Mercurial > hg > graal-compiler
annotate graal/com.oracle.max.base/src/com/sun/max/program/Classpath.java @ 3733:e233f5660da4
Added Java files from Maxine project.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 19:59:18 +0100 |
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children | bc8527f3071c |
rev | line source |
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1 /* |
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2 * Copyright (c) 2007, 2011, 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. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.sun.max.program; |
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24 |
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25 import java.io.*; |
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26 import java.util.*; |
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27 import java.util.zip.*; |
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28 |
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29 import com.sun.max.io.*; |
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30 |
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31 /** |
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32 */ |
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33 public class Classpath { |
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34 |
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35 private static final List<Entry> EMPTY_LIST = Collections.emptyList(); |
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36 |
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37 public static final Classpath EMPTY = new Classpath(EMPTY_LIST); |
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38 |
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39 private final List<Entry> entries; |
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40 |
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41 /** |
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42 * An entry in a classpath is a file system path that denotes an existing {@linkplain Directory directory}, |
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43 * an existing {@linkplain Archive zip/jar} file or a {@linkplain PlainFile neither}. |
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44 */ |
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45 public abstract static class Entry { |
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46 |
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47 /** |
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48 * Gets the string representing the underlying path of this entry. |
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49 */ |
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50 public final String path() { |
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51 return file().getPath(); |
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52 } |
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53 |
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54 /** |
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55 * Gets the File object representing the underlying path of this entry. |
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56 */ |
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57 public abstract File file(); |
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58 |
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59 /** |
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60 * Determines if a given resource can be found under this entry. |
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61 * |
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62 * @param path a file path relative to this classpath entry. This values uses the '/' character as the path |
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63 * separator regardless of the {@linkplain File#separatorChar default} for the underlying platform. |
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64 */ |
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65 public abstract boolean contains(String path); |
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66 |
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67 /** |
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68 * Gets the contents of a file denoted by a given path that is relative to this classpath entry. If the denoted |
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69 * file does not exist under this classpath entry then {@code null} is returned. Any IO exception that occurs |
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70 * when reading is silently ignored. |
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71 * |
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72 * @param path a file path relative to this classpath entry. This values uses the '/' character as the path |
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73 * separator regardless of the {@linkplain File#separatorChar default} for the underlying platform. |
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74 */ |
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75 abstract ClasspathFile readFile(String path); |
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76 |
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77 public boolean isDirectory() { |
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78 return false; |
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79 } |
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80 |
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81 public boolean isArchive() { |
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82 return false; |
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83 } |
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84 |
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85 public boolean isPlainFile() { |
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86 return false; |
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87 } |
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88 |
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89 @Override |
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90 public String toString() { |
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91 return path(); |
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92 } |
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93 |
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94 public ZipFile zipFile() { |
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95 return null; |
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96 } |
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97 } |
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98 |
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99 /** |
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100 * Represents a classpath entry that is neither an existing directory nor an existing zip/jar archive file. |
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101 */ |
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102 static final class PlainFile extends Entry { |
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103 |
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104 private final File file; |
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105 |
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106 public PlainFile(File file) { |
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107 this.file = file; |
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108 } |
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109 |
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110 @Override |
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111 ClasspathFile readFile(String path) { |
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112 return null; |
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113 } |
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114 |
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115 @Override |
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116 public File file() { |
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117 return file; |
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118 } |
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119 |
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120 @Override |
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121 public boolean isPlainFile() { |
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122 return true; |
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123 } |
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124 |
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125 @Override |
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126 public boolean contains(String path) { |
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127 return false; |
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128 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
129 } |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
130 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
131 /** |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
132 * Represents a classpath entry that is a path to an existing directory. |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
133 */ |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
134 static final class Directory extends Entry { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
135 private final File directory; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
136 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
137 public Directory(File directory) { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
138 this.directory = directory; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
139 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
140 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
141 @Override |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
142 ClasspathFile readFile(String path) { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
143 final File file = new File(directory, File.separatorChar == '/' ? path : path.replace('/', File.separatorChar)); |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
144 if (file.exists()) { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
145 try { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
146 return new ClasspathFile(Files.toBytes(file), this); |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
147 } catch (IOException ioException) { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
148 ProgramWarning.message("Error reading from " + file + ": " + ioException); |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
149 return null; |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
150 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
151 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
152 return null; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
153 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
154 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
155 @Override |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
156 public File file() { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
157 return directory; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
158 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
159 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
160 @Override |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
161 public boolean isDirectory() { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
162 return true; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
163 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
164 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
165 @Override |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
166 public boolean contains(String path) { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
167 return new File(directory, File.separatorChar == '/' ? path : path.replace('/', File.separatorChar)).exists(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
168 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
169 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
170 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
171 /** |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
172 * Represents a classpath entry that is a path to an existing zip/jar archive file. |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
173 */ |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
174 static final class Archive extends Entry { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
175 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
176 private final File file; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
177 private ZipFile zipFile; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
178 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
179 public Archive(File file) { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
180 this.file = file; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
181 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
182 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
183 @Override |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
184 public ZipFile zipFile() { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
185 if (zipFile == null && file != null) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
186 try { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
187 zipFile = new ZipFile(file); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
188 } catch (IOException e) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
189 ProgramWarning.message("Error opening ZIP file: " + file.getPath()); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
190 e.printStackTrace(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
191 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
192 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
193 return zipFile; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
194 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
195 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
196 @Override |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
197 public boolean contains(String path) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
198 final ZipFile zf = zipFile(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
199 if (zf == null) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
200 return false; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
201 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
202 return zf.getEntry(path) != null; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
203 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
204 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
205 @Override |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
206 ClasspathFile readFile(String path) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
207 final ZipFile zf = zipFile(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
208 if (zf == null) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
209 return null; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
210 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
211 try { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
212 final ZipEntry zipEntry = zf.getEntry(path); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
213 if (zipEntry != null) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
214 return new ClasspathFile(readZipEntry(zf, zipEntry), this); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
215 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
216 } catch (IOException ioException) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
217 //ProgramWarning.message("could not read ZIP file: " + file); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
218 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
219 return null; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
220 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
221 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
222 @Override |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
223 public File file() { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
224 return file; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
225 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
226 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
227 @Override |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
228 public boolean isArchive() { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
229 return true; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
230 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
231 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
232 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
233 /** |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
234 * Gets the ordered entries from which this classpath is composed. |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
235 * |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
236 * @return a sequence of {@code Entry} objects |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
237 */ |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
238 public List<Entry> entries() { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
239 return entries; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
240 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
241 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
242 /** |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
243 * Creates a classpath {@link Entry} from a given file system path. |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
244 * |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
245 * @param path a file system path denoting a classpath entry |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
246 */ |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
247 public static Entry createEntry(String path) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
248 final File pathFile = new File(path); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
249 if (pathFile.isDirectory()) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
250 return new Directory(pathFile); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
251 } else if (path.endsWith(".zip") || path.endsWith(".jar")) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
252 if (pathFile.exists() && pathFile.isFile()) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
253 return new Archive(pathFile); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
254 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
255 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
256 //ProgramWarning.message("Class path entry is neither a directory nor a JAR file: " + path); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
257 return new PlainFile(pathFile); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
258 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
259 |
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260 /** |
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261 * Creates a new classpath from an array of classpath entries. |
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262 * |
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263 * @param paths an array of classpath entries |
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264 */ |
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265 public Classpath(String[] paths) { |
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266 final Entry[] entryArray = new Entry[paths.length]; |
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267 for (int i = 0; i < paths.length; ++i) { |
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268 final String path = paths[i]; |
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269 entryArray[i] = createEntry(path); |
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270 } |
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271 this.entries = Arrays.asList(entryArray); |
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272 } |
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273 |
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274 /** |
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275 * Creates a new classpath from a sequence of classpath entries. |
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276 * |
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277 * @param paths a sequence of classpath entries |
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278 */ |
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279 public Classpath(List<Entry> entries) { |
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280 this.entries = entries; |
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281 } |
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282 |
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283 /** |
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284 * Creates a new classpath by parsing a string of classpath entries separated by the system dependent |
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285 * {@linkplain File#pathSeparator path separator}. |
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286 * |
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287 * @param paths a string of classpath entries separated by ':' or ';' |
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288 */ |
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289 public Classpath(String paths) { |
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290 this(paths.split(File.pathSeparator)); |
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291 } |
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292 |
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293 /** |
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294 * Gets the classpath derived from the value of the {@code "java.ext.dirs"} system property. |
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295 * |
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296 * @see "http://java.sun.com/javase/6/docs/technotes/guides/extensions/extensions.html" |
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297 */ |
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298 private static String extensionClasspath() { |
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299 final String extDirs = System.getProperty("java.ext.dirs"); |
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300 if (extDirs != null) { |
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301 final StringBuilder buf = new StringBuilder(); |
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302 for (String extDirPath : extDirs.split(File.pathSeparator)) { |
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303 final File extDir = new File(extDirPath); |
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304 if (extDir.isDirectory()) { |
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305 for (File file : extDir.listFiles()) { |
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306 if (file.isDirectory() || |
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307 (file.isFile() && (file.getName().endsWith(".jar") || file.getName().endsWith(".zip")))) { |
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308 if (buf.length() != 0) { |
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309 buf.append(File.pathSeparatorChar); |
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310 } |
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311 buf.append(file.getAbsolutePath()); |
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312 } |
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313 } |
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314 } else { |
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315 // Ignore non-directory |
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316 } |
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317 } |
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318 if (buf.length() != 0) { |
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319 buf.append(File.pathSeparatorChar); |
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320 return buf.toString(); |
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321 } |
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322 } |
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323 return ""; |
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324 } |
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325 |
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326 /** |
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327 * Gets a classpath corresponding to the class search order used by the application class loader. |
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328 */ |
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329 public static Classpath fromSystem() { |
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330 final String value = System.getProperty("sun.boot.class.path") + File.pathSeparator + extensionClasspath() + System.getProperty("java.class.path"); |
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331 return new Classpath(value.split(File.pathSeparator)); |
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332 } |
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333 |
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334 /** |
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335 * Gets a classpath corresponding to the class search order used by the boot class loader. |
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336 * */ |
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337 public static Classpath bootClassPath() { |
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338 return bootClassPath(null); |
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339 } |
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340 |
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341 /** |
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342 * Gets a classpath corresponding to the class search order used by the boot class loader. |
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343 * @param extraPath an additional path to append to the system property or null if none |
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344 */ |
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345 public static Classpath bootClassPath(String extraPath) { |
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346 String value = System.getProperty("sun.boot.class.path"); |
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347 if (value == null) { |
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348 return EMPTY; |
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349 } |
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350 if (extraPath != null) { |
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351 value = value + File.pathSeparator + extraPath; |
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352 } |
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353 return new Classpath(value.split(File.pathSeparator)); |
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354 } |
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355 |
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356 /** |
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357 * Gets a new classpath obtained by prepending a given classpath to this class classpath. |
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358 * |
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359 * @param classpath the classpath to prepend to this classpath |
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360 * @return the result of prepending {@code classpath} to this classpath |
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361 */ |
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362 public Classpath prepend(Classpath classpath) { |
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363 ArrayList<Entry> entries = new ArrayList<Entry>(this.entries.size() + classpath.entries.size()); |
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364 entries.addAll(classpath.entries); |
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365 entries.addAll(this.entries); |
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366 return new Classpath(entries); |
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367 } |
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368 |
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369 /** |
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370 * Gets a new classpath obtained by prepending a given classpath to this class classpath. |
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371 * |
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372 * @param classpath the classpath to prepend to this classpath |
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373 * @return the result of prepending {@code classpath} to this classpath |
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374 */ |
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375 public Classpath prepend(String path) { |
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376 ArrayList<Entry> entries = new ArrayList<Entry>(this.entries.size()); |
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377 entries.add(createEntry(path)); |
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378 entries.addAll(this.entries); |
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379 return new Classpath(entries); |
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|
380 } |
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381 |
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|
382 /** |
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|
383 * Searches for a class file denoted by a given class name on this classpath and returns its contents in a byte array if |
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384 * found. Any IO exception that occurs when reading is silently ignored. |
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385 * |
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386 * @param className a fully qualified class name (e.g. "java.lang.Class") |
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387 * @return the contents of the file available on the classpath whose name is computed as |
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parents:
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388 * {@code className.replace('.', '/')}. If no such file is available on this class path or if |
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389 * reading the file produces an IO exception, then null is returned. |
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parents:
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390 */ |
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parents:
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391 public ClasspathFile readClassFile(String className) { |
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392 return readFile(className, ".class"); |
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393 } |
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394 |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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395 /** |
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parents:
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396 * Searches for a file denoted by a given class name on this classpath and returns its contents in a byte array if |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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397 * found. Any IO exception that occurs when reading is silently ignored. |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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398 * |
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parents:
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399 * @param className a fully qualified class name (e.g. "java.lang.Class") |
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400 * @param extension a file extension |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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401 * @return the contents of the file available on the classpath whose name is computed as |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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402 * {@code className.replace('.', '/') + extension}. If no such file is available on this class path or if |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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403 * reading the file produces an IO exception, then null is returned. |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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404 */ |
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parents:
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405 public ClasspathFile readFile(String className, String extension) { |
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406 final String path = className.replace('.', '/') + extension; |
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parents:
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407 for (Entry entry : entries()) { |
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408 ClasspathFile classpathFile = entry.readFile(path); |
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409 if (classpathFile != null) { |
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410 return classpathFile; |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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411 } |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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412 } |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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413 return null; |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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414 } |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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415 |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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416 /** |
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parents:
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417 * Searches for an existing file corresponding to a directory entry in this classpath composed with a given path |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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418 * suffix. |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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419 * |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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420 * @param suffix a file path relative to a directory entry of this classpath |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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421 * @return a file corresponding to the {@linkplain File#File(File, String) composition} of the first directory entry |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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422 * of this classpath with {@code suffix} that denotes an existing file or null if so such file exists |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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423 */ |
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parents:
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424 public File findFile(String suffix) { |
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parents:
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425 for (Entry entry : entries()) { |
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426 if (entry instanceof Directory) { |
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parents:
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427 final File file = new File(((Directory) entry).directory, suffix); |
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428 if (file.exists()) { |
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parents:
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429 return file; |
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parents:
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430 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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|
431 } |
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parents:
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432 } |
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parents:
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433 return null; |
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parents:
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|
434 } |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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|
435 |
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parents:
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436 public static byte[] readZipEntry(ZipFile zipFile, ZipEntry zipEntry) throws IOException { |
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437 final byte[] bytes = new byte[(int) zipEntry.getSize()]; |
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438 final InputStream zipStream = new BufferedInputStream(zipFile.getInputStream(zipEntry), bytes.length); |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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439 try { |
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440 int offset = 0; |
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parents:
diff
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441 while (offset < bytes.length) { |
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parents:
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442 final int n = zipStream.read(bytes, offset, bytes.length - offset); |
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443 if (n <= 0) { |
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parents:
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444 //ProgramWarning.message("truncated ZIP file: " + zipFile); |
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parents:
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445 } |
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parents:
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446 offset += n; |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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|
447 } |
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parents:
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|
448 } finally { |
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parents:
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|
449 zipStream.close(); |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
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|
450 } |
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parents:
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451 return bytes; |
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parents:
diff
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|
452 } |
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parents:
diff
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|
453 |
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parents:
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|
454 @Override |
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parents:
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455 public String toString() { |
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parents:
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|
456 if (entries == null || entries.isEmpty()) { |
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|
457 return ""; |
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parents:
diff
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|
458 } |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
459 String s = entries.toString().replace(", ", File.pathSeparator); |
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parents:
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|
460 return s.substring(1, s.length() - 1); |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
461 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
462 |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
463 /** |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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|
464 * Converts this object to a String array with one array element for each classpath entry. |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
465 * |
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parents:
diff
changeset
|
466 * @return the newly created String array with one element per classpath entry |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
467 */ |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
468 public String[] toStringArray() { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
469 final String[] result = new String[entries().size()]; |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
470 int z = 0; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
471 for (Classpath.Entry e : entries()) { |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
472 result[z] = e.path(); |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
473 z++; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
474 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
475 return result; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
476 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
477 } |