eu.etaxonomy.taxeditor.application/src/main/java/eu/etaxonomy/taxeditor/TaxonomicEditorPlugin.java

   1 package eu.etaxonomy.taxeditor;
   2
   3 import org.apache.log4j.Logger;
   4 import org.eclipse.equinox.p2.core.IProvisioningAgent;
   5 import org.eclipse.equinox.p2.engine.IProfileRegistry;
   6 import org.eclipse.equinox.p2.operations.ProvisioningSession;
   7 import org.eclipse.equinox.p2.ui.Policy;
   8 import org.eclipse.equinox.p2.ui.ProvisioningUI;
   9 import org.eclipse.ui.plugin.AbstractUIPlugin;
  10 import org.osgi.framework.Bundle;
  11 import org.osgi.framework.BundleContext;
  12 import org.osgi.framework.ServiceReference;
  13 import org.osgi.framework.ServiceRegistration;
  14 import org.osgi.service.packageadmin.PackageAdmin;
  15
  16 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  17
  18 /**
  19  * The activator class controls the plug-in life cycle
  20  *
  21  * @author n.hoffmann
  22  */
  23 public class TaxonomicEditorPlugin extends AbstractUIPlugin {
  24
  25         private static final Logger logger = Logger.getLogger(TaxonomicEditorPlugin.class);
  26
  27         // The plug-in ID
  28         /** Constant <code>PLUGIN_ID="eu.etaxonomy.taxeditor.application"</code> */
  29         public static final String PLUGIN_ID = "eu.etaxonomy.taxeditor.application";
  30
  31         // The shared instance
  32         private static TaxonomicEditorPlugin plugin;
  33
  34         private PackageAdmin packageAdmin;
  35
  36         private ServiceReference<?> packageAdminRef;
  37
  38         /** Constant <code>bundleContext</code> */
  39         protected static BundleContext bundleContext;
  40
  41
  42         private ServiceRegistration<?> policyRegistration;
  43
  44         private ProvisioningSession session;
  45         private ProvisioningUI ui;
  46
  47 //      private CloudPolicy policy;
  48
  49         /**
  50          * The constructor
  51          */
  52         public TaxonomicEditorPlugin() {
  53         }
  54
  55         @Override
  56     public void start(BundleContext context) throws Exception {
  57                 super.start(context);
  58
  59                 plugin = this;
  60                 bundleContext = context;
  61
  62                 packageAdminRef = bundleContext.getServiceReference(PackageAdmin.class.getName());
  63                 packageAdmin = (PackageAdmin) bundleContext.getService(packageAdminRef);
  64
  65                 logger.debug("Taxonomic Editor started.");
  66         }
  67
  68         private Bundle getBundle(String symbolicName) {
  69                 if (packageAdmin == null) {
  70             return null;
  71         }
  72                 Bundle[] bundles = packageAdmin.getBundles(symbolicName, null);
  73                 if (bundles == null) {
  74             return null;
  75         }
  76                 // Return the first bundle that is not installed or uninstalled
  77                 for (int i = 0; i < bundles.length; i++) {
  78                         if ((bundles[i].getState() & (Bundle.INSTALLED | Bundle.UNINSTALLED)) == 0) {
  79                                 return bundles[i];
  80                         }
  81                 }
  82                 return null;
  83         }
  84
  85         @Override
  86         public void stop(BundleContext context) throws Exception {
  87             plugin = null;
  88             super.stop(context);
  89             MessagingUtils.info("Taxonomic Editor stopped.");
  90         }
  91
  92         /**
  93          * Returns the shared instance
  94          *
  95          * @return the shared instance
  96          */
  97         public static TaxonomicEditorPlugin getDefault() {
  98             return plugin;
  99         }
 100
 101         public static BundleContext getContext() {
 102             return bundleContext;
 103         }
 104
 105         public ProvisioningUI getProvisioningUI() {
 106
 107             if (ui == null) {
 108                 ServiceReference<?> reference = bundleContext.getServiceReference(IProvisioningAgent.SERVICE_NAME);
 109                 IProvisioningAgent agent = (IProvisioningAgent) bundleContext.getService(reference);
 110
 111                 session = new ProvisioningSession(agent);
 112
 113                 Policy policy = null;// = (Policy) ServiceHelper.getService(ProvUIActivator.getContext(), Policy.class.getName());
 114                 if (policy == null) {
 115                     policy = new Policy();
 116
 117                 }
 118                 ui = new ProvisioningUI(session, IProfileRegistry.SELF, policy);
 119             }
 120             return ui;
 121         }
 122 }