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.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 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  12
  13 /**
  14  * The activator class controls the plug-in life cycle
  15  *
  16  * @author n.hoffmann
  17  * @version $Id: $
  18  */
  19 public class TaxonomicEditorPlugin extends AbstractUIPlugin {
  20         private static final Logger logger = Logger
  21                         .getLogger(TaxonomicEditorPlugin.class);
  22
  23         // The plug-in ID
  24         /** Constant <code>PLUGIN_ID="eu.etaxonomy.taxeditor.application"</code> */
  25         public static final String PLUGIN_ID = "eu.etaxonomy.taxeditor.application";
  26
  27         // The shared instance
  28         private static TaxonomicEditorPlugin plugin;
  29
  30         private PackageAdmin packageAdmin;
  31
  32         private ServiceReference packageAdminRef;
  33
  34         /** Constant <code>bundleContext</code> */
  35         protected static BundleContext bundleContext;
  36
  37
  38         private ServiceRegistration policyRegistration;
  39
  40 //      private CloudPolicy policy;
  41
  42         /**
  43          * The constructor
  44          */
  45         public TaxonomicEditorPlugin() {
  46         }
  47
  48         /*
  49          * (non-Javadoc)
  50          * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
  51          */
  52         /** {@inheritDoc} */
  53         public void start(BundleContext context) throws Exception {
  54                 super.start(context);
  55
  56                 plugin = this;
  57                 bundleContext = context;
  58
  59                 packageAdminRef = bundleContext.getServiceReference(PackageAdmin.class.getName());
  60                 packageAdmin = (PackageAdmin) bundleContext.getService(packageAdminRef);
  61
  62                 logger.debug("Taxonomic Editor started.");
  63         }
  64
  65         private Bundle getBundle(String symbolicName) {
  66                 if (packageAdmin == null)
  67                         return null;
  68                 Bundle[] bundles = packageAdmin.getBundles(symbolicName, null);
  69                 if (bundles == null)
  70                         return null;
  71                 // Return the first bundle that is not installed or uninstalled
  72                 for (int i = 0; i < bundles.length; i++) {
  73                         if ((bundles[i].getState() & (Bundle.INSTALLED | Bundle.UNINSTALLED)) == 0) {
  74                                 return bundles[i];
  75                         }
  76                 }
  77                 return null;
  78         }
  79
  80         /*
  81          * (non-Javadoc)
  82          * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
  83          */
  84         /** {@inheritDoc} */
  85         public void stop(BundleContext context) throws Exception {
  86                 plugin = null;
  87                 super.stop(context);
  88                 MessagingUtils.info("Taxonomic Editor stopped.");
  89         }
  90
  91         /**
  92          * Returns the shared instance
  93          *
  94          * @return the shared instance
  95          */
  96         public static TaxonomicEditorPlugin getDefault() {
  97                 return plugin;
  98         }
  99
 100
 101
 102 }