1 files changed, 69 insertions, 30 deletions

diff --git a/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/client/appc/ApplicationControllerClient.java b/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/client/appc/ApplicationControllerClient.java
index 8c57b9255c..3cd26be631 100644
--- a/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/client/appc/ApplicationControllerClient.java
+++ b/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/client/appc/ApplicationControllerClient.java
@@ -26,9 +26,7 @@ import java.time.Instant;
 import java.util.Map;
 import java.util.Properties;
 import java.util.UUID;
-
-import org.openecomp.mso.bpmn.core.PropertyConfiguration;
-import org.springframework.beans.factory.annotation.Autowired;
+import java.util.concurrent.ConcurrentHashMap;
 
 import org.onap.appc.client.lcm.api.AppcClientServiceFactoryProvider;
 import org.onap.appc.client.lcm.api.AppcLifeCycleManagerServiceFactory;
@@ -44,11 +42,16 @@ import org.onap.appc.client.lcm.model.Flags.Mode;
 import org.onap.appc.client.lcm.model.Payload;
 import org.onap.appc.client.lcm.model.Status;
 import org.onap.appc.client.lcm.model.ZULU;
+import org.openecomp.mso.bpmn.core.PropertyConfiguration;
+import org.springframework.beans.factory.annotation.Autowired;
+
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFLogger.Level;
 import com.att.eelf.configuration.EELFManager;
 
 public class ApplicationControllerClient {
+	
+	public static final String DEFAULT_CONTROLLER_TYPE = "appc";
 
 	private static final String CLIENT_NAME = "MSO";
 
@@ -60,18 +63,68 @@ public class ApplicationControllerClient {
 	@Autowired
 	public ApplicationControllerSupport appCSupport;
 
-	private static LifeCycleManagerStateful client;	
+	// APPC gave us an API where the controllerType is configured in the
+	// client object, which is not what we asked for. We asked for an API
+	// in which the client would have additional methods that could take
+	// the controllerType as a parameter, so that we would not need to
+	// maintain multiple client objects.  This map should be removed when
+	// the (hopefully short-term) controllerType becomes obsolete.
+
+	private final String controllerType;
+
+	private static ConcurrentHashMap<String, LifeCycleManagerStateful> appCClients = new ConcurrentHashMap<>();
 
+	/**
+	 * Creates an ApplicationControllerClient for communication with APP-C.
+	 */
+	public ApplicationControllerClient() {
+		this(DEFAULT_CONTROLLER_TYPE);
+	}
+	
+	/**
+	 * Creates an ApplicationControllerClient for the specified controller type.
+	 * @param controllerType the controller type: "appc" or "sndnc".
+	 */
 	public ApplicationControllerClient(String controllerType) {
+		this.controllerType = controllerType;
 		appCSupport = new ApplicationControllerSupport();
-		client = this.getAppCClient(controllerType);		
+	}
+	
+	/**
+	 * Gets the controller type.
+	 * @return the controllertype
+	 */
+	public String getControllerType() {
+		return controllerType;
 	}
 
-	public Status runCommand(Action action, org.onap.appc.client.lcm.model.ActionIdentifiers actionIdentifiers, org.onap.appc.client.lcm.model.Payload payload, String requestID)
+	/**
+	 * Returns the AppC client object associated with this ApplicationControllerClient.
+	 * AppC client objects are shared objects.  One is created if it does not exist.
+	 * @return the client object, or null if creation failed
+	 */
+	public LifeCycleManagerStateful getAppCClient() {
+		return appCClients.computeIfAbsent(controllerType, k -> createAppCClient(k));
+	}
+
+	protected LifeCycleManagerStateful createAppCClient(String controllerType) {
+		try {
+			return AppcClientServiceFactoryProvider.getFactory(AppcLifeCycleManagerServiceFactory.class)
+					.createLifeCycleManagerStateful(new ApplicationContext(), getLCMProperties());
+		} catch (AppcClientException e) {
+			auditLogger.log(Level.ERROR, "Error in getting LifeCycleManagerStateful: ", e, e.getMessage());
+			// This null value will cause NullPointerException when used later.
+			// Error handling could certainly be improved here.
+			return null;
+		}
+	}
+
+	public Status runCommand(Action action, org.onap.appc.client.lcm.model.ActionIdentifiers actionIdentifiers,
+			org.onap.appc.client.lcm.model.Payload payload, String requestID)
 			throws ApplicationControllerOrchestratorException {
-		Object requestObject;
-		requestObject = createRequest(action, actionIdentifiers, payload, requestID);
+		Object requestObject = createRequest(action, actionIdentifiers, payload, requestID);
 		appCSupport.logLCMMessage(requestObject);
+		LifeCycleManagerStateful client = getAppCClient();
 		Method lcmMethod = appCSupport.getAPIMethod(action.name(), client, false);
 		try {
 			Object response = lcmMethod.invoke(client, requestObject);
@@ -81,35 +134,21 @@ public class ApplicationControllerClient {
 		}
 	}
 
-	public LifeCycleManagerStateful getAppCClient(String controllerType) {
-		if (client == null)
-			try {
-				client = AppcClientServiceFactoryProvider.getFactory(AppcLifeCycleManagerServiceFactory.class)
-						.createLifeCycleManagerStateful(new ApplicationContext(), getLCMProperties(controllerType));
-			} catch (AppcClientException e) {
-				auditLogger.log(Level.ERROR, "Error in getting LifeCycleManagerStateful: ", e, e.getMessage());
-			}
-		return client;
-	}
-
-	protected Properties getLCMProperties(String controllerType) {
+	protected Properties getLCMProperties() {
 		Properties properties = new Properties();
 		Map<String, String> globalProperties = PropertyConfiguration.getInstance()
 				.getProperties("mso.bpmn.urn.properties");
-		String controllerTypeValue = controllerType;
-		if (controllerType == null) {			
-			controllerTypeValue = "";
-		}
-		properties.put("topic.read", globalProperties.get("appc.topic.read"));
-		properties.put("topic.read.timeout", globalProperties.get("appc.topic.read.timeout"));
+		properties.put("topic.read", globalProperties.get("appc.client.topic.read"));
+		properties.put("topic.write", globalProperties.get("appc.client.topic.write"));
+		properties.put("topic.sdnc.read", globalProperties.get("appc.client.topic.sdnc.read"));
+		properties.put("topic.sdnc.write", globalProperties.get("appc.client.topic.sdnc.write"));
+		properties.put("topic.read.timeout", globalProperties.get("appc.client.topic.read.timeout"));
 		properties.put("client.response.timeout", globalProperties.get("appc.client.response.timeout"));
-		properties.put("topic.write", globalProperties.get("appc.topic.write"));
-		properties.put("poolMembers", globalProperties.get("appc.poolMembers"));
-		properties.put("client.controllerType", controllerTypeValue);
+		properties.put("poolMembers", globalProperties.get("appc.client.poolMembers"));
 		properties.put("client.key", globalProperties.get("appc.client.key"));
 		properties.put("client.secret", globalProperties.get("appc.client.secret"));
 		properties.put("client.name", CLIENT_NAME);
-		properties.put("service", globalProperties.get("appc.service"));
+		properties.put("service", globalProperties.get("appc.client.service"));
 		return properties;
 	}