Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.debug.browser / src / org / simantics / debug / browser / content / ResourceBrowserRewriterRepository.java

diff --git a/bundles/org.simantics.debug.browser/src/org/simantics/debug/browser/content/ResourceBrowserRewriterRepository.java b/bundles/org.simantics.debug.browser/src/org/simantics/debug/browser/content/ResourceBrowserRewriterRepository.java
new file mode 100644 (file)
index 0000000..ce5aa93
--- /dev/null
+++ b/bundles/org.simantics.debug.browser/src/org/simantics/debug/browser/content/ResourceBrowserRewriterRepository.java
@@ -0,0 +1,45 @@
+/*******************************************************************************\r
+ * Copyright (c) 2016 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     THTH ry - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.debug.browser.content;\r
+\r
+import java.util.Arrays;\r
+import java.util.Comparator;\r
+\r
+import org.osgi.framework.BundleContext;\r
+import org.osgi.util.tracker.ServiceTracker;\r
+import org.simantics.debug.browser.internal.Activator;\r
+\r
+public class ResourceBrowserRewriterRepository {\r
+    private static ServiceTracker<ResourceBrowserRewriter, ResourceBrowserRewriter> TRACKER;\r
+\r
+    private static final Comparator<ResourceBrowserRewriter> REWRITER_COMPARATOR =\r
+            new Comparator<ResourceBrowserRewriter>() {\r
+        @Override\r
+        public int compare(ResourceBrowserRewriter o1,\r
+                ResourceBrowserRewriter o2) {\r
+            return Double.compare(o1.getPriority(), o2.getPriority());\r
+        }\r
+    };\r
+\r
+    public static ResourceBrowserRewriter[] getRewriters() {\r
+        if(TRACKER == null) {\r
+            BundleContext context = Activator.getContext();\r
+            TRACKER = new ServiceTracker<ResourceBrowserRewriter, ResourceBrowserRewriter>(\r
+                    context, ResourceBrowserRewriter.class, null);\r
+            TRACKER.open();\r
+        }\r
+        ResourceBrowserRewriter[] rewriters =\r
+                TRACKER.getServices(new ResourceBrowserRewriter[TRACKER.getTrackingCount()]);\r
+        Arrays.sort(rewriters, REWRITER_COMPARATOR);\r
+        return rewriters;\r
+    }\r
+}\r