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1
36 package org.ungoverned.oscar;
37
38 import java.security.AccessController  ;
39 import java.util.ArrayList ;
40 import java.util.List ;
41
42 import org.osgi.framework.AdminPermission;
43 import org.osgi.framework.Bundle;
44 import org.osgi.service.startlevel.StartLevel;
45
46
52 public class StartLevelImpl implements StartLevel, Runnable
53 {
54 private Oscar m_oscar = null;
55 private List m_requestList = null;
56 private static AdminPermission m_adminPerm = new AdminPermission();
58
59 public StartLevelImpl(Oscar oscar)
60 {
61 m_oscar = oscar;
62 m_requestList = new ArrayList ();
63
64 Thread t = new Thread (this, "OscarStartLevel");
66 t.setDaemon(true);
67 t.start();
68 }
69
70
73 public int getStartLevel()
74 {
75 return m_oscar.getStartLevel();
76 }
77
78
81 public void setStartLevel(int startlevel)
82 {
83 if (System.getSecurityManager() != null)
84 {
85 AccessController.checkPermission(m_adminPerm);
86 }
87 else if (startlevel <= 0)
88 {
89 throw new IllegalArgumentException (
90 "Start level must be greater than zero.");
91 }
92 synchronized (m_requestList)
93 {
94 m_requestList.add(new Integer (startlevel));
95 m_requestList.notifyAll();
96 }
97 }
98
99
102 public int getBundleStartLevel(Bundle bundle)
103 {
104 return m_oscar.getBundleStartLevel(bundle);
105 }
106
107
110 public void setBundleStartLevel(Bundle bundle, int startlevel)
111 {
112 m_oscar.setBundleStartLevel(bundle, startlevel);
113 }
114
115
118 public int getInitialBundleStartLevel()
119 {
120 return m_oscar.getInitialBundleStartLevel();
121 }
122
123
126 public void setInitialBundleStartLevel(int startlevel)
127 {
128 m_oscar.setInitialBundleStartLevel(startlevel);
129 }
130
131
134 public boolean isBundlePersistentlyStarted(Bundle bundle)
135 {
136 return m_oscar.isBundlePersistentlyStarted(bundle);
137 }
138
139 public void run()
140 {
141 int startLevel = 0;
142
143 while (true)
146 {
147 synchronized (m_requestList)
148 {
149 while (m_requestList.size() == 0)
151 {
152 try {
153 m_requestList.wait();
154 } catch (InterruptedException ex) {
155 }
156 }
157
158 startLevel = ((Integer ) m_requestList.remove(0)).intValue();
160 }
161
162 m_oscar.setStartLevelInternal(startLevel);
164 }
165 }
166 }
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