X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.ui.workspace.tracker%2Fsrc%2Forg%2Fsimantics%2Fui%2Fworkspace%2Ftracker%2Finternal%2FActivator.java;fp=bundles%2Forg.simantics.ui.workspace.tracker%2Fsrc%2Forg%2Fsimantics%2Fui%2Fworkspace%2Ftracker%2Finternal%2FActivator.java;h=23d593c70001d64297bda5dd037816e44f533722;hp=0000000000000000000000000000000000000000;hb=ad41b9af52c52b5ea1e9d8c6753f4e341ed40d67;hpb=26313671f3eb6e4d7f41b7a3a2505ca47d26273c

diff --git a/bundles/org.simantics.ui.workspace.tracker/src/org/simantics/ui/workspace/tracker/internal/Activator.java b/bundles/org.simantics.ui.workspace.tracker/src/org/simantics/ui/workspace/tracker/internal/Activator.java
new file mode 100644
index 000000000..23d593c70
--- /dev/null
+++ b/bundles/org.simantics.ui.workspace.tracker/src/org/simantics/ui/workspace/tracker/internal/Activator.java
@@ -0,0 +1,69 @@
+package org.simantics.ui.workspace.tracker.internal;
+
+import org.eclipse.core.runtime.preferences.InstanceScope;
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.ui.preferences.ScopedPreferenceStore;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.util.tracker.ServiceTracker;
+import org.simantics.filesystem.services.sizetracker.DirectorySizeService;
+
+/**
+ * @author Tuukka Lehtonen
+ * @since 1.31.0
+ */
+public class Activator implements BundleActivator {
+
+	private static Activator instance;
+	private static BundleContext context;
+	private ServiceTracker<DirectorySizeService, DirectorySizeService> tracker;
+	private IPreferenceStore preferenceStore;
+
+	static BundleContext getContext() {
+		return context;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
+	 */
+	public void start(BundleContext bundleContext) throws Exception {
+		Activator.instance = this;
+		Activator.context = bundleContext;
+		tracker = new ServiceTracker<>(bundleContext, DirectorySizeService.class, null);
+		tracker.open();
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
+	 */
+	public void stop(BundleContext bundleContext) throws Exception {
+		tracker.close();
+		Activator.context = null;
+		Activator.instance = null;
+	}
+
+	/**
+	 * @return <code>null</code> if service is no longer available
+	 */
+	public DirectorySizeService getDirectorySizeService() {
+		return tracker.getService();
+	}
+
+	public BundleContext getBundleContext() {
+		return context;
+	}
+
+	public IPreferenceStore getPreferenceStore() {
+		if (preferenceStore == null) {
+			preferenceStore = new ScopedPreferenceStore(InstanceScope.INSTANCE, context.getBundle().getSymbolicName());
+		}
+		return preferenceStore;
+	}
+
+	public static Activator getDefault() {
+		return instance;
+	}
+
+}