001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.json;
016    
017    import com.liferay.portal.kernel.json.JSONArray;
018    import com.liferay.portal.kernel.json.JSONException;
019    import com.liferay.portal.kernel.json.JSONObject;
020    import com.liferay.portal.kernel.log.Log;
021    import com.liferay.portal.kernel.log.LogFactoryUtil;
022    import com.liferay.portal.kernel.util.Validator;
023    
024    import java.io.IOException;
025    import java.io.ObjectInput;
026    import java.io.ObjectOutput;
027    import java.io.Writer;
028    
029    import java.util.ArrayList;
030    import java.util.Iterator;
031    import java.util.List;
032    
033    /**
034     * @author Brian Wing Shun Chan
035     */
036    public class JSONArrayImpl implements JSONArray {
037    
038            public JSONArrayImpl() {
039                    _jsonArray = new org.json.JSONArray();
040            }
041    
042            public JSONArrayImpl(org.json.JSONArray jsonArray) {
043                    _jsonArray = jsonArray;
044            }
045    
046            public JSONArrayImpl(String json) throws JSONException {
047                    try {
048                            if (Validator.isNull(json)) {
049                                    json = _NULL_JSON;
050                            }
051    
052                            _jsonArray = new org.json.JSONArray(json);
053                    }
054                    catch (Exception e) {
055                            throw new JSONException(e);
056                    }
057            }
058    
059            @Override
060            public Object get(int index) {
061                    return _jsonArray.opt(index);
062            }
063    
064            @Override
065            public boolean getBoolean(int index) {
066                    return _jsonArray.optBoolean(index);
067            }
068    
069            @Override
070            public double getDouble(int index) {
071                    return _jsonArray.optDouble(index);
072            }
073    
074            @Override
075            public int getInt(int index) {
076                    return _jsonArray.optInt(index);
077            }
078    
079            public org.json.JSONArray getJSONArray() {
080                    return _jsonArray;
081            }
082    
083            @Override
084            public JSONArray getJSONArray(int index) {
085                    org.json.JSONArray jsonArray = _jsonArray.optJSONArray(index);
086    
087                    if (jsonArray == null) {
088                            return null;
089                    }
090    
091                    return new JSONArrayImpl(jsonArray);
092            }
093    
094            @Override
095            public JSONObject getJSONObject(int index) {
096                    org.json.JSONObject jsonObj = _jsonArray.optJSONObject(index);
097    
098                    if (jsonObj == null) {
099                            return null;
100                    }
101    
102                    return new JSONObjectImpl(jsonObj);
103            }
104    
105            @Override
106            public long getLong(int index) {
107                    return _jsonArray.optLong(index);
108            }
109    
110            @Override
111            public String getString(int index) {
112                    return _jsonArray.optString(index);
113            }
114    
115            @Override
116            public boolean isNull(int index) {
117                    return _jsonArray.isNull(index);
118            }
119    
120            @Override
121            public Iterator<Object> iterator() {
122                    List<Object> list = new ArrayList<>();
123    
124                    for (int i = 0; i < length(); i++) {
125                            list.add(get(i));
126                    }
127    
128                    return list.iterator();
129            }
130    
131            @Override
132            public String join(String separator) throws JSONException {
133                    try {
134                            return _jsonArray.join(separator);
135                    }
136                    catch (Exception e) {
137                            throw new JSONException(e);
138                    }
139            }
140    
141            @Override
142            public int length() {
143                    return _jsonArray.length();
144            }
145    
146            @Override
147            public JSONArray put(boolean value) {
148                    _jsonArray.put(value);
149    
150                    return this;
151            }
152    
153            @Override
154            public JSONArray put(double value) {
155                    try {
156                            _jsonArray.put(value);
157                    }
158                    catch (Exception e) {
159                            if (_log.isWarnEnabled()) {
160                                    _log.warn(e, e);
161                            }
162                    }
163    
164                    return this;
165            }
166    
167            @Override
168            public JSONArray put(int value) {
169                    _jsonArray.put(value);
170    
171                    return this;
172            }
173    
174            @Override
175            public JSONArray put(JSONArray value) {
176                    _jsonArray.put(((JSONArrayImpl)value).getJSONArray());
177    
178                    return this;
179            }
180    
181            @Override
182            public JSONArray put(JSONObject value) {
183                    _jsonArray.put(((JSONObjectImpl)value).getJSONObject());
184    
185                    return this;
186            }
187    
188            @Override
189            public JSONArray put(long value) {
190                    _jsonArray.put(String.valueOf(value));
191    
192                    return this;
193            }
194    
195            @Override
196            public JSONArray put(Object value) {
197                    _jsonArray.put(value);
198    
199                    return this;
200            }
201    
202            @Override
203            public JSONArray put(String value) {
204                    _jsonArray.put(value);
205    
206                    return this;
207            }
208    
209            @Override
210            public void readExternal(ObjectInput objectInput) throws IOException {
211                    try {
212                            _jsonArray = new org.json.JSONArray(objectInput.readUTF());
213                    }
214                    catch (Exception e) {
215                            throw new IOException(e);
216                    }
217            }
218    
219            @Override
220            public String toJSONString() {
221                    return toString();
222            }
223    
224            @Override
225            public String toString() {
226                    return _jsonArray.toString();
227            }
228    
229            @Override
230            public String toString(int indentFactor) throws JSONException {
231                    try {
232                            return _jsonArray.toString(indentFactor);
233                    }
234                    catch (Exception e) {
235                            throw new JSONException(e);
236                    }
237            }
238    
239            @Override
240            public Writer write(Writer writer) throws JSONException {
241                    try {
242                            return _jsonArray.write(writer);
243                    }
244                    catch (Exception e) {
245                            throw new JSONException(e);
246                    }
247            }
248    
249            @Override
250            public void writeExternal(ObjectOutput objectOutput) throws IOException {
251                    objectOutput.writeUTF(toString());
252            }
253    
254            private static final String _NULL_JSON = "[]";
255    
256            private static final Log _log = LogFactoryUtil.getLog(JSONArrayImpl.class);
257    
258            private org.json.JSONArray _jsonArray;
259    
260    }