/**
* Copyright 2014 Opower, Inc.
* 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.opower.rest.client.generator.plugins.providers;
import com.opower.rest.client.generator.util.HttpHeaderNames;
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.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
/**
* @author <a href="mailto:bill@burkecentral.com">BillBurke</a>
* @version $Revision: 1 $
*/
@Provider
@Produces("*/*")
@Consumes("*/*")
public class InputStreamProvider implements MessageBodyReader<InputStream>, MessageBodyWriter<InputStream>
{
public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType)
{
return type.equals(InputStream.class);
}
public InputStream readFrom(Class<InputStream> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, String> httpHeaders, InputStream entityStream) throws IOException
{
return entityStream;
}
public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType)
{
return InputStream.class.isAssignableFrom(type);
}
public long getSize(InputStream inputStream, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType)
{
return -1;
}
public void writeTo(InputStream inputStream, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException
{
int c = inputStream.read();
if (c == -1)
{
httpHeaders.putSingle(HttpHeaderNames.CONTENT_LENGTH, Integer.toString(0));
entityStream.write(new byte[0]); // fix RESTEASY-204
return;
}
else
entityStream.write(c);
while ((c = inputStream.read()) != -1)
{
entityStream.write(c);
}
}
}