Added:
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONArray.java
URL:
http://svn.apache.org/viewvc/wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONArray.java?rev=1220771&view=auto
==============================================================================
---
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONArray.java
(added)
+++
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONArray.java
Mon Dec 19 14:34:44 2011
@@ -0,0 +1,1092 @@
+package org.apache.wicket.ajax.json;
+
+/*
+ Copyright (c) 2002 JSON.org
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in all
+ copies or substantial portions of the Software.
+
+ The Software shall be used for Good, not Evil.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+ */
+
+import java.io.IOException;
+import java.io.Writer;
+import java.lang.reflect.Array;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Iterator;
+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 internal form is an
object having
+ * <code>get</code> and <code>opt</code> methods for accessing the values by
index, and
+ * <code>put</code> methods for adding or replacing values. 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 object</code>.
+ * <p>
+ * The constructor can convert a JSON text into a Java object. The
<code>toString</code> method
+ * converts to JSON text.
+ * <p>
+ * 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 coercion for you.
+ * <p>
+ * The texts produced by the <code>toString</code> methods strictly conform to
JSON syntax 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
+ * bracket.</li>
+ * <li>The <code>null</code> value will be inserted when there is
<code>,</code>
+ * <small>(comma)</small> elision.</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>Values can be separated by <code>;</code> <small>(semicolon)</small> as
well as by
+ * <code>,</code> <small>(comma)</small>.</li>
+ * <li>Numbers may have the <code>0x-</code> <small>(hex)</small> prefix.</li>
+ * </ul>
+ *
+ * @author JSON.org
+ * @version 2011-08-25
+ */
+public class JSONArray
+{
+
+
+ /**
+ * The arrayList where the JSONArray's properties are kept.
+ */
+ private ArrayList myArrayList;
+
+
+ /**
+ * Construct an empty JSONArray.
+ */
+ public JSONArray()
+ {
+ myArrayList = new ArrayList();
+ }
+
+ /**
+ * 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
'['");
+ }
+ if (x.nextClean() != ']')
+ {
+ x.back();
+ for (;;)
+ {
+ if (x.nextClean() == ',')
+ {
+ x.back();
+ myArrayList.add(JSONObject.NULL);
+ }
+ else
+ {
+ x.back();
+ myArrayList.add(x.nextValue());
+ }
+ switch (x.nextClean())
+ {
+ case ';' :
+ case ',' :
+ if (x.nextClean() == ']')
+ {
+ 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)
+ {
+ myArrayList = new ArrayList();
+ if (collection != null)
+ {
+ Iterator iter = collection.iterator();
+ while (iter.hasNext())
+ {
+ myArrayList.add(JSONObject.wrap(iter.next()));
+ }
+ }
+ }
+
+
+ /**
+ * Construct a JSONArray from an array
+ *
+ * @throws JSONException
+ * If not an array.
+ */
+ public JSONArray(Object array) throws JSONException
+ {
+ this();
+ if (array.getClass().isArray())
+ {
+ int length = Array.getLength(array);
+ 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.");
+ }
+ }
+
+
+ /**
+ * 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 = 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 = 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 = 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.");
+ }
+ }
+
+
+ /**
+ * 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 = 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.");
+ }
+ }
+
+
+ /**
+ * 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 = 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 = 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 = 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.");
+ }
+ }
+
+
+ /**
+ * 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 = get(index);
+ if (object instanceof String)
+ {
+ return (String)object;
+ }
+ throw new JSONException("JSONArray[" + index + "] not a
string.");
+ }
+
+
+ /**
+ * Determine if the value is null.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return true if the value at the index is null, or if there is no
value.
+ */
+ public boolean isNull(int index)
+ {
+ return JSONObject.NULL.equals(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 = length();
+ StringBuffer sb = new StringBuffer();
+
+ for (int i = 0; i < len; i += 1)
+ {
+ if (i > 0)
+ {
+ sb.append(separator);
+ }
+ sb.append(JSONObject.valueToString(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 myArrayList.size();
+ }
+
+
+ /**
+ * Get the optional object value associated with an index.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return An object value, or null if there is no object at that index.
+ */
+ public Object opt(int index)
+ {
+ return (index < 0 || index >= length()) ? null :
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 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 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 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)
+ {
+ try
+ {
+ return getDouble(index);
+ }
+ 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 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)
+ {
+ try
+ {
+ return getInt(index);
+ }
+ 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 = 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 = 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 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)
+ {
+ try
+ {
+ return getLong(index);
+ }
+ 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 coverted
+ * to a string.
+ *
+ * @param index
+ * The index must be between 0 and length() - 1.
+ * @return A String value.
+ */
+ public String optString(int index)
+ {
+ return 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 = opt(index);
+ return JSONObject.NULL.equals(object) ? object.toString() :
defaultValue;
+ }
+
+
+ /**
+ * Append a boolean value. This increases the array's length by one.
+ *
+ * @param value
+ * A boolean value.
+ * @return this.
+ */
+ public JSONArray put(boolean value)
+ {
+ put(value ? Boolean.TRUE : Boolean.FALSE);
+ return this;
+ }
+
+
+ /**
+ * 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.
+ */
+ public JSONArray put(Collection value)
+ {
+ put(new JSONArray(value));
+ return this;
+ }
+
+
+ /**
+ * Append a double value. This increases the array's length by one.
+ *
+ * @param value
+ * A double value.
+ * @throws JSONException
+ * if the value is not finite.
+ * @return this.
+ */
+ public JSONArray put(double value) throws JSONException
+ {
+ Double d = new Double(value);
+ JSONObject.testValidity(d);
+ put(d);
+ return this;
+ }
+
+
+ /**
+ * Append an int value. This increases the array's length by one.
+ *
+ * @param value
+ * An int value.
+ * @return this.
+ */
+ public JSONArray put(int value)
+ {
+ put(new Integer(value));
+ return this;
+ }
+
+
+ /**
+ * Append an long value. This increases the array's length by one.
+ *
+ * @param value
+ * A long value.
+ * @return this.
+ */
+ public JSONArray put(long value)
+ {
+ put(new Long(value));
+ return this;
+ }
+
+
+ /**
+ * 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.
+ */
+ public JSONArray put(Map value)
+ {
+ put(new JSONObject(value));
+ return this;
+ }
+
+
+ /**
+ * 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.
+ */
+ public JSONArray put(Object value)
+ {
+ 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
+ {
+ put(index, value ? Boolean.TRUE : Boolean.FALSE);
+ return this;
+ }
+
+
+ /**
+ * 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 not finite.
+ */
+ public JSONArray put(int index, Collection value) throws JSONException
+ {
+ put(index, new JSONArray(value));
+ return this;
+ }
+
+
+ /**
+ * 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 not finite.
+ */
+ public JSONArray put(int index, double value) throws JSONException
+ {
+ put(index, new Double(value));
+ return this;
+ }
+
+
+ /**
+ * 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
+ {
+ put(index, new Integer(value));
+ return this;
+ }
+
+
+ /**
+ * 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
+ {
+ put(index, new Long(value));
+ return this;
+ }
+
+
+ /**
+ * 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.
+ */
+ public JSONArray put(int index, Map value) throws JSONException
+ {
+ 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
+ {
+ JSONObject.testValidity(value);
+ if (index < 0)
+ {
+ throw new JSONException("JSONArray[" + index + "] not
found.");
+ }
+ if (index < length())
+ {
+ myArrayList.set(index, value);
+ }
+ else
+ {
+ while (index != length())
+ {
+ put(JSONObject.NULL);
+ }
+ put(value);
+ }
+ return this;
+ }
+
+
+ /**
+ * 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)
+ {
+ Object o = opt(index);
+ myArrayList.remove(index);
+ return o;
+ }
+
+
+ /**
+ * 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.length() == 0 || length() == 0)
+ {
+ return null;
+ }
+ JSONObject jo = new JSONObject();
+ for (int i = 0; i < names.length(); i += 1)
+ {
+ jo.put(names.getString(i), 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>
+ * Warning: This method assumes that the data structure is acyclical.
+ *
+ * @return a printable, displayable, transmittable representation of
the array.
+ */
+ @Override
+ public String toString()
+ {
+ try
+ {
+ return '[' + join(",") + ']';
+ }
+ catch (Exception e)
+ {
+ return null;
+ }
+ }
+
+
+ /**
+ * Make a prettyprinted JSON text of this JSONArray. 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, 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
+ {
+ return toString(indentFactor, 0);
+ }
+
+
+ /**
+ * Make a prettyprinted JSON text of this JSONArray. 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 indention of the top level.
+ * @return a printable, displayable, transmittable representation of
the array.
+ * @throws JSONException
+ */
+ String toString(int indentFactor, int indent) throws JSONException
+ {
+ int len = length();
+ if (len == 0)
+ {
+ return "[]";
+ }
+ int i;
+ StringBuffer sb = new StringBuffer("[");
+ if (len == 1)
+ {
+ sb.append(JSONObject.valueToString(myArrayList.get(0),
indentFactor, indent));
+ }
+ else
+ {
+ int newindent = indent + indentFactor;
+ sb.append('\n');
+ for (i = 0; i < len; i += 1)
+ {
+ if (i > 0)
+ {
+ sb.append(",\n");
+ }
+ for (int j = 0; j < newindent; j += 1)
+ {
+ sb.append(' ');
+ }
+
sb.append(JSONObject.valueToString(myArrayList.get(i), indentFactor,
newindent));
+ }
+ sb.append('\n');
+ for (i = 0; i < indent; i += 1)
+ {
+ sb.append(' ');
+ }
+ }
+ sb.append(']');
+ return sb.toString();
+ }
+
+
+ /**
+ * Write the contents of the JSONArray 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;
+ int len = length();
+
+ writer.write('[');
+
+ for (int i = 0; i < len; i += 1)
+ {
+ if (b)
+ {
+ writer.write(',');
+ }
+ Object v = myArrayList.get(i);
+ if (v instanceof JSONObject)
+ {
+ ((JSONObject)v).write(writer);
+ }
+ else if (v instanceof JSONArray)
+ {
+ ((JSONArray)v).write(writer);
+ }
+ else
+ {
+
writer.write(JSONObject.valueToString(v));
+ }
+ b = true;
+ }
+ writer.write(']');
+ return writer;
+ }
+ catch (IOException e)
+ {
+ throw new JSONException(e);
+ }
+ }
+}
\ No newline at end of file
Propchange:
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONArray.java
------------------------------------------------------------------------------
svn:executable = *
Added:
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONException.java
URL:
http://svn.apache.org/viewvc/wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONException.java?rev=1220771&view=auto
==============================================================================
---
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONException.java
(added)
+++
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONException.java
Mon Dec 19 14:34:44 2011
@@ -0,0 +1,36 @@
+package org.apache.wicket.ajax.json;
+
+/**
+ * The JSONException is thrown by the JSON.org classes when things are amiss.
+ *
+ * @author JSON.org
+ * @version 2010-12-24
+ */
+public class JSONException extends Exception
+{
+ private static final long serialVersionUID = 0;
+ private Throwable cause;
+
+ /**
+ * Constructs a JSONException with an explanatory message.
+ *
+ * @param message
+ * Detail about the reason for the exception.
+ */
+ public JSONException(String message)
+ {
+ super(message);
+ }
+
+ public JSONException(Throwable cause)
+ {
+ super(cause.getMessage());
+ this.cause = cause;
+ }
+
+ @Override
+ public Throwable getCause()
+ {
+ return cause;
+ }
+}
Propchange:
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONException.java
------------------------------------------------------------------------------
svn:executable = *
Added:
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONML.java
URL:
http://svn.apache.org/viewvc/wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONML.java?rev=1220771&view=auto
==============================================================================
---
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONML.java
(added)
+++
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONML.java
Mon Dec 19 14:34:44 2011
@@ -0,0 +1,576 @@
+package org.apache.wicket.ajax.json;
+
+/*
+ Copyright (c) 2008 JSON.org
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in all
+ copies or substantial portions of the Software.
+
+ The Software shall be used for Good, not Evil.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+ */
+
+import java.util.Iterator;
+
+
+/**
+ * This provides static methods to convert an XML text into a JSONArray or
JSONObject, and to covert
+ * a JSONArray or JSONObject into an XML text using the JsonML transform.
+ *
+ * @author JSON.org
+ * @version 2011-10-05
+ */
+public class JSONML
+{
+
+ /**
+ * Parse XML values and store them in a JSONArray.
+ *
+ * @param x
+ * The XMLTokener containing the source string.
+ * @param arrayForm
+ * true if array form, false if object form.
+ * @param ja
+ * The JSONArray that is containing the current tag or null
if we are at the
+ * outermost level.
+ * @return A JSONArray if the value is the outermost tag, otherwise
null.
+ * @throws JSONException
+ */
+ private static Object parse(XMLTokener x, boolean arrayForm, JSONArray
ja) throws JSONException
+ {
+ String attribute;
+ char c;
+ String closeTag = null;
+ int i;
+ JSONArray newja = null;
+ JSONObject newjo = null;
+ Object token;
+ String tagName = null;
+
+// Test for and skip past these forms:
+// <!-- ... -->
+// <![ ... ]]>
+// <! ... >
+// <? ... ?>
+
+ while (true)
+ {
+ if (!x.more())
+ {
+ throw x.syntaxError("Bad XML");
+ }
+ token = x.nextContent();
+ if (token == XML.LT)
+ {
+ token = x.nextToken();
+ if (token instanceof Character)
+ {
+ if (token == XML.SLASH)
+ {
+
+// Close tag </
+
+ token = x.nextToken();
+ if (!(token instanceof String))
+ {
+ throw new
JSONException("Expected a closing name instead of '" + token +
+ "'.");
+ }
+ if (x.nextToken() != XML.GT)
+ {
+ throw
x.syntaxError("Misshaped close tag");
+ }
+ return token;
+ }
+ else if (token == XML.BANG)
+ {
+
+// <!
+
+ c = x.next();
+ if (c == '-')
+ {
+ if (x.next() == '-')
+ {
+
x.skipPast("-->");
+ }
+ x.back();
+ }
+ else if (c == '[')
+ {
+ token = x.nextToken();
+ if
(token.equals("CDATA") && x.next() == '[')
+ {
+ if (ja != null)
+ {
+
ja.put(x.nextCDATA());
+ }
+ }
+ else
+ {
+ throw
x.syntaxError("Expected 'CDATA['");
+ }
+ }
+ else
+ {
+ i = 1;
+ do
+ {
+ token =
x.nextMeta();
+ if (token ==
null)
+ {
+ throw
x.syntaxError("Missing '>' after '<!'.");
+ }
+ else if (token
== XML.LT)
+ {
+ i += 1;
+ }
+ else if (token
== XML.GT)
+ {
+ i -= 1;
+ }
+ }
+ while (i > 0);
+ }
+ }
+ else if (token == XML.QUEST)
+ {
+
+// <?
+
+ x.skipPast("?>");
+ }
+ else
+ {
+ throw x.syntaxError("Misshaped
tag");
+ }
+
+// Open tag <
+
+ }
+ else
+ {
+ if (!(token instanceof String))
+ {
+ throw x.syntaxError("Bad
tagName '" + token + "'.");
+ }
+ tagName = (String)token;
+ newja = new JSONArray();
+ newjo = new JSONObject();
+ if (arrayForm)
+ {
+ newja.put(tagName);
+ if (ja != null)
+ {
+ ja.put(newja);
+ }
+ }
+ else
+ {
+ newjo.put("tagName", tagName);
+ if (ja != null)
+ {
+ ja.put(newjo);
+ }
+ }
+ token = null;
+ for (;;)
+ {
+ if (token == null)
+ {
+ token = x.nextToken();
+ }
+ if (token == null)
+ {
+ throw
x.syntaxError("Misshaped tag");
+ }
+ if (!(token instanceof String))
+ {
+ break;
+ }
+
+// attribute = value
+
+ attribute = (String)token;
+ if (!arrayForm && (attribute ==
"tagName" || attribute == "childNode"))
+ {
+ throw
x.syntaxError("Reserved attribute.");
+ }
+ token = x.nextToken();
+ if (token == XML.EQ)
+ {
+ token = x.nextToken();
+ if (!(token instanceof
String))
+ {
+ throw
x.syntaxError("Missing value");
+ }
+
newjo.accumulate(attribute, XML.stringToValue((String)token));
+ token = null;
+ }
+ else
+ {
+
newjo.accumulate(attribute, "");
+ }
+ }
+ if (arrayForm && newjo.length() > 0)
+ {
+ newja.put(newjo);
+ }
+
+// Empty tag <.../>
+
+ if (token == XML.SLASH)
+ {
+ if (x.nextToken() != XML.GT)
+ {
+ throw
x.syntaxError("Misshaped tag");
+ }
+ if (ja == null)
+ {
+ if (arrayForm)
+ {
+ return newja;
+ }
+ else
+ {
+ return newjo;
+ }
+ }
+
+// Content, between <...> and </...>
+
+ }
+ else
+ {
+ if (token != XML.GT)
+ {
+ throw
x.syntaxError("Misshaped tag");
+ }
+ closeTag = (String)parse(x,
arrayForm, newja);
+ if (closeTag != null)
+ {
+ if
(!closeTag.equals(tagName))
+ {
+ throw
x.syntaxError("Mismatched '" + tagName + "' and '" +
+
closeTag + "'");
+ }
+ tagName = null;
+ if (!arrayForm &&
newja.length() > 0)
+ {
+
newjo.put("childNodes", newja);
+ }
+ if (ja == null)
+ {
+ if (arrayForm)
+ {
+ return
newja;
+ }
+ else
+ {
+ return
newjo;
+ }
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ if (ja != null)
+ {
+ ja.put(token instanceof String ?
XML.stringToValue((String)token) : token);
+ }
+ }
+ }
+ }
+
+
+ /**
+ * Convert a well-formed (but not necessarily valid) XML string into a
JSONArray using the
+ * JsonML transform. Each XML tag is represented as a JSONArray in
which the first element is
+ * the tag name. If the tag has attributes, then the second element
will be JSONObject
+ * containing the name/value pairs. If the tag contains children, then
strings and JSONArrays
+ * will represent the child tags. Comments, prologs, DTDs, and
<code><[ [ ]]></code> are
+ * ignored.
+ *
+ * @param string
+ * The source string.
+ * @return A JSONArray containing the structured data from the XML
string.
+ * @throws JSONException
+ */
+ public static JSONArray toJSONArray(String string) throws JSONException
+ {
+ return toJSONArray(new XMLTokener(string));
+ }
+
+
+ /**
+ * Convert a well-formed (but not necessarily valid) XML string into a
JSONArray using the
+ * JsonML transform. Each XML tag is represented as a JSONArray in
which the first element is
+ * the tag name. If the tag has attributes, then the second element
will be JSONObject
+ * containing the name/value pairs. If the tag contains children, then
strings and JSONArrays
+ * will represent the child content and tags. Comments, prologs, DTDs,
and
+ * <code><[ [ ]]></code> are ignored.
+ *
+ * @param x
+ * An XMLTokener.
+ * @return A JSONArray containing the structured data from the XML
string.
+ * @throws JSONException
+ */
+ public static JSONArray toJSONArray(XMLTokener x) throws JSONException
+ {
+ return (JSONArray)parse(x, true, null);
+ }
+
+
+ /**
+ * Convert a well-formed (but not necessarily valid) XML string into a
JSONObject using the
+ * JsonML transform. Each XML tag is represented as a JSONObject with a
"tagName" property. If
+ * the tag has attributes, then the attributes will be in the
JSONObject as properties. If the
+ * tag contains children, the object will have a "childNodes" property
which will be an array of
+ * strings and JsonML JSONObjects.
+ *
+ * Comments, prologs, DTDs, and <code><[ [ ]]></code> are ignored.
+ *
+ * @param x
+ * An XMLTokener of the XML source text.
+ * @return A JSONObject containing the structured data from the XML
string.
+ * @throws JSONException
+ */
+ public static JSONObject toJSONObject(XMLTokener x) throws JSONException
+ {
+ return (JSONObject)parse(x, false, null);
+ }
+
+
+ /**
+ * Convert a well-formed (but not necessarily valid) XML string into a
JSONObject using the
+ * JsonML transform. Each XML tag is represented as a JSONObject with a
"tagName" property. If
+ * the tag has attributes, then the attributes will be in the
JSONObject as properties. If the
+ * tag contains children, the object will have a "childNodes" property
which will be an array of
+ * strings and JsonML JSONObjects.
+ *
+ * Comments, prologs, DTDs, and <code><[ [ ]]></code> are ignored.
+ *
+ * @param string
+ * The XML source text.
+ * @return A JSONObject containing the structured data from the XML
string.
+ * @throws JSONException
+ */
+ public static JSONObject toJSONObject(String string) throws
JSONException
+ {
+ return toJSONObject(new XMLTokener(string));
+ }
+
+
+ /**
+ * Reverse the JSONML transformation, making an XML text from a
JSONArray.
+ *
+ * @param ja
+ * A JSONArray.
+ * @return An XML string.
+ * @throws JSONException
+ */
+ public static String toString(JSONArray ja) throws JSONException
+ {
+ int i;
+ JSONObject jo;
+ String key;
+ Iterator keys;
+ int length;
+ Object object;
+ StringBuffer sb = new StringBuffer();
+ String tagName;
+ String value;
+
+// Emit <tagName
+
+ tagName = ja.getString(0);
+ XML.noSpace(tagName);
+ tagName = XML.escape(tagName);
+ sb.append('<');
+ sb.append(tagName);
+
+ object = ja.opt(1);
+ if (object instanceof JSONObject)
+ {
+ i = 2;
+ jo = (JSONObject)object;
+
+// Emit the attributes
+
+ keys = jo.keys();
+ while (keys.hasNext())
+ {
+ key = keys.next().toString();
+ XML.noSpace(key);
+ value = jo.optString(key);
+ if (value != null)
+ {
+ sb.append(' ');
+ sb.append(XML.escape(key));
+ sb.append('=');
+ sb.append('"');
+ sb.append(XML.escape(value));
+ sb.append('"');
+ }
+ }
+ }
+ else
+ {
+ i = 1;
+ }
+
+// Emit content in body
+
+ length = ja.length();
+ if (i >= length)
+ {
+ sb.append('/');
+ sb.append('>');
+ }
+ else
+ {
+ sb.append('>');
+ do
+ {
+ object = ja.get(i);
+ i += 1;
+ if (object != null)
+ {
+ if (object instanceof String)
+ {
+
sb.append(XML.escape(object.toString()));
+ }
+ else if (object instanceof JSONObject)
+ {
+
sb.append(toString((JSONObject)object));
+ }
+ else if (object instanceof JSONArray)
+ {
+
sb.append(toString((JSONArray)object));
+ }
+ }
+ }
+ while (i < length);
+ sb.append('<');
+ sb.append('/');
+ sb.append(tagName);
+ sb.append('>');
+ }
+ return sb.toString();
+ }
+
+ /**
+ * Reverse the JSONML transformation, making an XML text from a
JSONObject. The JSONObject must
+ * contain a "tagName" property. If it has children, then it must have
a "childNodes" property
+ * containing an array of objects. The other properties are attributes
with string values.
+ *
+ * @param jo
+ * A JSONObject.
+ * @return An XML string.
+ * @throws JSONException
+ */
+ public static String toString(JSONObject jo) throws JSONException
+ {
+ StringBuffer sb = new StringBuffer();
+ int i;
+ JSONArray ja;
+ String key;
+ Iterator keys;
+ int length;
+ Object object;
+ String tagName;
+ String value;
+
+// Emit <tagName
+
+ tagName = jo.optString("tagName");
+ if (tagName == null)
+ {
+ return XML.escape(jo.toString());
+ }
+ XML.noSpace(tagName);
+ tagName = XML.escape(tagName);
+ sb.append('<');
+ sb.append(tagName);
+
+// Emit the attributes
+
+ keys = jo.keys();
+ while (keys.hasNext())
+ {
+ key = keys.next().toString();
+ if (!key.equals("tagName") && !key.equals("childNodes"))
+ {
+ XML.noSpace(key);
+ value = jo.optString(key);
+ if (value != null)
+ {
+ sb.append(' ');
+ sb.append(XML.escape(key));
+ sb.append('=');
+ sb.append('"');
+ sb.append(XML.escape(value));
+ sb.append('"');
+ }
+ }
+ }
+
+// Emit content in body
+
+ ja = jo.optJSONArray("childNodes");
+ if (ja == null)
+ {
+ sb.append('/');
+ sb.append('>');
+ }
+ else
+ {
+ sb.append('>');
+ length = ja.length();
+ for (i = 0; i < length; i += 1)
+ {
+ object = ja.get(i);
+ if (object != null)
+ {
+ if (object instanceof String)
+ {
+
sb.append(XML.escape(object.toString()));
+ }
+ else if (object instanceof JSONObject)
+ {
+
sb.append(toString((JSONObject)object));
+ }
+ else if (object instanceof JSONArray)
+ {
+
sb.append(toString((JSONArray)object));
+ }
+ else
+ {
+ sb.append(object.toString());
+ }
+ }
+ }
+ sb.append('<');
+ sb.append('/');
+ sb.append(tagName);
+ sb.append('>');
+ }
+ return sb.toString();
+ }
+}
\ No newline at end of file
Propchange:
wicket/trunk/wicket-core/src/main/java/org/apache/wicket/ajax/json/JSONML.java
------------------------------------------------------------------------------
svn:executable = *
