| | |
| | | package com.qcloud.cmq.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.StringWriter; |
| | | 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> |
| | | * </ul> |
| | | * |
| | | * @author JSON.org |
| | | * @version 2014-05-03 |
| | | */ |
| | | public class JSONArray { |
| | | |
| | | /** |
| | | * The arrayList where the JSONArray's properties are kept. |
| | | */ |
| | | private final ArrayList<Object> myArrayList; |
| | | |
| | | /** |
| | | * Construct an empty JSONArray. |
| | | */ |
| | | public JSONArray() { |
| | | this.myArrayList = new ArrayList<Object>(); |
| | | } |
| | | |
| | | /** |
| | | * Construct a JSONArray from a JSONTokener. |
| | | * |
| | | * @param x |
| | | * A JSONTokener |
| | | * @throws JSONException |
| | | * If there is a syntax error. |
| | | */ |
| | | public JSONArray(JSONTokener x) throws JSONException { |
| | | this(); |
| | | if (x.nextClean() != '[') { |
| | | throw x.syntaxError("A JSONArray text must start with '['"); |
| | | } |
| | | if (x.nextClean() != ']') { |
| | | x.back(); |
| | | for (;;) { |
| | | if (x.nextClean() == ',') { |
| | | x.back(); |
| | | this.myArrayList.add(JSONObject.NULL); |
| | | } else { |
| | | x.back(); |
| | | this.myArrayList.add(x.nextValue()); |
| | | } |
| | | switch (x.nextClean()) { |
| | | case ',': |
| | | 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<Object> collection) { |
| | | this.myArrayList = new ArrayList<Object>(); |
| | | if (collection != null) { |
| | | Iterator<Object> iter = collection.iterator(); |
| | | while (iter.hasNext()) { |
| | | this.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 = this.opt(index); |
| | | if (object == null) { |
| | | throw new JSONException("JSONArray[" + index + "] not found."); |
| | | } |
| | | return object; |
| | | } |
| | | |
| | | /** |
| | | * Get the boolean value associated with an index. The string values "true" |
| | | * and "false" are converted to boolean. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @return The truth. |
| | | * @throws JSONException |
| | | * If there is no value for the index or if the value is not |
| | | * convertible to boolean. |
| | | */ |
| | | public boolean getBoolean(int index) throws JSONException { |
| | | Object object = this.get(index); |
| | | if (object.equals(Boolean.FALSE) |
| | | || (object instanceof String && ((String) object) |
| | | .equalsIgnoreCase("false"))) { |
| | | return false; |
| | | } else if (object.equals(Boolean.TRUE) |
| | | || (object instanceof String && ((String) object) |
| | | .equalsIgnoreCase("true"))) { |
| | | return true; |
| | | } |
| | | throw new JSONException("JSONArray[" + index + "] is not a boolean."); |
| | | } |
| | | |
| | | /** |
| | | * Get the double value associated with an index. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @return The value. |
| | | * @throws JSONException |
| | | * If the key is not found or if the value cannot be converted |
| | | * to a number. |
| | | */ |
| | | public double getDouble(int index) throws JSONException { |
| | | Object object = this.get(index); |
| | | try { |
| | | return object instanceof Number ? ((Number) object).doubleValue() |
| | | : Double.parseDouble((String) object); |
| | | } catch (Exception e) { |
| | | throw new JSONException("JSONArray[" + index + "] is not a number."); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Get the int value associated with an index. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @return The value. |
| | | * @throws JSONException |
| | | * If the key is not found or if the value is not a number. |
| | | */ |
| | | public int getInt(int index) throws JSONException { |
| | | Object object = this.get(index); |
| | | try { |
| | | return object instanceof Number ? ((Number) object).intValue() |
| | | : Integer.parseInt((String) object); |
| | | } catch (Exception e) { |
| | | throw new JSONException("JSONArray[" + index + "] is not a number."); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Get the JSONArray associated with an index. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @return A JSONArray value. |
| | | * @throws JSONException |
| | | * If there is no value for the index. or if the value is not a |
| | | * JSONArray |
| | | */ |
| | | public JSONArray getJSONArray(int index) throws JSONException { |
| | | Object object = this.get(index); |
| | | if (object instanceof JSONArray) { |
| | | return (JSONArray) object; |
| | | } |
| | | throw new JSONException("JSONArray[" + index + "] is not a JSONArray."); |
| | | } |
| | | |
| | | /** |
| | | * Get the JSONObject associated with an index. |
| | | * |
| | | * @param index |
| | | * subscript |
| | | * @return A JSONObject value. |
| | | * @throws JSONException |
| | | * If there is no value for the index or if the value is not a |
| | | * JSONObject |
| | | */ |
| | | public JSONObject getJSONObject(int index) throws JSONException { |
| | | Object object = this.get(index); |
| | | if (object instanceof JSONObject) { |
| | | return (JSONObject) object; |
| | | } |
| | | throw new JSONException("JSONArray[" + index + "] is not a JSONObject."); |
| | | } |
| | | |
| | | /** |
| | | * Get the long value associated with an index. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @return The value. |
| | | * @throws JSONException |
| | | * If the key is not found or if the value cannot be converted |
| | | * to a number. |
| | | */ |
| | | public long getLong(int index) throws JSONException { |
| | | Object object = this.get(index); |
| | | try { |
| | | return object instanceof Number ? ((Number) object).longValue() |
| | | : Long.parseLong((String) object); |
| | | } catch (Exception e) { |
| | | throw new JSONException("JSONArray[" + index + "] is not a number."); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Get the string associated with an index. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @return A string value. |
| | | * @throws JSONException |
| | | * If there is no string value for the index. |
| | | */ |
| | | public String getString(int index) throws JSONException { |
| | | Object object = this.get(index); |
| | | if (object instanceof String) { |
| | | return (String) object; |
| | | } |
| | | throw new JSONException("JSONArray[" + index + "] not a string."); |
| | | } |
| | | |
| | | /** |
| | | * Determine if the value is 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(this.opt(index)); |
| | | } |
| | | |
| | | /** |
| | | * Make a string from the contents of this JSONArray. The |
| | | * <code>separator</code> string is inserted between each element. Warning: |
| | | * This method assumes that the data structure is acyclical. |
| | | * |
| | | * @param separator |
| | | * A string that will be inserted between the elements. |
| | | * @return a string. |
| | | * @throws JSONException |
| | | * If the array contains an invalid number. |
| | | */ |
| | | public String join(String separator) throws JSONException { |
| | | int len = this.length(); |
| | | StringBuilder sb = new StringBuilder(); |
| | | |
| | | for (int i = 0; i < len; i += 1) { |
| | | if (i > 0) { |
| | | sb.append(separator); |
| | | } |
| | | sb.append(JSONObject.valueToString(this.myArrayList.get(i))); |
| | | } |
| | | return sb.toString(); |
| | | } |
| | | |
| | | /** |
| | | * Get the number of elements in the JSONArray, included nulls. |
| | | * |
| | | * @return The length (or size). |
| | | */ |
| | | public int length() { |
| | | return this.myArrayList.size(); |
| | | } |
| | | |
| | | /** |
| | | * Get the optional object value associated with an index. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @return An object value, or null if there is no object at that index. |
| | | */ |
| | | public Object opt(int index) { |
| | | return (index < 0 || index >= this.length()) ? null : this.myArrayList |
| | | .get(index); |
| | | } |
| | | |
| | | /** |
| | | * Get the optional boolean value associated with an index. It returns false |
| | | * if there is no value at that index, or if the value is not Boolean.TRUE |
| | | * or the String "true". |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @return The truth. |
| | | */ |
| | | public boolean optBoolean(int index) { |
| | | return this.optBoolean(index, false); |
| | | } |
| | | |
| | | /** |
| | | * Get the optional boolean value associated with an index. It returns the |
| | | * defaultValue if there is no value at that index or if it is not a Boolean |
| | | * or the String "true" or "false" (case insensitive). |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @param defaultValue |
| | | * A boolean default. |
| | | * @return The truth. |
| | | */ |
| | | public boolean optBoolean(int index, boolean defaultValue) { |
| | | try { |
| | | return this.getBoolean(index); |
| | | } catch (Exception e) { |
| | | return defaultValue; |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Get the optional double value associated with an index. NaN is returned |
| | | * if there is no value for the index, or if the value is not a number and |
| | | * cannot be converted to a number. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @return The value. |
| | | */ |
| | | public double optDouble(int index) { |
| | | return this.optDouble(index, Double.NaN); |
| | | } |
| | | |
| | | /** |
| | | * Get the optional double value associated with an index. The defaultValue |
| | | * is returned if there is no value for the index, or if the value is not a |
| | | * number and cannot be converted to a number. |
| | | * |
| | | * @param index |
| | | * subscript |
| | | * @param defaultValue |
| | | * The default value. |
| | | * @return The value. |
| | | */ |
| | | public double optDouble(int index, double defaultValue) { |
| | | try { |
| | | return this.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 this.optInt(index, 0); |
| | | } |
| | | |
| | | /** |
| | | * Get the optional int value associated with an index. The defaultValue is |
| | | * returned if there is no value for the index, or if the value is not a |
| | | * number and cannot be converted to a number. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @param defaultValue |
| | | * The default value. |
| | | * @return The value. |
| | | */ |
| | | public int optInt(int index, int defaultValue) { |
| | | try { |
| | | return this.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 = this.opt(index); |
| | | return o instanceof JSONArray ? (JSONArray) o : null; |
| | | } |
| | | |
| | | /** |
| | | * Get the optional JSONObject associated with an index. Null is returned if |
| | | * the key is not found, or null if the index has no value, or if the value |
| | | * is not a JSONObject. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @return A JSONObject value. |
| | | */ |
| | | public JSONObject optJSONObject(int index) { |
| | | Object o = this.opt(index); |
| | | return o instanceof JSONObject ? (JSONObject) o : null; |
| | | } |
| | | |
| | | /** |
| | | * Get the optional long value associated with an index. Zero is returned if |
| | | * there is no value for the index, or if the value is not a number and |
| | | * cannot be converted to a number. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @return The value. |
| | | */ |
| | | public long optLong(int index) { |
| | | return this.optLong(index, 0); |
| | | } |
| | | |
| | | /** |
| | | * Get the optional long value associated with an index. The defaultValue is |
| | | * returned if there is no value for the index, or if the value is not a |
| | | * number and cannot be converted to a number. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @param defaultValue |
| | | * The default value. |
| | | * @return The value. |
| | | */ |
| | | public long optLong(int index, long defaultValue) { |
| | | try { |
| | | return this.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 this.optString(index, ""); |
| | | } |
| | | |
| | | /** |
| | | * Get the optional string associated with an index. The defaultValue is |
| | | * returned if the key is not found. |
| | | * |
| | | * @param index |
| | | * The index must be between 0 and length() - 1. |
| | | * @param defaultValue |
| | | * The default value. |
| | | * @return A String value. |
| | | */ |
| | | public String optString(int index, String defaultValue) { |
| | | Object object = this.opt(index); |
| | | return JSONObject.NULL.equals(object) ? defaultValue : object |
| | | .toString(); |
| | | } |
| | | |
| | | /** |
| | | * Append a boolean value. This increases the array's length by one. |
| | | * |
| | | * @param value |
| | | * A boolean value. |
| | | * @return this. |
| | | */ |
| | | public JSONArray put(boolean value) { |
| | | this.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<Object> value) { |
| | | this.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); |
| | | this.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) { |
| | | this.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) { |
| | | this.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<String, Object> value) { |
| | | this.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) { |
| | | this.myArrayList.add(value); |
| | | return this; |
| | | } |
| | | |
| | | /** |
| | | * Put or replace a boolean value in the JSONArray. If the index is greater |
| | | * than the length of the JSONArray, then null elements will be added as |
| | | * necessary to pad it out. |
| | | * |
| | | * @param index |
| | | * The subscript. |
| | | * @param value |
| | | * A boolean value. |
| | | * @return this. |
| | | * @throws JSONException |
| | | * If the index is negative. |
| | | */ |
| | | public JSONArray put(int index, boolean value) throws JSONException { |
| | | this.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<Object> value) throws JSONException { |
| | | this.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 { |
| | | this.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 { |
| | | this.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 { |
| | | this.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<String, Object> value) throws JSONException { |
| | | this.put(index, new JSONObject(value)); |
| | | return this; |
| | | } |
| | | |
| | | /** |
| | | * Put or replace an object value in the JSONArray. If the index is greater |
| | | * than the length of the JSONArray, then null elements will be added as |
| | | * necessary to pad it out. |
| | | * |
| | | * @param index |
| | | * The subscript. |
| | | * @param value |
| | | * The value to put into the array. The value should be a |
| | | * Boolean, Double, Integer, JSONArray, JSONObject, Long, or |
| | | * String, or the JSONObject.NULL object. |
| | | * @return this. |
| | | * @throws JSONException |
| | | * If the index is negative or if the the value is an invalid |
| | | * number. |
| | | */ |
| | | public JSONArray put(int index, Object value) throws JSONException { |
| | | JSONObject.testValidity(value); |
| | | if (index < 0) { |
| | | throw new JSONException("JSONArray[" + index + "] not found."); |
| | | } |
| | | if (index < this.length()) { |
| | | this.myArrayList.set(index, value); |
| | | } else { |
| | | while (index != this.length()) { |
| | | this.put(JSONObject.NULL); |
| | | } |
| | | this.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) { |
| | | return index >= 0 && index < this.length() |
| | | ? this.myArrayList.remove(index) |
| | | : null; |
| | | } |
| | | |
| | | /** |
| | | * Determine if two JSONArrays are similar. |
| | | * They must contain similar sequences. |
| | | * |
| | | * @param other The other JSONArray |
| | | * @return true if they are equal |
| | | */ |
| | | public boolean similar(Object other) { |
| | | if (!(other instanceof JSONArray)) { |
| | | return false; |
| | | } |
| | | int len = this.length(); |
| | | if (len != ((JSONArray)other).length()) { |
| | | return false; |
| | | } |
| | | for (int i = 0; i < len; i += 1) { |
| | | Object valueThis = this.get(i); |
| | | Object valueOther = ((JSONArray)other).get(i); |
| | | if (valueThis instanceof JSONObject) { |
| | | if (!((JSONObject)valueThis).similar(valueOther)) { |
| | | return false; |
| | | } |
| | | } else if (valueThis instanceof JSONArray) { |
| | | if (!((JSONArray)valueThis).similar(valueOther)) { |
| | | return false; |
| | | } |
| | | } else if (!valueThis.equals(valueOther)) { |
| | | return false; |
| | | } |
| | | } |
| | | return true; |
| | | } |
| | | |
| | | /** |
| | | * Produce a JSONObject by combining a JSONArray of names with the values of |
| | | * this JSONArray. |
| | | * |
| | | * @param names |
| | | * A JSONArray containing a list of key strings. These will be |
| | | * paired with the values. |
| | | * @return A JSONObject, or null if there are no names or if this JSONArray |
| | | * has no values. |
| | | * @throws JSONException |
| | | * If any of the names are null. |
| | | */ |
| | | public JSONObject toJSONObject(JSONArray names) throws JSONException { |
| | | if (names == null || names.length() == 0 || this.length() == 0) { |
| | | return null; |
| | | } |
| | | JSONObject jo = new JSONObject(); |
| | | for (int i = 0; i < names.length(); i += 1) { |
| | | jo.put(names.getString(i), this.opt(i)); |
| | | } |
| | | return jo; |
| | | } |
| | | |
| | | /** |
| | | * Make a JSON text of this JSONArray. For compactness, no unnecessary |
| | | * whitespace is added. If it is not possible to produce a syntactically |
| | | * correct JSON text then null will be returned instead. This could occur if |
| | | * the array contains an invalid number. |
| | | * <p> |
| | | * Warning: This method assumes that the data structure is acyclical. |
| | | * |
| | | * @return a printable, displayable, transmittable representation of the |
| | | * array. |
| | | */ |
| | | public String toString() { |
| | | try { |
| | | return this.toString(0); |
| | | } 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 { |
| | | StringWriter sw = new StringWriter(); |
| | | synchronized (sw.getBuffer()) { |
| | | return this.write(sw, indentFactor, 0).toString(); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Write the contents of the JSONArray as JSON text to a writer. For |
| | | * compactness, no whitespace is added. |
| | | * <p> |
| | | * Warning: This method assumes that the data structure is acyclical. |
| | | * |
| | | * @return The writer. |
| | | * @throws JSONException |
| | | */ |
| | | public Writer write(Writer writer) throws JSONException { |
| | | return this.write(writer, 0, 0); |
| | | } |
| | | |
| | | /** |
| | | * Write the contents of the JSONArray as JSON text to a writer. For |
| | | * compactness, no whitespace is added. |
| | | * <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 indention of the top level. |
| | | * @return The writer. |
| | | * @throws JSONException |
| | | */ |
| | | Writer write(Writer writer, int indentFactor, int indent) |
| | | throws JSONException { |
| | | try { |
| | | boolean commanate = false; |
| | | int length = this.length(); |
| | | writer.write('['); |
| | | |
| | | if (length == 1) { |
| | | JSONObject.writeValue(writer, this.myArrayList.get(0), |
| | | indentFactor, indent); |
| | | } else if (length != 0) { |
| | | final int newindent = indent + indentFactor; |
| | | |
| | | for (int i = 0; i < length; i += 1) { |
| | | if (commanate) { |
| | | writer.write(','); |
| | | } |
| | | if (indentFactor > 0) { |
| | | writer.write('\n'); |
| | | } |
| | | JSONObject.indent(writer, newindent); |
| | | JSONObject.writeValue(writer, this.myArrayList.get(i), |
| | | indentFactor, newindent); |
| | | commanate = true; |
| | | } |
| | | if (indentFactor > 0) { |
| | | writer.write('\n'); |
| | | } |
| | | JSONObject.indent(writer, indent); |
| | | } |
| | | writer.write(']'); |
| | | return writer; |
| | | } catch (IOException e) { |
| | | throw new JSONException(e); |
| | | } |
| | | } |
| | | } |
| | | package com.qcloud.cmq.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.StringWriter;
|
| | | 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>
|
| | | * </ul>
|
| | | *
|
| | | * @author JSON.org
|
| | | * @version 2014-05-03
|
| | | */
|
| | | public class JSONArray {
|
| | |
|
| | | /**
|
| | | * The arrayList where the JSONArray's properties are kept.
|
| | | */
|
| | | private final ArrayList<Object> myArrayList;
|
| | |
|
| | | /**
|
| | | * Construct an empty JSONArray.
|
| | | */
|
| | | public JSONArray() {
|
| | | this.myArrayList = new ArrayList<Object>();
|
| | | }
|
| | |
|
| | | /**
|
| | | * Construct a JSONArray from a JSONTokener.
|
| | | *
|
| | | * @param x
|
| | | * A JSONTokener
|
| | | * @throws JSONException
|
| | | * If there is a syntax error.
|
| | | */
|
| | | public JSONArray(JSONTokener x) throws JSONException {
|
| | | this();
|
| | | if (x.nextClean() != '[') {
|
| | | throw x.syntaxError("A JSONArray text must start with '['");
|
| | | }
|
| | | if (x.nextClean() != ']') {
|
| | | x.back();
|
| | | for (;;) {
|
| | | if (x.nextClean() == ',') {
|
| | | x.back();
|
| | | this.myArrayList.add(JSONObject.NULL);
|
| | | } else {
|
| | | x.back();
|
| | | this.myArrayList.add(x.nextValue());
|
| | | }
|
| | | switch (x.nextClean()) {
|
| | | case ',':
|
| | | 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<Object> collection) {
|
| | | this.myArrayList = new ArrayList<Object>();
|
| | | if (collection != null) {
|
| | | Iterator<Object> iter = collection.iterator();
|
| | | while (iter.hasNext()) {
|
| | | this.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 = this.opt(index);
|
| | | if (object == null) {
|
| | | throw new JSONException("JSONArray[" + index + "] not found.");
|
| | | }
|
| | | return object;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the boolean value associated with an index. The string values "true"
|
| | | * and "false" are converted to boolean.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @return The truth.
|
| | | * @throws JSONException
|
| | | * If there is no value for the index or if the value is not
|
| | | * convertible to boolean.
|
| | | */
|
| | | public boolean getBoolean(int index) throws JSONException {
|
| | | Object object = this.get(index);
|
| | | if (object.equals(Boolean.FALSE)
|
| | | || (object instanceof String && ((String) object)
|
| | | .equalsIgnoreCase("false"))) {
|
| | | return false;
|
| | | } else if (object.equals(Boolean.TRUE)
|
| | | || (object instanceof String && ((String) object)
|
| | | .equalsIgnoreCase("true"))) {
|
| | | return true;
|
| | | }
|
| | | throw new JSONException("JSONArray[" + index + "] is not a boolean.");
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the double value associated with an index.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @return The value.
|
| | | * @throws JSONException
|
| | | * If the key is not found or if the value cannot be converted
|
| | | * to a number.
|
| | | */
|
| | | public double getDouble(int index) throws JSONException {
|
| | | Object object = this.get(index);
|
| | | try {
|
| | | return object instanceof Number ? ((Number) object).doubleValue()
|
| | | : Double.parseDouble((String) object);
|
| | | } catch (Exception e) {
|
| | | throw new JSONException("JSONArray[" + index + "] is not a number.");
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the int value associated with an index.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @return The value.
|
| | | * @throws JSONException
|
| | | * If the key is not found or if the value is not a number.
|
| | | */
|
| | | public int getInt(int index) throws JSONException {
|
| | | Object object = this.get(index);
|
| | | try {
|
| | | return object instanceof Number ? ((Number) object).intValue()
|
| | | : Integer.parseInt((String) object);
|
| | | } catch (Exception e) {
|
| | | throw new JSONException("JSONArray[" + index + "] is not a number.");
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the JSONArray associated with an index.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @return A JSONArray value.
|
| | | * @throws JSONException
|
| | | * If there is no value for the index. or if the value is not a
|
| | | * JSONArray
|
| | | */
|
| | | public JSONArray getJSONArray(int index) throws JSONException {
|
| | | Object object = this.get(index);
|
| | | if (object instanceof JSONArray) {
|
| | | return (JSONArray) object;
|
| | | }
|
| | | throw new JSONException("JSONArray[" + index + "] is not a JSONArray.");
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the JSONObject associated with an index.
|
| | | *
|
| | | * @param index
|
| | | * subscript
|
| | | * @return A JSONObject value.
|
| | | * @throws JSONException
|
| | | * If there is no value for the index or if the value is not a
|
| | | * JSONObject
|
| | | */
|
| | | public JSONObject getJSONObject(int index) throws JSONException {
|
| | | Object object = this.get(index);
|
| | | if (object instanceof JSONObject) {
|
| | | return (JSONObject) object;
|
| | | }
|
| | | throw new JSONException("JSONArray[" + index + "] is not a JSONObject.");
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the long value associated with an index.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @return The value.
|
| | | * @throws JSONException
|
| | | * If the key is not found or if the value cannot be converted
|
| | | * to a number.
|
| | | */
|
| | | public long getLong(int index) throws JSONException {
|
| | | Object object = this.get(index);
|
| | | try {
|
| | | return object instanceof Number ? ((Number) object).longValue()
|
| | | : Long.parseLong((String) object);
|
| | | } catch (Exception e) {
|
| | | throw new JSONException("JSONArray[" + index + "] is not a number.");
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the string associated with an index.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @return A string value.
|
| | | * @throws JSONException
|
| | | * If there is no string value for the index.
|
| | | */
|
| | | public String getString(int index) throws JSONException {
|
| | | Object object = this.get(index);
|
| | | if (object instanceof String) {
|
| | | return (String) object;
|
| | | }
|
| | | throw new JSONException("JSONArray[" + index + "] not a string.");
|
| | | }
|
| | |
|
| | | /**
|
| | | * Determine if the value is 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(this.opt(index));
|
| | | }
|
| | |
|
| | | /**
|
| | | * Make a string from the contents of this JSONArray. The
|
| | | * <code>separator</code> string is inserted between each element. Warning:
|
| | | * This method assumes that the data structure is acyclical.
|
| | | *
|
| | | * @param separator
|
| | | * A string that will be inserted between the elements.
|
| | | * @return a string.
|
| | | * @throws JSONException
|
| | | * If the array contains an invalid number.
|
| | | */
|
| | | public String join(String separator) throws JSONException {
|
| | | int len = this.length();
|
| | | StringBuilder sb = new StringBuilder();
|
| | |
|
| | | for (int i = 0; i < len; i += 1) {
|
| | | if (i > 0) {
|
| | | sb.append(separator);
|
| | | }
|
| | | sb.append(JSONObject.valueToString(this.myArrayList.get(i)));
|
| | | }
|
| | | return sb.toString();
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the number of elements in the JSONArray, included nulls.
|
| | | *
|
| | | * @return The length (or size).
|
| | | */
|
| | | public int length() {
|
| | | return this.myArrayList.size();
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the optional object value associated with an index.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @return An object value, or null if there is no object at that index.
|
| | | */
|
| | | public Object opt(int index) {
|
| | | return (index < 0 || index >= this.length()) ? null : this.myArrayList
|
| | | .get(index);
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the optional boolean value associated with an index. It returns false
|
| | | * if there is no value at that index, or if the value is not Boolean.TRUE
|
| | | * or the String "true".
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @return The truth.
|
| | | */
|
| | | public boolean optBoolean(int index) {
|
| | | return this.optBoolean(index, false);
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the optional boolean value associated with an index. It returns the
|
| | | * defaultValue if there is no value at that index or if it is not a Boolean
|
| | | * or the String "true" or "false" (case insensitive).
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @param defaultValue
|
| | | * A boolean default.
|
| | | * @return The truth.
|
| | | */
|
| | | public boolean optBoolean(int index, boolean defaultValue) {
|
| | | try {
|
| | | return this.getBoolean(index);
|
| | | } catch (Exception e) {
|
| | | return defaultValue;
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the optional double value associated with an index. NaN is returned
|
| | | * if there is no value for the index, or if the value is not a number and
|
| | | * cannot be converted to a number.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @return The value.
|
| | | */
|
| | | public double optDouble(int index) {
|
| | | return this.optDouble(index, Double.NaN);
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the optional double value associated with an index. The defaultValue
|
| | | * is returned if there is no value for the index, or if the value is not a
|
| | | * number and cannot be converted to a number.
|
| | | *
|
| | | * @param index
|
| | | * subscript
|
| | | * @param defaultValue
|
| | | * The default value.
|
| | | * @return The value.
|
| | | */
|
| | | public double optDouble(int index, double defaultValue) {
|
| | | try {
|
| | | return this.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 this.optInt(index, 0);
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the optional int value associated with an index. The defaultValue is
|
| | | * returned if there is no value for the index, or if the value is not a
|
| | | * number and cannot be converted to a number.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @param defaultValue
|
| | | * The default value.
|
| | | * @return The value.
|
| | | */
|
| | | public int optInt(int index, int defaultValue) {
|
| | | try {
|
| | | return this.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 = this.opt(index);
|
| | | return o instanceof JSONArray ? (JSONArray) o : null;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the optional JSONObject associated with an index. Null is returned if
|
| | | * the key is not found, or null if the index has no value, or if the value
|
| | | * is not a JSONObject.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @return A JSONObject value.
|
| | | */
|
| | | public JSONObject optJSONObject(int index) {
|
| | | Object o = this.opt(index);
|
| | | return o instanceof JSONObject ? (JSONObject) o : null;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the optional long value associated with an index. Zero is returned if
|
| | | * there is no value for the index, or if the value is not a number and
|
| | | * cannot be converted to a number.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @return The value.
|
| | | */
|
| | | public long optLong(int index) {
|
| | | return this.optLong(index, 0);
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the optional long value associated with an index. The defaultValue is
|
| | | * returned if there is no value for the index, or if the value is not a
|
| | | * number and cannot be converted to a number.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @param defaultValue
|
| | | * The default value.
|
| | | * @return The value.
|
| | | */
|
| | | public long optLong(int index, long defaultValue) {
|
| | | try {
|
| | | return this.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 this.optString(index, "");
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the optional string associated with an index. The defaultValue is
|
| | | * returned if the key is not found.
|
| | | *
|
| | | * @param index
|
| | | * The index must be between 0 and length() - 1.
|
| | | * @param defaultValue
|
| | | * The default value.
|
| | | * @return A String value.
|
| | | */
|
| | | public String optString(int index, String defaultValue) {
|
| | | Object object = this.opt(index);
|
| | | return JSONObject.NULL.equals(object) ? defaultValue : object
|
| | | .toString();
|
| | | }
|
| | |
|
| | | /**
|
| | | * Append a boolean value. This increases the array's length by one.
|
| | | *
|
| | | * @param value
|
| | | * A boolean value.
|
| | | * @return this.
|
| | | */
|
| | | public JSONArray put(boolean value) {
|
| | | this.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<Object> value) {
|
| | | this.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);
|
| | | this.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) {
|
| | | this.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) {
|
| | | this.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<String, Object> value) {
|
| | | this.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) {
|
| | | this.myArrayList.add(value);
|
| | | return this;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Put or replace a boolean value in the JSONArray. If the index is greater
|
| | | * than the length of the JSONArray, then null elements will be added as
|
| | | * necessary to pad it out.
|
| | | *
|
| | | * @param index
|
| | | * The subscript.
|
| | | * @param value
|
| | | * A boolean value.
|
| | | * @return this.
|
| | | * @throws JSONException
|
| | | * If the index is negative.
|
| | | */
|
| | | public JSONArray put(int index, boolean value) throws JSONException {
|
| | | this.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<Object> value) throws JSONException {
|
| | | this.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 {
|
| | | this.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 {
|
| | | this.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 {
|
| | | this.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<String, Object> value) throws JSONException {
|
| | | this.put(index, new JSONObject(value));
|
| | | return this;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Put or replace an object value in the JSONArray. If the index is greater
|
| | | * than the length of the JSONArray, then null elements will be added as
|
| | | * necessary to pad it out.
|
| | | *
|
| | | * @param index
|
| | | * The subscript.
|
| | | * @param value
|
| | | * The value to put into the array. The value should be a
|
| | | * Boolean, Double, Integer, JSONArray, JSONObject, Long, or
|
| | | * String, or the JSONObject.NULL object.
|
| | | * @return this.
|
| | | * @throws JSONException
|
| | | * If the index is negative or if the the value is an invalid
|
| | | * number.
|
| | | */
|
| | | public JSONArray put(int index, Object value) throws JSONException {
|
| | | JSONObject.testValidity(value);
|
| | | if (index < 0) {
|
| | | throw new JSONException("JSONArray[" + index + "] not found.");
|
| | | }
|
| | | if (index < this.length()) {
|
| | | this.myArrayList.set(index, value);
|
| | | } else {
|
| | | while (index != this.length()) {
|
| | | this.put(JSONObject.NULL);
|
| | | }
|
| | | this.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) {
|
| | | return index >= 0 && index < this.length()
|
| | | ? this.myArrayList.remove(index)
|
| | | : null;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Determine if two JSONArrays are similar.
|
| | | * They must contain similar sequences.
|
| | | *
|
| | | * @param other The other JSONArray
|
| | | * @return true if they are equal
|
| | | */
|
| | | public boolean similar(Object other) {
|
| | | if (!(other instanceof JSONArray)) {
|
| | | return false;
|
| | | }
|
| | | int len = this.length();
|
| | | if (len != ((JSONArray)other).length()) {
|
| | | return false;
|
| | | }
|
| | | for (int i = 0; i < len; i += 1) {
|
| | | Object valueThis = this.get(i);
|
| | | Object valueOther = ((JSONArray)other).get(i);
|
| | | if (valueThis instanceof JSONObject) {
|
| | | if (!((JSONObject)valueThis).similar(valueOther)) {
|
| | | return false;
|
| | | }
|
| | | } else if (valueThis instanceof JSONArray) {
|
| | | if (!((JSONArray)valueThis).similar(valueOther)) {
|
| | | return false;
|
| | | }
|
| | | } else if (!valueThis.equals(valueOther)) {
|
| | | return false;
|
| | | }
|
| | | }
|
| | | return true;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Produce a JSONObject by combining a JSONArray of names with the values of
|
| | | * this JSONArray.
|
| | | *
|
| | | * @param names
|
| | | * A JSONArray containing a list of key strings. These will be
|
| | | * paired with the values.
|
| | | * @return A JSONObject, or null if there are no names or if this JSONArray
|
| | | * has no values.
|
| | | * @throws JSONException
|
| | | * If any of the names are null.
|
| | | */
|
| | | public JSONObject toJSONObject(JSONArray names) throws JSONException {
|
| | | if (names == null || names.length() == 0 || this.length() == 0) {
|
| | | return null;
|
| | | }
|
| | | JSONObject jo = new JSONObject();
|
| | | for (int i = 0; i < names.length(); i += 1) {
|
| | | jo.put(names.getString(i), this.opt(i));
|
| | | }
|
| | | return jo;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Make a JSON text of this JSONArray. For compactness, no unnecessary
|
| | | * whitespace is added. If it is not possible to produce a syntactically
|
| | | * correct JSON text then null will be returned instead. This could occur if
|
| | | * the array contains an invalid number.
|
| | | * <p>
|
| | | * Warning: This method assumes that the data structure is acyclical.
|
| | | *
|
| | | * @return a printable, displayable, transmittable representation of the
|
| | | * array.
|
| | | */
|
| | | public String toString() {
|
| | | try {
|
| | | return this.toString(0);
|
| | | } 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 {
|
| | | StringWriter sw = new StringWriter();
|
| | | synchronized (sw.getBuffer()) {
|
| | | return this.write(sw, indentFactor, 0).toString();
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * Write the contents of the JSONArray as JSON text to a writer. For
|
| | | * compactness, no whitespace is added.
|
| | | * <p>
|
| | | * Warning: This method assumes that the data structure is acyclical.
|
| | | *
|
| | | * @return The writer.
|
| | | * @throws JSONException
|
| | | */
|
| | | public Writer write(Writer writer) throws JSONException {
|
| | | return this.write(writer, 0, 0);
|
| | | }
|
| | |
|
| | | /**
|
| | | * Write the contents of the JSONArray as JSON text to a writer. For
|
| | | * compactness, no whitespace is added.
|
| | | * <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 indention of the top level.
|
| | | * @return The writer.
|
| | | * @throws JSONException
|
| | | */
|
| | | Writer write(Writer writer, int indentFactor, int indent)
|
| | | throws JSONException {
|
| | | try {
|
| | | boolean commanate = false;
|
| | | int length = this.length();
|
| | | writer.write('[');
|
| | |
|
| | | if (length == 1) {
|
| | | JSONObject.writeValue(writer, this.myArrayList.get(0),
|
| | | indentFactor, indent);
|
| | | } else if (length != 0) {
|
| | | final int newindent = indent + indentFactor;
|
| | |
|
| | | for (int i = 0; i < length; i += 1) {
|
| | | if (commanate) {
|
| | | writer.write(',');
|
| | | }
|
| | | if (indentFactor > 0) {
|
| | | writer.write('\n');
|
| | | }
|
| | | JSONObject.indent(writer, newindent);
|
| | | JSONObject.writeValue(writer, this.myArrayList.get(i),
|
| | | indentFactor, newindent);
|
| | | commanate = true;
|
| | | }
|
| | | if (indentFactor > 0) {
|
| | | writer.write('\n');
|
| | | }
|
| | | JSONObject.indent(writer, indent);
|
| | | }
|
| | | writer.write(']');
|
| | | return writer;
|
| | | } catch (IOException e) {
|
| | | throw new JSONException(e);
|
| | | }
|
| | | }
|
| | | }
|