/* | |
* Copyright 1999-2011 Alibaba Group. | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package com.alibaba.dubbo.common.json; | |
import java.io.IOException; | |
import java.util.HashMap; | |
import java.util.Iterator; | |
import java.util.Map; | |
/** | |
* JSONObject. | |
* | |
* @author qian.lei | |
*/ | |
public class JSONObject implements JSONNode | |
{ | |
private Map<String,Object> mMap = new HashMap<String,Object>(); | |
/** | |
* get. | |
* | |
* @param key key. | |
* @return boolean or long or double or String or JSONArray or JSONObject or null. | |
*/ | |
public Object get(String key) | |
{ | |
return mMap.get(key); | |
} | |
/** | |
* get boolean value. | |
* | |
* @param key key. | |
* @param def default value. | |
* @return value or default value. | |
*/ | |
public boolean getBoolean(String key, boolean def) | |
{ | |
Object tmp = mMap.get(key); | |
return tmp != null && tmp instanceof Boolean ? (Boolean)tmp : def; | |
} | |
/** | |
* get int value. | |
* | |
* @param key key. | |
* @param def default value. | |
* @return value or default value. | |
*/ | |
public int getInt(String key, int def) | |
{ | |
Object tmp = mMap.get(key); | |
return tmp != null && tmp instanceof Number ? ((Number)tmp).intValue() : def; | |
} | |
/** | |
* get long value. | |
* | |
* @param key key. | |
* @param def default value. | |
* @return value or default value. | |
*/ | |
public long getLong(String key, long def) | |
{ | |
Object tmp = mMap.get(key); | |
return tmp != null && tmp instanceof Number ? ((Number)tmp).longValue() : def; | |
} | |
/** | |
* get float value. | |
* | |
* @param key key. | |
* @param def default value. | |
* @return value or default value. | |
*/ | |
public float getFloat(String key, float def) | |
{ | |
Object tmp = mMap.get(key); | |
return tmp != null && tmp instanceof Number ? ((Number)tmp).floatValue() : def; | |
} | |
/** | |
* get double value. | |
* | |
* @param key key. | |
* @param def default value. | |
* @return value or default value. | |
*/ | |
public double getDouble(String key, double def) | |
{ | |
Object tmp = mMap.get(key); | |
return tmp != null && tmp instanceof Number ? ((Number)tmp).doubleValue() : def; | |
} | |
/** | |
* get string value. | |
* | |
* @param key key. | |
* @return value or default value. | |
*/ | |
public String getString(String key) | |
{ | |
Object tmp = mMap.get(key); | |
return tmp == null ? null : tmp.toString(); | |
} | |
/** | |
* get JSONArray value. | |
* | |
* @param key key. | |
* @return value or default value. | |
*/ | |
public JSONArray getArray(String key) | |
{ | |
Object tmp = mMap.get(key); | |
return tmp == null ? null : tmp instanceof JSONArray ? (JSONArray)tmp : null; | |
} | |
/** | |
* get JSONObject value. | |
* | |
* @param key key. | |
* @return value or default value. | |
*/ | |
public JSONObject getObject(String key) | |
{ | |
Object tmp = mMap.get(key); | |
return tmp == null ? null : tmp instanceof JSONObject ? (JSONObject)tmp : null; | |
} | |
/** | |
* get key iterator. | |
* | |
* @return key iterator. | |
*/ | |
public Iterator<String> keys() | |
{ | |
return mMap.keySet().iterator(); | |
} | |
/** | |
* contains key. | |
* | |
* @param key key. | |
* @return contains or not. | |
*/ | |
public boolean contains(String key) | |
{ | |
return mMap.containsKey(key); | |
} | |
/** | |
* put value. | |
* | |
* @param name name. | |
* @param value value. | |
*/ | |
public void put(String name, Object value) | |
{ | |
mMap.put(name, value); | |
} | |
/** | |
* put all. | |
* | |
* @param names name array. | |
* @param values value array. | |
*/ | |
public void putAll(String[] names, Object[] values) | |
{ | |
for(int i=0,len=Math.min(names.length, values.length);i<len;i++) | |
mMap.put(names[i], values[i]); | |
} | |
/** | |
* put all. | |
* | |
* @param map map. | |
*/ | |
public void putAll(Map<String, Object> map) | |
{ | |
for( Map.Entry<String, Object> entry : map.entrySet() ) | |
mMap.put(entry.getKey(), entry.getValue()); | |
} | |
/** | |
* write json. | |
* | |
* @param jc json converter. | |
* @param jb json builder. | |
*/ | |
public void writeJSON(JSONConverter jc, JSONWriter jb, boolean writeClass) throws IOException | |
{ | |
String key; | |
Object value; | |
jb.objectBegin(); | |
for( Map.Entry<String,Object> entry : mMap.entrySet() ) | |
{ | |
key = entry.getKey(); | |
jb.objectItem(key); | |
value = entry.getValue(); | |
if( value == null ) | |
jb.valueNull(); | |
else | |
jc.writeValue(value, jb, writeClass); | |
} | |
jb.objectEnd(); | |
} | |
} |