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annotate org.eclipse.core.jobs/src/org/eclipse/core/internal/jobs/JobOSGiUtils.d @ 77:af948d4bbf8c

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Impls for core.jobs
author Frank Benoit <benoit@tionex.de>
date Mon, 13 Apr 2009 13:58:00 +0200
parents bc29606a740c
children
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1 /*******************************************************************************
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2 * Copyright (c) 2005, 2007 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.core.internal.jobs.JobOSGiUtils;
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14
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15 import java.lang.all;
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16 import java.util.Set;
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17
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18 // import org.osgi.framework.Bundle;
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19 // import org.osgi.framework.BundleContext;
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20 // import org.osgi.service.packageadmin.PackageAdmin;
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21 // import org.osgi.util.tracker.ServiceTracker;
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22
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23 import org.eclipse.core.runtime.jobs.IJobManager;
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24 // import org.eclipse.osgi.service.debug.DebugOptions;
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25
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26 /**
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27 * The class contains a set of helper methods for the runtime Jobs plugin.
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28 * The following utility methods are supplied:
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29 * - provides access to debug options
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30 * - provides some bundle discovery functionality
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31 *
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32 * The closeServices() method should be called before the plugin is stopped.
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33 *
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34 * @since org.eclipse.core.jobs 3.2
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35 */
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36 class JobOSGiUtils {
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37 // private ServiceTracker debugTracker = null;
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38 // private ServiceTracker bundleTracker = null;
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39
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40 private static /+final+/ JobOSGiUtils singleton;
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41
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42 /**
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43 * Accessor for the singleton instance
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44 * @return The JobOSGiUtils instance
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45 */
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46 public static synchronized JobOSGiUtils getDefault() {
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47 if( singleton is null ){
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48 singleton = new JobOSGiUtils();
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49 }
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50 return singleton;
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51 }
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52
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53 /**
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54 * Private constructor to block instance creation.
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55 */
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56 private this() {
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57 // super();
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58 }
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59
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60 void openServices() {
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61 //FIXME implMissing(__FILE__,__LINE__);
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62 // BundleContext context = JobActivator.getContext();
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63 // if (context is null) {
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64 // if (JobManager.DEBUG)
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65 // JobMessages.message("JobsOSGiUtils called before plugin started"); //$NON-NLS-1$
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66 // return;
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67 // }
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68 //
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69 // debugTracker = new ServiceTracker(context, DebugOptions.class.getName(), null);
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70 // debugTracker.open();
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71 //
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72 // bundleTracker = new ServiceTracker(context, PackageAdmin.class.getName(), null);
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73 // bundleTracker.open();
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74 }
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75
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76 void closeServices() {
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77 //FIXME implMissing(__FILE__,__LINE__);
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78 // if (debugTracker !is null) {
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79 // debugTracker.close();
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80 // debugTracker = null;
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81 // }
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82 // if (bundleTracker !is null) {
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83 // bundleTracker.close();
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84 // bundleTracker = null;
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85 // }
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86 }
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87
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88 public bool getBooleanDebugOption(String option, bool defaultValue) {
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89 //FIXME implMissing(__FILE__,__LINE__);
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90 return false;
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91 // if (debugTracker is null) {
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92 // if (JobManager.DEBUG)
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93 // JobMessages.message("Debug tracker is not set"); //$NON-NLS-1$
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94 // return defaultValue;
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95 // }
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96 // DebugOptions options = (DebugOptions) debugTracker.getService();
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97 // if (options !is null) {
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98 // String value = options.getOption(option);
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99 // if (value !is null)
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100 // return value.equalsIgnoreCase("true"); //$NON-NLS-1$
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101 // }
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102 // return defaultValue;
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103 }
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104
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105 /**
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106 * Returns the bundle id of the bundle that contains the provided object, or
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107 * <code>null</code> if the bundle could not be determined.
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108 */
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109 public String getBundleId(Object object) {
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110 //FIXME implMissing(__FILE__,__LINE__);
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111 // if (bundleTracker is null) {
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112 // if (JobManager.DEBUG)
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113 // JobMessages.message("Bundle tracker is not set"); //$NON-NLS-1$
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114 // return null;
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115 // }
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116 // PackageAdmin packageAdmin = (PackageAdmin) bundleTracker.getService();
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117 // if (object is null)
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118 // return null;
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119 // if (packageAdmin is null)
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120 // return null;
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121 // Bundle source = packageAdmin.getBundle(object.getClass());
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122 // if (source !is null && source.getSymbolicName() !is null)
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123 // return source.getSymbolicName();
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124 return null;
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125 }
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126
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127 /**
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128 * Calculates whether the job plugin should set worker threads to be daemon
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129 * threads. When workers are daemon threads, the job plugin does not need
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130 * to be explicitly shut down because the VM can exit while workers are still
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131 * alive.
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132 * @return <code>true</code> if all worker threads should be daemon threads,
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133 * and <code>false</code> otherwise.
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134 */
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135 bool useDaemonThreads() {
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136 //FIXME implMissing(__FILE__,__LINE__);
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137 return true;
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138 // BundleContext context = JobActivator.getContext();
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139 // if (context is null) {
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140 // //we are running stand-alone, so consult global system property
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141 // String value = System.getProperty(IJobManager.PROP_USE_DAEMON_THREADS);
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142 // //default to use daemon threads if property is absent
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143 // if (value is null)
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144 // return true;
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145 // return "true".equalsIgnoreCase(value); //$NON-NLS-1$
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146 // }
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147 // //only use daemon threads if the property is defined
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148 // final String value = context.getProperty(IJobManager.PROP_USE_DAEMON_THREADS);
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149 // //if value is absent, don't use daemon threads to maintain legacy behaviour
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150 // if (value is null)
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151 // return false;
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152 // return "true".equalsIgnoreCase(value); //$NON-NLS-1$
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153 }
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154 }