org.simantics.district.network.ui/src/org/simantics/district/network/ui/internal/Activator.java

   1 package org.simantics.district.network.ui.internal;
   2
   3 import org.eclipse.ui.plugin.AbstractUIPlugin;
   4 import org.osgi.framework.BundleContext;
   5 import org.osgi.util.tracker.ServiceTracker;
   6 import org.simantics.district.network.ui.breakdown.SubgraphProvider;
   7 import org.simantics.district.route.RouteService;
   8
   9 public class Activator extends AbstractUIPlugin {
  10
  11     public static final String PLUGIN_ID = "org.simantics.district.network.ui";
  12
  13     private static Activator instance;
  14     private static BundleContext context;
  15
  16     private ServiceTracker<SubgraphProvider, SubgraphProvider> subgraphProviderTracker;
  17     private ServiceTracker<RouteService, RouteService> routeServiceTracker;
  18
  19     @Override
  20     public void start(BundleContext context) throws Exception {
  21         Activator.instance = this;
  22         Activator.context = context;
  23
  24         subgraphProviderTracker = new ServiceTracker<>(context, SubgraphProvider.class.getName(), null);
  25         subgraphProviderTracker.open();
  26         routeServiceTracker = new ServiceTracker<>(context, RouteService.class.getName(), null);
  27         routeServiceTracker.open();
  28     }
  29
  30     @Override
  31     public void stop(BundleContext context) throws Exception {
  32         subgraphProviderTracker.close();
  33         routeServiceTracker.close();
  34
  35         Activator.instance = null;
  36         Activator.context = null;
  37     }
  38
  39     public static Activator getInstance() {
  40         return instance;
  41     }
  42
  43     public static BundleContext getContext() {
  44         return context;
  45     }
  46
  47     public SubgraphProvider[] getSubgraphProviders() {
  48         return subgraphProviderTracker.getServices(new SubgraphProvider[0]);
  49     }
  50
  51     public RouteService getRouteService() {
  52         return routeServiceTracker.getService();
  53     }
  54
  55 }