1 files changed, 79 insertions, 0 deletions
diff --git a/appc-dispatcher/appc-request-handler/appc-request-handler-core/src/main/java/org/openecomp/appc/requesthandler/helper/RequestRegistry.java b/appc-dispatcher/appc-request-handler/appc-request-handler-core/src/main/java/org/openecomp/appc/requesthandler/helper/RequestRegistry.java
new file mode 100644
index 000000000..874626c78
--- /dev/null
+++ b/appc-dispatcher/appc-request-handler/appc-request-handler-core/src/main/java/org/openecomp/appc/requesthandler/helper/RequestRegistry.java
@@ -0,0 +1,79 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : APP-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.appc.requesthandler.helper;
+
+import org.apache.commons.lang.ObjectUtils;
+import org.openecomp.appc.executor.objects.UniqueRequestIdentifier;
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+
+import java.util.Collections;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ *
+ * This class serves as Request Registry, which holds the
+ * request unique parameters (originatorId,requestId,subRequestId)
+ * in memory.
+ */
+public class RequestRegistry {
+
+    static Set<UniqueRequestIdentifier> set = Collections.newSetFromMap(new ConcurrentHashMap<UniqueRequestIdentifier, Boolean>());
+    private static final EELFLogger logger = EELFManager.getInstance().getLogger(RequestRegistry.class);
+    public RequestRegistry(){
+
+    }
+
+    /**
+     * This method accepts unique request parameters and adds it to Request Registry
+     * if Registry already contains same parameters it returns false,
+     * else returns true.
+     * @param requestIdentifier
+     * @return
+     */
+    public boolean registerRequest(UniqueRequestIdentifier requestIdentifier){
+
+        if (logger.isTraceEnabled()) {
+            logger.trace("Entering to registerRequest with UniqueRequestIdentifier = "+ ObjectUtils.toString(requestIdentifier));
+        }
+        boolean output = set.add(requestIdentifier);
+        logger.debug(" Output = " + output);
+        if (logger.isTraceEnabled()) {
+            logger.trace("Exiting from registerRequest with (output = "+ ObjectUtils.toString(output)+")");
+        }
+        return output;
+    }
+
+    /**
+     * This method accepts unique request parameters and removes request
+     * from the Request Registry
+     * @param requestIdentifier
+     */
+    public void removeRequest(UniqueRequestIdentifier requestIdentifier){
+        if (logger.isTraceEnabled()) {
+            logger.trace("Entering to removeRequest with UniqueRequestIdentifier = "+ ObjectUtils.toString(requestIdentifier));
+        }
+        set.remove(requestIdentifier);
+    }
+
+}