lttng/org.eclipse.tracecompass.lttng2.common.core.tests/src/org/eclipse/tracecompass/lttng2/common/core/tests/Activator.java

   1 /*******************************************************************************
   2  * Copyright (c) 2016 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
  10 package org.eclipse.tracecompass.lttng2.common.core.tests;
  11
  12 import java.io.IOException;
  13 import java.net.URL;
  14
  15 import org.eclipse.core.runtime.FileLocator;
  16 import org.eclipse.core.runtime.IPath;
  17 import org.eclipse.core.runtime.Path;
  18 import org.eclipse.core.runtime.Plugin;
  19 import org.osgi.framework.BundleContext;
  20
  21 /**
  22  * Activator for the lttng2.common.core.tests plugin
  23  *
  24  * @author Geneviève Bastien
  25  */
  26 public class Activator extends Plugin {
  27     // ------------------------------------------------------------------------
  28     // Attributes
  29     // ------------------------------------------------------------------------
  30
  31     /**
  32      * The plug-in ID
  33      */
  34     public static final String PLUGIN_ID = "org.eclipse.tracecompass.lttng2.common.core.tests"; //$NON-NLS-1$
  35
  36     /**
  37      * The shared instance
  38      */
  39     private static Activator PLUGIN;
  40
  41     // ------------------------------------------------------------------------
  42     // Constructors
  43     // ------------------------------------------------------------------------
  44
  45     /**
  46      * The constructor
  47      */
  48     public Activator() {
  49     }
  50
  51     // ------------------------------------------------------------------------
  52     // Accessors
  53     // ------------------------------------------------------------------------
  54
  55     /**
  56      * Returns the shared instance
  57      *
  58      * @return the shared instance
  59      */
  60     public static Activator getDefault() {
  61         return PLUGIN;
  62     }
  63
  64     // ------------------------------------------------------------------------
  65     // Operators
  66     // ------------------------------------------------------------------------
  67
  68     @Override
  69     public void start(BundleContext context) throws Exception {
  70         super.start(context);
  71         PLUGIN = this;
  72     }
  73
  74     @Override
  75     public void stop(BundleContext context) throws Exception {
  76         PLUGIN = null;
  77         super.stop(context);
  78     }
  79
  80     /**
  81      * Return a path to a file relative to this plugin's base directory
  82      *
  83      * @param relativePath
  84      *            The path relative to the plugin's root directory
  85      * @return The path corresponding to the relative path in parameter
  86      */
  87     public static IPath getAbsoluteFilePath(String relativePath) {
  88         Activator plugin = Activator.getDefault();
  89         if (plugin == null) {
  90             /*
  91              * Shouldn't happen but at least throw something to get the test to
  92              * fail early
  93              */
  94             throw new IllegalStateException();
  95         }
  96         URL location = FileLocator.find(plugin.getBundle(), new Path(relativePath), null);
  97         try {
  98             return new Path(FileLocator.toFileURL(location).getPath());
  99         } catch (IOException e) {
 100             throw new IllegalStateException();
 101         }
 102     }
 103 }