com.ning.http.client.consumers.FileBodyConsumer Maven / Gradle / Ivy
/*
* Copyright (c) 2010-2012 Sonatype, Inc. All rights reserved.
*
* This program is licensed to you under the Apache License Version 2.0,
* and you may not use this file except in compliance with the Apache License Version 2.0.
* You may obtain a copy of the Apache License Version 2.0 at http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the Apache License Version 2.0 is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the Apache License Version 2.0 for the specific language governing permissions and limitations there under.
*/
package com.ning.http.client.consumers;
import com.ning.http.client.ResumableBodyConsumer;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
/**
* A {@link RandomAccessFile} that can be used as a {@link ResumableBodyConsumer}
*/
public class FileBodyConsumer implements ResumableBodyConsumer {
private final RandomAccessFile file;
public FileBodyConsumer(RandomAccessFile file) {
this.file = file;
}
@Override
public void consume(ByteBuffer byteBuffer) throws IOException {
// TODO: Channel.transferFrom may be a good idea to investigate.
file.write(byteBuffer.array(),
byteBuffer.arrayOffset() + byteBuffer.position(),
byteBuffer.remaining());
}
@Override
public void close() throws IOException {
file.close();
}
@Override
public long getTransferredBytes() throws IOException {
return file.length();
}
@Override
public void resume() throws IOException {
file.seek(getTransferredBytes());
}
}