/*
* Copyright 1999-2101 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.fastjson;
import static com.alibaba.fastjson.util.TypeUtils.castToBigDecimal;
import static com.alibaba.fastjson.util.TypeUtils.castToBigInteger;
import static com.alibaba.fastjson.util.TypeUtils.castToBoolean;
import static com.alibaba.fastjson.util.TypeUtils.castToByte;
import static com.alibaba.fastjson.util.TypeUtils.castToBytes;
import static com.alibaba.fastjson.util.TypeUtils.castToDate;
import static com.alibaba.fastjson.util.TypeUtils.castToDouble;
import static com.alibaba.fastjson.util.TypeUtils.castToFloat;
import static com.alibaba.fastjson.util.TypeUtils.castToInt;
import static com.alibaba.fastjson.util.TypeUtils.castToLong;
import static com.alibaba.fastjson.util.TypeUtils.castToShort;
import static com.alibaba.fastjson.util.TypeUtils.castToSqlDate;
import static com.alibaba.fastjson.util.TypeUtils.castToTimestamp;
import java.io.Serializable;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Collection;
import java.util.Date;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
import com.alibaba.fastjson.annotation.JSONField;
import com.alibaba.fastjson.parser.ParserConfig;
import com.alibaba.fastjson.util.AnticollisionHashMap;
import com.alibaba.fastjson.util.TypeUtils;
/**
* @author wenshao<szujobs@hotmail.com>
*/
public class JSONObject extends JSON implements Map<String, Object>, JSONAware, Cloneable, Serializable, InvocationHandler {
private static final long serialVersionUID = 1L;
private static final int DEFAULT_INITIAL_CAPACITY = 16;
private final Map<String, Object> map;
public JSONObject(){
this(DEFAULT_INITIAL_CAPACITY, false);
}
public JSONObject(Map<String, Object> map){
this.map = map;
}
public JSONObject(boolean ordered){
this(DEFAULT_INITIAL_CAPACITY, ordered);
}
public JSONObject(int initialCapacity){
this(initialCapacity, false);
}
public JSONObject(int initialCapacity, boolean ordered){
if (ordered) {
map = new LinkedHashMap<String, Object>(initialCapacity);
} else {
map = new AnticollisionHashMap<String, Object>(initialCapacity);
}
}
public int size() {
return map.size();
}
public boolean isEmpty() {
return map.isEmpty();
}
public boolean containsKey(Object key) {
return map.containsKey(key);
}
public boolean containsValue(Object value) {
return map.containsValue(value);
}
public Object get(Object key) {
return map.get(key);
}
public JSONObject getJSONObject(String key) {
Object value = map.get(key);
if (value instanceof JSONObject) {
return (JSONObject) value;
}
return (JSONObject) toJSON(value);
}
public JSONArray getJSONArray(String key) {
Object value = map.get(key);
if (value instanceof JSONArray) {
return (JSONArray) value;
}
return (JSONArray) toJSON(value);
}
public <T> T getObject(String key, Class<T> clazz) {
Object obj = map.get(key);
return TypeUtils.castToJavaBean(obj, clazz);
}
public Boolean getBoolean(String key) {
Object value = get(key);
if (value == null) {
return null;
}
return castToBoolean(value);
}
public byte[] getBytes(String key) {
Object value = get(key);
if (value == null) {
return null;
}
return castToBytes(value);
}
public boolean getBooleanValue(String key) {
Object value = get(key);
if (value == null) {
return false;
}
return castToBoolean(value).booleanValue();
}
public Byte getByte(String key) {
Object value = get(key);
return castToByte(value);
}
public byte getByteValue(String key) {
Object value = get(key);
if (value == null) {
return 0;
}
return castToByte(value).byteValue();
}
public Short getShort(String key) {
Object value = get(key);
return castToShort(value);
}
public short getShortValue(String key) {
Object value = get(key);
if (value == null) {
return 0;
}
return castToShort(value).shortValue();
}
public Integer getInteger(String key) {
Object value = get(key);
return castToInt(value);
}
public int getIntValue(String key) {
Object value = get(key);
if (value == null) {
return 0;
}
return castToInt(value).intValue();
}
public Long getLong(String key) {
Object value = get(key);
return castToLong(value);
}
public long getLongValue(String key) {
Object value = get(key);
if (value == null) {
return 0L;
}
return castToLong(value).longValue();
}
public Float getFloat(String key) {
Object value = get(key);
return castToFloat(value);
}
public float getFloatValue(String key) {
Object value = get(key);
if (value == null) {
return 0F;
}
return castToFloat(value).floatValue();
}
public Double getDouble(String key) {
Object value = get(key);
return castToDouble(value);
}
public double getDoubleValue(String key) {
Object value = get(key);
if (value == null) {
return 0D;
}
return castToDouble(value).floatValue();
}
public BigDecimal getBigDecimal(String key) {
Object value = get(key);
return castToBigDecimal(value);
}
public BigInteger getBigInteger(String key) {
Object value = get(key);
return castToBigInteger(value);
}
public String getString(String key) {
Object value = get(key);
if (value == null) {
return null;
}
return value.toString();
}
public Date getDate(String key) {
Object value = get(key);
return castToDate(value);
}
public java.sql.Date getSqlDate(String key) {
Object value = get(key);
return castToSqlDate(value);
}
public java.sql.Timestamp getTimestamp(String key) {
Object value = get(key);
return castToTimestamp(value);
}
public Object put(String key, Object value) {
return map.put(key, value);
}
public void putAll(Map<? extends String, ? extends Object> m) {
map.putAll(m);
}
public void clear() {
map.clear();
}
public Object remove(Object key) {
return map.remove(key);
}
public Set<String> keySet() {
return map.keySet();
}
public Collection<Object> values() {
return map.values();
}
public Set<Map.Entry<String, Object>> entrySet() {
return map.entrySet();
}
@Override
public Object clone() {
return new JSONObject(new HashMap<String, Object>(map));
}
public boolean equals(Object obj) {
return this.map.equals(obj);
}
public int hashCode() {
return this.map.hashCode();
}
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Class<?>[] parameterTypes = method.getParameterTypes();
if (parameterTypes.length == 1) {
Class<?> returnType = method.getReturnType();
if (returnType != void.class) {
throw new JSONException("illegal setter");
}
String name = null;
JSONField annotation = method.getAnnotation(JSONField.class);
if (annotation != null) {
if (annotation.name().length() != 0) {
name = annotation.name();
}
}
if (name == null) {
name = method.getName();
if (!name.startsWith("set")) {
throw new JSONException("illegal setter");
}
name = name.substring(3);
if (name.length() == 0) {
throw new JSONException("illegal setter");
}
name = Character.toLowerCase(name.charAt(0)) + name.substring(1);
}
map.put(name, args[0]);
return null;
}
if (parameterTypes.length == 0) {
Class<?> returnType = method.getReturnType();
if (returnType == void.class) {
throw new JSONException("illegal getter");
}
String name = null;
JSONField annotation = method.getAnnotation(JSONField.class);
if (annotation != null) {
if (annotation.name().length() != 0) {
name = annotation.name();
}
}
if (name == null) {
name = method.getName();
if (name.startsWith("get")) {
name = name.substring(3);
if (name.length() == 0) {
throw new JSONException("illegal getter");
}
name = Character.toLowerCase(name.charAt(0)) + name.substring(1);
} else if (name.startsWith("is")) {
name = name.substring(2);
if (name.length() == 0) {
throw new JSONException("illegal getter");
}
name = Character.toLowerCase(name.charAt(0)) + name.substring(1);
} else {
throw new JSONException("illegal getter");
}
}
Object value = map.get(name);
return TypeUtils.cast(value, method.getGenericReturnType(), ParserConfig.getGlobalInstance());
}
throw new UnsupportedOperationException(method.toGenericString());
}
}