1 files changed, 56 insertions, 0 deletions
diff --git a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/SynchronizedFunction.java b/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/SynchronizedFunction.java
new file mode 100644
index 0000000..0bbb053
--- /dev/null
+++ b/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/SynchronizedFunction.java
@@ -0,0 +1,56 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : SDN-C
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights
+ *             reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.lock.comp;
+
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Set;
+
+public abstract class SynchronizedFunction {
+
+	private Set<String> synchset;
+	private String lockRequester;
+	private int lockTimeout; // Seconds
+	private LockHelper lockHelper;
+
+	protected SynchronizedFunction(LockHelper lockHelper, Collection<String> synchset, int lockTimeout) {
+		this.lockHelper = lockHelper;
+		this.synchset = new HashSet<String>(synchset);
+		this.lockRequester = generateLockRequester();
+		this.lockTimeout = lockTimeout;
+	}
+
+	protected abstract void _exec();
+
+	public void exec() {
+		lockHelper.lock(synchset, lockRequester, lockTimeout);
+		try {
+			_exec();
+		} finally {
+			lockHelper.unlock(synchset, true);
+		}
+	}
+
+	private static String generateLockRequester() {
+		return "SynchronizedFunction-" + (int) (Math.random() * 1000000);
+	}
+}