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ratel api,used for developer on ratel system,an extension for xposed framewrok,ratel api compatable with original xposed framework
/*
* 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 external.com.alibaba.fastjson.serializer;
import java.io.IOException;
import java.lang.reflect.Type;
import java.math.BigDecimal;
import java.text.DecimalFormat;
import external.com.alibaba.fastjson.parser.DefaultJSONParser;
import external.com.alibaba.fastjson.parser.JSONLexer;
import external.com.alibaba.fastjson.parser.JSONToken;
import external.com.alibaba.fastjson.parser.deserializer.ObjectDeserializer;
import external.com.alibaba.fastjson.util.TypeUtils;
/**
* @author wenshao[[email protected]]
*/
public class NumberCodec implements ObjectSerializer, ObjectDeserializer {
public final static NumberCodec instance = new NumberCodec();
private DecimalFormat decimalFormat = null;
private NumberCodec(){
}
public NumberCodec(DecimalFormat decimalFormat){
this.decimalFormat = decimalFormat;
}
public NumberCodec(String decimalFormat){
this(new DecimalFormat(decimalFormat));
}
public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType) throws IOException {
SerializeWriter out = serializer.out;
if (object == null) {
if ((out.features & SerializerFeature.WriteNullNumberAsZero.mask) != 0) {
out.write('0');
} else {
out.writeNull();
}
return;
}
if (object instanceof Float) {
float floatValue = ((Float) object).floatValue();
if (Float.isNaN(floatValue)) {
out.writeNull();
} else if (Float.isInfinite(floatValue)) {
out.writeNull();
} else {
String floatText= Float.toString(floatValue);
if (floatText.endsWith(".0")) {
floatText = floatText.substring(0, floatText.length() - 2);
}
out.write(floatText);
if ((out.features & SerializerFeature.WriteClassName.mask) != 0) {
out.write('F');
}
}
return;
}
double doubleValue = ((Double) object).doubleValue();
if (Double.isNaN(doubleValue)) {
out.writeNull();
} else if (Double.isInfinite(doubleValue)) {
out.writeNull();
} else {
String doubleText;
if (decimalFormat == null) {
doubleText = Double.toString(doubleValue);
if (doubleText.endsWith(".0")) {
doubleText = doubleText.substring(0, doubleText.length() - 2);
}
} else {
doubleText = decimalFormat.format(doubleValue);
}
out.append(doubleText);
if ((out.features & SerializerFeature.WriteClassName.mask) != 0) {
out.write('D');
}
}
}
@SuppressWarnings("unchecked")
public T deserialze(DefaultJSONParser parser, Type clazz, Object fieldName) {
final JSONLexer lexer = parser.lexer;
int token = lexer.token();
if (token == JSONToken.LITERAL_INT) {
if (clazz == double.class || clazz == Double.class) {
String val = lexer.numberString();
lexer.nextToken(JSONToken.COMMA);
return (T) Double.valueOf(Double.parseDouble(val));
}
if (clazz == float.class || clazz == Float.class) {
String val = lexer.numberString();
lexer.nextToken(JSONToken.COMMA);
return (T) Float.valueOf(Float.parseFloat(val));
}
long val = lexer.longValue();
lexer.nextToken(JSONToken.COMMA);
if (clazz == short.class || clazz == Short.class) {
return (T) Short.valueOf((short) val);
}
if (clazz == byte.class || clazz == Byte.class) {
return (T) Byte.valueOf((byte) val);
}
if (val >= Integer.MIN_VALUE && val <= Integer.MAX_VALUE) {
return (T) Integer.valueOf((int) val);
}
return (T) Long.valueOf(val);
}
if (token == JSONToken.LITERAL_FLOAT) {
if (clazz == double.class || clazz == Double.class) {
String val = lexer.numberString();
lexer.nextToken(JSONToken.COMMA);
return (T) Double.valueOf(Double.parseDouble(val));
}
if (clazz == float.class || clazz == Float.class) {
String val = lexer.numberString();
lexer.nextToken(JSONToken.COMMA);
return (T) Float.valueOf(Float.parseFloat(val));
}
BigDecimal val = lexer.decimalValue();
lexer.nextToken(JSONToken.COMMA);
if (clazz == short.class || clazz == Short.class) {
return (T) Short.valueOf(val.shortValueExact());
}
if (clazz == byte.class || clazz == Byte.class) {
return (T) Byte.valueOf(val.byteValueExact());
}
return (T) val;
}
Object value = parser.parse();
if (value == null) {
return null;
}
if (clazz == double.class || clazz == Double.class) {
return (T) TypeUtils.castToDouble(value);
}
if (clazz == float.class || clazz == Float.class) {
return (T) TypeUtils.castToFloat(value);
}
if (clazz == short.class || clazz == Short.class) {
return (T) TypeUtils.castToShort(value);
}
if (clazz == byte.class || clazz == Byte.class) {
return (T) TypeUtils.castToByte(value);
}
return (T) TypeUtils.castToBigDecimal(value);
}
}