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.ui.plugin.AbstractUIPlugin;
   5 import org.osgi.framework.Bundle;
   6 import org.osgi.framework.BundleContext;
   7 import org.osgi.framework.ServiceReference;
   8 import org.osgi.framework.ServiceRegistration;
   9 import org.osgi.service.packageadmin.PackageAdmin;
  10
  11 /**
  12  * The activator class controls the plug-in life cycle
  13  */
  14 public class TaxonomicEditorPlugin extends AbstractUIPlugin {
  15         private static final Logger logger = Logger
  16                         .getLogger(TaxonomicEditorPlugin.class);
  17
  18         // The plug-in ID
  19         public static final String PLUGIN_ID = "eu.etaxonomy.taxeditor.application";
  20
  21         // The shared instance
  22         private static TaxonomicEditorPlugin plugin;
  23
  24         private PackageAdmin packageAdmin;
  25
  26         private ServiceReference packageAdminRef;
  27
  28         protected static BundleContext bundleContext;
  29
  30
  31         private ServiceRegistration policyRegistration;
  32
  33 //      private CloudPolicy policy;
  34
  35         /**
  36          * The constructor
  37          */
  38         public TaxonomicEditorPlugin() {
  39         }
  40
  41         /*
  42          * (non-Javadoc)
  43          * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
  44          */
  45         public void start(BundleContext context) throws Exception {
  46                 super.start(context);
  47
  48                 plugin = this;
  49                 bundleContext = context;
  50
  51                 packageAdminRef = bundleContext.getServiceReference(PackageAdmin.class.getName());
  52                 packageAdmin = (PackageAdmin) bundleContext.getService(packageAdminRef);
  53
  54                 logger.debug("Taxonomic Editor started.");
  55         }
  56
  57         private Bundle getBundle(String symbolicName) {
  58                 if (packageAdmin == null)
  59                         return null;
  60                 Bundle[] bundles = packageAdmin.getBundles(symbolicName, null);
  61                 if (bundles == null)
  62                         return null;
  63                 // Return the first bundle that is not installed or uninstalled
  64                 for (int i = 0; i < bundles.length; i++) {
  65                         if ((bundles[i].getState() & (Bundle.INSTALLED | Bundle.UNINSTALLED)) == 0) {
  66                                 return bundles[i];
  67                         }
  68                 }
  69                 return null;
  70         }
  71
  72         /*
  73          * (non-Javadoc)
  74          * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
  75          */
  76         public void stop(BundleContext context) throws Exception {
  77                 plugin = null;
  78                 super.stop(context);
  79                 ApplicationUtil.info("Taxonomic Editor stopped.");
  80         }
  81
  82         /**
  83          * Returns the shared instance
  84          *
  85          * @return the shared instance
  86          */
  87         public static TaxonomicEditorPlugin getDefault() {
  88                 return plugin;
  89         }
  90
  91
  92
  93 }