/*
* 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.array.cast;
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.deser.BaseNumberJsonDeserializer.ShortJsonDeserializer;
import com.github.nmorel.gwtjackson.client.deser.array.AbstractArrayJsonDeserializer;
import com.github.nmorel.gwtjackson.client.stream.JsonReader;
import com.github.nmorel.gwtjackson.client.stream.JsonToken;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.JsArrayInteger;
/**
* Default {@link JsonDeserializer} implementation for array of short.
*
* @author Nicolas Morel
*/
public class PrimitiveShortArrayJsonDeserializer extends AbstractArrayJsonDeserializer<short[]> {
private static final PrimitiveShortArrayJsonDeserializer INSTANCE = new PrimitiveShortArrayJsonDeserializer();
/**
* @return an instance of {@link PrimitiveShortArrayJsonDeserializer}
*/
public static PrimitiveShortArrayJsonDeserializer getInstance() {
return INSTANCE;
}
private static native short[] reinterpretCast( JsArrayInteger value ) /*-{
return value;
}-*/;
private static short DEFAULT;
private PrimitiveShortArrayJsonDeserializer() { }
@Override
public short[] doDeserializeArray( JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params ) {
JsArrayInteger jsArray = JsArrayInteger.createArray().cast();
reader.beginArray();
while ( JsonToken.END_ARRAY != reader.peek() ) {
if ( JsonToken.NULL == reader.peek() ) {
reader.skipValue();
jsArray.push( DEFAULT );
} else {
jsArray.push( reader.nextInt() );
}
}
reader.endArray();
if ( GWT.isScript() ) {
return reinterpretCast( jsArray );
} else {
int length = jsArray.length();
short[] ret = new short[length];
for ( int i = 0; i < length; i++ ) {
ret[i] = (short) jsArray.get( i );
}
return ret;
}
}
@Override
protected short[] doDeserializeSingleArray( JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params ) {
return new short[]{ShortJsonDeserializer.getInstance().deserialize( reader, ctx, params )};
}
}