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1 /* ==================================================================== 2 * The Apache Software License, Version 1.1 3 * 4 * Copyright (c) 2000 The Apache Software Foundation. All rights 5 * reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 19 * 3. The end-user documentation included with the redistribution, 20 * if any, must include the following acknowledgment: 21 * "This product includes software developed by the 22 * Apache Software Foundation (http://www.apache.org/)." 23 * Alternately, this acknowledgment may appear in the software itself, 24 * if and wherever such third-party acknowledgments normally appear. 25 * 26 * 4. The names "Apache" and "Apache Software Foundation" must 27 * not be used to endorse or promote products derived from this 28 * software without prior written permission. For written 29 * permission, please contact apache@apache.org. 30 * 31 * 5. Products derived from this software may not be called "Apache", 32 * nor may "Apache" appear in their name, without prior written 33 * permission of the Apache Software Foundation. 34 * 35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 46 * SUCH DAMAGE. 47 * ==================================================================== 48 * 49 * This software consists of voluntary contributions made by many 50 * individuals on behalf of the Apache Software Foundation. For more 51 * information on the Apache Software Foundation, please see 52 * <http://www.apache.org/>. 53 * 54 * Portions of this software are based upon public domain software 55 * originally written at the National Center for Supercomputing Applications, 56 * University of Illinois, Urbana-Champaign. 57 */ 58 package com.bonevich.eclipse.logging.pathvars; 59 60 import com.bonevich.eclipse.logging.LoggingPlugin; 61 62 import org.eclipse.core.resources.IPathVariableManager; 63 import org.eclipse.core.resources.IWorkspace; 64 import org.eclipse.core.runtime.IPath; 65 import org.eclipse.core.runtime.Path; 66 import org.eclipse.core.runtime.Platform; 67 import org.eclipse.jdt.core.ClasspathVariableInitializer; 68 import org.eclipse.jdt.core.JavaCore; 69 import org.eclipse.jdt.core.JavaModelException; 70 71 import java.io.IOException; 72 import java.net.URL; 73 74 /*** 75 * Base class for the Loggin Plug-in classpath variable initializers. Provides 76 * the basic implementation for adding a plug-in path-relative logging library. 77 * Subclasses need only supply the path to the library via {@link #getLibraryPath}. 78 * @author jbonevic 79 */ 80 public abstract class LoggingClasspathVariableInitializer 81 extends ClasspathVariableInitializer 82 { 83 84 public LoggingClasspathVariableInitializer() 85 { 86 super(); 87 } 88 89 public void initialize(String variableName) 90 { 91 IWorkspace workspace = LoggingPlugin.getWorkspace(); 92 IPathVariableManager pathManager = workspace.getPathVariableManager(); 93 if (! pathManager.isDefined(variableName)) 94 { 95 try 96 { 97 URL jarURL = new URL( 98 LoggingPlugin.getPlugin().getDescriptor().getInstallURL(), 99 getLibraryPath() 100 ); 101 URL localURL = Platform.asLocalURL(jarURL); 102 IPath path = new Path(localURL.getFile()); 103 JavaCore.setClasspathVariable(variableName, path, null); 104 } 105 catch (IOException e) 106 { 107 e.printStackTrace(); 108 } 109 catch (JavaModelException e) 110 { 111 e.printStackTrace(); 112 } 113 } 114 } 115 116 protected abstract String getLibraryPath(); 117 118 }

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