Added: lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONObject.java
URL: http://svn.apache.org/viewvc/lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONObject.java?rev=756035&view=auto
==============================================================================
--- lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONObject.java (added)
+++ lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONObject.java Thu Mar 19 14:47:37 2009
@@ -0,0 +1,1251 @@
+package org.json;
+
+/*
+Copyright (c) 2002 JSON.org
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import java.util.Collection;
+import java.lang.reflect.Field;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * A JSONObject is an unordered collection of name/value pairs. Its
+ * external form is a string wrapped in curly braces with colons between the
+ * names and values, and commas between the values and names. The internal form
+ * is an object having <code>get</code> and <code>opt</code> methods for
+ * accessing the values by name, and <code>put</code> methods for adding or
+ * replacing values by name. The values can be any of these types:
+ * <code>Boolean</code>, <code>JSONArray</code>, <code>JSONObject</code>,
+ * <code>Number</code>, <code>String</code>, or the <code>JSONObject.NULL</code>
+ * object. A JSONObject constructor can be used to convert an external form
+ * JSON text into an internal form whose values can be retrieved with the
+ * <code>get</code> and <code>opt</code> methods, or to convert values into a
+ * JSON text using the <code>put</code> and <code>toString</code> methods.
+ * A <code>get</code> method returns a value if one can be found, and throws an
+ * exception if one cannot be found. An <code>opt</code> method returns a
+ * default value instead of throwing an exception, and so is useful for
+ * obtaining optional values.
+ * <p>
+ * The generic <code>get()</code> and <code>opt()</code> methods return an
+ * object, which you can cast or query for type. There are also typed
+ * <code>get</code> and <code>opt</code> methods that do type checking and type
+ * coersion for you.
+ * <p>
+ * The <code>put</code> methods adds values to an object. For example, <pre>
+ * myString = new JSONObject().put("JSON", "Hello, World!").toString();</pre>
+ * produces the string <code>{"JSON": "Hello, World"}</code>.
+ * <p>
+ * The texts produced by the <code>toString</code> methods strictly conform to
+ * the JSON sysntax rules.
+ * The constructors are more forgiving in the texts they will accept:
+ * <ul>
+ * <li>An extra <code>,</code> <small>(comma)</small> may appear just
+ * before the closing brace.</li>
+ * <li>Strings may be quoted with <code>'</code> <small>(single
+ * quote)</small>.</li>
+ * <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>null</code>.</li>
+ * <li>Keys can be followed by <code>=</code> or <code>=></code> as well as
+ * by <code>:</code>.</li>
+ * <li>Values can be followed by <code>;</code> <small>(semicolon)</small> as
+ * well as by <code>,</code> <small>(comma)</small>.</li>
+ * <li>Numbers may have the <code>0-</code> <small>(octal)</small> or
+ * <code>0x-</code> <small>(hex)</small> prefix.</li>
+ * <li>Comments written in the slashshlash, slashstar, and hash conventions
+ * will be ignored.</li>
+ * </ul>
+ * @author JSON.org
+ * @version 2
+ */
+public class JSONObject {
+
+ /**
+ * JSONObject.NULL is equivalent to the value that JavaScript calls null,
+ * whilst Java's null is equivalent to the value that JavaScript calls
+ * undefined.
+ */
+ private static final class Null {
+
+ /**
+ * There is only intended to be a single instance of the NULL object,
+ * so the clone method returns itself.
+ * @return NULL.
+ */
+ protected final Object clone() {
+ return this;
+ }
+
+
+ /**
+ * A Null object is equal to the null value and to itself.
+ * @param object An object to test for nullness.
+ * @return true if the object parameter is the JSONObject.NULL object
+ * or null.
+ */
+ public boolean equals(Object object) {
+ return object == null || object == this;
+ }
+
+
+ /**
+ * Get the "null" string value.
+ * @return The string "null".
+ */
+ public String toString() {
+ return "null";
+ }
+ }
+
+
+ /**
+ * The hash map where the JSONObject's properties are kept.
+ */
+ private HashMap myHashMap;
+
+
+ /**
+ * It is sometimes more convenient and less ambiguous to have a
+ * <code>NULL</code> object than to use Java's <code>null</code> value.
+ * <code>JSONObject.NULL.equals(null)</code> returns <code>true</code>.
+ * <code>JSONObject.NULL.toString()</code> returns <code>"null"</code>.
+ */
+ public static final Object NULL = new Null();
+
+
+ /**
+ * Construct an empty JSONObject.
+ */
+ public JSONObject() {
+ this.myHashMap = new HashMap();
+ }
+
+
+ /**
+ * Construct a JSONObject from a subset of another JSONObject.
+ * An array of strings is used to identify the keys that should be copied.
+ * Missing keys are ignored.
+ * @param jo A JSONObject.
+ * @param sa An array of strings.
+ * @exception JSONException If a value is a non-finite number.
+ */
+ public JSONObject(JSONObject jo, String[] sa) throws JSONException {
+ this();
+ for (int i = 0; i < sa.length; i += 1) {
+ putOpt(sa[i], jo.opt(sa[i]));
+ }
+ }
+
+
+ /**
+ * Construct a JSONObject from a JSONTokener.
+ * @param x A JSONTokener object containing the source string.
+ * @throws JSONException If there is a syntax error in the source string.
+ */
+ public JSONObject(JSONTokener x) throws JSONException {
+ this();
+ char c;
+ String key;
+
+ if (x.nextClean() != '{') {
+ throw x.syntaxError("A JSONObject text must begin with '{'");
+ }
+ for (;;) {
+ c = x.nextClean();
+ switch (c) {
+ case 0:
+ throw x.syntaxError("A JSONObject text must end with '}'");
+ case '}':
+ return;
+ default:
+ x.back();
+ key = x.nextValue().toString();
+ }
+
+ /*
+ * The key is followed by ':'. We will also tolerate '=' or '=>'.
+ */
+
+ c = x.nextClean();
+ if (c == '=') {
+ if (x.next() != '>') {
+ x.back();
+ }
+ } else if (c != ':') {
+ throw x.syntaxError("Expected a ':' after a key");
+ }
+ this.myHashMap.put(key, x.nextValue());
+
+ /*
+ * Pairs are separated by ','. We will also tolerate ';'.
+ */
+
+ switch (x.nextClean()) {
+ case ';':
+ case ',':
+ if (x.nextClean() == '}') {
+ return;
+ }
+ x.back();
+ break;
+ case '}':
+ return;
+ default:
+ throw x.syntaxError("Expected a ',' or '}'");
+ }
+ }
+ }
+
+
+ /**
+ * Construct a JSONObject from a Map.
+ * @param map A map object that can be used to initialize the contents of
+ * the JSONObject.
+ */
+ public JSONObject(Map map) {
+ this.myHashMap = (map == null) ?
+ new HashMap() :
+ new HashMap(map);
+ }
+
+
+ /**
+ * Construct a JSONObject from an Object, using reflection to find the
+ * public members. The resulting JSONObject's keys will be the strings
+ * from the names array, and the values will be the field values associated
+ * with those keys in the object. If a key is not found or not visible,
+ * then it will not be copied into the new JSONObject.
+ * @param object An object that has fields that should be used to make a
+ * JSONObject.
+ * @param names An array of strings, the names of the fields to be used
+ * from the object.
+ */
+ public JSONObject(Object object, String names[]) {
+ this();
+ Class c = object.getClass();
+ for (int i = 0; i < names.length; i += 1) {
+ try {
+ String name = names[i];
+ Field field = c.getField(name);
+ Object value = field.get(object);
+ this.put(name, value);
+ } catch (Exception e) {
+ /* forget about it */
+ }
+ }
+ }
+
+
+ /**
+ * Construct a JSONObject from a string.
+ * This is the most commonly used JSONObject constructor.
+ * @param string A string beginning
+ * with <code>{</code> <small>(left brace)</small> and ending
+ * with <code>}</code> <small>(right brace)</small>.
+ * @exception JSONException If there is a syntax error in the source string.
+ */
+ public JSONObject(String string) throws JSONException {
+ this(new JSONTokener(string));
+ }
+
+
+ /**
+ * Accumulate values under a key. It is similar to the put method except
+ * that if there is already an object stored under the key then a
+ * JSONArray is stored under the key to hold all of the accumulated values.
+ * If there is already a JSONArray, then the new value is appended to it.
+ * In contrast, the put method replaces the previous value.
+ * @param key A key string.
+ * @param value An object to be accumulated under the key.
+ * @return this.
+ * @throws JSONException If the value is an invalid number
+ * or if the key is null.
+ */
+ public JSONObject accumulate(String key, Object value)
+ throws JSONException {
+ testValidity(value);
+ Object o = opt(key);
+ if (o == null) {
+ put(key, value);
+ } else if (o instanceof JSONArray) {
+ ((JSONArray)o).put(value);
+ } else {
+ put(key, new JSONArray().put(o).put(value));
+ }
+ return this;
+ }
+
+
+ /**
+ * Append values to the array under a key. If the key does not exist in the
+ * JSONObject, then the key is put in the JSONObject with its value being a
+ * JSONArray containing the value parameter. If the key was already
+ * associated with a JSONArray, then the value parameter is appended to it.
+ * @param key A key string.
+ * @param value An object to be accumulated under the key.
+ * @return this.
+ * @throws JSONException If the key is null or if the current value
+ * associated with the key is not a JSONArray.
+ */
+ public JSONObject append(String key, Object value)
+ throws JSONException {
+ testValidity(value);
+ Object o = opt(key);
+ if (o == null) {
+ put(key, new JSONArray().put(value));
+ } else if (o instanceof JSONArray) {
+ throw new JSONException("JSONObject[" + key +
+ "] is not a JSONArray.");
+ } else {
+ put(key, new JSONArray().put(o).put(value));
+ }
+ return this;
+ }
+
+
+ /**
+ * Produce a string from a double. The string "null" will be returned if
+ * the number is not finite.
+ * @param d A double.
+ * @return A String.
+ */
+ static public String doubleToString(double d) {
+ if (Double.isInfinite(d) || Double.isNaN(d)) {
+ return "null";
+ }
+
+// Shave off trailing zeros and decimal point, if possible.
+
+ String s = Double.toString(d);
+ if (s.indexOf('.') > 0 && s.indexOf('e') < 0 && s.indexOf('E') < 0) {
+ while (s.endsWith("0")) {
+ s = s.substring(0, s.length() - 1);
+ }
+ if (s.endsWith(".")) {
+ s = s.substring(0, s.length() - 1);
+ }
+ }
+ return s;
+ }
+
+
+ /**
+ * Get the value object associated with a key.
+ *
+ * @param key A key string.
+ * @return The object associated with the key.
+ * @throws JSONException if the key is not found.
+ */
+ public Object get(String key) throws JSONException {
+ Object o = opt(key);
+ if (o == null) {
+ throw new JSONException("JSONObject[" + quote(key) +
+ "] not found.");
+ }
+ return o;
+ }
+
+
+ /**
+ * Get the boolean value associated with a key.
+ *
+ * @param key A key string.
+ * @return The truth.
+ * @throws JSONException
+ * if the value is not a Boolean or the String "true" or "false".
+ */
+ public boolean getBoolean(String key) throws JSONException {
+ Object o = get(key);
+ if (o.equals(Boolean.FALSE) ||
+ (o instanceof String &&
+ ((String)o).equalsIgnoreCase("false"))) {
+ return false;
+ } else if (o.equals(Boolean.TRUE) ||
+ (o instanceof String &&
+ ((String)o).equalsIgnoreCase("true"))) {
+ return true;
+ }
+ throw new JSONException("JSONObject[" + quote(key) +
+ "] is not a Boolean.");
+ }
+
+
+ /**
+ * Get the double value associated with a key.
+ * @param key A key string.
+ * @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 double getDouble(String key) throws JSONException {
+ Object o = get(key);
+ try {
+ return o instanceof Number ?
+ ((Number)o).doubleValue() :
+ Double.valueOf((String)o).doubleValue();
+ } catch (Exception e) {
+ throw new JSONException("JSONObject[" + quote(key) +
+ "] is not a number.");
+ }
+ }
+
+
+ /**
+ * Get the int value associated with a key. If the number value is too
+ * large for an int, it will be clipped.
+ *
+ * @param key A key string.
+ * @return The integer value.
+ * @throws JSONException if the key is not found or if the value cannot
+ * be converted to an integer.
+ */
+ public int getInt(String key) throws JSONException {
+ Object o = get(key);
+ return o instanceof Number ?
+ ((Number)o).intValue() : (int)getDouble(key);
+ }
+
+
+ /**
+ * Get the JSONArray value associated with a key.
+ *
+ * @param key A key string.
+ * @return A JSONArray which is the value.
+ * @throws JSONException if the key is not found or
+ * if the value is not a JSONArray.
+ */
+ public JSONArray getJSONArray(String key) throws JSONException {
+ Object o = get(key);
+ if (o instanceof JSONArray) {
+ return (JSONArray)o;
+ }
+ throw new JSONException("JSONObject[" + quote(key) +
+ "] is not a JSONArray.");
+ }
+
+
+ /**
+ * Get the JSONObject value associated with a key.
+ *
+ * @param key A key string.
+ * @return A JSONObject which is the value.
+ * @throws JSONException if the key is not found or
+ * if the value is not a JSONObject.
+ */
+ public JSONObject getJSONObject(String key) throws JSONException {
+ Object o = get(key);
+ if (o instanceof JSONObject) {
+ return (JSONObject)o;
+ }
+ throw new JSONException("JSONObject[" + quote(key) +
+ "] is not a JSONObject.");
+ }
+
+
+ /**
+ * Get the long value associated with a key. If the number value is too
+ * long for a long, it will be clipped.
+ *
+ * @param key A key string.
+ * @return The long value.
+ * @throws JSONException if the key is not found or if the value cannot
+ * be converted to a long.
+ */
+ public long getLong(String key) throws JSONException {
+ Object o = get(key);
+ return o instanceof Number ?
+ ((Number)o).longValue() : (long)getDouble(key);
+ }
+
+
+ /**
+ * Get the string associated with a key.
+ *
+ * @param key A key string.
+ * @return A string which is the value.
+ * @throws JSONException if the key is not found.
+ */
+ public String getString(String key) throws JSONException {
+ return get(key).toString();
+ }
+
+
+ /**
+ * Determine if the JSONObject contains a specific key.
+ * @param key A key string.
+ * @return true if the key exists in the JSONObject.
+ */
+ public boolean has(String key) {
+ return this.myHashMap.containsKey(key);
+ }
+
+
+ /**
+ * Determine if the value associated with the key is null or if there is
+ * no value.
+ * @param key A key string.
+ * @return true if there is no value associated with the key or if
+ * the value is the JSONObject.NULL object.
+ */
+ public boolean isNull(String key) {
+ return JSONObject.NULL.equals(opt(key));
+ }
+
+
+ /**
+ * Get an enumeration of the keys of the JSONObject.
+ *
+ * @return An iterator of the keys.
+ */
+ public Iterator keys() {
+ return this.myHashMap.keySet().iterator();
+ }
+
+
+ /**
+ * Get the number of keys stored in the JSONObject.
+ *
+ * @return The number of keys in the JSONObject.
+ */
+ public int length() {
+ return this.myHashMap.size();
+ }
+
+
+ /**
+ * Produce a JSONArray containing the names of the elements of this
+ * JSONObject.
+ * @return A JSONArray containing the key strings, or null if the JSONObject
+ * is empty.
+ */
+ public JSONArray names() {
+ JSONArray ja = new JSONArray();
+ Iterator keys = keys();
+ while (keys.hasNext()) {
+ ja.put(keys.next());
+ }
+ return ja.length() == 0 ? null : ja;
+ }
+
+ /**
+ * Produce a string from a Number.
+ * @param n A Number
+ * @return A String.
+ * @throws JSONException If n is a non-finite number.
+ */
+ static public String numberToString(Number n)
+ throws JSONException {
+ if (n == null) {
+ throw new JSONException("Null pointer");
+ }
+ testValidity(n);
+
+// Shave off trailing zeros and decimal point, if possible.
+
+ String s = n.toString();
+ if (s.indexOf('.') > 0 && s.indexOf('e') < 0 && s.indexOf('E') < 0) {
+ while (s.endsWith("0")) {
+ s = s.substring(0, s.length() - 1);
+ }
+ if (s.endsWith(".")) {
+ s = s.substring(0, s.length() - 1);
+ }
+ }
+ return s;
+ }
+
+
+ /**
+ * Get an optional value associated with a key.
+ * @param key A key string.
+ * @return An object which is the value, or null if there is no value.
+ */
+ public Object opt(String key) {
+ return key == null ? null : this.myHashMap.get(key);
+ }
+
+
+ /**
+ * Get an optional boolean associated with a key.
+ * It returns false if there is no such key, or if the value is not
+ * Boolean.TRUE or the String "true".
+ *
+ * @param key A key string.
+ * @return The truth.
+ */
+ public boolean optBoolean(String key) {
+ return optBoolean(key, false);
+ }
+
+
+ /**
+ * Get an optional boolean associated with a key.
+ * It returns the defaultValue if there is no such key, or if it is not
+ * a Boolean or the String "true" or "false" (case insensitive).
+ *
+ * @param key A key string.
+ * @param defaultValue The default.
+ * @return The truth.
+ */
+ public boolean optBoolean(String key, boolean defaultValue) {
+ try {
+ return getBoolean(key);
+ } catch (Exception e) {
+ return defaultValue;
+ }
+ }
+
+
+ /**
+ * Put a key/value pair in the JSONObject, where the value will be a
+ * JSONArray which is produced from a Collection.
+ * @param key A key string.
+ * @param value A Collection value.
+ * @return this.
+ * @throws JSONException
+ */
+ public JSONObject put(String key, Collection value) throws JSONException {
+ put(key, new JSONArray(value));
+ return this;
+ }
+
+
+ /**
+ * Get an optional double associated with a key,
+ * or NaN if there is no such key or if its value is not a number.
+ * If the value is a string, an attempt will be made to evaluate it as
+ * a number.
+ *
+ * @param key A string which is the key.
+ * @return An object which is the value.
+ */
+ public double optDouble(String key) {
+ return optDouble(key, Double.NaN);
+ }
+
+
+ /**
+ * Get an optional double associated with a key, or the
+ * defaultValue if there is no such key or if its value is not a number.
+ * If the value is a string, an attempt will be made to evaluate it as
+ * a number.
+ *
+ * @param key A key string.
+ * @param defaultValue The default.
+ * @return An object which is the value.
+ */
+ public double optDouble(String key, double defaultValue) {
+ try {
+ Object o = opt(key);
+ return o instanceof Number ? ((Number)o).doubleValue() :
+ new Double((String)o).doubleValue();
+ } catch (Exception e) {
+ return defaultValue;
+ }
+ }
+
+
+ /**
+ * Get an optional int value associated with a key,
+ * or zero 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.
+ *
+ * @param key A key string.
+ * @return An object which is the value.
+ */
+ public int optInt(String key) {
+ return optInt(key, 0);
+ }
+
+
+ /**
+ * Get an optional int 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.
+ *
+ * @param key A key string.
+ * @param defaultValue The default.
+ * @return An object which is the value.
+ */
+ public int optInt(String key, int defaultValue) {
+ try {
+ return getInt(key);
+ } catch (Exception e) {
+ return defaultValue;
+ }
+ }
+
+
+ /**
+ * Get an optional JSONArray associated with a key.
+ * It returns null if there is no such key, or if its value is not a
+ * JSONArray.
+ *
+ * @param key A key string.
+ * @return A JSONArray which is the value.
+ */
+ public JSONArray optJSONArray(String key) {
+ Object o = opt(key);
+ return o instanceof JSONArray ? (JSONArray)o : null;
+ }
+
+
+ /**
+ * Get an optional JSONObject associated with a key.
+ * It returns null if there is no such key, or if its value is not a
+ * JSONObject.
+ *
+ * @param key A key string.
+ * @return A JSONObject which is the value.
+ */
+ public JSONObject optJSONObject(String key) {
+ Object o = opt(key);
+ return o instanceof JSONObject ? (JSONObject)o : null;
+ }
+
+
+ /**
+ * Get an optional long value associated with a key,
+ * or zero 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.
+ *
+ * @param key A key string.
+ * @return An object which is the value.
+ */
+ public long optLong(String key) {
+ return optLong(key, 0);
+ }
+
+
+ /**
+ * Get an optional long 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.
+ *
+ * @param key A key string.
+ * @param defaultValue The default.
+ * @return An object which is the value.
+ */
+ public long optLong(String key, long defaultValue) {
+ try {
+ return getLong(key);
+ } catch (Exception e) {
+ return defaultValue;
+ }
+ }
+
+
+ /**
+ * Get an optional string associated with a key.
+ * It returns an empty string if there is no such key. If the value is not
+ * a string and is not null, then it is coverted to a string.
+ *
+ * @param key A key string.
+ * @return A string which is the value.
+ */
+ public String optString(String key) {
+ return optString(key, "");
+ }
+
+
+ /**
+ * Get an optional string associated with a key.
+ * It returns the defaultValue if there is no such key.
+ *
+ * @param key A key string.
+ * @param defaultValue The default.
+ * @return A string which is the value.
+ */
+ public String optString(String key, String defaultValue) {
+ Object o = opt(key);
+ return o != null ? o.toString() : defaultValue;
+ }
+
+
+ /**
+ * Put a key/boolean pair in the JSONObject.
+ *
+ * @param key A key string.
+ * @param value A boolean which is the value.
+ * @return this.
+ * @throws JSONException If the key is null.
+ */
+ public JSONObject put(String key, boolean value) throws JSONException {
+ put(key, value ? Boolean.TRUE : Boolean.FALSE);
+ return this;
+ }
+
+
+ /**
+ * Put a key/double pair in the JSONObject.
+ *
+ * @param key A key string.
+ * @param value A double which is the value.
+ * @return this.
+ * @throws JSONException If the key is null or if the number is invalid.
+ */
+ public JSONObject put(String key, double value) throws JSONException {
+ put(key, new Double(value));
+ return this;
+ }
+
+
+ /**
+ * Put a key/int pair in the JSONObject.
+ *
+ * @param key A key string.
+ * @param value An int which is the value.
+ * @return this.
+ * @throws JSONException If the key is null.
+ */
+ public JSONObject put(String key, int value) throws JSONException {
+ put(key, new Integer(value));
+ return this;
+ }
+
+
+ /**
+ * Put a key/long pair in the JSONObject.
+ *
+ * @param key A key string.
+ * @param value A long which is the value.
+ * @return this.
+ * @throws JSONException If the key is null.
+ */
+ public JSONObject put(String key, long value) throws JSONException {
+ put(key, new Long(value));
+ return this;
+ }
+
+
+ /**
+ * Put a key/value pair in the JSONObject, where the value will be a
+ * JSONObject which is produced from a Map.
+ * @param key A key string.
+ * @param value A Map value.
+ * @return this.
+ * @throws JSONException
+ */
+ public JSONObject put(String key, Map value) throws JSONException {
+ put(key, new JSONObject(value));
+ return this;
+ }
+
+
+ /**
+ * Put a key/value pair in the JSONObject. If the value is null,
+ * then the key will be removed from the JSONObject if it is present.
+ * @param key A key string.
+ * @param value An object which is the value. It should be of one of these
+ * types: Boolean, Double, Integer, JSONArray, JSONObject, Long, String,
+ * or the JSONObject.NULL object.
+ * @return this.
+ * @throws JSONException If the value is non-finite number
+ * or if the key is null.
+ */
+ public JSONObject put(String key, Object value) throws JSONException {
+ if (key == null) {
+ throw new JSONException("Null key.");
+ }
+ if (value != null) {
+ testValidity(value);
+ this.myHashMap.put(key, value);
+ } else {
+ remove(key);
+ }
+ return this;
+ }
+
+
+ /**
+ * Put a key/value pair in the JSONObject, but only if the
+ * key and the value are both non-null.
+ * @param key A key string.
+ * @param value An object which is the value. It should be of one of these
+ * types: Boolean, Double, Integer, JSONArray, JSONObject, Long, String,
+ * or the JSONObject.NULL object.
+ * @return this.
+ * @throws JSONException If the value is a non-finite number.
+ */
+ public JSONObject putOpt(String key, Object value) throws JSONException {
+ if (key != null && value != null) {
+ put(key, value);
+ }
+ return this;
+ }
+
+
+ /**
+ * Produce a string in double quotes with backslash sequences in all the
+ * right places. A backslash will be inserted within </, allowing JSON
+ * text to be delivered in HTML. In JSON text, a string cannot contain a
+ * control character or an unescaped quote or backslash.
+ * @param string A String
+ * @return A String correctly formatted for insertion in a JSON text.
+ */
+ public static String quote(String string) {
+ if (string == null || string.length() == 0) {
+ return "\"\"";
+ }
+
+ char b;
+ char c = 0;
+ int i;
+ int len = string.length();
+ StringBuffer sb = new StringBuffer(len + 4);
+ String t;
+
+ sb.append('"');
+ for (i = 0; i < len; i += 1) {
+ b = c;
+ c = string.charAt(i);
+ switch (c) {
+ case '\\':
+ case '"':
+ sb.append('\\');
+ sb.append(c);
+ break;
+ case '/':
+ if (b == '<') {
+ sb.append('\\');
+ }
+ sb.append(c);
+ break;
+ case '\b':
+ sb.append("\\b");
+ break;
+ case '\t':
+ sb.append("\\t");
+ break;
+ case '\n':
+ sb.append("\\n");
+ break;
+ case '\f':
+ sb.append("\\f");
+ break;
+ case '\r':
+ sb.append("\\r");
+ break;
+ default:
+ if (c < ' ') {
+ t = "000" + Integer.toHexString(c);
+ sb.append("\\u" + t.substring(t.length() - 4));
+ } else {
+ sb.append(c);
+ }
+ }
+ }
+ sb.append('"');
+ return sb.toString();
+ }
+
+ /**
+ * Remove a name and its value, if present.
+ * @param key The name to be removed.
+ * @return The value that was associated with the name,
+ * or null if there was no value.
+ */
+ public Object remove(String key) {
+ return this.myHashMap.remove(key);
+ }
+
+
+ /**
+ * Throw an exception if the object is an NaN or infinite number.
+ * @param o The object to test.
+ * @throws JSONException If o is a non-finite number.
+ */
+ static void testValidity(Object o) throws JSONException {
+ if (o != null) {
+ if (o instanceof Double) {
+ if (((Double)o).isInfinite() || ((Double)o).isNaN()) {
+ throw new JSONException(
+ "JSON does not allow non-finite numbers");
+ }
+ } else if (o instanceof Float) {
+ if (((Float)o).isInfinite() || ((Float)o).isNaN()) {
+ throw new JSONException(
+ "JSON does not allow non-finite numbers.");
+ }
+ }
+ }
+ }
+
+
+ /**
+ * Produce a JSONArray containing the values of the members of this
+ * JSONObject.
+ * @param names A JSONArray containing a list of key strings. This
+ * determines the sequence of the values in the result.
+ * @return A JSONArray of values.
+ * @throws JSONException If any of the values are non-finite numbers.
+ */
+ public JSONArray toJSONArray(JSONArray names) throws JSONException {
+ if (names == null || names.length() == 0) {
+ return null;
+ }
+ JSONArray ja = new JSONArray();
+ for (int i = 0; i < names.length(); i += 1) {
+ ja.put(this.opt(names.getString(i)));
+ }
+ return ja;
+ }
+
+ /**
+ * Make a JSON text of this JSONObject. For compactness, no whitespace
+ * is added. If this would not result in a syntactically correct JSON text,
+ * then null will be returned instead.
+ * <p>
+ * Warning: This method assumes that the data structure is acyclical.
+ *
+ * @return a printable, displayable, portable, transmittable
+ * representation of the object, beginning
+ * with <code>{</code> <small>(left brace)</small> and ending
+ * with <code>}</code> <small>(right brace)</small>.
+ */
+ public String toString() {
+ try {
+ Iterator keys = keys();
+ StringBuffer sb = new StringBuffer("{");
+
+ while (keys.hasNext()) {
+ if (sb.length() > 1) {
+ sb.append(',');
+ }
+ Object o = keys.next();
+ sb.append(quote(o.toString()));
+ sb.append(':');
+ sb.append(valueToString(this.myHashMap.get(o)));
+ }
+ sb.append('}');
+ return sb.toString();
+ } catch (Exception e) {
+ return null;
+ }
+ }
+
+
+ /**
+ * Make a prettyprinted JSON text of this JSONObject.
+ * <p>
+ * Warning: This method assumes that the data structure is acyclical.
+ * @param indentFactor The number of spaces to add to each level of
+ * indentation.
+ * @return a printable, displayable, portable, transmittable
+ * representation of the object, beginning
+ * with <code>{</code> <small>(left brace)</small> and ending
+ * with <code>}</code> <small>(right brace)</small>.
+ * @throws JSONException If the object contains an invalid number.
+ */
+ public String toString(int indentFactor) throws JSONException {
+ return toString(indentFactor, 0);
+ }
+
+
+ /**
+ * Make a prettyprinted JSON text of this JSONObject.
+ * <p>
+ * Warning: This method assumes that the data structure is acyclical.
+ * @param indentFactor The number of spaces to add to each level of
+ * indentation.
+ * @param indent The indentation of the top level.
+ * @return a printable, displayable, transmittable
+ * representation of the object, beginning
+ * with <code>{</code> <small>(left brace)</small> and ending
+ * with <code>}</code> <small>(right brace)</small>.
+ * @throws JSONException If the object contains an invalid number.
+ */
+ String toString(int indentFactor, int indent) throws JSONException {
+ int i;
+ int n = length();
+ if (n == 0) {
+ return "{}";
+ }
+ Iterator keys = keys();
+ StringBuffer sb = new StringBuffer("{");
+ int newindent = indent + indentFactor;
+ Object o;
+ if (n == 1) {
+ o = keys.next();
+ sb.append(quote(o.toString()));
+ sb.append(": ");
+ sb.append(valueToString(this.myHashMap.get(o), indentFactor,
+ indent));
+ } else {
+ while (keys.hasNext()) {
+ o = keys.next();
+ if (sb.length() > 1) {
+ sb.append(",\n");
+ } else {
+ sb.append('\n');
+ }
+ for (i = 0; i < newindent; i += 1) {
+ sb.append(' ');
+ }
+ sb.append(quote(o.toString()));
+ sb.append(": ");
+ sb.append(valueToString(this.myHashMap.get(o), indentFactor,
+ newindent));
+ }
+ if (sb.length() > 1) {
+ sb.append('\n');
+ for (i = 0; i < indent; i += 1) {
+ sb.append(' ');
+ }
+ }
+ }
+ sb.append('}');
+ return sb.toString();
+ }
+
+
+ /**
+ * Make a JSON text of an Object value. If the object has an
+ * value.toJSONString() method, then that method will be used to produce
+ * the JSON text. The method is required to produce a strictly
+ * conforming text. If the object does not contain a toJSONString
+ * method (which is the most common case), then a text will be
+ * produced by the rules.
+ * <p>
+ * Warning: This method assumes that the data structure is acyclical.
+ * @param value The value to be serialized.
+ * @return a printable, displayable, transmittable
+ * representation of the object, beginning
+ * with <code>{</code> <small>(left brace)</small> and ending
+ * with <code>}</code> <small>(right brace)</small>.
+ * @throws JSONException If the value is or contains an invalid number.
+ */
+ static String valueToString(Object value) throws JSONException {
+ if (value == null || value.equals(null)) {
+ return "null";
+ }
+ if (value instanceof JSONString) {
+ Object o;
+ try {
+ o = ((JSONString)value).toJSONString();
+ } catch (Exception e) {
+ throw new JSONException(e);
+ }
+ if (o instanceof String) {
+ return (String)o;
+ }
+ throw new JSONException("Bad value from toJSONString: " + o);
+ }
+ if (value instanceof Number) {
+ return numberToString((Number) value);
+ }
+ if (value instanceof Boolean || value instanceof JSONObject ||
+ value instanceof JSONArray) {
+ return value.toString();
+ }
+ return quote(value.toString());
+ }
+
+
+ /**
+ * Make a prettyprinted JSON text of an object value.
+ * <p>
+ * Warning: This method assumes that the data structure is acyclical.
+ * @param value The value to be serialized.
+ * @param indentFactor The number of spaces to add to each level of
+ * indentation.
+ * @param indent The indentation of the top level.
+ * @return a printable, displayable, transmittable
+ * representation of the object, beginning
+ * with <code>{</code> <small>(left brace)</small> and ending
+ * with <code>}</code> <small>(right brace)</small>.
+ * @throws JSONException If the object contains an invalid number.
+ */
+ static String valueToString(Object value, int indentFactor, int indent)
+ throws JSONException {
+ if (value == null || value.equals(null)) {
+ return "null";
+ }
+ try {
+ if (value instanceof JSONString) {
+ Object o = ((JSONString)value).toJSONString();
+ if (o instanceof String) {
+ return (String)o;
+ }
+ }
+ } catch (Exception e) {
+ /* forget about it */
+ }
+ if (value instanceof Number) {
+ return numberToString((Number) value);
+ }
+ if (value instanceof Boolean) {
+ return value.toString();
+ }
+ if (value instanceof JSONObject) {
+ return ((JSONObject)value).toString(indentFactor, indent);
+ }
+ if (value instanceof JSONArray) {
+ return ((JSONArray)value).toString(indentFactor, indent);
+ }
+ return quote(value.toString());
+ }
+
+
+ /**
+ * Write the contents of the JSONObject as JSON text to a writer.
+ * For compactness, no whitespace is added.
+ * <p>
+ * Warning: This method assumes that the data structure is acyclical.
+ *
+ * @return The writer.
+ * @throws JSONException
+ */
+ public Writer write(Writer writer) throws JSONException {
+ try {
+ boolean b = false;
+ Iterator keys = keys();
+ writer.write('{');
+
+ while (keys.hasNext()) {
+ if (b) {
+ writer.write(',');
+ }
+ Object k = keys.next();
+ writer.write(quote(k.toString()));
+ writer.write(':');
+ Object v = this.myHashMap.get(k);
+ if (v instanceof JSONObject) {
+ ((JSONObject)v).write(writer);
+ } else if (v instanceof JSONArray) {
+ ((JSONArray)v).write(writer);
+ } else {
+ writer.write(valueToString(v));
+ }
+ b = true;
+ }
+ writer.write('}');
+ return writer;
+ } catch (IOException e) {
+ throw new JSONException(e);
+ }
+ }
+}
\ No newline at end of file
Added: lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONString.java
URL: http://svn.apache.org/viewvc/lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONString.java?rev=756035&view=auto
==============================================================================
--- lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONString.java (added)
+++ lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONString.java Thu Mar 19 14:47:37 2009
@@ -0,0 +1,18 @@
+package org.json;
+/**
+ * The <code>JSONString</code> interface allows a <code>toJSONString()</code>
+ * method so that a class can change the behavior of
+ * <code>JSONObject.toString()</code>, <code>JSONArray.toString()</code>,
+ * and <code>JSONWriter.value(</code>Object<code>)</code>. The
+ * <code>toJSONString</code> method will be used instead of the default behavior
+ * of using the Object's <code>toString()</code> method and quoting the result.
+ */
+public interface JSONString {
+ /**
+ * The <code>toJSONString</code> method allows a class to produce its own JSON
+ * serialization.
+ *
+ * @return A strictly syntactically correct JSON text.
+ */
+ public String toJSONString();
+}
Added: lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONStringer.java
URL: http://svn.apache.org/viewvc/lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONStringer.java?rev=756035&view=auto
==============================================================================
--- lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONStringer.java (added)
+++ lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONStringer.java Thu Mar 19 14:47:37 2009
@@ -0,0 +1,70 @@
+package org.json;
+
+/*
+Copyright (c) 2002 JSON.org
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import java.io.StringWriter;
+
+/**
+ * JSONStringer provides a quick and convenient way of producing JSON text.
+ * The texts produced strictly conform to JSON syntax rules. No whitespace is
+ * added, so the results are ready for transmission or storage. Each instance of
+ * JSONStringer can produce one JSON text.
+ * <p>
+ * A JSONStringer instance provides a <code>value</code> method for appending
+ * values to the
+ * text, and a <code>key</code>
+ * method for adding keys before values in objects. There are <code>array</code>
+ * and <code>endArray</code> methods that make and bound array values, and
+ * <code>object</code> and <code>endObject</code> methods which make and bound
+ * object values. All of these methods return the JSONWriter instance,
+ * permitting cascade style. For example, <pre>
+ * myString = new JSONStringer()
+ * .object()
+ * .key("JSON")
+ * .value("Hello, World!")
+ * .endObject()
+ * .toString();</pre> which produces the string <pre>
+ * {"JSON":"Hello, World!"}</pre>
+ * <p>
+ * The first method called must be <code>array</code> or <code>object</code>.
+ * There are no methods for adding commas or colons. JSONStringer adds them for
+ * you. Objects and arrays can be nested up to 20 levels deep.
+ * <p>
+ * This can sometimes be easier than using a JSONObject to build a string.
+ * @author JSON.org
+ * @version 2
+ */
+public class JSONStringer extends JSONWriter {
+ /**
+ * Make a fresh JSONStringer. It can be used to build one JSON text.
+ */
+ public JSONStringer() {
+ super(new StringWriter());
+ }
+
+ /**
+ * Return the JSON text. This method is used to obtain the product of the
+ * JSONStringer instance. It will return <code>null</code> if there was a
+ * problem in the construction of the JSON text (such as the calls to
+ * <code>array</code> were not properly balanced with calls to
+ * <code>endArray</code>).
+ * @return The JSON text.
+ */
+ public String toString() {
+ return this.mode == 'd' ? this.writer.toString() : null;
+ }
+}
Added: lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONTokener.java
URL: http://svn.apache.org/viewvc/lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONTokener.java?rev=756035&view=auto
==============================================================================
--- lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONTokener.java (added)
+++ lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONTokener.java Thu Mar 19 14:47:37 2009
@@ -0,0 +1,452 @@
+package org.json;
+
+/*
+Copyright (c) 2002 JSON.org
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+/**
+ * A JSONTokener takes a source string and extracts characters and tokens from
+ * it. It is used by the JSONObject and JSONArray constructors to parse
+ * JSON source strings.
+ * @author JSON.org
+ * @version 2
+ */
+public class JSONTokener {
+
+ /**
+ * The index of the next character.
+ */
+ private int myIndex;
+
+
+ /**
+ * The source string being tokenized.
+ */
+ private String mySource;
+
+
+ /**
+ * Construct a JSONTokener from a string.
+ *
+ * @param s A source string.
+ */
+ public JSONTokener(String s) {
+ this.myIndex = 0;
+ this.mySource = s;
+ }
+
+
+ /**
+ * Back up one character. This provides a sort of lookahead capability,
+ * so that you can test for a digit or letter before attempting to parse
+ * the next number or identifier.
+ */
+ public void back() {
+ if (this.myIndex > 0) {
+ this.myIndex -= 1;
+ }
+ }
+
+
+
+ /**
+ * Get the hex value of a character (base16).
+ * @param c A character between '0' and '9' or between 'A' and 'F' or
+ * between 'a' and 'f'.
+ * @return An int between 0 and 15, or -1 if c was not a hex digit.
+ */
+ public static int dehexchar(char c) {
+ if (c >= '0' && c <= '9') {
+ return c - '0';
+ }
+ if (c >= 'A' && c <= 'F') {
+ return c - ('A' - 10);
+ }
+ if (c >= 'a' && c <= 'f') {
+ return c - ('a' - 10);
+ }
+ return -1;
+ }
+
+
+ /**
+ * Determine if the source string still contains characters that next()
+ * can consume.
+ * @return true if not yet at the end of the source.
+ */
+ public boolean more() {
+ return this.myIndex < this.mySource.length();
+ }
+
+
+ /**
+ * Get the next character in the source string.
+ *
+ * @return The next character, or 0 if past the end of the source string.
+ */
+ public char next() {
+ if (more()) {
+ char c = this.mySource.charAt(this.myIndex);
+ this.myIndex += 1;
+ return c;
+ }
+ return 0;
+ }
+
+
+ /**
+ * Consume the next character, and check that it matches a specified
+ * character.
+ * @param c The character to match.
+ * @return The character.
+ * @throws JSONException if the character does not match.
+ */
+ public char next(char c) throws JSONException {
+ char n = next();
+ if (n != c) {
+ throw syntaxError("Expected '" + c + "' and instead saw '" +
+ n + "'.");
+ }
+ return n;
+ }
+
+
+ /**
+ * Get the next n characters.
+ *
+ * @param n The number of characters to take.
+ * @return A string of n characters.
+ * @throws JSONException
+ * Substring bounds error if there are not
+ * n characters remaining in the source string.
+ */
+ public String next(int n) throws JSONException {
+ int i = this.myIndex;
+ int j = i + n;
+ if (j >= this.mySource.length()) {
+ throw syntaxError("Substring bounds error");
+ }
+ this.myIndex += n;
+ return this.mySource.substring(i, j);
+ }
+
+
+ /**
+ * Get the next char in the string, skipping whitespace
+ * and comments (slashslash, slashstar, and hash).
+ * @throws JSONException
+ * @return A character, or 0 if there are no more characters.
+ */
+ public char nextClean() throws JSONException {
+ for (;;) {
+ char c = next();
+ if (c == '/') {
+ switch (next()) {
+ case '/':
+ do {
+ c = next();
+ } while (c != '\n' && c != '\r' && c != 0);
+ break;
+ case '*':
+ for (;;) {
+ c = next();
+ if (c == 0) {
+ throw syntaxError("Unclosed comment.");
+ }
+ if (c == '*') {
+ if (next() == '/') {
+ break;
+ }
+ back();
+ }
+ }
+ break;
+ default:
+ back();
+ return '/';
+ }
+ } else if (c == '#') {
+ do {
+ c = next();
+ } while (c != '\n' && c != '\r' && c != 0);
+ } else if (c == 0 || c > ' ') {
+ return c;
+ }
+ }
+ }
+
+
+ /**
+ * Return the characters up to the next close quote character.
+ * Backslash processing is done. The formal JSON format does not
+ * allow strings in single quotes, but an implementation is allowed to
+ * accept them.
+ * @param quote The quoting character, either
+ * <code>"</code> <small>(double quote)</small> or
+ * <code>'</code> <small>(single quote)</small>.
+ * @return A String.
+ * @throws JSONException Unterminated string.
+ */
+ public String nextString(char quote) throws JSONException {
+ char c;
+ StringBuffer sb = new StringBuffer();
+ for (;;) {
+ c = next();
+ switch (c) {
+ case 0:
+ case '\n':
+ case '\r':
+ throw syntaxError("Unterminated string");
+ case '\\':
+ c = next();
+ switch (c) {
+ case 'b':
+ sb.append('\b');
+ break;
+ case 't':
+ sb.append('\t');
+ break;
+ case 'n':
+ sb.append('\n');
+ break;
+ case 'f':
+ sb.append('\f');
+ break;
+ case 'r':
+ sb.append('\r');
+ break;
+ case 'u':
+ sb.append((char)Integer.parseInt(next(4), 16));
+ break;
+ case 'x' :
+ sb.append((char) Integer.parseInt(next(2), 16));
+ break;
+ default:
+ sb.append(c);
+ }
+ break;
+ default:
+ if (c == quote) {
+ return sb.toString();
+ }
+ sb.append(c);
+ }
+ }
+ }
+
+
+ /**
+ * Get the text up but not including the specified character or the
+ * end of line, whichever comes first.
+ * @param d A delimiter character.
+ * @return A string.
+ */
+ public String nextTo(char d) {
+ StringBuffer sb = new StringBuffer();
+ for (;;) {
+ char c = next();
+ if (c == d || c == 0 || c == '\n' || c == '\r') {
+ if (c != 0) {
+ back();
+ }
+ return sb.toString().trim();
+ }
+ sb.append(c);
+ }
+ }
+
+
+ /**
+ * Get the text up but not including one of the specified delimeter
+ * characters or the end of line, whichever comes first.
+ * @param delimiters A set of delimiter characters.
+ * @return A string, trimmed.
+ */
+ public String nextTo(String delimiters) {
+ char c;
+ StringBuffer sb = new StringBuffer();
+ for (;;) {
+ c = next();
+ if (delimiters.indexOf(c) >= 0 || c == 0 ||
+ c == '\n' || c == '\r') {
+ if (c != 0) {
+ back();
+ }
+ return sb.toString().trim();
+ }
+ sb.append(c);
+ }
+ }
+
+
+ /**
+ * Get the next value. The value can be a Boolean, Double, Integer,
+ * JSONArray, JSONObject, Long, or String, or the JSONObject.NULL object.
+ * @throws JSONException If syntax error.
+ *
+ * @return An object.
+ */
+ public Object nextValue() throws JSONException {
+ char c = nextClean();
+ String s;
+
+ switch (c) {
+ case '"':
+ case '\'':
+ return nextString(c);
+ case '{':
+ back();
+ return new JSONObject(this);
+ case '[':
+ back();
+ return new JSONArray(this);
+ }
+
+ /*
+ * Handle unquoted text. This could be the values true, false, or
+ * null, or it can be a number. An implementation (such as this one)
+ * is allowed to also accept non-standard forms.
+ *
+ * Accumulate characters until we reach the end of the text or a
+ * formatting character.
+ */
+
+ StringBuffer sb = new StringBuffer();
+ char b = c;
+ while (c >= ' ' && ",:]}/\\\"[{;=#".indexOf(c) < 0) {
+ sb.append(c);
+ c = next();
+ }
+ back();
+
+ /*
+ * If it is true, false, or null, return the proper value.
+ */
+
+ s = sb.toString().trim();
+ if (s.equals("")) {
+ throw syntaxError("Missing value.");
+ }
+ if (s.equalsIgnoreCase("true")) {
+ return Boolean.TRUE;
+ }
+ if (s.equalsIgnoreCase("false")) {
+ return Boolean.FALSE;
+ }
+ if (s.equalsIgnoreCase("null")) {
+ return JSONObject.NULL;
+ }
+
+ /*
+ * If it might be a number, try converting it. We support the 0- and 0x-
+ * conventions. If a number cannot be produced, then the value will just
+ * be a string. Note that the 0-, 0x-, plus, and implied string
+ * conventions are non-standard. A JSON parser is free to accept
+ * non-JSON forms as long as it accepts all correct JSON forms.
+ */
+
+ if ((b >= '0' && b <= '9') || b == '.' || b == '-' || b == '+') {
+ if (b == '0') {
+ if (s.length() > 2 &&
+ (s.charAt(1) == 'x' || s.charAt(1) == 'X')) {
+ try {
+ return new Integer(Integer.parseInt(s.substring(2),
+ 16));
+ } catch (Exception e) {
+ /* Ignore the error */
+ }
+ } else {
+ try {
+ return new Integer(Integer.parseInt(s, 8));
+ } catch (Exception e) {
+ /* Ignore the error */
+ }
+ }
+ }
+ try {
+ return new Integer(s);
+ } catch (Exception e) {
+ try {
+ return new Long(s);
+ } catch (Exception f) {
+ try {
+ return new Double(s);
+ } catch (Exception g) {
+ return s;
+ }
+ }
+ }
+ }
+ return s;
+ }
+
+
+ /**
+ * Skip characters until the next character is the requested character.
+ * If the requested character is not found, no characters are skipped.
+ * @param to A character to skip to.
+ * @return The requested character, or zero if the requested character
+ * is not found.
+ */
+ public char skipTo(char to) {
+ char c;
+ int index = this.myIndex;
+ do {
+ c = next();
+ if (c == 0) {
+ this.myIndex = index;
+ return c;
+ }
+ } while (c != to);
+ back();
+ return c;
+ }
+
+
+ /**
+ * Skip characters until past the requested string.
+ * If it is not found, we are left at the end of the source.
+ * @param to A string to skip past.
+ */
+ public void skipPast(String to) {
+ this.myIndex = this.mySource.indexOf(to, this.myIndex);
+ if (this.myIndex < 0) {
+ this.myIndex = this.mySource.length();
+ } else {
+ this.myIndex += to.length();
+ }
+ }
+
+
+ /**
+ * Make a JSONException to signal a syntax error.
+ *
+ * @param message The error message.
+ * @return A JSONException object, suitable for throwing
+ */
+ public JSONException syntaxError(String message) {
+ return new JSONException(message + toString());
+ }
+
+
+ /**
+ * Make a printable string of this JSONTokener.
+ *
+ * @return " at character [this.myIndex] of [this.mySource]"
+ */
+ public String toString() {
+ return " at character " + this.myIndex + " of " + this.mySource;
+ }
+}
\ No newline at end of file
Added: lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONWriter.java
URL: http://svn.apache.org/viewvc/lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONWriter.java?rev=756035&view=auto
==============================================================================
--- lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONWriter.java (added)
+++ lenya/contributions/2_0_X/modules/rest/java/src/org/json/JSONWriter.java Thu Mar 19 14:47:37 2009
@@ -0,0 +1,310 @@
+package org.json;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/*
+Copyright (c) 2002 JSON.org
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+/**
+ * JSONWriter provides a quick and convenient way of producing JSON text.
+ * The texts produced strictly conform to JSON syntax rules. No whitespace is
+ * added, so the results are ready for transmission or storage. Each instance of
+ * JSONWriter can produce one JSON text.
+ * <p>
+ * A JSONWriter instance provides a <code>value</code> method for appending
+ * values to the
+ * text, and a <code>key</code>
+ * method for adding keys before values in objects. There are <code>array</code>
+ * and <code>endArray</code> methods that make and bound array values, and
+ * <code>object</code> and <code>endObject</code> methods which make and bound
+ * object values. All of these methods return the JSONWriter instance,
+ * permitting a cascade style. For example, <pre>
+ * new JSONWriter(myWriter)
+ * .object()
+ * .key("JSON")
+ * .value("Hello, World!")
+ * .endObject();</pre> which writes <pre>
+ * {"JSON":"Hello, World!"}</pre>
+ * <p>
+ * The first method called must be <code>array</code> or <code>object</code>.
+ * There are no methods for adding commas or colons. JSONWriter adds them for
+ * you. Objects and arrays can be nested up to 20 levels deep.
+ * <p>
+ * This can sometimes be easier than using a JSONObject to build a string.
+ * @author JSON.org
+ * @version 2
+ */
+public class JSONWriter {
+ private static final int maxdepth = 20;
+
+ /**
+ * The comma flag determines if a comma should be output before the next
+ * value.
+ */
+ private boolean comma;
+
+ /**
+ * The current mode. Values:
+ * 'a' (array),
+ * 'd' (done),
+ * 'i' (initial),
+ * 'k' (key),
+ * 'o' (object).
+ */
+ protected char mode;
+
+ /**
+ * The object/array stack.
+ */
+ private char stack[];
+
+ /**
+ * The stack top index. A value of 0 indicates that the stack is empty.
+ */
+ private int top;
+
+ /**
+ * The writer that will receive the output.
+ */
+ protected Writer writer;
+
+ /**
+ * Make a fresh JSONWriter. It can be used to build one JSON text.
+ */
+ public JSONWriter(Writer w) {
+ this.comma = false;
+ this.mode = 'i';
+ this.stack = new char[maxdepth];
+ this.top = 0;
+ this.writer = w;
+ }
+
+ /**
+ * Append a value.
+ * @param s A string value.
+ * @return this
+ * @throws JSONException If the value is out of sequence.
+ */
+ private JSONWriter append(String s) throws JSONException {
+ if (s == null) {
+ throw new JSONException("Null pointer");
+ }
+ if (this.mode == 'o' || this.mode == 'a') {
+ try {
+ if (this.comma && this.mode == 'a') {
+ this.writer.write(',');
+ }
+ this.writer.write(s);
+ } catch (IOException e) {
+ throw new JSONException(e);
+ }
+ if (this.mode == 'o') {
+ this.mode = 'k';
+ }
+ this.comma = true;
+ return this;
+ }
+ throw new JSONException("Value out of sequence.");
+ }
+
+ /**
+ * Begin appending a new array. All values until the balancing
+ * <code>endArray</code> will be appended to this array. The
+ * <code>endArray</code> method must be called to mark the array's end.
+ * @return this
+ * @throws JSONException If the nesting is too deep, or if the object is
+ * started in the wrong place (for example as a key or after the end of the
+ * outermost array or object).
+ */
+ public JSONWriter array() throws JSONException {
+ if (this.mode == 'i' || this.mode == 'o' || this.mode == 'a') {
+ this.push('a');
+ this.append("[");
+ this.comma = false;
+ return this;
+ }
+ throw new JSONException("Misplaced array.");
+ }
+
+ /**
+ * End something.
+ * @param m Mode
+ * @param c Closing character
+ * @return this
+ * @throws JSONException If unbalanced.
+ */
+ private JSONWriter end(char m, char c) throws JSONException {
+ if (this.mode != m) {
+ throw new JSONException(m == 'o' ? "Misplaced endObject." :
+ "Misplaced endArray.");
+ }
+ this.pop(m);
+ try {
+ this.writer.write(c);
+ } catch (IOException e) {
+ throw new JSONException(e);
+ }
+ this.comma = true;
+ return this;
+ }
+
+ /**
+ * End an array. This method most be called to balance calls to
+ * <code>array</code>.
+ * @return this
+ * @throws JSONException If incorrectly nested.
+ */
+ public JSONWriter endArray() throws JSONException {
+ return this.end('a', ']');
+ }
+
+ /**
+ * End an object. This method most be called to balance calls to
+ * <code>object</code>.
+ * @return this
+ * @throws JSONException If incorrectly nested.
+ */
+ public JSONWriter endObject() throws JSONException {
+ return this.end('k', '}');
+ }
+
+ /**
+ * Append a key. The key will be associated with the next value. In an
+ * object, every value must be preceded by a key.
+ * @param s A key string.
+ * @return this
+ * @throws JSONException If the key is out of place. For example, keys
+ * do not belong in arrays or if the key is null.
+ */
+ public JSONWriter key(String s) throws JSONException {
+ if (s == null) {
+ throw new JSONException("Null key.");
+ }
+ if (this.mode == 'k') {
+ try {
+ if (this.comma) {
+ this.writer.write(',');
+ }
+ this.writer.write(JSONObject.quote(s));
+ this.writer.write(':');
+ this.comma = false;
+ this.mode = 'o';
+ return this;
+ } catch (IOException e) {
+ throw new JSONException(e);
+ }
+ }
+ throw new JSONException("Misplaced key.");
+ }
+
+
+ /**
+ * Begin appending a new object. All keys and values until the balancing
+ * <code>endObject</code> will be appended to this object. The
+ * <code>endObject</code> method must be called to mark the object's end.
+ * @return this
+ * @throws JSONException If the nesting is too deep, or if the object is
+ * started in the wrong place (for example as a key or after the end of the
+ * outermost array or object).
+ */
+ public JSONWriter object() throws JSONException {
+ if (this.mode == 'i') {
+ this.mode = 'o';
+ }
+ if (this.mode == 'o' || this.mode == 'a') {
+ this.append("{");
+ this.push('k');
+ this.comma = false;
+ return this;
+ }
+ throw new JSONException("Misplaced object.");
+
+ }
+
+
+ /**
+ * Pop an array or object scope.
+ * @param c The scope to close.
+ * @throws JSONException If nesting is wrong.
+ */
+ private void pop(char c) throws JSONException {
+ if (this.top <= 0 || this.stack[this.top - 1] != c) {
+ throw new JSONException("Nesting error.");
+ }
+ this.top -= 1;
+ this.mode = this.top == 0 ? 'd' : this.stack[this.top - 1];
+ }
+
+ /**
+ * Push an array or object scope.
+ * @param c The scope to open.
+ * @throws JSONException If nesting is too deep.
+ */
+ private void push(char c) throws JSONException {
+ if (this.top >= maxdepth) {
+ throw new JSONException("Nesting too deep.");
+ }
+ this.stack[this.top] = c;
+ this.mode = c;
+ this.top += 1;
+ }
+
+
+ /**
+ * Append either the value <code>true</code> or the value
+ * <code>false</code>.
+ * @param b A boolean.
+ * @return this
+ * @throws JSONException
+ */
+ public JSONWriter value(boolean b) throws JSONException {
+ return this.append(b ? "true" : "false");
+ }
+
+ /**
+ * Append a double value.
+ * @param d A double.
+ * @return this
+ * @throws JSONException If the number is not finite.
+ */
+ public JSONWriter value(double d) throws JSONException {
+ return this.value(new Double(d));
+ }
+
+ /**
+ * Append a long value.
+ * @param l A long.
+ * @return this
+ * @throws JSONException
+ */
+ public JSONWriter value(long l) throws JSONException {
+ return this.append(Long.toString(l));
+ }
+
+
+ /**
+ * Append an object value.
+ * @param o The object to append. It can be null, or a Boolean, Number,
+ * String, JSONObject, or JSONArray, or an object with a toJSONString()
+ * method.
+ * @return this
+ * @throws JSONException If the value is out of sequence.
+ */
+ public JSONWriter value(Object o) throws JSONException {
+ return this.append(JSONObject.valueToString(o));
+ }
+}
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