= this.length()) ? null
+ : this.myArrayList.get(index);
+ }
+
+ /**
+ * Get the optional boolean value associated with an index. It returns false
+ * if there is no value at that index, or if the value is not Boolean.TRUE or
+ * the String "true".
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The truth.
+ */
+ public boolean optBoolean(int index)
+ {
+ return this.optBoolean(index, false);
+ }
+
+ /**
+ * Get the optional boolean value associated with an index. It returns the
+ * defaultValue if there is no value at that index or if it is not a Boolean
+ * or the String "true" or "false" (case insensitive).
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @param defaultValue
+ * A boolean default.
+ * @return The truth.
+ */
+ public boolean optBoolean(int index, boolean defaultValue)
+ {
+ try
+ {
+ return this.getBoolean(index);
+ } catch (Exception e)
+ {
+ return defaultValue;
+ }
+ }
+
+ /**
+ * Get the optional double value associated with an index. NaN is returned if
+ * there is no value for the index, or if the value is not a number and cannot
+ * be converted to a number.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The value.
+ */
+ public double optDouble(int index)
+ {
+ return this.optDouble(index, Double.NaN);
+ }
+
+ /**
+ * Get the optional double value associated with an index. The defaultValue is
+ * returned if there is no value for the index, or if the value is not a
+ * number and cannot be converted to a number.
+ *
+ * @param index
+ * subscript
+ * @param defaultValue
+ * The default value.
+ * @return The value.
+ */
+ public double optDouble(int index, double defaultValue)
+ {
+ Object val = this.opt(index);
+ if (JSONObject.NULL.equals(val))
+ {
+ return defaultValue;
+ }
+ if (val instanceof Number)
+ {
+ return ((Number) val).doubleValue();
+ }
+ if (val instanceof String)
+ {
+ try
+ {
+ return Double.parseDouble((String) val);
+ } catch (Exception e)
+ {
return defaultValue;
- }
-
- /**
- * Get the optional float value associated with an index. NaN is returned
- * if there is no value for the index, or if the value is not a number and
- * cannot be converted to a number.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The value.
- */
- public float optFloat(int index) {
- return this.optFloat(index, Float.NaN);
- }
-
- /**
- * Get the optional float value associated with an index. The defaultValue
- * is returned if there is no value for the index, or if the value is not a
- * number and cannot be converted to a number.
- *
- * @param index
- * subscript
- * @param defaultValue
- * The default value.
- * @return The value.
- */
- public float optFloat(int index, float defaultValue) {
- Object val = this.opt(index);
- if (JSONObject.NULL.equals(val)) {
- return defaultValue;
- }
- if (val instanceof Number){
- return ((Number) val).floatValue();
- }
- if (val instanceof String) {
- try {
- return Float.parseFloat((String) val);
- } catch (Exception e) {
- return defaultValue;
- }
- }
+ }
+ }
+ return defaultValue;
+ }
+
+ /**
+ * Get the optional float value associated with an index. NaN is returned if
+ * there is no value for the index, or if the value is not a number and cannot
+ * be converted to a number.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The value.
+ */
+ public float optFloat(int index)
+ {
+ return this.optFloat(index, Float.NaN);
+ }
+
+ /**
+ * Get the optional float value associated with an index. The defaultValue is
+ * returned if there is no value for the index, or if the value is not a
+ * number and cannot be converted to a number.
+ *
+ * @param index
+ * subscript
+ * @param defaultValue
+ * The default value.
+ * @return The value.
+ */
+ public float optFloat(int index, float defaultValue)
+ {
+ Object val = this.opt(index);
+ if (JSONObject.NULL.equals(val))
+ {
+ return defaultValue;
+ }
+ if (val instanceof Number)
+ {
+ return ((Number) val).floatValue();
+ }
+ if (val instanceof String)
+ {
+ try
+ {
+ return Float.parseFloat((String) val);
+ } catch (Exception e)
+ {
return defaultValue;
- }
-
- /**
- * Get the optional int value associated with an index. Zero is returned if
- * there is no value for the index, or if the value is not a number and
- * cannot be converted to a number.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The value.
- */
- public int optInt(int index) {
- return this.optInt(index, 0);
- }
-
- /**
- * Get the optional int value associated with an index. The defaultValue is
- * returned if there is no value for the index, or if the value is not a
- * number and cannot be converted to a number.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @param defaultValue
- * The default value.
- * @return The value.
- */
- public int optInt(int index, int defaultValue) {
- Object val = this.opt(index);
- if (JSONObject.NULL.equals(val)) {
- return defaultValue;
- }
- if (val instanceof Number){
- return ((Number) val).intValue();
- }
-
- if (val instanceof String) {
- try {
- return new BigDecimal(val.toString()).intValue();
- } catch (Exception e) {
- return defaultValue;
- }
- }
+ }
+ }
+ return defaultValue;
+ }
+
+ /**
+ * Get the optional int value associated with an index. Zero is returned if
+ * there is no value for the index, or if the value is not a number and cannot
+ * be converted to a number.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The value.
+ */
+ public int optInt(int index)
+ {
+ return this.optInt(index, 0);
+ }
+
+ /**
+ * Get the optional int value associated with an index. The defaultValue is
+ * returned if there is no value for the index, or if the value is not a
+ * number and cannot be converted to a number.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @param defaultValue
+ * The default value.
+ * @return The value.
+ */
+ public int optInt(int index, int defaultValue)
+ {
+ Object val = this.opt(index);
+ if (JSONObject.NULL.equals(val))
+ {
+ return defaultValue;
+ }
+ if (val instanceof Number)
+ {
+ return ((Number) val).intValue();
+ }
+
+ if (val instanceof String)
+ {
+ try
+ {
+ return new BigDecimal(val.toString()).intValue();
+ } catch (Exception e)
+ {
return defaultValue;
- }
-
- /**
- * Get the enum value associated with a key.
- *
- * @param clazz
- * The type of enum to retrieve.
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The enum value at the index location or null if not found
- */
- public <E extends Enum<E>> E optEnum(Class<E> clazz, int index) {
- return this.optEnum(clazz, index, null);
- }
-
- /**
- * Get the enum value associated with a key.
- *
- * @param clazz
- * The type of enum to retrieve.
- * @param index
- * The index must be between 0 and length() - 1.
- * @param defaultValue
- * The default in case the value is not found
- * @return The enum value at the index location or defaultValue if
- * the value is not found or cannot be assigned to clazz
- */
- public <E extends Enum<E>> E optEnum(Class<E> clazz, int index, E defaultValue) {
- try {
- Object val = this.opt(index);
- if (JSONObject.NULL.equals(val)) {
- return defaultValue;
- }
- if (clazz.isAssignableFrom(val.getClass())) {
- // we just checked it!
- @SuppressWarnings("unchecked")
- E myE = (E) val;
- return myE;
- }
- return Enum.valueOf(clazz, val.toString());
- } catch (IllegalArgumentException e) {
- return defaultValue;
- } catch (NullPointerException e) {
- return defaultValue;
- }
- }
-
-
- /**
- * Get the optional BigInteger value associated with an index. The
- * defaultValue is returned if there is no value for the index, or if the
- * value is not a number and cannot be converted to a number.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @param defaultValue
- * The default value.
- * @return The value.
- */
- public BigInteger optBigInteger(int index, BigInteger defaultValue) {
- Object val = this.opt(index);
- if (JSONObject.NULL.equals(val)) {
- return defaultValue;
- }
- if (val instanceof BigInteger){
- return (BigInteger) val;
- }
- if (val instanceof BigDecimal){
- return ((BigDecimal) val).toBigInteger();
- }
- if (val instanceof Double || val instanceof Float){
- return new BigDecimal(((Number) val).doubleValue()).toBigInteger();
- }
- if (val instanceof Long || val instanceof Integer
- || val instanceof Short || val instanceof Byte){
- return BigInteger.valueOf(((Number) val).longValue());
- }
- try {
- final String valStr = val.toString();
- if(JSONObject.isDecimalNotation(valStr)) {
- return new BigDecimal(valStr).toBigInteger();
- }
- return new BigInteger(valStr);
- } catch (Exception e) {
- return defaultValue;
- }
- }
-
- /**
- * Get the optional BigDecimal value associated with an index. The
- * defaultValue is returned if there is no value for the index, or if the
- * value is not a number and cannot be converted to a number.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @param defaultValue
- * The default value.
- * @return The value.
- */
- public BigDecimal optBigDecimal(int index, BigDecimal defaultValue) {
- Object val = this.opt(index);
- if (JSONObject.NULL.equals(val)) {
- return defaultValue;
- }
- if (val instanceof BigDecimal){
- return (BigDecimal) val;
- }
- if (val instanceof BigInteger){
- return new BigDecimal((BigInteger) val);
- }
- if (val instanceof Double || val instanceof Float){
- return new BigDecimal(((Number) val).doubleValue());
- }
- if (val instanceof Long || val instanceof Integer
- || val instanceof Short || val instanceof Byte){
- return new BigDecimal(((Number) val).longValue());
- }
- try {
- return new BigDecimal(val.toString());
- } catch (Exception e) {
- return defaultValue;
- }
- }
-
- /**
- * Get the optional JSONArray associated with an index.
- *
- * @param index
- * subscript
- * @return A JSONArray value, or null if the index has no value, or if the
- * value is not a JSONArray.
- */
- public JSONArray optJSONArray(int index) {
- Object o = this.opt(index);
- return o instanceof JSONArray ? (JSONArray) o : null;
- }
-
- /**
- * Get the optional JSONObject associated with an index. Null is returned if
- * the key is not found, or null if the index has no value, or if the value
- * is not a JSONObject.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return A JSONObject value.
- */
- public JSONObject optJSONObject(int index) {
- Object o = this.opt(index);
- return o instanceof JSONObject ? (JSONObject) o : null;
- }
-
- /**
- * Get the optional long value associated with an index. Zero is returned if
- * there is no value for the index, or if the value is not a number and
- * cannot be converted to a number.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return The value.
- */
- public long optLong(int index) {
- return this.optLong(index, 0);
- }
-
- /**
- * Get the optional long value associated with an index. The defaultValue is
- * returned if there is no value for the index, or if the value is not a
- * number and cannot be converted to a number.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @param defaultValue
- * The default value.
- * @return The value.
- */
- public long optLong(int index, long defaultValue) {
- Object val = this.opt(index);
- if (JSONObject.NULL.equals(val)) {
- return defaultValue;
- }
- if (val instanceof Number){
- return ((Number) val).longValue();
- }
-
- if (val instanceof String) {
- try {
- return new BigDecimal(val.toString()).longValue();
- } catch (Exception e) {
- return defaultValue;
- }
- }
+ }
+ }
+ return defaultValue;
+ }
+
+ /**
+ * Get the enum value associated with a key.
+ *
+ * @param clazz
+ * The type of enum to retrieve.
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The enum value at the index location or null if not found
+ */
+ public <E extends Enum<E>> E optEnum(Class<E> clazz, int index)
+ {
+ return this.optEnum(clazz, index, null);
+ }
+
+ /**
+ * Get the enum value associated with a key.
+ *
+ * @param clazz
+ * The type of enum to retrieve.
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @param defaultValue
+ * The default in case the value is not found
+ * @return The enum value at the index location or defaultValue if the value
+ * is not found or cannot be assigned to clazz
+ */
+ public <E extends Enum<E>> E optEnum(Class<E> clazz, int index,
+ E defaultValue)
+ {
+ try
+ {
+ Object val = this.opt(index);
+ if (JSONObject.NULL.equals(val))
+ {
return defaultValue;
- }
-
- /**
- * Get an optional {@link Number} value associated with a key, or <code>null</code>
- * if there is no such key or if the value is not a number. If the value is a string,
- * an attempt will be made to evaluate it as a number ({@link BigDecimal}). This method
- * would be used in cases where type coercion of the number value is unwanted.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return An object which is the value.
- */
- public Number optNumber(int index) {
- return this.optNumber(index, null);
- }
-
- /**
- * Get an optional {@link Number} value associated with a key, or the default if there
- * is no such key or if the value is not a number. If the value is a string,
- * an attempt will be made to evaluate it as a number ({@link BigDecimal}). This method
- * would be used in cases where type coercion of the number value is unwanted.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @param defaultValue
- * The default.
- * @return An object which is the value.
- */
- public Number optNumber(int index, Number defaultValue) {
- Object val = this.opt(index);
- if (JSONObject.NULL.equals(val)) {
- return defaultValue;
- }
- if (val instanceof Number){
- return (Number) val;
- }
-
- if (val instanceof String) {
- try {
- return JSONObject.stringToNumber((String) val);
- } catch (Exception e) {
- return defaultValue;
- }
- }
+ }
+ if (clazz.isAssignableFrom(val.getClass()))
+ {
+ // we just checked it!
+ @SuppressWarnings("unchecked")
+ E myE = (E) val;
+ return myE;
+ }
+ return Enum.valueOf(clazz, val.toString());
+ } catch (IllegalArgumentException e)
+ {
+ return defaultValue;
+ } catch (NullPointerException e)
+ {
+ return defaultValue;
+ }
+ }
+
+ /**
+ * Get the optional BigInteger value associated with an index. The
+ * defaultValue is returned if there is no value for the index, or if the
+ * value is not a number and cannot be converted to a number.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @param defaultValue
+ * The default value.
+ * @return The value.
+ */
+ public BigInteger optBigInteger(int index, BigInteger defaultValue)
+ {
+ Object val = this.opt(index);
+ if (JSONObject.NULL.equals(val))
+ {
+ return defaultValue;
+ }
+ if (val instanceof BigInteger)
+ {
+ return (BigInteger) val;
+ }
+ if (val instanceof BigDecimal)
+ {
+ return ((BigDecimal) val).toBigInteger();
+ }
+ if (val instanceof Double || val instanceof Float)
+ {
+ return new BigDecimal(((Number) val).doubleValue()).toBigInteger();
+ }
+ if (val instanceof Long || val instanceof Integer
+ || val instanceof Short || val instanceof Byte)
+ {
+ return BigInteger.valueOf(((Number) val).longValue());
+ }
+ try
+ {
+ final String valStr = val.toString();
+ if (JSONObject.isDecimalNotation(valStr))
+ {
+ return new BigDecimal(valStr).toBigInteger();
+ }
+ return new BigInteger(valStr);
+ } catch (Exception e)
+ {
+ return defaultValue;
+ }
+ }
+
+ /**
+ * Get the optional BigDecimal value associated with an index. The
+ * defaultValue is returned if there is no value for the index, or if the
+ * value is not a number and cannot be converted to a number.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @param defaultValue
+ * The default value.
+ * @return The value.
+ */
+ public BigDecimal optBigDecimal(int index, BigDecimal defaultValue)
+ {
+ Object val = this.opt(index);
+ if (JSONObject.NULL.equals(val))
+ {
+ return defaultValue;
+ }
+ if (val instanceof BigDecimal)
+ {
+ return (BigDecimal) val;
+ }
+ if (val instanceof BigInteger)
+ {
+ return new BigDecimal((BigInteger) val);
+ }
+ if (val instanceof Double || val instanceof Float)
+ {
+ return new BigDecimal(((Number) val).doubleValue());
+ }
+ if (val instanceof Long || val instanceof Integer
+ || val instanceof Short || val instanceof Byte)
+ {
+ return new BigDecimal(((Number) val).longValue());
+ }
+ try
+ {
+ return new BigDecimal(val.toString());
+ } catch (Exception e)
+ {
+ return defaultValue;
+ }
+ }
+
+ /**
+ * Get the optional JSONArray associated with an index.
+ *
+ * @param index
+ * subscript
+ * @return A JSONArray value, or null if the index has no value, or if the
+ * value is not a JSONArray.
+ */
+ public JSONArray optJSONArray(int index)
+ {
+ Object o = this.opt(index);
+ return o instanceof JSONArray ? (JSONArray) o : null;
+ }
+
+ /**
+ * Get the optional JSONObject associated with an index. Null is returned if
+ * the key is not found, or null if the index has no value, or if the value is
+ * not a JSONObject.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return A JSONObject value.
+ */
+ public JSONObject optJSONObject(int index)
+ {
+ Object o = this.opt(index);
+ return o instanceof JSONObject ? (JSONObject) o : null;
+ }
+
+ /**
+ * Get the optional long value associated with an index. Zero is returned if
+ * there is no value for the index, or if the value is not a number and cannot
+ * be converted to a number.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return The value.
+ */
+ public long optLong(int index)
+ {
+ return this.optLong(index, 0);
+ }
+
+ /**
+ * Get the optional long value associated with an index. The defaultValue is
+ * returned if there is no value for the index, or if the value is not a
+ * number and cannot be converted to a number.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @param defaultValue
+ * The default value.
+ * @return The value.
+ */
+ public long optLong(int index, long defaultValue)
+ {
+ Object val = this.opt(index);
+ if (JSONObject.NULL.equals(val))
+ {
+ return defaultValue;
+ }
+ if (val instanceof Number)
+ {
+ return ((Number) val).longValue();
+ }
+
+ if (val instanceof String)
+ {
+ try
+ {
+ return new BigDecimal(val.toString()).longValue();
+ } catch (Exception e)
+ {
return defaultValue;
- }
-
- /**
- * Get the optional string value associated with an index. It returns an
- * empty string if there is no value at that index. If the value is not a
- * string and is not null, then it is converted to a string.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @return A String value.
- */
- public String optString(int index) {
- return this.optString(index, "");
- }
-
- /**
- * Get the optional string associated with an index. The defaultValue is
- * returned if the key is not found.
- *
- * @param index
- * The index must be between 0 and length() - 1.
- * @param defaultValue
- * The default value.
- * @return A String value.
- */
- public String optString(int index, String defaultValue) {
- Object object = this.opt(index);
- return JSONObject.NULL.equals(object) ? defaultValue : object
- .toString();
- }
-
- /**
- * Append a boolean value. This increases the array's length by one.
- *
- * @param value
- * A boolean value.
- * @return this.
- */
- public JSONArray put(boolean value) {
- return this.put(value ? Boolean.TRUE : Boolean.FALSE);
- }
-
- /**
- * Put a value in the JSONArray, where the value will be a JSONArray which
- * is produced from a Collection.
- *
- * @param value
- * A Collection value.
- * @return this.
- * @throws JSONException
- * If the value is non-finite number.
- */
- public JSONArray put(Collection<?> value) {
- return this.put(new JSONArray(value));
- }
-
- /**
- * Append a double value. This increases the array's length by one.
- *
- * @param value
- * A double value.
- * @return this.
- * @throws JSONException
- * if the value is not finite.
- */
- public JSONArray put(double value) throws JSONException {
- return this.put(Double.valueOf(value));
- }
-
- /**
- * Append a float value. This increases the array's length by one.
- *
- * @param value
- * A float value.
- * @return this.
- * @throws JSONException
- * if the value is not finite.
- */
- public JSONArray put(float value) throws JSONException {
- return this.put(Float.valueOf(value));
- }
-
- /**
- * Append an int value. This increases the array's length by one.
- *
- * @param value
- * An int value.
- * @return this.
- */
- public JSONArray put(int value) {
- return this.put(Integer.valueOf(value));
- }
-
- /**
- * Append an long value. This increases the array's length by one.
- *
- * @param value
- * A long value.
- * @return this.
- */
- public JSONArray put(long value) {
- return this.put(Long.valueOf(value));
- }
-
- /**
- * Put a value in the JSONArray, where the value will be a JSONObject which
- * is produced from a Map.
- *
- * @param value
- * A Map value.
- * @return this.
- * @throws JSONException
- * If a value in the map is non-finite number.
- * @throws NullPointerException
- * If a key in the map is <code>null</code>
- */
- public JSONArray put(Map<?, ?> value) {
- return this.put(new JSONObject(value));
- }
-
- /**
- * Append an object value. This increases the array's length by one.
- *
- * @param value
- * An object value. The value should be a Boolean, Double,
- * Integer, JSONArray, JSONObject, Long, or String, or the
- * JSONObject.NULL object.
- * @return this.
- * @throws JSONException
- * If the value is non-finite number.
- */
- public JSONArray put(Object value) {
- JSONObject.testValidity(value);
- this.myArrayList.add(value);
- return this;
- }
-
- /**
- * Put or replace a boolean value in the JSONArray. If the index is greater
- * than the length of the JSONArray, then null elements will be added as
- * necessary to pad it out.
- *
- * @param index
- * The subscript.
- * @param value
- * A boolean value.
- * @return this.
- * @throws JSONException
- * If the index is negative.
- */
- public JSONArray put(int index, boolean value) throws JSONException {
- return this.put(index, value ? Boolean.TRUE : Boolean.FALSE);
- }
-
- /**
- * Put a value in the JSONArray, where the value will be a JSONArray which
- * is produced from a Collection.
- *
- * @param index
- * The subscript.
- * @param value
- * A Collection value.
- * @return this.
- * @throws JSONException
- * If the index is negative or if the value is non-finite.
- */
- public JSONArray put(int index, Collection<?> value) throws JSONException {
- return this.put(index, new JSONArray(value));
- }
-
- /**
- * Put or replace a double value. If the index is greater than the length of
- * the JSONArray, then null elements will be added as necessary to pad it
- * out.
- *
- * @param index
- * The subscript.
- * @param value
- * A double value.
- * @return this.
- * @throws JSONException
- * If the index is negative or if the value is non-finite.
- */
- public JSONArray put(int index, double value) throws JSONException {
- return this.put(index, Double.valueOf(value));
- }
-
- /**
- * Put or replace a float value. If the index is greater than the length of
- * the JSONArray, then null elements will be added as necessary to pad it
- * out.
- *
- * @param index
- * The subscript.
- * @param value
- * A float value.
- * @return this.
- * @throws JSONException
- * If the index is negative or if the value is non-finite.
- */
- public JSONArray put(int index, float value) throws JSONException {
- return this.put(index, Float.valueOf(value));
- }
-
- /**
- * Put or replace an int value. If the index is greater than the length of
- * the JSONArray, then null elements will be added as necessary to pad it
- * out.
- *
- * @param index
- * The subscript.
- * @param value
- * An int value.
- * @return this.
- * @throws JSONException
- * If the index is negative.
- */
- public JSONArray put(int index, int value) throws JSONException {
- return this.put(index, Integer.valueOf(value));
- }
-
- /**
- * Put or replace a long value. If the index is greater than the length of
- * the JSONArray, then null elements will be added as necessary to pad it
- * out.
- *
- * @param index
- * The subscript.
- * @param value
- * A long value.
- * @return this.
- * @throws JSONException
- * If the index is negative.
- */
- public JSONArray put(int index, long value) throws JSONException {
- return this.put(index, Long.valueOf(value));
- }
-
- /**
- * Put a value in the JSONArray, where the value will be a JSONObject that
- * is produced from a Map.
- *
- * @param index
- * The subscript.
- * @param value
- * The Map value.
- * @return this.
- * @throws JSONException
- * If the index is negative or if the the value is an invalid
- * number.
- * @throws NullPointerException
- * If a key in the map is <code>null</code>
- */
- public JSONArray put(int index, Map<?, ?> value) throws JSONException {
- this.put(index, new JSONObject(value));
- return this;
- }
-
- /**
- * Put or replace an object value in the JSONArray. If the index is greater
- * than the length of the JSONArray, then null elements will be added as
- * necessary to pad it out.
- *
- * @param index
- * The subscript.
- * @param value
- * The value to put into the array. The value should be a
- * Boolean, Double, Integer, JSONArray, JSONObject, Long, or
- * String, or the JSONObject.NULL object.
- * @return this.
- * @throws JSONException
- * If the index is negative or if the the value is an invalid
- * number.
- */
- public JSONArray put(int index, Object value) throws JSONException {
- if (index < 0) {
- throw new JSONException("JSONArray[" + index + "] not found.");
- }
- if (index < this.length()) {
- JSONObject.testValidity(value);
- this.myArrayList.set(index, value);
- return this;
- }
- if(index == this.length()){
- // simple append
- return this.put(value);
- }
- // if we are inserting past the length, we want to grow the array all at once
- // instead of incrementally.
- this.myArrayList.ensureCapacity(index + 1);
- while (index != this.length()) {
- // we don't need to test validity of NULL objects
- this.myArrayList.add(JSONObject.NULL);
- }
- return this.put(value);
- }
-
- /**
- * Creates a JSONPointer using an initialization string and tries to
- * match it to an item within this JSONArray. For example, given a
- * JSONArray initialized with this document:
- * <pre>
- * [
- * {"b":"c"}
- * ]
- * </pre>
- * and this JSONPointer string:
- * <pre>
- * "/0/b"
- * </pre>
- * Then this method will return the String "c"
- * A JSONPointerException may be thrown from code called by this method.
- *
- * @param jsonPointer string that can be used to create a JSONPointer
- * @return the item matched by the JSONPointer, otherwise null
- */
- public Object query(String jsonPointer) {
- return query(new JSONPointer(jsonPointer));
- }
-
- /**
- * Uses a uaer initialized JSONPointer and tries to
- * match it to an item whithin this JSONArray. For example, given a
- * JSONArray initialized with this document:
- * <pre>
- * [
- * {"b":"c"}
- * ]
- * </pre>
- * and this JSONPointer:
- * <pre>
- * "/0/b"
- * </pre>
- * Then this method will return the String "c"
- * A JSONPointerException may be thrown from code called by this method.
- *
- * @param jsonPointer string that can be used to create a JSONPointer
- * @return the item matched by the JSONPointer, otherwise null
- */
- public Object query(JSONPointer jsonPointer) {
- return jsonPointer.queryFrom(this);
- }
-
- /**
- * Queries and returns a value from this object using {@code jsonPointer}, or
- * returns null if the query fails due to a missing key.
- *
- * @param jsonPointer the string representation of the JSON pointer
- * @return the queried value or {@code null}
- * @throws IllegalArgumentException if {@code jsonPointer} has invalid syntax
- */
- public Object optQuery(String jsonPointer) {
- return optQuery(new JSONPointer(jsonPointer));
- }
-
- /**
- * Queries and returns a value from this object using {@code jsonPointer}, or
- * returns null if the query fails due to a missing key.
- *
- * @param jsonPointer The JSON pointer
- * @return the queried value or {@code null}
- * @throws IllegalArgumentException if {@code jsonPointer} has invalid syntax
- */
- public Object optQuery(JSONPointer jsonPointer) {
- try {
- return jsonPointer.queryFrom(this);
- } catch (JSONPointerException e) {
- return null;
- }
- }
-
- /**
- * Remove an index and close the hole.
- *
- * @param index
- * The index of the element to be removed.
- * @return The value that was associated with the index, or null if there
- * was no value.
- */
- public Object remove(int index) {
- return index >= 0 && index < this.length()
+ }
+ }
+ return defaultValue;
+ }
+
+ /**
+ * Get an optional {@link Number} value associated with a key, or
+ * <code>null</code> if there is no such key or if the value is not a number.
+ * If the value is a string, an attempt will be made to evaluate it as a
+ * number ({@link BigDecimal}). This method would be used in cases where type
+ * coercion of the number value is unwanted.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return An object which is the value.
+ */
+ public Number optNumber(int index)
+ {
+ return this.optNumber(index, null);
+ }
+
+ /**
+ * Get an optional {@link Number} value associated with a key, or the default
+ * if there is no such key or if the value is not a number. If the value is a
+ * string, an attempt will be made to evaluate it as a number
+ * ({@link BigDecimal}). This method would be used in cases where type
+ * coercion of the number value is unwanted.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @param defaultValue
+ * The default.
+ * @return An object which is the value.
+ */
+ public Number optNumber(int index, Number defaultValue)
+ {
+ Object val = this.opt(index);
+ if (JSONObject.NULL.equals(val))
+ {
+ return defaultValue;
+ }
+ if (val instanceof Number)
+ {
+ return (Number) val;
+ }
+
+ if (val instanceof String)
+ {
+ try
+ {
+ return JSONObject.stringToNumber((String) val);
+ } catch (Exception e)
+ {
+ return defaultValue;
+ }
+ }
+ return defaultValue;
+ }
+
+ /**
+ * Get the optional string value associated with an index. It returns an empty
+ * string if there is no value at that index. If the value is not a string and
+ * is not null, then it is converted to a string.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return A String value.
+ */
+ public String optString(int index)
+ {
+ return this.optString(index, "");
+ }
+
+ /**
+ * Get the optional string associated with an index. The defaultValue is
+ * returned if the key is not found.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @param defaultValue
+ * The default value.
+ * @return A String value.
+ */
+ public String optString(int index, String defaultValue)
+ {
+ Object object = this.opt(index);
+ return JSONObject.NULL.equals(object) ? defaultValue
+ : object.toString();
+ }
+
+ /**
+ * Append a boolean value. This increases the array's length by one.
+ *
+ * @param value
+ * A boolean value.
+ * @return this.
+ */
+ public JSONArray put(boolean value)
+ {
+ return this.put(value ? Boolean.TRUE : Boolean.FALSE);
+ }
+
+ /**
+ * Put a value in the JSONArray, where the value will be a JSONArray which is
+ * produced from a Collection.
+ *
+ * @param value
+ * A Collection value.
+ * @return this.
+ * @throws JSONException
+ * If the value is non-finite number.
+ */
+ public JSONArray put(Collection<?> value)
+ {
+ return this.put(new JSONArray(value));
+ }
+
+ /**
+ * Append a double value. This increases the array's length by one.
+ *
+ * @param value
+ * A double value.
+ * @return this.
+ * @throws JSONException
+ * if the value is not finite.
+ */
+ public JSONArray put(double value) throws JSONException
+ {
+ return this.put(Double.valueOf(value));
+ }
+
+ /**
+ * Append a float value. This increases the array's length by one.
+ *
+ * @param value
+ * A float value.
+ * @return this.
+ * @throws JSONException
+ * if the value is not finite.
+ */
+ public JSONArray put(float value) throws JSONException
+ {
+ return this.put(Float.valueOf(value));
+ }
+
+ /**
+ * Append an int value. This increases the array's length by one.
+ *
+ * @param value
+ * An int value.
+ * @return this.
+ */
+ public JSONArray put(int value)
+ {
+ return this.put(Integer.valueOf(value));
+ }
+
+ /**
+ * Append an long value. This increases the array's length by one.
+ *
+ * @param value
+ * A long value.
+ * @return this.
+ */
+ public JSONArray put(long value)
+ {
+ return this.put(Long.valueOf(value));
+ }
+
+ /**
+ * Put a value in the JSONArray, where the value will be a JSONObject which is
+ * produced from a Map.
+ *
+ * @param value
+ * A Map value.
+ * @return this.
+ * @throws JSONException
+ * If a value in the map is non-finite number.
+ * @throws NullPointerException
+ * If a key in the map is <code>null</code>
+ */
+ public JSONArray put(Map<?, ?> value)
+ {
+ return this.put(new JSONObject(value));
+ }
+
+ /**
+ * Append an object value. This increases the array's length by one.
+ *
+ * @param value
+ * An object value. The value should be a Boolean, Double, Integer,
+ * JSONArray, JSONObject, Long, or String, or the JSONObject.NULL
+ * object.
+ * @return this.
+ * @throws JSONException
+ * If the value is non-finite number.
+ */
+ public JSONArray put(Object value)
+ {
+ JSONObject.testValidity(value);
+ this.myArrayList.add(value);
+ return this;
+ }
+
+ /**
+ * Put or replace a boolean value in the JSONArray. If the index is greater
+ * than the length of the JSONArray, then null elements will be added as
+ * necessary to pad it out.
+ *
+ * @param index
+ * The subscript.
+ * @param value
+ * A boolean value.
+ * @return this.
+ * @throws JSONException
+ * If the index is negative.
+ */
+ public JSONArray put(int index, boolean value) throws JSONException
+ {
+ return this.put(index, value ? Boolean.TRUE : Boolean.FALSE);
+ }
+
+ /**
+ * Put a value in the JSONArray, where the value will be a JSONArray which is
+ * produced from a Collection.
+ *
+ * @param index
+ * The subscript.
+ * @param value
+ * A Collection value.
+ * @return this.
+ * @throws JSONException
+ * If the index is negative or if the value is non-finite.
+ */
+ public JSONArray put(int index, Collection<?> value) throws JSONException
+ {
+ return this.put(index, new JSONArray(value));
+ }
+
+ /**
+ * Put or replace a double value. If the index is greater than the length of
+ * the JSONArray, then null elements will be added as necessary to pad it out.
+ *
+ * @param index
+ * The subscript.
+ * @param value
+ * A double value.
+ * @return this.
+ * @throws JSONException
+ * If the index is negative or if the value is non-finite.
+ */
+ public JSONArray put(int index, double value) throws JSONException
+ {
+ return this.put(index, Double.valueOf(value));
+ }
+
+ /**
+ * Put or replace a float value. If the index is greater than the length of
+ * the JSONArray, then null elements will be added as necessary to pad it out.
+ *
+ * @param index
+ * The subscript.
+ * @param value
+ * A float value.
+ * @return this.
+ * @throws JSONException
+ * If the index is negative or if the value is non-finite.
+ */
+ public JSONArray put(int index, float value) throws JSONException
+ {
+ return this.put(index, Float.valueOf(value));
+ }
+
+ /**
+ * Put or replace an int value. If the index is greater than the length of the
+ * JSONArray, then null elements will be added as necessary to pad it out.
+ *
+ * @param index
+ * The subscript.
+ * @param value
+ * An int value.
+ * @return this.
+ * @throws JSONException
+ * If the index is negative.
+ */
+ public JSONArray put(int index, int value) throws JSONException
+ {
+ return this.put(index, Integer.valueOf(value));
+ }
+
+ /**
+ * Put or replace a long value. If the index is greater than the length of the
+ * JSONArray, then null elements will be added as necessary to pad it out.
+ *
+ * @param index
+ * The subscript.
+ * @param value
+ * A long value.
+ * @return this.
+ * @throws JSONException
+ * If the index is negative.
+ */
+ public JSONArray put(int index, long value) throws JSONException
+ {
+ return this.put(index, Long.valueOf(value));
+ }
+
+ /**
+ * Put a value in the JSONArray, where the value will be a JSONObject that is
+ * produced from a Map.
+ *
+ * @param index
+ * The subscript.
+ * @param value
+ * The Map value.
+ * @return this.
+ * @throws JSONException
+ * If the index is negative or if the the value is an invalid
+ * number.
+ * @throws NullPointerException
+ * If a key in the map is <code>null</code>
+ */
+ public JSONArray put(int index, Map<?, ?> value) throws JSONException
+ {
+ this.put(index, new JSONObject(value));
+ return this;
+ }
+
+ /**
+ * Put or replace an object value in the JSONArray. If the index is greater
+ * than the length of the JSONArray, then null elements will be added as
+ * necessary to pad it out.
+ *
+ * @param index
+ * The subscript.
+ * @param value
+ * The value to put into the array. The value should be a Boolean,
+ * Double, Integer, JSONArray, JSONObject, Long, or String, or the
+ * JSONObject.NULL object.
+ * @return this.
+ * @throws JSONException
+ * If the index is negative or if the the value is an invalid
+ * number.
+ */
+ public JSONArray put(int index, Object value) throws JSONException
+ {
+ if (index < 0)
+ {
+ throw new JSONException("JSONArray[" + index + "] not found.");
+ }
+ if (index < this.length())
+ {
+ JSONObject.testValidity(value);
+ this.myArrayList.set(index, value);
+ return this;
+ }
+ if (index == this.length())
+ {
+ // simple append
+ return this.put(value);
+ }
+ // if we are inserting past the length, we want to grow the array all at
+ // once
+ // instead of incrementally.
+ this.myArrayList.ensureCapacity(index + 1);
+ while (index != this.length())
+ {
+ // we don't need to test validity of NULL objects
+ this.myArrayList.add(JSONObject.NULL);
+ }
+ return this.put(value);
+ }
+
+ /**
+ * Creates a JSONPointer using an initialization string and tries to match it
+ * to an item within this JSONArray. For example, given a JSONArray
+ * initialized with this document:
+ *
+ * <pre>
+ * [
+ * {"b":"c"}
+ * ]
+ * </pre>
+ *
+ * and this JSONPointer string:
+ *
+ * <pre>
+ * "/0/b"
+ * </pre>
+ *
+ * Then this method will return the String "c" A JSONPointerException may be
+ * thrown from code called by this method.
+ *
+ * @param jsonPointer
+ * string that can be used to create a JSONPointer
+ * @return the item matched by the JSONPointer, otherwise null
+ */
+ public Object query(String jsonPointer)
+ {
+ return query(new JSONPointer(jsonPointer));
+ }
+
+ /**
+ * Uses a uaer initialized JSONPointer and tries to match it to an item
+ * whithin this JSONArray. For example, given a JSONArray initialized with
+ * this document:
+ *
+ * <pre>
+ * [
+ * {"b":"c"}
+ * ]
+ * </pre>
+ *
+ * and this JSONPointer:
+ *
+ * <pre>
+ * "/0/b"
+ * </pre>
+ *
+ * Then this method will return the String "c" A JSONPointerException may be
+ * thrown from code called by this method.
+ *
+ * @param jsonPointer
+ * string that can be used to create a JSONPointer
+ * @return the item matched by the JSONPointer, otherwise null
+ */
+ public Object query(JSONPointer jsonPointer)
+ {
+ return jsonPointer.queryFrom(this);
+ }
+
+ /**
+ * Queries and returns a value from this object using {@code jsonPointer}, or
+ * returns null if the query fails due to a missing key.
+ *
+ * @param jsonPointer
+ * the string representation of the JSON pointer
+ * @return the queried value or {@code null}
+ * @throws IllegalArgumentException
+ * if {@code jsonPointer} has invalid syntax
+ */
+ public Object optQuery(String jsonPointer)
+ {
+ return optQuery(new JSONPointer(jsonPointer));
+ }
+
+ /**
+ * Queries and returns a value from this object using {@code jsonPointer}, or
+ * returns null if the query fails due to a missing key.
+ *
+ * @param jsonPointer
+ * The JSON pointer
+ * @return the queried value or {@code null}
+ * @throws IllegalArgumentException
+ * if {@code jsonPointer} has invalid syntax
+ */
+ public Object optQuery(JSONPointer jsonPointer)
+ {
+ try
+ {
+ return jsonPointer.queryFrom(this);
+ } catch (JSONPointerException e)
+ {
+ return null;
+ }
+ }
+
+ /**
+ * Remove an index and close the hole.
+ *
+ * @param index
+ * The index of the element to be removed.
+ * @return The value that was associated with the index, or null if there was
+ * no value.
+ */
+ public Object remove(int index)
+ {
+ return index >= 0 && index < this.length()
? this.myArrayList.remove(index)
: null;
- }
-
- /**
- * Determine if two JSONArrays are similar.
- * They must contain similar sequences.
- *
- * @param other The other JSONArray
- * @return true if they are equal
- */
- public boolean similar(Object other) {
- if (!(other instanceof JSONArray)) {
- return false;
+ }
+
+ /**
+ * Determine if two JSONArrays are similar. They must contain similar
+ * sequences.
+ *
+ * @param other
+ * The other JSONArray
+ * @return true if they are equal
+ */
+ public boolean similar(Object other)
+ {
+ if (!(other instanceof JSONArray))
+ {
+ return false;
+ }
+ int len = this.length();
+ if (len != ((JSONArray) other).length())
+ {
+ return false;
+ }
+ for (int i = 0; i < len; i += 1)
+ {
+ Object valueThis = this.myArrayList.get(i);
+ Object valueOther = ((JSONArray) other).myArrayList.get(i);
+ if (valueThis == valueOther)
+ {
+ continue;
+ }
+ if (valueThis == null)
+ {
+ return false;
+ }
+ if (valueThis instanceof JSONObject)
+ {
+ if (!((JSONObject) valueThis).similar(valueOther))
+ {
+ return false;
}
- int len = this.length();
- if (len != ((JSONArray)other).length()) {
- return false;
+ }
+ else if (valueThis instanceof JSONArray)
+ {
+ if (!((JSONArray) valueThis).similar(valueOther))
+ {
+ return false;
}
- for (int i = 0; i < len; i += 1) {
- Object valueThis = this.myArrayList.get(i);
- Object valueOther = ((JSONArray)other).myArrayList.get(i);
- if(valueThis == valueOther) {
- continue;
- }
- if(valueThis == null) {
- return false;
- }
- if (valueThis instanceof JSONObject) {
- if (!((JSONObject)valueThis).similar(valueOther)) {
- return false;
- }
- } else if (valueThis instanceof JSONArray) {
- if (!((JSONArray)valueThis).similar(valueOther)) {
- return false;
- }
- } else if (!valueThis.equals(valueOther)) {
- return false;
- }
+ }
+ else if (!valueThis.equals(valueOther))
+ {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * Produce a JSONObject by combining a JSONArray of names with the values of
+ * this JSONArray.
+ *
+ * @param names
+ * A JSONArray containing a list of key strings. These will be paired
+ * with the values.
+ * @return A JSONObject, or null if there are no names or if this JSONArray
+ * has no values.
+ * @throws JSONException
+ * If any of the names are null.
+ */
+ public JSONObject toJSONObject(JSONArray names) throws JSONException
+ {
+ if (names == null || names.isEmpty() || this.isEmpty())
+ {
+ return null;
+ }
+ JSONObject jo = new JSONObject(names.length());
+ for (int i = 0; i < names.length(); i += 1)
+ {
+ jo.put(names.getString(i), this.opt(i));
+ }
+ return jo;
+ }
+
+ /**
+ * Make a JSON text of this JSONArray. For compactness, no unnecessary
+ * whitespace is added. If it is not possible to produce a syntactically
+ * correct JSON text then null will be returned instead. This could occur if
+ * the array contains an invalid number.
+ * <p>
+ * <b> Warning: This method assumes that the data structure is acyclical. </b>
+ *
+ * @return a printable, displayable, transmittable representation of the
+ * array.
+ */
+ @Override
+ public String toString()
+ {
+ try
+ {
+ return this.toString(0);
+ } catch (Exception e)
+ {
+ return null;
+ }
+ }
+
+ /**
+ * Make a pretty-printed JSON text of this JSONArray.
+ *
+ * <p>
+ * If <code>indentFactor > 0</code> and the {@link JSONArray} has only one
+ * element, then the array will be output on a single line:
+ *
+ * <pre>
+ * {@code [1]}
+ * </pre>
+ *
+ * <p>
+ * If an array has 2 or more elements, then it will be output across multiple
+ * lines:
+ *
+ * <pre>
+ * {@code
+ * [
+ * 1,
+ * "value 2",
+ * 3
+ * ]
+ * }
+ * </pre>
+ * <p>
+ * <b> Warning: This method assumes that the data structure is acyclical. </b>
+ *
+ * @param indentFactor
+ * The number of spaces to add to each level of indentation.
+ * @return a printable, displayable, transmittable representation of the
+ * object, beginning with <code>[</code> <small>(left
+ * bracket)</small> and ending with <code>]</code> <small>(right
+ * bracket)</small>.
+ * @throws JSONException
+ */
+ public String toString(int indentFactor) throws JSONException
+ {
+ StringWriter sw = new StringWriter();
+ synchronized (sw.getBuffer())
+ {
+ return this.write(sw, indentFactor, 0).toString();
+ }
+ }
+
+ /**
+ * Write the contents of the JSONArray as JSON text to a writer. For
+ * compactness, no whitespace is added.
+ * <p>
+ * <b> Warning: This method assumes that the data structure is acyclical. </b>
+ *
+ * @return The writer.
+ * @throws JSONException
+ */
+ public Writer write(Writer writer) throws JSONException
+ {
+ return this.write(writer, 0, 0);
+ }
+
+ /**
+ * Write the contents of the JSONArray as JSON text to a writer.
+ *
+ * <p>
+ * If <code>indentFactor > 0</code> and the {@link JSONArray} has only one
+ * element, then the array will be output on a single line:
+ *
+ * <pre>
+ * {@code [1]}
+ * </pre>
+ *
+ * <p>
+ * If an array has 2 or more elements, then it will be output across multiple
+ * lines:
+ *
+ * <pre>
+ * {@code
+ * [
+ * 1,
+ * "value 2",
+ * 3
+ * ]
+ * }
+ * </pre>
+ * <p>
+ * <b> Warning: This method assumes that the data structure is acyclical. </b>
+ *
+ * @param writer
+ * Writes the serialized JSON
+ * @param indentFactor
+ * The number of spaces to add to each level of indentation.
+ * @param indent
+ * The indentation of the top level.
+ * @return The writer.
+ * @throws JSONException
+ */
+ public Writer write(Writer writer, int indentFactor, int indent)
+ throws JSONException
+ {
+ try
+ {
+ boolean commanate = false;
+ int length = this.length();
+ writer.write('[');
+
+ if (length == 1)
+ {
+ try
+ {
+ JSONObject.writeValue(writer, this.myArrayList.get(0),
+ indentFactor, indent);
+ } catch (Exception e)
+ {
+ throw new JSONException(
+ "Unable to write JSONArray value at index: 0", e);
}
- return true;
- }
-
- /**
- * Produce a JSONObject by combining a JSONArray of names with the values of
- * this JSONArray.
- *
- * @param names
- * A JSONArray containing a list of key strings. These will be
- * paired with the values.
- * @return A JSONObject, or null if there are no names or if this JSONArray
- * has no values.
- * @throws JSONException
- * If any of the names are null.
- */
- public JSONObject toJSONObject(JSONArray names) throws JSONException {
- if (names == null || names.isEmpty() || this.isEmpty()) {
- return null;
- }
- JSONObject jo = new JSONObject(names.length());
- for (int i = 0; i < names.length(); i += 1) {
- jo.put(names.getString(i), this.opt(i));
- }
- return jo;
- }
-
- /**
- * Make a JSON text of this JSONArray. For compactness, no unnecessary
- * whitespace is added. If it is not possible to produce a syntactically
- * correct JSON text then null will be returned instead. This could occur if
- * the array contains an invalid number.
- * <p><b>
- * Warning: This method assumes that the data structure is acyclical.
- * </b>
- *
- * @return a printable, displayable, transmittable representation of the
- * array.
- */
- @Override
- public String toString() {
- try {
- return this.toString(0);
- } catch (Exception e) {
- return null;
- }
- }
-
- /**
- * Make a pretty-printed JSON text of this JSONArray.
- *
- * <p>If <code>indentFactor > 0</code> and the {@link JSONArray} has only
- * one element, then the array will be output on a single line:
- * <pre>{@code [1]}</pre>
- *
- * <p>If an array has 2 or more elements, then it will be output across
- * multiple lines: <pre>{@code
- * [
- * 1,
- * "value 2",
- * 3
- * ]
- * }</pre>
- * <p><b>
- * Warning: This method assumes that the data structure is acyclical.
- * </b>
- *
- * @param indentFactor
- * The number of spaces to add to each level of indentation.
- * @return a printable, displayable, transmittable representation of the
- * object, beginning with <code>[</code> <small>(left
- * bracket)</small> and ending with <code>]</code>
- * <small>(right bracket)</small>.
- * @throws JSONException
- */
- public String toString(int indentFactor) throws JSONException {
- StringWriter sw = new StringWriter();
- synchronized (sw.getBuffer()) {
- return this.write(sw, indentFactor, 0).toString();
- }
- }
-
- /**
- * Write the contents of the JSONArray as JSON text to a writer. For
- * compactness, no whitespace is added.
- * <p><b>
- * Warning: This method assumes that the data structure is acyclical.
- *</b>
- *
- * @return The writer.
- * @throws JSONException
- */
- public Writer write(Writer writer) throws JSONException {
- return this.write(writer, 0, 0);
- }
-
- /**
- * Write the contents of the JSONArray as JSON text to a writer.
- *
- * <p>If <code>indentFactor > 0</code> and the {@link JSONArray} has only
- * one element, then the array will be output on a single line:
- * <pre>{@code [1]}</pre>
- *
- * <p>If an array has 2 or more elements, then it will be output across
- * multiple lines: <pre>{@code
- * [
- * 1,
- * "value 2",
- * 3
- * ]
- * }</pre>
- * <p><b>
- * Warning: This method assumes that the data structure is acyclical.
- * </b>
- *
- * @param writer
- * Writes the serialized JSON
- * @param indentFactor
- * The number of spaces to add to each level of indentation.
- * @param indent
- * The indentation of the top level.
- * @return The writer.
- * @throws JSONException
- */
- public Writer write(Writer writer, int indentFactor, int indent)
- throws JSONException {
- try {
- boolean commanate = false;
- int length = this.length();
- writer.write('[');
-
- if (length == 1) {
- try {
- JSONObject.writeValue(writer, this.myArrayList.get(0),
- indentFactor, indent);
- } catch (Exception e) {
- throw new JSONException("Unable to write JSONArray value at index: 0", e);
- }
- } else if (length != 0) {
- final int newindent = indent + indentFactor;
-
- for (int i = 0; i < length; i += 1) {
- if (commanate) {
- writer.write(',');
- }
- if (indentFactor > 0) {
- writer.write('\n');
- }
- JSONObject.indent(writer, newindent);
- try {
- JSONObject.writeValue(writer, this.myArrayList.get(i),
- indentFactor, newindent);
- } catch (Exception e) {
- throw new JSONException("Unable to write JSONArray value at index: " + i, e);
- }
- commanate = true;
- }
- if (indentFactor > 0) {
- writer.write('\n');
- }
- JSONObject.indent(writer, indent);
- }
- writer.write(']');
- return writer;
- } catch (IOException e) {
- throw new JSONException(e);
+ }
+ else if (length != 0)
+ {
+ final int newindent = indent + indentFactor;
+
+ for (int i = 0; i < length; i += 1)
+ {
+ if (commanate)
+ {
+ writer.write(',');
+ }
+ if (indentFactor > 0)
+ {
+ writer.write('\n');
+ }
+ JSONObject.indent(writer, newindent);
+ try
+ {
+ JSONObject.writeValue(writer, this.myArrayList.get(i),
+ indentFactor, newindent);
+ } catch (Exception e)
+ {
+ throw new JSONException(
+ "Unable to write JSONArray value at index: " + i, e);
+ }
+ commanate = true;
}
- }
-
- /**
- * Returns a java.util.List containing all of the elements in this array.
- * If an element in the array is a JSONArray or JSONObject it will also
- * be converted.
- * <p>
- * Warning: This method assumes that the data structure is acyclical.
- *
- * @return a java.util.List containing the elements of this array
- */
- public List<Object> toList() {
- List<Object> results = new ArrayList<Object>(this.myArrayList.size());
- for (Object element : this.myArrayList) {
- if (element == null || JSONObject.NULL.equals(element)) {
- results.add(null);
- } else if (element instanceof JSONArray) {
- results.add(((JSONArray) element).toList());
- } else if (element instanceof JSONObject) {
- results.add(((JSONObject) element).toMap());
- } else {
- results.add(element);
- }
+ if (indentFactor > 0)
+ {
+ writer.write('\n');
}
- return results;
- }
-
- /**
- * Check if JSONArray is empty.
- *
- * @return true if JSONArray is empty, otherwise false.
- */
- public boolean isEmpty() {
- return myArrayList.isEmpty();
- }
+ JSONObject.indent(writer, indent);
+ }
+ writer.write(']');
+ return writer;
+ } catch (IOException e)
+ {
+ throw new JSONException(e);
+ }
+ }
+
+ /**
+ * Returns a java.util.List containing all of the elements in this array. If
+ * an element in the array is a JSONArray or JSONObject it will also be
+ * converted.
+ * <p>
+ * Warning: This method assumes that the data structure is acyclical.
+ *
+ * @return a java.util.List containing the elements of this array
+ */
+ public List<Object> toList()
+ {
+ List<Object> results = new ArrayList<Object>(this.myArrayList.size());
+ for (Object element : this.myArrayList)
+ {
+ if (element == null || JSONObject.NULL.equals(element))
+ {
+ results.add(null);
+ }
+ else if (element instanceof JSONArray)
+ {
+ results.add(((JSONArray) element).toList());
+ }
+ else if (element instanceof JSONObject)
+ {
+ results.add(((JSONObject) element).toMap());
+ }
+ else
+ {
+ results.add(element);
+ }
+ }
+ return results;
+ }
+
+ /**
+ * Check if JSONArray is empty.
+ *
+ * @return true if JSONArray is empty, otherwise false.
+ */
+ public boolean isEmpty()
+ {
+ return myArrayList.isEmpty();
+ }
}
git://source.jalview.org / jalview.git / blobdiff