--- /dev/null
+/*
+ * $Id: JSONValue.java,v 1.1 2006/04/15 14:37:04 platform Exp $
+ * Created on 2006-4-15
+ */
+package org.json.simple;
+
+import java.io.IOException;
+import java.io.Reader;
+import java.io.StringReader;
+import java.io.StringWriter;
+import java.io.Writer;
+import java.util.Collection;
+// import java.util.List;
+import java.util.Map;
+
+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 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(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());
+ }
+
+ /**
+ * 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());
+ }
+ else{
+ sb.append(ch);
+ }
+ }
+ }//for
+ }
+
+}
git://source.jalview.org / jalview.git / blobdiff