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| 1 | +/* |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one or more |
| 3 | + * contributor license agreements. See the NOTICE file distributed with |
| 4 | + * this work for additional information regarding copyright ownership. |
| 5 | + * The ASF licenses this file to You under the Apache License, Version 2.0 |
| 6 | + * (the "License"); you may not use this file except in compliance with |
| 7 | + * the License. You may obtain a copy of the License at |
| 8 | + * |
| 9 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | + * |
| 11 | + * Unless required by applicable law or agreed to in writing, software |
| 12 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | + * See the License for the specific language governing permissions and |
| 15 | + * limitations under the License. |
| 16 | + */ |
| 17 | + |
| 18 | +package org.apache.commons.io.channels; |
| 19 | + |
| 20 | +import java.io.IOException; |
| 21 | +import java.nio.ByteBuffer; |
| 22 | +import java.nio.MappedByteBuffer; |
| 23 | +import java.nio.channels.FileChannel; |
| 24 | +import java.nio.channels.FileLock; |
| 25 | +import java.nio.channels.ReadableByteChannel; |
| 26 | +import java.nio.channels.WritableByteChannel; |
| 27 | + |
| 28 | +/** |
| 29 | + * Proxies a FileChannel. |
| 30 | + */ |
| 31 | +class FileChannelProxy extends FileChannel { |
| 32 | + |
| 33 | + FileChannel fileChannel; |
| 34 | + |
| 35 | + FileChannelProxy(final FileChannel fileChannel) { |
| 36 | + this.fileChannel = fileChannel; |
| 37 | + } |
| 38 | + |
| 39 | + @Override |
| 40 | + public boolean equals(final Object o) { |
| 41 | + return fileChannel.equals(o); |
| 42 | + } |
| 43 | + |
| 44 | + @Override |
| 45 | + public void force(final boolean metaData) throws IOException { |
| 46 | + fileChannel.force(metaData); |
| 47 | + } |
| 48 | + |
| 49 | + @Override |
| 50 | + public int hashCode() { |
| 51 | + return fileChannel.hashCode(); |
| 52 | + } |
| 53 | + |
| 54 | + @Override |
| 55 | + protected void implCloseChannel() throws IOException { |
| 56 | + fileChannel.close(); |
| 57 | + } |
| 58 | + |
| 59 | + @Override |
| 60 | + public FileLock lock(final long position, final long size, final boolean shared) throws IOException { |
| 61 | + return fileChannel.lock(position, size, shared); |
| 62 | + } |
| 63 | + |
| 64 | + @Override |
| 65 | + public MappedByteBuffer map(final MapMode mode, final long position, final long size) throws IOException { |
| 66 | + return fileChannel.map(mode, position, size); |
| 67 | + } |
| 68 | + |
| 69 | + @Override |
| 70 | + public long position() throws IOException { |
| 71 | + return fileChannel.position(); |
| 72 | + } |
| 73 | + |
| 74 | + @Override |
| 75 | + public FileChannel position(final long newPosition) throws IOException { |
| 76 | + return fileChannel.position(newPosition); |
| 77 | + } |
| 78 | + |
| 79 | + @Override |
| 80 | + public int read(final ByteBuffer dst) throws IOException { |
| 81 | + return fileChannel.read(dst); |
| 82 | + } |
| 83 | + |
| 84 | + @Override |
| 85 | + public int read(final ByteBuffer dst, final long position) throws IOException { |
| 86 | + return fileChannel.read(dst, position); |
| 87 | + } |
| 88 | + |
| 89 | + @Override |
| 90 | + public long read(final ByteBuffer[] dsts, final int offset, final int length) throws IOException { |
| 91 | + return fileChannel.read(dsts, offset, length); |
| 92 | + } |
| 93 | + |
| 94 | + @Override |
| 95 | + public long size() throws IOException { |
| 96 | + return fileChannel.size(); |
| 97 | + } |
| 98 | + |
| 99 | + @Override |
| 100 | + public String toString() { |
| 101 | + return fileChannel.toString(); |
| 102 | + } |
| 103 | + |
| 104 | + @Override |
| 105 | + public long transferFrom(final ReadableByteChannel src, final long position, final long count) throws IOException { |
| 106 | + return fileChannel.transferFrom(src, position, count); |
| 107 | + } |
| 108 | + |
| 109 | + @Override |
| 110 | + public long transferTo(final long position, final long count, final WritableByteChannel target) throws IOException { |
| 111 | + return fileChannel.transferTo(position, count, target); |
| 112 | + } |
| 113 | + |
| 114 | + @Override |
| 115 | + public FileChannel truncate(final long size) throws IOException { |
| 116 | + return fileChannel.truncate(size); |
| 117 | + } |
| 118 | + |
| 119 | + @Override |
| 120 | + public FileLock tryLock(final long position, final long size, final boolean shared) throws IOException { |
| 121 | + return fileChannel.tryLock(position, size, shared); |
| 122 | + } |
| 123 | + |
| 124 | + @Override |
| 125 | + public int write(final ByteBuffer src) throws IOException { |
| 126 | + return fileChannel.write(src); |
| 127 | + } |
| 128 | + |
| 129 | + @Override |
| 130 | + public int write(final ByteBuffer src, final long position) throws IOException { |
| 131 | + return fileChannel.write(src, position); |
| 132 | + } |
| 133 | + |
| 134 | + @Override |
| 135 | + public long write(final ByteBuffer[] srcs, final int offset, final int length) throws IOException { |
| 136 | + return fileChannel.write(srcs, offset, length); |
| 137 | + } |
| 138 | +} |
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