/***
* Copyright (c) 2009 Caelum - www.caelum.com.br/opensource All rights reserved.
*
* 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 br.com.caelum.vraptor.serialization.gson;
import java.io.IOException;
import javax.enterprise.context.RequestScoped;
import javax.inject.Inject;
import javax.servlet.http.HttpServletResponse;
import br.com.caelum.vraptor.interceptor.TypeNameExtractor;
import br.com.caelum.vraptor.rest.gson.GsonSerializerBuilder;
import br.com.caelum.vraptor.serialization.JSONPSerialization;
import br.com.caelum.vraptor.serialization.JSONSerialization;
import br.com.caelum.vraptor.serialization.SerializerBuilder;
import br.com.caelum.vraptor.view.ResultException;
/**
* Gson implementation for JSONPSerialization
*
* @author Otávio Scherer Garcia
* @since 4.0.0
*/
@RequestScoped
public class GsonJSONPSerialization implements JSONPSerialization {
private final HttpServletResponse response;
private final TypeNameExtractor extractor;
private final GsonSerializerBuilder builder;
/**
* @deprecated CDI eyes only
*/
protected GsonJSONPSerialization() {
this(null, null, null);
}
@Inject
public GsonJSONPSerialization(HttpServletResponse response, TypeNameExtractor extractor,
GsonSerializerBuilder builder) {
this.response = response;
this.extractor = extractor;
this.builder = builder;
}
@Override
public JSONSerialization withCallback(final String callbackName) {
return new GsonJSONSerialization(response, extractor, builder) {
@Override
protected SerializerBuilder getSerializer() {
try {
return new GsonSerializer(builder, response.getWriter(), extractor) {
@Override
public void serialize() {
try {
response.getWriter().append(callbackName).append("(");
super.serialize();
response.getWriter().append(")");
response.getWriter().flush();
} catch (IOException e) {
throw new ResultException("Unable to serialize data", e);
}
}
};
} catch (IOException e) {
throw new ResultException("Unable to serialize data", e);
}
}
};
}
}