/*******************************************************************************
* Copyright 2012 Geoscience Australia
*
* 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 au.gov.ga.earthsci.core.retrieve.result;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.net.URL;
import java.nio.ByteBuffer;
import au.gov.ga.earthsci.core.retrieve.IRetrievalData;
/**
* {@link IRetrievalData} implementation containing the retrieved resource in
* memory in the form of a {@link ByteBuffer}.
*
* @author Michael de Hoog (michael.dehoog@ga.gov.au)
*/
public class ByteBufferRetrievalData extends AbstractRetrievalData
{
private final ByteBuffer buffer;
public ByteBufferRetrievalData(URL url, ByteBuffer buffer, String contentType)
{
super(url, buffer.limit(), contentType);
this.buffer = buffer;
}
@Override
public InputStream getInputStream()
{
if (buffer.hasArray())
{
return new ByteArrayInputStream(buffer.array(), 0, buffer.limit());
}
synchronized (buffer)
{
byte[] array = new byte[buffer.limit()];
buffer.rewind();
buffer.get(array);
return new ByteArrayInputStream(array);
}
}
@Override
public ByteBuffer getByteBuffer()
{
synchronized (buffer)
{
buffer.rewind();
return buffer.slice();
}
}
}