/*
* Copyright 2013 Nicolas Morel
*
* 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.github.nmorel.gwtjackson.client.deser;
import java.sql.Time;
import java.sql.Timestamp;
import java.util.Date;
import com.github.nmorel.gwtjackson.client.JsonDeserializationContext;
import com.github.nmorel.gwtjackson.client.JsonDeserializer;
import com.github.nmorel.gwtjackson.client.JsonDeserializerParameters;
import com.github.nmorel.gwtjackson.client.stream.JsonReader;
import com.github.nmorel.gwtjackson.client.stream.JsonToken;
import com.github.nmorel.gwtjackson.client.utils.DateFormat;
/**
* Base implementation of {@link JsonDeserializer} for dates.
*
* @author Nicolas Morel
* @version $Id: $
*/
public abstract class BaseDateJsonDeserializer<D extends Date> extends JsonDeserializer<D> {
/**
* Default implementation of {@link BaseDateJsonDeserializer} for {@link Date}
*/
public static final class DateJsonDeserializer extends BaseDateJsonDeserializer<Date> {
private static final DateJsonDeserializer INSTANCE = new DateJsonDeserializer();
/**
* @return an instance of {@link DateJsonDeserializer}
*/
public static DateJsonDeserializer getInstance() {
return INSTANCE;
}
private DateJsonDeserializer() { }
@Override
protected Date deserializeNumber( long millis, JsonDeserializerParameters params ) {
return new Date( millis );
}
@Override
protected Date deserializeString( String date, JsonDeserializationContext ctx, JsonDeserializerParameters params ) {
return DateFormat.parse(ctx.isUseBrowserTimezone(), params.getPattern(), null, date );
}
}
/**
* Default implementation of {@link BaseDateJsonDeserializer} for {@link java.sql.Date}
*/
public static final class SqlDateJsonDeserializer extends BaseDateJsonDeserializer<java.sql.Date> {
private static final SqlDateJsonDeserializer INSTANCE = new SqlDateJsonDeserializer();
private static final String SQL_DATE_FORMAT = "yyyy-MM-dd";
/**
* @return an instance of {@link SqlDateJsonDeserializer}
*/
public static SqlDateJsonDeserializer getInstance() {
return INSTANCE;
}
private SqlDateJsonDeserializer() { }
@Override
protected java.sql.Date deserializeNumber( long millis, JsonDeserializerParameters params ) {
return new java.sql.Date( millis );
}
@Override
protected java.sql.Date deserializeString( String date, JsonDeserializationContext ctx, JsonDeserializerParameters params ) {
return new java.sql.Date( DateFormat.parse(ctx.isUseBrowserTimezone(), SQL_DATE_FORMAT, false, date).getTime() );
}
}
/**
* Default implementation of {@link BaseDateJsonDeserializer} for {@link Time}
*/
public static final class SqlTimeJsonDeserializer extends BaseDateJsonDeserializer<Time> {
private static final SqlTimeJsonDeserializer INSTANCE = new SqlTimeJsonDeserializer();
/**
* @return an instance of {@link SqlTimeJsonDeserializer}
*/
public static SqlTimeJsonDeserializer getInstance() {
return INSTANCE;
}
private SqlTimeJsonDeserializer() { }
@Override
protected Time deserializeNumber( long millis, JsonDeserializerParameters params ) {
return new Time( millis );
}
@Override
protected Time deserializeString( String date, JsonDeserializationContext ctx, JsonDeserializerParameters params ) {
return Time.valueOf( date );
}
}
/**
* Default implementation of {@link BaseDateJsonDeserializer} for {@link Timestamp}
*/
public static final class SqlTimestampJsonDeserializer extends BaseDateJsonDeserializer<Timestamp> {
private static final SqlTimestampJsonDeserializer INSTANCE = new SqlTimestampJsonDeserializer();
/**
* @return an instance of {@link SqlTimestampJsonDeserializer}
*/
public static SqlTimestampJsonDeserializer getInstance() {
return INSTANCE;
}
private SqlTimestampJsonDeserializer() { }
@Override
protected Timestamp deserializeNumber( long millis, JsonDeserializerParameters params ) {
return new Timestamp( millis );
}
@Override
protected Timestamp deserializeString( String date, JsonDeserializationContext ctx, JsonDeserializerParameters params ) {
return new Timestamp( DateFormat.parse(ctx.isUseBrowserTimezone(), params.getPattern(), null, date ).getTime() );
}
}
/** {@inheritDoc} */
@Override
public D doDeserialize( JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params ) {
if ( params.getShape().isNumeric() || JsonToken.NUMBER.equals( reader.peek() ) ) {
return deserializeNumber( reader.nextLong(), params );
} else {
return deserializeString( reader.nextString(), ctx, params );
}
}
/**
* <p>deserializeNumber</p>
*
* @param millis a long.
* @param params a {@link com.github.nmorel.gwtjackson.client.JsonDeserializerParameters} object.
* @return a D object.
*/
protected abstract D deserializeNumber( long millis, JsonDeserializerParameters params );
/**
* <p>deserializeString</p>
*
* @param date a {@link java.lang.String} object.
* @param ctx a {@link com.github.nmorel.gwtjackson.client.JsonDeserializationContext} object.
* @param params a {@link com.github.nmorel.gwtjackson.client.JsonDeserializerParameters} object.
* @return a D object.
*/
protected abstract D deserializeString( String date, JsonDeserializationContext ctx, JsonDeserializerParameters params );
}