/**
* Copyright (C) 2010 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.xcmis.restatom;
import org.apache.abdera.protocol.server.ResponseContext;
import org.apache.abdera.protocol.server.context.EmptyResponseContext;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.nio.charset.Charset;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
/**
* @author <a href="mailto:andrey.parfonov@exoplatform.com">Andrey Parfonov</a>
* @version $Id: AbderaResponseEntityProvider.java 44 2010-02-08 17:36:56Z
* andrew00x $
*/
@Provider
public class AbderaResponseEntityProvider implements MessageBodyWriter<ResponseContext>
{
/**
* {@inheritDoc}
*/
public long getSize(ResponseContext t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType)
{
return -1;
}
/**
* {@inheritDoc}
*/
public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType)
{
return ResponseContext.class.isAssignableFrom(type);
}
/**
* {@inheritDoc}
*/
public void writeTo(ResponseContext t, Class<?> type, Type genericType, Annotation[] annotations,
MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException,
WebApplicationException
{
if (t.hasEntity())
{
if (t instanceof BinaryResponseContext)
t.writeTo(entityStream);
else
t.writeTo(entityStream, new XmlWriter());
}
else
{
if (t instanceof EmptyResponseContext)
{
String text = t.getStatusText();
if (text != null)
{
String csname = mediaType.getParameters().get("charset");
Charset cs = csname != null ? Charset.forName(csname) : Charset.forName("UTF-8");
Writer w = new OutputStreamWriter(entityStream, cs);
try
{
w.write(text);
}
finally
{
w.flush();
}
}
}
}
}
}