/
MediaContentProvider.java
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/
MediaContentProvider.java
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/**
* Copyright 2013 Microsoft Corporation
*
* 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.microsoft.windowsazure.services.media.implementation;
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.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.xml.bind.JAXBException;
import javax.xml.parsers.ParserConfigurationException;
import com.microsoft.windowsazure.services.media.implementation.content.MediaServiceDTO;
import com.sun.jersey.core.provider.AbstractMessageReaderWriterProvider;
/**
* Class to plug into Jersey to properly serialize
* raw Media Services DTO types.
*
*/
public class MediaContentProvider<T extends MediaServiceDTO> extends AbstractMessageReaderWriterProvider<T> {
private final ODataAtomMarshaller marshaller;
/**
* Creates the instance
*
* @throws JAXBException
* @throws ParserConfigurationException
*/
public MediaContentProvider() throws JAXBException, ParserConfigurationException {
marshaller = new ODataAtomMarshaller();
}
@Override
public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
// This class only does marshalling, not unmarshalling.
return false;
}
@Override
public T readFrom(Class<T> type, Type genericType, Annotation[] annotations, MediaType mediaType,
MultivaluedMap<String, String> httpHeaders, InputStream entityStream) throws IOException,
WebApplicationException {
throw new UnsupportedOperationException();
}
@Override
public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return MediaServiceDTO.class.isAssignableFrom(type);
}
@Override
public void writeTo(T t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType,
MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException,
WebApplicationException {
try {
marshaller.marshalEntry(t, entityStream);
}
catch (JAXBException e) {
throw new RuntimeException(e);
}
}
}