001: /*
002: The contents of this file are subject to the Common Public Attribution License
003: Version 1.0 (the "License"); you may not use this file except in compliance with
004: the License. You may obtain a copy of the License at
005: http://www.projity.com/license . The License is based on the Mozilla Public
006: License Version 1.1 but Sections 14 and 15 have been added to cover use of
007: software over a computer network and provide for limited attribution for the
008: Original Developer. In addition, Exhibit A has been modified to be consistent
009: with Exhibit B.
010:
011: Software distributed under the License is distributed on an "AS IS" basis,
012: WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
013: specific language governing rights and limitations under the License. The
014: Original Code is OpenProj. The Original Developer is the Initial Developer and
015: is Projity, Inc. All portions of the code written by Projity are Copyright (c)
016: 2006, 2007. All Rights Reserved. Contributors Projity, Inc.
017:
018: Alternatively, the contents of this file may be used under the terms of the
019: Projity End-User License Agreeement (the Projity License), in which case the
020: provisions of the Projity License are applicable instead of those above. If you
021: wish to allow use of your version of this file only under the terms of the
022: Projity License and not to allow others to use your version of this file under
023: the CPAL, indicate your decision by deleting the provisions above and replace
024: them with the notice and other provisions required by the Projity License. If
025: you do not delete the provisions above, a recipient may use your version of this
026: file under either the CPAL or the Projity License.
027:
028: [NOTE: The text of this license may differ slightly from the text of the notices
029: in Exhibits A and B of the license at http://www.projity.com/license. You should
030: use the latest text at http://www.projity.com/license for your modifications.
031: You may not remove this license text from the source files.]
032:
033: Attribution Information: Attribution Copyright Notice: Copyright 2006, 2007
034: Projity, Inc. Attribution Phrase (not exceeding 10 words): Powered by OpenProj,
035: an open source solution from Projity. Attribution URL: http://www.projity.com
036: Graphic Image as provided in the Covered Code as file: openproj_logo.png with
037: alternatives listed on http://www.projity.com/logo
038:
039: Display of Attribution Information is required in Larger Works which are defined
040: in the CPAL as a work which combines Covered Code or portions thereof with code
041: not governed by the terms of the CPAL. However, in addition to the other notice
042: obligations, all copies of the Covered Code in Executable and Source Code form
043: distributed must, as a form of attribution of the original author, include on
044: each user interface screen the "OpenProj" logo visible to all users. The
045: OpenProj logo should be located horizontally aligned with the menu bar and left
046: justified on the top left of the screen adjacent to the File menu. The logo
047: must be at least 100 x 25 pixels. When users click on the "OpenProj" logo it
048: must direct them back to http://www.projity.com.
049: */
050:
051: package com.projity.contrib;
052:
053: import java.lang.reflect.Method;
054: import java.util.Locale;
055: import java.util.ResourceBundle;
056: import java.util.StringTokenizer;
057:
058: import javax.swing.UIManager;
059:
060: public class ClassLoaderUtils {
061: protected static ClassLoaderTransformer transformer;
062:
063: public static ClassLoaderTransformer getTransformer() {
064: return transformer;
065: }
066:
067: public static void setTransformer(ClassLoaderTransformer transformer) {
068: ClassLoaderUtils.transformer = transformer;
069: }
070:
071: public static interface ClassLoaderTransformer {
072: public ClassLoader transform(ClassLoader c);
073: }
074:
075: public static ClassLoader getLocalClassLoader() {
076: return getModifiedClassLoader(ClassLoaderUtils.class
077: .getClassLoader());
078: }
079:
080: public static ClassLoader getModifiedClassLoader(
081: ClassLoader defaultClassLoader) {
082: if (transformer == null || !needModifiedClassloader())
083: return defaultClassLoader;
084: else
085: return transformer.transform(defaultClassLoader);
086: }
087:
088: public static ResourceBundle getBundle(String baseName) {
089: return ResourceBundle.getBundle(baseName, Locale.getDefault(),
090: getLocalClassLoader());
091: }
092:
093: public static Class forName(String name)
094: throws ClassNotFoundException {
095: return Class.forName(name, true, getLocalClassLoader());
096: }
097:
098: private static Method messageMethod;
099:
100: public static String getString(String key) {
101:
102: if (messageMethod == null) {
103: try {
104: Class mess = Class
105: .forName("com.projity.strings.Messages");
106: messageMethod = mess.getMethod("getString",
107: new Class[] { String.class });
108: } catch (Exception e) {
109: e.printStackTrace();
110: }
111: }
112: String value = null;
113: if (messageMethod != null) {
114: try {
115: value = (String) messageMethod.invoke(null,
116: new Object[] { key });
117: } catch (Exception x) {
118: x.printStackTrace();
119: }
120: } else {
121: System.out.println("null message method");
122: }
123: if (value == null)
124: value = UIManager.getString(key);
125: return value;
126: }
127:
128: private static boolean modifClassloader = false;
129: private static String javaVersion = null;
130:
131: /**
132: * Compares this version with the specified version for order. Returns a
133: * negative integer, zero, or a positive integer as this version is less
134: * than, equal to, or greater than the specified version.
135: */
136: public static int compareJavaVersionTo(String version) {
137: return compareJavaVersion(javaVersion, version);
138: }
139:
140: public static int compareJavaVersion(String version1,
141: String version2) {
142: StringTokenizer javaVersionTok1 = new StringTokenizer(version1,
143: ".");
144: StringTokenizer javaVersionTok2 = new StringTokenizer(version2,
145: ".");
146: while (javaVersionTok1.hasMoreTokens()
147: || javaVersionTok2.hasMoreTokens()) {
148: int v1 = -1;
149: try {
150: v1 = javaVersionTok1.hasMoreElements() ? Integer
151: .parseInt(javaVersionTok1.nextToken()) : 0;
152: } catch (NumberFormatException e) {
153: }
154: int v2 = -1;
155: try {
156: v2 = javaVersionTok2.hasMoreElements() ? Integer
157: .parseInt(javaVersionTok2.nextToken()) : 0;
158: } catch (NumberFormatException e) {
159: }
160: if (v1 == 0 && v2 == -1)
161: return -1;
162: else if (v1 == -1 && v2 == 0)
163: return 1;
164: if (v1 < v2)
165: return -1;
166: else if (v1 > v2)
167: return 1;
168: }
169: return 0;
170: }
171:
172: public static boolean needModifiedClassloader() {
173: if (javaVersion == null)
174: getJavaVersion(); //init
175: return modifClassloader;
176: }
177:
178: public static String getJavaVersion() {
179: if (javaVersion == null) {
180: javaVersion = System
181: .getProperty("java.specification.version");
182: modifClassloader = compareJavaVersionTo("1.6") < 0;
183: }
184: return javaVersion;
185: }
186: }
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