import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
-
/**
* @author FangYidong<fangyidong@yahoo.com.cn>
*/
-public class JSONValue {
- /**
- * Parse JSON text into java object from the input source.
- * Please use parseWithException() if you don't want to ignore the exception.
- *
- * @see org.json.simple.parser.JSONParser#parse(Reader)
- * @see #parseWithException(Reader)
- *
- * @param in
- * @return Instance of the following:
- * org.json.simple.JSONObject,
- * org.json.simple.JSONArray,
- * java.lang.String,
- * java.lang.Number,
- * java.lang.Boolean,
- * null
- *
- * @deprecated this method may throw an {@code Error} instead of returning
- * {@code null}; please use {@link JSONValue#parseWithException(Reader)}
- * instead
- */
+public class JSONValue
+{
+ /**
+ * Parse JSON text into java object from the input source. Please use
+ * parseWithException() if you don't want to ignore the exception.
+ *
+ * @see org.json.simple.parser.JSONParser#parse(Reader)
+ * @see #parseWithException(Reader)
+ *
+ * @param in
+ * @return Instance of the following: org.json.simple.JSONObject,
+ * org.json.simple.JSONArray, java.lang.String, java.lang.Number,
+ * java.lang.Boolean, null
+ *
+ * @deprecated this method may throw an {@code Error} instead of returning
+ * {@code null}; please use
+ * {@link JSONValue#parseWithException(Reader)} instead
+ */
@Deprecated
- public static Object parse(Reader in){
- try{
- JSONParser parser=new JSONParser();
- return parser.parse(in);
- }
- catch(Exception e){
- return null;
- }
- }
-
- /**
- * Parse JSON text into java object from the given string.
- * Please use parseWithException() if you don't want to ignore the exception.
- *
- * @see org.json.simple.parser.JSONParser#parse(Reader)
- * @see #parseWithException(Reader)
- *
- * @param s
- * @return Instance of the following:
- * org.json.simple.JSONObject,
- * org.json.simple.JSONArray,
- * java.lang.String,
- * java.lang.Number,
- * java.lang.Boolean,
- * null
- *
- * @deprecated this method may throw an {@code Error} instead of returning
- * {@code null}; please use {@link JSONValue#parseWithException(String)}
- * instead
- */
+ public static Object parse(Reader in)
+ {
+ try
+ {
+ JSONParser parser = new JSONParser();
+ return parser.parse(in);
+ } catch (Exception e)
+ {
+ return null;
+ }
+ }
+
+ /**
+ * Parse JSON text into java object from the given string. Please use
+ * parseWithException() if you don't want to ignore the exception.
+ *
+ * @see org.json.simple.parser.JSONParser#parse(Reader)
+ * @see #parseWithException(Reader)
+ *
+ * @param s
+ * @return Instance of the following: org.json.simple.JSONObject,
+ * org.json.simple.JSONArray, java.lang.String, java.lang.Number,
+ * java.lang.Boolean, null
+ *
+ * @deprecated this method may throw an {@code Error} instead of returning
+ * {@code null}; please use
+ * {@link JSONValue#parseWithException(String)} instead
+ */
@Deprecated
- public static Object parse(String s){
- StringReader in=new StringReader(s);
- return parse(in);
- }
-
- /**
- * Parse JSON text into java object from the input source.
- *
- * @see org.json.simple.parser.JSONParser
- *
- * @param in
- * @return Instance of the following:
- * org.json.simple.JSONObject,
- * org.json.simple.JSONArray,
- * java.lang.String,
- * java.lang.Number,
- * java.lang.Boolean,
- * null
- *
- * @throws IOException
- * @throws ParseException
- */
- public static Object parseWithException(Reader in) throws IOException, ParseException{
- JSONParser parser=new JSONParser();
- return parser.parse(in);
- }
-
- public static Object parseWithException(String s) throws ParseException{
- JSONParser parser=new JSONParser();
- return parser.parse(s);
- }
-
- /**
- * Encode an object into JSON text and write it to out.
- * <p>
- * If this object is a Map or a List, and it's also a JSONStreamAware or a JSONAware, JSONStreamAware or JSONAware will be considered firstly.
- * <p>
- * DO NOT call this method from writeJSONString(Writer) of a class that implements both JSONStreamAware and (Map or List) with
- * "this" as the first parameter, use JSONObject.writeJSONString(Map, Writer) or JSONArray.writeJSONString(List, Writer) instead.
- *
- * @see org.json.simple.JSONObject#writeJSONString(Map, Writer)
- * @see org.json.simple.JSONArray#writeJSONString(List, Writer)
- *
- * @param value
- * @param writer
- */
- public static void writeJSONString(Object value, Writer out) throws IOException {
- if(value == null){
- out.write("null");
- return;
- }
-
- if(value instanceof String){
- out.write('\"');
- out.write(escape((String)value));
- out.write('\"');
- return;
- }
-
- if(value instanceof Double){
- if(((Double)value).isInfinite() || ((Double)value).isNaN())
- out.write("null");
- else
- out.write(value.toString());
- return;
- }
-
- if(value instanceof Float){
- if(((Float)value).isInfinite() || ((Float)value).isNaN())
- out.write("null");
- else
- out.write(value.toString());
- return;
- }
-
- if(value instanceof Number){
- out.write(value.toString());
- return;
- }
-
- if(value instanceof Boolean){
- out.write(value.toString());
- return;
- }
-
- if((value instanceof JSONStreamAware)){
- ((JSONStreamAware)value).writeJSONString(out);
- return;
- }
-
- if((value instanceof JSONAware)){
- out.write(((JSONAware)value).toJSONString());
- return;
- }
-
- if(value instanceof Map){
- JSONObject.writeJSONString((Map)value, out);
- return;
- }
-
- if(value instanceof Collection){
- JSONArray.writeJSONString((Collection)value, out);
- return;
- }
-
- if(value instanceof byte[]){
- JSONArray.writeJSONString((byte[])value, out);
- return;
- }
-
- if(value instanceof short[]){
- JSONArray.writeJSONString((short[])value, out);
- return;
- }
-
- if(value instanceof int[]){
- JSONArray.writeJSONString((int[])value, out);
- return;
- }
-
- if(value instanceof long[]){
- JSONArray.writeJSONString((long[])value, out);
- return;
- }
-
- if(value instanceof float[]){
- JSONArray.writeJSONString((float[])value, out);
- return;
- }
-
- if(value instanceof double[]){
- JSONArray.writeJSONString((double[])value, out);
- return;
- }
-
- if(value instanceof boolean[]){
- JSONArray.writeJSONString((boolean[])value, out);
- return;
- }
-
- if(value instanceof char[]){
- JSONArray.writeJSONString((char[])value, out);
- return;
- }
-
- if(value instanceof Object[]){
- JSONArray.writeJSONString((Object[])value, out);
- return;
- }
-
- out.write(value.toString());
- }
+ public static Object parse(String s)
+ {
+ StringReader in = new StringReader(s);
+ return parse(in);
+ }
+
+ /**
+ * Parse JSON text into java object from the input source.
+ *
+ * @see org.json.simple.parser.JSONParser
+ *
+ * @param in
+ * @return Instance of the following: org.json.simple.JSONObject,
+ * org.json.simple.JSONArray, java.lang.String, java.lang.Number,
+ * java.lang.Boolean, null
+ *
+ * @throws IOException
+ * @throws ParseException
+ */
+ public static Object parseWithException(Reader in)
+ throws IOException, ParseException
+ {
+ JSONParser parser = new JSONParser();
+ return parser.parse(in);
+ }
+
+ public static Object parseWithException(String s) throws ParseException
+ {
+ JSONParser parser = new JSONParser();
+ return parser.parse(s);
+ }
+
+ /**
+ * Encode an object into JSON text and write it to out.
+ * <p>
+ * If this object is a Map or a List, and it's also a JSONStreamAware or a
+ * JSONAware, JSONStreamAware or JSONAware will be considered firstly.
+ * <p>
+ * DO NOT call this method from writeJSONString(Writer) of a class that
+ * implements both JSONStreamAware and (Map or List) with "this" as the first
+ * parameter, use JSONObject.writeJSONString(Map, Writer) or
+ * JSONArray.writeJSONString(List, Writer) instead.
+ *
+ * @see org.json.simple.JSONObject#writeJSONString(Map, Writer)
+ * @see org.json.simple.JSONArray#writeJSONString(List, Writer)
+ *
+ * @param value
+ * @param writer
+ */
+ public static void writeJSONString(Object value, Writer out)
+ throws IOException
+ {
+ if (value == null)
+ {
+ out.write("null");
+ return;
+ }
+
+ if (value instanceof String)
+ {
+ out.write('\"');
+ out.write(escape((String) value));
+ out.write('\"');
+ return;
+ }
- /**
- * Convert an object to JSON text.
- * <p>
- * If this object is a Map or a List, and it's also a JSONAware, JSONAware will be considered firstly.
- * <p>
- * DO NOT call this method from toJSONString() of a class that implements both JSONAware and Map or List with
- * "this" as the parameter, use JSONObject.toJSONString(Map) or JSONArray.toJSONString(List) instead.
- *
- * @see org.json.simple.JSONObject#toJSONString(Map)
- * @see org.json.simple.JSONArray#toJSONString(List)
- *
- * @param value
- * @return JSON text, or "null" if value is null or it's an NaN or an INF number.
- */
- public static String toJSONString(Object value){
- final StringWriter writer = new StringWriter();
-
- try{
- writeJSONString(value, writer);
- return writer.toString();
- } catch(IOException e){
- // This should never happen for a StringWriter
- throw new RuntimeException(e);
- }
- }
+ if (value instanceof Double)
+ {
+ if (((Double) value).isInfinite() || ((Double) value).isNaN())
+ out.write("null");
+ else
+ out.write(value.toString());
+ return;
+ }
+
+ if (value instanceof Float)
+ {
+ if (((Float) value).isInfinite() || ((Float) value).isNaN())
+ out.write("null");
+ else
+ out.write(value.toString());
+ return;
+ }
- /**
- * Escape quotes, \, /, \r, \n, \b, \f, \t and other control characters (U+0000 through U+001F).
- * @param s
- * @return
- */
- public static String escape(String s){
- if(s==null)
- return null;
- StringBuffer sb = new StringBuffer();
- escape(s, sb);
- return sb.toString();
+ if (value instanceof Number)
+ {
+ out.write(value.toString());
+ return;
}
- /**
- * @param s - Must not be null.
- * @param sb
- */
- static void escape(String s, StringBuffer sb) {
- final int len = s.length();
- for(int i=0;i<len;i++){
- char ch=s.charAt(i);
- switch(ch){
- case '"':
- sb.append("\\\"");
- break;
- case '\\':
- sb.append("\\\\");
- break;
- case '\b':
- sb.append("\\b");
- break;
- case '\f':
- sb.append("\\f");
- break;
- case '\n':
- sb.append("\\n");
- break;
- case '\r':
- sb.append("\\r");
- break;
- case '\t':
- sb.append("\\t");
- break;
- case '/':
- sb.append("\\/");
- break;
- default:
- //Reference: http://www.unicode.org/versions/Unicode5.1.0/
- if((ch>='\u0000' && ch<='\u001F') || (ch>='\u007F' && ch<='\u009F') || (ch>='\u2000' && ch<='\u20FF')){
- String ss=Integer.toHexString(ch);
- sb.append("\\u");
- for(int k=0;k<4-ss.length();k++){
- sb.append('0');
- }
- sb.append(ss.toUpperCase(Locale.ROOT));
- }
- else{
- sb.append(ch);
- }
- }
- }//for
- }
+ if (value instanceof Boolean)
+ {
+ out.write(value.toString());
+ return;
+ }
+
+ if ((value instanceof JSONStreamAware))
+ {
+ ((JSONStreamAware) value).writeJSONString(out);
+ return;
+ }
+
+ if ((value instanceof JSONAware))
+ {
+ out.write(((JSONAware) value).toJSONString());
+ return;
+ }
+
+ if (value instanceof Map)
+ {
+ JSONObject.writeJSONString((Map) value, out);
+ return;
+ }
+
+ if (value instanceof Collection)
+ {
+ JSONArray.writeJSONString((Collection) value, out);
+ return;
+ }
+
+ if (value instanceof byte[])
+ {
+ JSONArray.writeJSONString((byte[]) value, out);
+ return;
+ }
+
+ if (value instanceof short[])
+ {
+ JSONArray.writeJSONString((short[]) value, out);
+ return;
+ }
+
+ if (value instanceof int[])
+ {
+ JSONArray.writeJSONString((int[]) value, out);
+ return;
+ }
+
+ if (value instanceof long[])
+ {
+ JSONArray.writeJSONString((long[]) value, out);
+ return;
+ }
+
+ if (value instanceof float[])
+ {
+ JSONArray.writeJSONString((float[]) value, out);
+ return;
+ }
+
+ if (value instanceof double[])
+ {
+ JSONArray.writeJSONString((double[]) value, out);
+ return;
+ }
+
+ if (value instanceof boolean[])
+ {
+ JSONArray.writeJSONString((boolean[]) value, out);
+ return;
+ }
+
+ if (value instanceof char[])
+ {
+ JSONArray.writeJSONString((char[]) value, out);
+ return;
+ }
+
+ if (value instanceof Object[])
+ {
+ JSONArray.writeJSONString((Object[]) value, out);
+ return;
+ }
+
+ out.write(value.toString());
+ }
+
+ /**
+ * Convert an object to JSON text.
+ * <p>
+ * If this object is a Map or a List, and it's also a JSONAware, JSONAware
+ * will be considered firstly.
+ * <p>
+ * DO NOT call this method from toJSONString() of a class that implements both
+ * JSONAware and Map or List with "this" as the parameter, use
+ * JSONObject.toJSONString(Map) or JSONArray.toJSONString(List) instead.
+ *
+ * @see org.json.simple.JSONObject#toJSONString(Map)
+ * @see org.json.simple.JSONArray#toJSONString(List)
+ *
+ * @param value
+ * @return JSON text, or "null" if value is null or it's an NaN or an INF
+ * number.
+ */
+ public static String toJSONString(Object value)
+ {
+ final StringWriter writer = new StringWriter();
+
+ try
+ {
+ writeJSONString(value, writer);
+ return writer.toString();
+ } catch (IOException e)
+ {
+ // This should never happen for a StringWriter
+ throw new RuntimeException(e);
+ }
+ }
+
+ /**
+ * Escape quotes, \, /, \r, \n, \b, \f, \t and other control characters
+ * (U+0000 through U+001F).
+ *
+ * @param s
+ * @return
+ */
+ public static String escape(String s)
+ {
+ if (s == null)
+ return null;
+ StringBuffer sb = new StringBuffer();
+ escape(s, sb);
+ return sb.toString();
+ }
+
+ /**
+ * @param s
+ * - Must not be null.
+ * @param sb
+ */
+ static void escape(String s, StringBuffer sb)
+ {
+ final int len = s.length();
+ for (int i = 0; i < len; i++)
+ {
+ char ch = s.charAt(i);
+ switch (ch)
+ {
+ case '"':
+ sb.append("\\\"");
+ break;
+ case '\\':
+ sb.append("\\\\");
+ break;
+ case '\b':
+ sb.append("\\b");
+ break;
+ case '\f':
+ sb.append("\\f");
+ break;
+ case '\n':
+ sb.append("\\n");
+ break;
+ case '\r':
+ sb.append("\\r");
+ break;
+ case '\t':
+ sb.append("\\t");
+ break;
+ case '/':
+ sb.append("\\/");
+ break;
+ default:
+ // Reference: http://www.unicode.org/versions/Unicode5.1.0/
+ if ((ch >= '\u0000' && ch <= '\u001F')
+ || (ch >= '\u007F' && ch <= '\u009F')
+ || (ch >= '\u2000' && ch <= '\u20FF'))
+ {
+ String ss = Integer.toHexString(ch);
+ sb.append("\\u");
+ for (int k = 0; k < 4 - ss.length(); k++)
+ {
+ sb.append('0');
+ }
+ sb.append(ss.toUpperCase(Locale.ROOT));
+ }
+ else
+ {
+ sb.append(ch);
+ }
+ }
+ } // for
+ }
}
git://source.jalview.org / jalview.git / blobdiff