1 files changed, 71 insertions, 0 deletions
diff --git a/controlloop/common/controller-usecases/src/main/java/org/onap/policy/drools/apps/controller/usecases/step/LockStep2.java b/controlloop/common/controller-usecases/src/main/java/org/onap/policy/drools/apps/controller/usecases/step/LockStep2.java
new file mode 100644
index 000000000..507a08116
--- /dev/null
+++ b/controlloop/common/controller-usecases/src/main/java/org/onap/policy/drools/apps/controller/usecases/step/LockStep2.java
@@ -0,0 +1,71 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 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.onap.policy.drools.apps.controller.usecases.step;
+
+import org.onap.policy.controlloop.actorserviceprovider.Operation;
+import org.onap.policy.controlloop.eventmanager.ActorConstants;
+import org.onap.policy.drools.apps.controller.usecases.LockOperation2;
+
+/**
+ * Wrapper for the LOCK pseudo operation. Arranges for the lock's future to generate an
+ * outcome.
+ */
+public class LockStep2 extends Step2 {
+
+    /**
+     * Constructs the object using information from another step.
+     *
+     * @param otherStep step whose information should be used
+     */
+    public LockStep2(Step2 otherStep) {
+        super(otherStep, ActorConstants.LOCK_ACTOR, ActorConstants.LOCK_OPERATION);
+    }
+
+    @Override
+    public boolean acceptsEvent() {
+        return true;
+    }
+
+    @Override
+    public boolean start(long remainingMs) {
+        super.start(remainingMs);
+
+        if (future != null) {
+            future.whenComplete((outcome, thrown) -> {
+                outcome.setFinalOutcome(true);
+                params.getCompleteCallback().accept(outcome);
+            });
+        }
+
+        /*
+         * ELSE: The operation must have thrown an exception. Nothing more to do as
+         * super.start() will have already propagated the exception to the completion
+         * handler.
+         */
+
+        return true;
+    }
+
+    @Override
+    protected Operation buildOperation() {
+        return new LockOperation2(stepContext, params);
+    }
+}