1 files changed, 66 insertions, 0 deletions
diff --git a/plugins/org.eclipse.osee.framework.messaging/src/org/eclipse/osee/framework/messaging/internal/old/ConcurrentListMap.java b/plugins/org.eclipse.osee.framework.messaging/src/org/eclipse/osee/framework/messaging/internal/old/ConcurrentListMap.java
new file mode 100644
index 00000000000..0bcd2954599
--- /dev/null
+++ b/plugins/org.eclipse.osee.framework.messaging/src/org/eclipse/osee/framework/messaging/internal/old/ConcurrentListMap.java
@@ -0,0 +1,66 @@
+/*******************************************************************************
+ * Copyright (c) 2004, 2007 Boeing.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Boeing - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.osee.framework.messaging.internal.old;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+/**
+ * @author Andrew M. Finkbeiner
+ */
+public class ConcurrentListMap<MAP_TYPE, LIST_TYPE> {
+
+   private Map<MAP_TYPE, List<LIST_TYPE>> data;
+   private List<LIST_TYPE> EMPTY_LIST = new ArrayList<LIST_TYPE>();
+
+   public ConcurrentListMap() {
+      data = new HashMap<MAP_TYPE, List<LIST_TYPE>>();
+   }
+
+   public synchronized boolean add(MAP_TYPE key, LIST_TYPE value) {
+      List<LIST_TYPE> values = data.get(key);
+      if (values == null) {
+         values = new CopyOnWriteArrayList<LIST_TYPE>();
+         data.put(key, values);
+      }
+      if (values.contains(value)) {
+         return false;
+      } else {
+         values.add(value);
+         return true;
+      }
+   }
+
+   public synchronized List<LIST_TYPE> get(MAP_TYPE key) {
+      List<LIST_TYPE> values = data.get(key);
+      if (values == null) {
+         return EMPTY_LIST;
+      } else {
+         return values;
+      }
+   }
+
+   public synchronized boolean remove(MAP_TYPE key, LIST_TYPE value) {
+      List<LIST_TYPE> values = data.get(key);
+      if (values == null) {
+         return false;
+      } else {
+         return values.remove(value);
+      }
+   }
+
+   public void clear() {
+      data.clear();
+   }
+}