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1 /* |
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2 * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package javax.tools; |
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27 |
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28 import java.io.IOException; |
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29 import java.io.InputStream; |
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30 import java.io.OutputStream; |
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31 import java.io.Reader; |
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32 import java.io.Writer; |
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33 import java.net.URI; |
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34 |
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35 /** |
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36 * Forwards calls to a given file object. Subclasses of this class |
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37 * might override some of these methods and might also provide |
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38 * additional fields and methods. |
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39 * |
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40 * @param <F> the kind of file object forwarded to by this object |
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41 * @author Peter von der Ahé |
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42 * @since 1.6 |
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43 */ |
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44 public class ForwardingFileObject<F extends FileObject> implements FileObject { |
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45 |
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46 /** |
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47 * The file object which all methods are delegated to. |
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48 */ |
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49 protected final F fileObject; |
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50 |
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51 /** |
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52 * Creates a new instance of ForwardingFileObject. |
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53 * @param fileObject delegate to this file object |
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54 */ |
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55 protected ForwardingFileObject(F fileObject) { |
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56 fileObject.getClass(); // null check |
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57 this.fileObject = fileObject; |
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58 } |
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59 |
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60 public URI toUri() { |
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61 return fileObject.toUri(); |
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62 } |
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63 |
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64 public String getName() { |
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65 return fileObject.getName(); |
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66 } |
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67 |
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68 /** |
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69 * @throws IllegalStateException {@inheritDoc} |
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70 * @throws UnsupportedOperationException {@inheritDoc} |
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71 * @throws IOException {@inheritDoc} |
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72 */ |
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73 public InputStream openInputStream() throws IOException { |
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74 return fileObject.openInputStream(); |
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75 } |
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76 |
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77 /** |
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78 * @throws IllegalStateException {@inheritDoc} |
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79 * @throws UnsupportedOperationException {@inheritDoc} |
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80 * @throws IOException {@inheritDoc} |
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81 */ |
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82 public OutputStream openOutputStream() throws IOException { |
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83 return fileObject.openOutputStream(); |
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84 } |
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85 |
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86 /** |
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87 * @throws IllegalStateException {@inheritDoc} |
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88 * @throws UnsupportedOperationException {@inheritDoc} |
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89 * @throws IOException {@inheritDoc} |
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90 */ |
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91 public Reader openReader(boolean ignoreEncodingErrors) throws IOException { |
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92 return fileObject.openReader(ignoreEncodingErrors); |
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93 } |
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94 |
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95 /** |
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96 * @throws IllegalStateException {@inheritDoc} |
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97 * @throws UnsupportedOperationException {@inheritDoc} |
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98 * @throws IOException {@inheritDoc} |
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99 */ |
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100 public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException { |
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101 return fileObject.getCharContent(ignoreEncodingErrors); |
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102 } |
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103 |
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104 /** |
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105 * @throws IllegalStateException {@inheritDoc} |
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106 * @throws UnsupportedOperationException {@inheritDoc} |
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107 * @throws IOException {@inheritDoc} |
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108 */ |
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109 public Writer openWriter() throws IOException { |
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110 return fileObject.openWriter(); |
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111 } |
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112 |
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113 public long getLastModified() { |
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114 return fileObject.getLastModified(); |
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115 } |
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116 |
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117 public boolean delete() { |
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118 return fileObject.delete(); |
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119 } |
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120 } |