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