1 files changed, 64 insertions, 0 deletions
diff --git a/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/bpmn/common/workflow/service/ProcessEngineAwareService.java b/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/bpmn/common/workflow/service/ProcessEngineAwareService.java
new file mode 100644
index 0000000000..dbb6674a64
--- /dev/null
+++ b/bpmn/MSOCommonBPMN/src/main/java/org/openecomp/mso/bpmn/common/workflow/service/ProcessEngineAwareService.java
@@ -0,0 +1,64 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017 Huawei Technologies Co., Ltd. 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.mso.bpmn.common.workflow.service;
+
+import java.util.Optional;
+
+import org.camunda.bpm.engine.ProcessEngineServices;
+import org.camunda.bpm.engine.ProcessEngines;
+
+/**
+ * Base class for services that must be process-engine aware. The only
+ * process engine currently supported is the "default" process engine.
+ */
+public class ProcessEngineAwareService {
+	
+	private final String processEngineName = "default";
+	private volatile Optional<ProcessEngineServices> pes4junit = Optional.empty();
+	
+	/**
+	 * Gets the process engine name.
+	 * @return the process engine name
+	 */
+	public String getProcessEngineName() {
+		return processEngineName;
+	}
+
+	/**
+	 * Gets process engine services.
+	 * @return process engine services
+	 */
+	public ProcessEngineServices getProcessEngineServices() {
+		return pes4junit.orElse(ProcessEngines.getProcessEngine(
+				getProcessEngineName()));
+	}
+
+	/**
+	 * Allows a particular process engine to be specified, overriding the
+	 * usual process engine lookup by name.  Intended primarily for the
+	 * unit test environment.
+	 * @param pes process engine services
+	 */
+	public void setProcessEngineServices4junit(ProcessEngineServices pes) {
+		pes4junit = Optional.ofNullable(pes);
+	}
+}