/*
* Copyright 1999-2017 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.serializer;
import java.io.IOException;
import java.lang.reflect.Type;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONException;
import com.alibaba.fastjson.parser.DefaultJSONParser;
import com.alibaba.fastjson.parser.JSONScanner;
import com.alibaba.fastjson.parser.JSONToken;
import com.alibaba.fastjson.parser.deserializer.AbstractDateDeserializer;
import com.alibaba.fastjson.parser.deserializer.ObjectDeserializer;
import com.alibaba.fastjson.util.IOUtils;
import com.alibaba.fastjson.util.TypeUtils;
/**
* @author wenshao[szujobs@hotmail.com]
*/
public class DateCodec extends AbstractDateDeserializer implements ObjectSerializer, ObjectDeserializer {
public final static DateCodec instance = new DateCodec();
public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features) throws IOException {
SerializeWriter out = serializer.out;
if (object == null) {
out.writeNull();
return;
}
Date date;
if (object instanceof Date) {
date = (Date) object;
} else {
date = TypeUtils.castToDate(object);
}
if (out.isEnabled(SerializerFeature.WriteDateUseDateFormat)) {
DateFormat format = serializer.getDateFormat();
if (format == null) {
format = new SimpleDateFormat(JSON.DEFFAULT_DATE_FORMAT, serializer.locale);
format.setTimeZone(serializer.timeZone);
}
String text = format.format(date);
out.writeString(text);
return;
}
if (out.isEnabled(SerializerFeature.WriteClassName)) {
if (object.getClass() != fieldType) {
if (object.getClass() == java.util.Date.class) {
out.write("new Date(");
out.writeLong(((Date) object).getTime());
out.write(')');
} else {
out.write('{');
out.writeFieldName(JSON.DEFAULT_TYPE_KEY);
serializer.write(object.getClass().getName());
out.writeFieldValue(',', "val", ((Date) object).getTime());
out.write('}');
}
return;
}
}
long time = date.getTime();
if (out.isEnabled(SerializerFeature.UseISO8601DateFormat)) {
char quote = out.isEnabled(SerializerFeature.UseSingleQuotes) ? '\'' : '\"';
out.write(quote);
Calendar calendar = Calendar.getInstance(serializer.timeZone, serializer.locale);
calendar.setTimeInMillis(time);
int year = calendar.get(Calendar.YEAR);
int month = calendar.get(Calendar.MONTH) + 1;
int day = calendar.get(Calendar.DAY_OF_MONTH);
int hour = calendar.get(Calendar.HOUR_OF_DAY);
int minute = calendar.get(Calendar.MINUTE);
int second = calendar.get(Calendar.SECOND);
int millis = calendar.get(Calendar.MILLISECOND);
char[] buf;
if (millis != 0) {
buf = "0000-00-00T00:00:00.000".toCharArray();
IOUtils.getChars(millis, 23, buf);
IOUtils.getChars(second, 19, buf);
IOUtils.getChars(minute, 16, buf);
IOUtils.getChars(hour, 13, buf);
IOUtils.getChars(day, 10, buf);
IOUtils.getChars(month, 7, buf);
IOUtils.getChars(year, 4, buf);
} else {
if (second == 0 && minute == 0 && hour == 0) {
buf = "0000-00-00".toCharArray();
IOUtils.getChars(day, 10, buf);
IOUtils.getChars(month, 7, buf);
IOUtils.getChars(year, 4, buf);
} else {
buf = "0000-00-00T00:00:00".toCharArray();
IOUtils.getChars(second, 19, buf);
IOUtils.getChars(minute, 16, buf);
IOUtils.getChars(hour, 13, buf);
IOUtils.getChars(day, 10, buf);
IOUtils.getChars(month, 7, buf);
IOUtils.getChars(year, 4, buf);
}
}
out.write(buf);
int timeZone = calendar.getTimeZone().getRawOffset()/(3600*1000);
if (timeZone == 0) {
out.write('Z');
} else {
if (timeZone > 0) {
out.append('+').append(String.format("%02d", timeZone));
} else {
out.append('-').append(String.format("%02d", -timeZone));
}
out.append(":00");
}
out.write(quote);
} else {
out.writeLong(time);
}
}
@SuppressWarnings("unchecked")
protected <T> T cast(DefaultJSONParser parser, Type clazz, Object fieldName, Object val) {
if (val == null) {
return null;
}
if (val instanceof java.util.Date) {
return (T) val;
} else if (val instanceof Number) {
return (T) new java.util.Date(((Number) val).longValue());
} else if (val instanceof String) {
String strVal = (String) val;
if (strVal.length() == 0) {
return null;
}
JSONScanner dateLexer = new JSONScanner(strVal);
try {
if (dateLexer.scanISO8601DateIfMatch(false)) {
Calendar calendar = dateLexer.getCalendar();
if (clazz == Calendar.class) {
return (T) calendar;
}
return (T) calendar.getTime();
}
} finally {
dateLexer.close();
}
if (strVal.length() == parser.getDateFomartPattern().length()) {
DateFormat dateFormat = parser.getDateFormat();
try {
return (T) dateFormat.parse(strVal);
} catch (ParseException e) {
// skip
}
}
if (strVal.startsWith("/Date(") && strVal.endsWith(")/")) {
String dotnetDateStr = strVal.substring(6, strVal.length() - 2);
strVal = dotnetDateStr;
}
// JSONScanner iso8601Lexer = new JSONScanner(strVal);
// if (iso8601Lexer.scanISO8601DateIfMatch()) {
// val = iso8601Lexer.getCalendar().getTime();
// }
// iso8601Lexer.close();
if ("0000-00-00".equals(strVal) || "0000-00-00T00:00:00".equalsIgnoreCase(strVal)) {
return null;
}
//
long longVal = Long.parseLong(strVal);
return (T) new java.util.Date(longVal);
}
throw new JSONException("parse error");
}
public int getFastMatchToken() {
return JSONToken.LITERAL_INT;
}
}