KernelControllerContextActions


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14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
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19  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21  */
22  package org.jboss.kernel.plugins.dependency;
23  
24  import java.util.HashMap  ;
25  import java.util.Map  ;
26  
27  import org.jboss.dependency.plugins.AbstractControllerContextActions;
28  import org.jboss.dependency.plugins.spi.action.ControllerContextAction;
29  import org.jboss.dependency.spi.ControllerState;
30  
31  /**
32   * The KernelControllerActions.<p>
33   * 
34   * When there is a security manager and we are using a native context
35   * we switch to our privileges to run the actions and switch back to callout to beans.<p>
36   * 
37   * Otherwise, we just use the caller's privileges.
38   * 
39   * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
40   * @version $Revision: 46281 $
41   */
42  public class KernelControllerContextActions extends AbstractControllerContextActions
43  {
44     /** The single instance */
45     private static KernelControllerContextActions instance;
46  
47     /** Actions without instantiate */
48     private static KernelControllerContextActions noInstantiate;
49     
50     /**
51      * Get the instance
52      * 
53      * @return the actions
54      */
55     public static KernelControllerContextActions getInstance()
56     {
57        if (instance == null)
58        {
59           Map  <ControllerState, ControllerContextAction> actions = new HashMap  <ControllerState, ControllerContextAction>();
60           actions.put(ControllerState.DESCRIBED, new DescribeAction());
61           actions.put(ControllerState.INSTANTIATED, new InstantiateAction());
62           actions.put(ControllerState.CONFIGURED, new ConfigureAction());
63           actions.put(ControllerState.CREATE, new CreateDestroyLifecycleAction());
64           actions.put(ControllerState.START, new StartStopLifecycleAction());
65           actions.put(ControllerState.INSTALLED, new InstallAction());
66           instance = new KernelControllerContextActions(actions);
67        }
68        return instance;
69     }
70     
71     /**
72      * Get no instantiate actions
73      * 
74      * @return the actions
75      */
76     public static KernelControllerContextActions getNoInstantiate()
77     {
78        if (noInstantiate == null)
79        {
80           Map  <ControllerState, ControllerContextAction> actions = new HashMap  <ControllerState, ControllerContextAction>();
81           actions.put(ControllerState.DESCRIBED, new DescribeAction());
82           actions.put(ControllerState.CONFIGURED, new ConfigureAction());
83           actions.put(ControllerState.CREATE, new CreateDestroyLifecycleAction());
84           actions.put(ControllerState.START, new StartStopLifecycleAction());
85           actions.put(ControllerState.INSTALLED, new InstallAction());
86           noInstantiate = new KernelControllerContextActions(actions);
87        }
88        return noInstantiate;
89     }
90     
91     /**
92      * Create a new KernelControllerContextActions.
93      * 
94      * @param actions the actions
95      */
96     protected KernelControllerContextActions(Map  <ControllerState, ControllerContextAction> actions)
97     {
98        super(actions);
99     }
100 }
101
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