Home

Contribute

Source code


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171

/**
 * Copyright (c) 2004 - 2009 Eike Stepper (Berlin, Germany) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *    Eike Stepper - initial API and implementation
 */
package org.eclipse.net4j.util.om;

import org.eclipse.net4j.internal.util.bundle.AbstractBundle;
import org.eclipse.net4j.internal.util.bundle.OM;

import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;

/**
 * @author Eike Stepper
 */
public abstract class OSGiActivator implements BundleActivator
{
  private OMBundle omBundle;

  /**
   * @since 2.0
   */
  protected BundleContext bundleContext;

  public OSGiActivator(OMBundle omBundle)
  {
    this.omBundle = omBundle;
  }

  public final OMBundle getOMBundle()
  {
    return omBundle;
  }

  public final void start(BundleContext context) throws Exception
  {
    bundleContext = context;
    OSGiActivator.traceStart(context);
    if (omBundle == null)
    {
      throw new IllegalStateException("bundle == null"); //$NON-NLS-1$
    }

    try
    {
      omBundle.setBundleContext(context);
      ((AbstractBundle)omBundle).start();
      doStart();
    }
    catch (Error error)
    {
      omBundle.logger().error(error);
      throw error;
    }
    catch (Exception ex)
    {
      omBundle.logger().error(ex);
      throw ex;
    }
  }

  public final void stop(BundleContext context) throws Exception
  {
    OSGiActivator.traceStop(context);
    if (omBundle == null)
    {
      throw new IllegalStateException("bundle == null"); //$NON-NLS-1$
    }

    try
    {
      doStop();
      ((AbstractBundle)omBundle).stop();
      omBundle.setBundleContext(null);
    }
    catch (Error error)
    {
      omBundle.logger().error(error);
      throw error;
    }
    catch (Exception ex)
    {
      omBundle.logger().error(ex);
      throw ex;
    }
  }

  @Override
  public final boolean equals(Object obj)
  {
    return super.equals(obj);
  }

  @Override
  public final int hashCode()
  {
    return super.hashCode();
  }

  @Override
  public final String toString()
  {
    return super.toString();
  }

  @Override
  protected final Object clone() throws CloneNotSupportedException
  {
    return super.clone();
  }

  @Override
  protected final void finalize() throws Throwable
  {
    super.finalize();
  }

  /**
   * @since 2.0
   */
  protected void doStart() throws Exception
  {
  }

  /**
   * @since 2.0
   */
  protected void doStop() throws Exception
  {
  }

  /**
   * @since 2.0
   */
  public static void traceStart(BundleContext context)
  {
    try
    {
      if (OM.TRACER.isEnabled())
      {
        OM.TRACER.format("Starting bundle {0}", context.getBundle().getSymbolicName()); //$NON-NLS-1$
      }
    }
    catch (RuntimeException ignore)
    {
    }
  }

  /**
   * @since 2.0
   */
  public static void traceStop(BundleContext context)
  {
    try
    {
      if (OM.TRACER.isEnabled())
      {
        OM.TRACER.format("Stopping bundle {0}", context.getBundle().getSymbolicName()); //$NON-NLS-1$
      }
    }
    catch (RuntimeException ignore)
    {
    }
  }
}