/***
* Copyright (c) 2009 Caelum - www.caelum.com.br/opensource - guilherme.silveira@caelum.com.br
* 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.util.extjs;
import java.io.IOException;
import java.io.Writer;
import javax.servlet.http.HttpServletResponse;
import br.com.caelum.vraptor.interceptor.TypeNameExtractor;
import br.com.caelum.vraptor.ioc.Component;
import br.com.caelum.vraptor.serialization.ProxyInitializer;
import br.com.caelum.vraptor.serialization.xstream.XStreamSerializer;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
import com.thoughtworks.xstream.io.json.JsonHierarchicalStreamDriver;
import com.thoughtworks.xstream.io.json.JsonWriter;
/**
* Implementation for {@link ExtJSJson}.
* @author Daniel Kist
* @author Lucas Cavalcanti
*
*/
@Component
public class DefaultExtJson implements ExtJSJson {
private XStreamSerializer serializer;
private XStream xstream;
private ExtJSWrapper wrapper;
public DefaultExtJson(HttpServletResponse response, TypeNameExtractor extractor, ProxyInitializer initializer)
throws IOException {
xstream = new XStream(new JsonHierarchicalStreamDriver() {
@Override
public HierarchicalStreamWriter createWriter(Writer writer) {
return new JsonWriter(writer, new char[0], "", JsonWriter.DROP_ROOT_MODE) {
@Override
public void addAttribute(String key, String value) {
if (!key.equals("class")) {
super.addAttribute(key, value);
}
}
};
}
});
xstream.setMode(XStream.NO_REFERENCES);
xstream.aliasField("data", ExtJSWrapper.class, "list");
serializer = new XStreamSerializer(xstream, response.getWriter(), extractor, initializer);
}
public ExtJSJson from(Object object) {
wrapper = new ExtJSWrapper(object);
serializer.from(object);
return this;
}
public ExtJSJson exclude(String... names) {
serializer.exclude(names);
return this;
}
public ExtJSJson include(String... fields) {
serializer.include(fields);
return this;
}
public ExtJSJson selected(Object value) {
wrapper.setSelected(value);
return this;
}
public ExtJSJson serialize() {
serializer.from(wrapper).recursive().serialize();
return this;
}
public ExtJSJson success() {
wrapper.setSuccess(true);
return this;
}
public ExtJSJson success(boolean success) {
wrapper.setSuccess(success);
return this;
}
public ExtJSJson total(Integer total) {
wrapper.setTotal(total);
return this;
}
}