analysis/org.eclipse.tracecompass.analysis.graph.core.tests/src/org/eclipse/tracecompass/analysis/graph/core/tests/Activator.java

   1 /*******************************************************************************
   2  * Copyright (c) 2015 École Polytechnique de Montréal
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Geneviève Bastien - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.tracecompass.analysis.graph.core.tests;
  14
  15 import java.io.IOException;
  16 import java.net.URL;
  17
  18 import org.eclipse.core.runtime.FileLocator;
  19 import org.eclipse.core.runtime.IPath;
  20 import org.eclipse.core.runtime.Path;
  21 import org.eclipse.core.runtime.Plugin;
  22 import org.eclipse.jdt.annotation.NonNull;
  23 import org.osgi.framework.BundleContext;
  24
  25 /**
  26  * Activator for this plugin
  27  *
  28  * @author Geneviève Bastien
  29  */
  30 public class Activator extends Plugin {
  31     // ------------------------------------------------------------------------
  32     // Attributes
  33     // ------------------------------------------------------------------------
  34
  35     /**
  36      * The plug-in ID
  37      */
  38     public static final String PLUGIN_ID = "org.eclipse.tracecompass.analysis.graph.core.tests"; //$NON-NLS-1$
  39
  40     /**
  41      * The shared instance
  42      */
  43     private static Activator PLUGIN;
  44
  45     // ------------------------------------------------------------------------
  46     // Constructors
  47     // ------------------------------------------------------------------------
  48
  49     /**
  50      * The constructor
  51      */
  52     public Activator() {
  53     }
  54
  55     // ------------------------------------------------------------------------
  56     // Accessors
  57     // ------------------------------------------------------------------------
  58
  59     /**
  60      * Returns the shared instance
  61      *
  62      * @return the shared instance
  63      */
  64     public static Activator getDefault() {
  65         return PLUGIN;
  66     }
  67
  68     // ------------------------------------------------------------------------
  69     // Operators
  70     // ------------------------------------------------------------------------
  71
  72     @Override
  73     public void start(BundleContext context) throws Exception {
  74         super.start(context);
  75         PLUGIN = this;
  76     }
  77
  78     @Override
  79     public void stop(BundleContext context) throws Exception {
  80         PLUGIN = null;
  81         super.stop(context);
  82     }
  83
  84     /**
  85      * Return a path to a file relative to this plugin's base directory
  86      *
  87      * @param relativePath
  88      *            The path relative to the plugin's root directory
  89      * @return The path corresponding to the relative path in parameter
  90      */
  91     public static @NonNull IPath getAbsoluteFilePath(String relativePath) {
  92         Activator plugin = Activator.getDefault();
  93         if (plugin == null) {
  94             /*
  95              * Shouldn't happen but at least throw something to get the test to
  96              * fail early
  97              */
  98             throw new IllegalStateException();
  99         }
 100         URL location = FileLocator.find(plugin.getBundle(), new Path(relativePath), null);
 101         try {
 102             return new Path(FileLocator.toFileURL(location).getPath());
 103         } catch (IOException e) {
 104             throw new IllegalStateException();
 105         }
 106     }
 107 }
 108