1 files changed, 107 insertions, 0 deletions
diff --git a/appc-client/client-lib/src/main/java/org/openecomp/appc/client/impl/core/SyncRequestResponseHandler.java b/appc-client/client-lib/src/main/java/org/openecomp/appc/client/impl/core/SyncRequestResponseHandler.java
new file mode 100644
index 000000000..e7a65766e
--- /dev/null
+++ b/appc-client/client-lib/src/main/java/org/openecomp/appc/client/impl/core/SyncRequestResponseHandler.java
@@ -0,0 +1,107 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * 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.
+ * 
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.appc.client.impl.core;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+
+import java.util.concurrent.TimeoutException;
+
+/** Handles sync requests
+ */
+class SyncRequestResponseHandler<T> extends AbstractRequestResponseHandler {
+
+    private final EELFLogger LOG = EELFManager.getInstance().getLogger(SyncRequestResponseHandler.class);
+    private T responseObject = null;
+    private CoreException coreException = null;
+    private TimeoutException timeoutException = null;
+
+    SyncRequestResponseHandler(String corrID,
+                               ICoreResponseHandler callback,
+                               CoreManager coreManager){
+        super(corrID, callback, coreManager);
+    }
+
+    /**
+     *  Calls API callback for getting response object. in case of complete response notifies consumer
+     *  thread for receiving response
+     * @param response - Response
+     * @param type - Type of Response
+     */
+    synchronized void runTask(String response, String type) {
+        try {
+            responseObject = ((ICoreSyncResponseHandler) businessCallback).onResponse(response, type);
+        } catch (CoreException e) {
+            coreException = e;
+        }
+        if(responseObject != null || coreException != null) {
+            notify();
+        }
+    }
+
+
+    /**
+     * Returns response. goes sleep until coming either timeout event or complete response
+     */
+    public synchronized  <T> T getResponse() throws CoreException, TimeoutException {
+        try{
+            if(!isResponseReceived()){
+                wait();
+            }
+            if (coreException != null) {
+                throw coreException;
+            }
+            if ( timeoutException != null) {
+                throw timeoutException;
+            }
+
+        } catch (InterruptedException e) {
+            throw new CoreException(e);
+        } finally{
+            coreManager.unregisterHandler(corrID);
+            coreManager.cancelTimer(corrID);
+        }
+        return (T) responseObject;
+    }
+
+    /**
+     * indicates if a response received
+     * @return
+     */
+    private boolean isResponseReceived() {
+        return responseObject != null;
+    }
+
+    @Override
+    public synchronized void onTimeOut() {
+        LOG.error("sync response handler on timeout correlation ID <" + corrID + ">.");
+        timeoutException = new TimeoutException("timeout for request with correlation-id " + corrID);
+        notify();
+    }
+
+
+
+
+}