76 lines
2.3 KiB
Java
76 lines
2.3 KiB
Java
/*
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* RandomAccessFileSeekableSource.java
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*
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* Created on May 17, 2006, 1:45 PM
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* Copyright (c) 2006 Heiko Klein
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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*
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*/
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package cpw.mods.fml.repackage.com.nothome.delta;
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import java.io.IOException;
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import java.io.RandomAccessFile;
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import java.nio.ByteBuffer;
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/**
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* Wraps a random access file.
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*/
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public class RandomAccessFileSeekableSource implements SeekableSource {
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private RandomAccessFile raf;
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/**
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* Constructs a new RandomAccessFileSeekableSource.
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* @param raf
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*/
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public RandomAccessFileSeekableSource(RandomAccessFile raf) {
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if (raf == null)
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throw new NullPointerException("raf");
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this.raf = raf;
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}
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public void seek(long pos) throws IOException {
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raf.seek(pos);
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}
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public int read(byte[] b, int off, int len) throws IOException {
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return raf.read(b, off, len);
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}
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public long length() throws IOException {
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return raf.length();
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}
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public void close() throws IOException {
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raf.close();
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}
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public int read(ByteBuffer bb) throws IOException {
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int c = raf.read(bb.array(), bb.position(), bb.remaining());
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if (c == -1)
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return -1;
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bb.position(bb.position() + c);
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return c;
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}
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}
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