Refactor WorkflowAsyncResource

Change-Id: I794b606687343851f71d63ac055ed1898320216a
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>

2 files changed, 31 insertions, 37 deletions

diff --git a/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/bpmn/common/workflow/service/WorkflowAsyncCommonResource.java b/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/bpmn/common/workflow/service/WorkflowAsyncCommonResource.java
index c0ea0cf874..f3ad810a3e 100644
--- a/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/bpmn/common/workflow/service/WorkflowAsyncCommonResource.java
+++ b/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/bpmn/common/workflow/service/WorkflowAsyncCommonResource.java
@@ -26,11 +26,7 @@ import org.camunda.bpm.engine.ProcessEngines;
 

 public class WorkflowAsyncCommonResource extends WorkflowAsyncResource {

 

-	protected ProcessEngineServices getProcessEngineServices() {

-		if (pes4junit == null) {

-			return ProcessEngines.getProcessEngine("common");

-		} else {

-			return pes4junit;

-		}

-	}

+    protected ProcessEngineServices getProcessEngineServices() {

+        return pes4junit.orElse(ProcessEngines.getProcessEngine("common"));

+    }

 }

diff --git a/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/bpmn/common/workflow/service/WorkflowAsyncResource.java b/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/bpmn/common/workflow/service/WorkflowAsyncResource.java
index b13ac46784..1bd1dfde70 100644
--- a/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/bpmn/common/workflow/service/WorkflowAsyncResource.java
+++ b/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/bpmn/common/workflow/service/WorkflowAsyncResource.java
@@ -21,6 +21,8 @@ package org.openecomp.mso.bpmn.common.workflow.service;
 

 import java.util.HashMap;

 import java.util.Map;

+import java.util.Objects;

+import java.util.Optional;

 import java.util.UUID;

 

 import javax.ws.rs.Consumes;

@@ -31,7 +33,6 @@ import javax.ws.rs.Produces;
 import javax.ws.rs.core.Response;

 

 import org.camunda.bpm.engine.ProcessEngineServices;

-import org.camunda.bpm.engine.ProcessEngines;

 import org.camunda.bpm.engine.RuntimeService;

 import org.camunda.bpm.engine.runtime.ProcessInstance;

 import org.camunda.bpm.engine.variable.impl.VariableMapImpl;

@@ -54,13 +55,13 @@ import org.slf4j.MDC;
 @Path("/async")

 public abstract class WorkflowAsyncResource {
 

-	private WorkflowContextHolder contextHolder = WorkflowContextHolder.getInstance();

-	protected ProcessEngineServices pes4junit = null;

+	private static final WorkflowContextHolder contextHolder = WorkflowContextHolder.getInstance();

+	protected Optional<ProcessEngineServices> pes4junit = Optional.empty();

 

-	private MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.BPEL);

+	private final MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.BPEL);

 

 	private static final String logMarker = "[WRKFLOW-RESOURCE]";

-	private static final int DEFAULT_WAIT_TIME = 30000;	//default wait time

+	private static final long DEFAULT_WAIT_TIME = 30000;	//default wait time

 	

 	/**

 	 * Asynchronous JAX-RS method that starts a process instance.

@@ -75,7 +76,6 @@ public abstract class WorkflowAsyncResource {
 	public void startProcessInstanceByKey(final @Suspend(180000) AsynchronousResponse asyncResponse,

 			@PathParam("processKey") String processKey, VariableMapImpl variableMap) {

 	

-		WorkflowResponse response = new WorkflowResponse();

 		long startTime = System.currentTimeMillis();

 		Map<String, Object> inputVariables = null;

 		WorkflowContext workflowContext = null;

@@ -107,6 +107,7 @@ public abstract class WorkflowAsyncResource {
 			}

 

 			msoLogger.debug(logMarker + "Exception in startProcessInstance by key");

+	        WorkflowResponse response = new WorkflowResponse();

 			response.setMessage("Fail" );

 			response.setResponse("Error occurred while executing the process: " + e);

 			response.setMessageCode(500);

@@ -205,29 +206,28 @@ public abstract class WorkflowAsyncResource {
 		return contextHolder.processCallback(processKey, processInstanceId, requestId, callbackResponse);

 	}

 	

+    private static String getOrCreate(Map<String, Object> inputVariables, String key) {

+        String value = Objects.toString(inputVariables.get(key), null);

+        if (value == null) {

+            value = UUID.randomUUID().toString();

+            inputVariables.put(key, value);

+        }

+        return value;

+    }

+	

 	// Note: the business key is used to identify the process in unit tests

-	private String getBusinessKey(Map<String, Object> inputVariables) {

-		Object businessKey = inputVariables.get("mso-business-key");

-		if (businessKey == null ) {

-			businessKey = UUID.randomUUID().toString();

-			inputVariables.put("mso-business-key",  businessKey);

-		}

-		return businessKey.toString();

+	private static String getBusinessKey(Map<String, Object> inputVariables) {

+        return getOrCreate(inputVariables, "mso-business-key");

 	}

 

-	private String getRequestId(Map<String, Object> inputVariables) {

-		Object requestId = inputVariables.get("mso-request-id");

-		if (requestId == null ) {

-			requestId = UUID.randomUUID().toString();

-			inputVariables.put("mso-request-id",  requestId);

-		} 

-		return requestId.toString();

+	private static String getRequestId(Map<String, Object> inputVariables) {

+        return getOrCreate(inputVariables, "mso-request-id");

 	}

 

 	private long getWaitTime(Map<String, Object> inputVariables)

 	{

-		String timeout = inputVariables.get("mso-service-request-timeout") == null

-				? null : inputVariables.get("mso-service-request-timeout").toString();		

+	    

+		String timeout = Objects.toString(inputVariables.get("mso-service-request-timeout"), null);

 

 		if (timeout != null) {

 			try {

@@ -252,7 +252,7 @@ public abstract class WorkflowAsyncResource {
 		

 	}

 

-	private void setLogContext(String processKey,

+	private static void setLogContext(String processKey,

 			Map<String, Object> inputVariables) {

 		MsoLogger.setServiceName("MSO." + processKey);

 		if (inputVariables != null) {

@@ -260,26 +260,24 @@ public abstract class WorkflowAsyncResource {
 		}

 	}

 

-	private String getKeyValueFromInputVariables(Map<String,Object> inputVariables, String key) {

+	private static String getKeyValueFromInputVariables(Map<String,Object> inputVariables, String key) {

 		if (inputVariables == null) return "";

-		Object requestId = inputVariables.get(key);

-		if (requestId != null) return requestId.toString();

-		return "N/A";

+		return Objects.toString(inputVariables.get(key), "N/A");

 	}

 

 	private boolean isProcessEnded(String processInstanceId) {

 		ProcessEngineServices pes = getProcessEngineServices();

-		return pes.getRuntimeService().createProcessInstanceQuery().processInstanceId(processInstanceId).singleResult() == null ? true : false ;		

+		return pes.getRuntimeService().createProcessInstanceQuery().processInstanceId(processInstanceId).singleResult() == null;

 	}

 	

 	

 	protected abstract ProcessEngineServices getProcessEngineServices();
 	

 	public void setProcessEngineServices4junit(ProcessEngineServices pes) {

-		pes4junit = pes;

+		pes4junit = Optional.ofNullable(pes);

 	}

 

-	private Map<String, Object> getInputVariables(VariableMapImpl variableMap) {

+	private static Map<String, Object> getInputVariables(VariableMapImpl variableMap) {

 		Map<String, Object> inputVariables = new HashMap<String,Object>();

 		@SuppressWarnings("unchecked")

 		Map<String, Object> vMap = (Map<String, Object>) variableMap.get("variables");