01: /***
02: * Retrotranslator: a Java bytecode transformer that translates Java classes
03: * compiled with JDK 5.0 into classes that can be run on JVM 1.4.
04: *
05: * Copyright (c) 2005 - 2008 Taras Puchko
06: * All rights reserved.
07: *
08: * Redistribution and use in source and binary forms, with or without
09: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the copyright holders nor the names of its
17: * contributors may be used to endorse or promote products derived from
18: * this software without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30: * THE POSSIBILITY OF SUCH DAMAGE.
31: */package net.sf.retrotranslator.runtime.java.io;
32:
33: import java.io.*;
34: import java.nio.channels.Channel;
35:
36: /**
37: * @author Taras Puchko
38: */
39: public class _Closeable {
40:
41: public static boolean executeInstanceOfInstruction(Object object) {
42: return object instanceof InputStream
43: || object instanceof OutputStream
44: || object instanceof Reader || object instanceof Writer
45: || object instanceof RandomAccessFile
46: || object instanceof Channel
47: || object instanceof Closeable_;
48: }
49:
50: public static Object executeCheckCastInstruction(Object object) {
51: if (object instanceof InputStream) {
52: return (InputStream) object;
53: }
54: if (object instanceof OutputStream) {
55: return (OutputStream) object;
56: }
57: if (object instanceof Reader) {
58: return (Reader) object;
59: }
60: if (object instanceof Writer) {
61: return (Writer) object;
62: }
63: if (object instanceof RandomAccessFile) {
64: return (RandomAccessFile) object;
65: }
66: if (object instanceof Channel) {
67: return (Channel) object;
68: }
69: return (Closeable_) object;
70: }
71:
72: public static void close(Object object) throws IOException {
73: if (object instanceof InputStream) {
74: ((InputStream) object).close();
75: } else if (object instanceof OutputStream) {
76: ((OutputStream) object).close();
77: } else if (object instanceof Reader) {
78: ((Reader) object).close();
79: } else if (object instanceof Writer) {
80: ((Writer) object).close();
81: } else if (object instanceof RandomAccessFile) {
82: ((RandomAccessFile) object).close();
83: } else if (object instanceof Channel) {
84: ((Channel) object).close();
85: } else {
86: ((Closeable_) object).close();
87: }
88: }
89:
90: }
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