/**
* Copyright (C) 2003-2008 eXo Platform SAS.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see<http://www.gnu.org/licenses/>.
*/
package org.etk.core.rest.impl.provider;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import javax.ws.rs.Consumes;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.Provider;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerFactoryConfigurationError;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stream.StreamResult;
import org.etk.core.rest.provider.EntityProvider;
import org.xml.sax.InputSource;
@Provider
@Consumes({ MediaType.APPLICATION_XML, MediaType.TEXT_XML, MediaType.APPLICATION_XHTML_XML })
@Produces({ MediaType.APPLICATION_XML, MediaType.TEXT_XML, MediaType.APPLICATION_XHTML_XML })
public class SAXSourceEntityProvider implements EntityProvider<SAXSource> {
/**
* {@inheritDoc}
*/
public boolean isReadable(Class<?> type,
Type genericType,
Annotation[] annotations,
MediaType mediaType) {
return type == SAXSource.class;
}
/**
* {@inheritDoc}
*/
public SAXSource readFrom(Class<SAXSource> type,
Type genericType,
Annotation[] annotations,
MediaType mediaType,
MultivaluedMap<String, String> httpHeaders,
InputStream entityStream) throws IOException {
return new SAXSource(new InputSource(entityStream));
}
/**
* {@inheritDoc}
*/
public long getSize(SAXSource t,
Class<?> type,
Type genericType,
Annotation[] annotations,
MediaType mediaType) {
return -1;
}
/**
* {@inheritDoc}
*/
public boolean isWriteable(Class<?> type,
Type genericType,
Annotation[] annotations,
MediaType mediaType) {
return SAXSource.class.isAssignableFrom(type);
}
/**
* {@inheritDoc}
*/
public void writeTo(SAXSource t,
Class<?> type,
Type genericType,
Annotation[] annotations,
MediaType mediaType,
MultivaluedMap<String, Object> httpHeaders,
OutputStream entityStream) throws IOException {
StreamResult out = new StreamResult(entityStream);
try {
TransformerFactory.newInstance().newTransformer().transform(t, out);
} catch (TransformerConfigurationException e) {
throw new IOException("Can't write to output stream " + e);
} catch (TransformerException e) {
throw new IOException("Can't write to output stream " + e);
} catch (TransformerFactoryConfigurationError e) {
throw new IOException("Can't write to output stream " + e);
}
}
}