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/*
* Copyright 2006-2012 Amazon Technologies, Inc. or its affiliates.
* Amazon, Amazon.com and Carbonado are trademarks or registered trademarks
* of Amazon Technologies, Inc. or its affiliates. All rights reserved.
*
* 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.amazon.carbonado.spi;
import java.io.InputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
/**
* InputStream that wraps a RandomAccessFile. A stream can be obtained for a
* RandomAccessFile by getting the file descriptor and creating a
* FileInputStream on it. Problem is that FileInputStream has a finalizer that
* closes the RandomAccessFile.
*
* @author Brian S O'Neill
*/
public class RAFInputStream extends InputStream {
private final RandomAccessFile mRAF;
public RAFInputStream(RandomAccessFile raf) {
mRAF = raf;
}
@Override
public int read() throws IOException {
return mRAF.read();
}
@Override
public int read(byte[] b) throws IOException {
return mRAF.read(b);
}
@Override
public int read(byte[] b, int offset, int length) throws IOException {
return mRAF.read(b, offset, length);
}
@Override
public long skip(long n) throws IOException {
if (n > Integer.MAX_VALUE) {
n = Integer.MAX_VALUE;
}
return mRAF.skipBytes((int) n);
}
@Override
public void close() throws IOException {
mRAF.close();
}
}
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