01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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: package org.apache.commons.io.output;
18:
19: import java.io.IOException;
20: import java.io.FilterOutputStream;
21: import java.io.OutputStream;
22:
23: /**
24: * A Proxy stream which acts as expected, that is it passes the method
25: * calls on to the proxied stream and doesn't change which methods are
26: * being called. It is an alternative base class to FilterOutputStream
27: * to increase reusability.
28: *
29: * @author Stephen Colebourne
30: * @version $Id: ProxyOutputStream.java 471628 2006-11-06 04:06:45Z bayard $
31: */
32: public class ProxyOutputStream extends FilterOutputStream {
33:
34: /**
35: * Constructs a new ProxyOutputStream.
36: *
37: * @param proxy the OutputStream to delegate to
38: */
39: public ProxyOutputStream(OutputStream proxy) {
40: super (proxy);
41: // the proxy is stored in a protected superclass variable named 'out'
42: }
43:
44: /** @see java.io.OutputStream#write(int) */
45: public void write(int idx) throws IOException {
46: out.write(idx);
47: }
48:
49: /** @see java.io.OutputStream#write(byte[]) */
50: public void write(byte[] bts) throws IOException {
51: out.write(bts);
52: }
53:
54: /** @see java.io.OutputStream#write(byte[], int, int) */
55: public void write(byte[] bts, int st, int end) throws IOException {
56: out.write(bts, st, end);
57: }
58:
59: /** @see java.io.OutputStream#flush() */
60: public void flush() throws IOException {
61: out.flush();
62: }
63:
64: /** @see java.io.OutputStream#close() */
65: public void close() throws IOException {
66: out.close();
67: }
68:
69: }
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