1 files changed, 99 insertions, 0 deletions
diff --git a/utils/src/main/java/org/onap/policy/common/utils/services/ServiceManagerContainer.java b/utils/src/main/java/org/onap/policy/common/utils/services/ServiceManagerContainer.java
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+++ b/utils/src/main/java/org/onap/policy/common/utils/services/ServiceManagerContainer.java
@@ -0,0 +1,99 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 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.common.utils.services;
+
+import org.onap.policy.common.capabilities.Startable;
+import org.onap.policy.common.utils.services.ServiceManager.RunnableWithEx;
+
+/**
+ * Container, of a service manager, that implements a {@link Startable} interface by
+ * delegating to the contained service manager. This allows subclasses to add actions to
+ * the service manager, while preventing other classes from doing so.
+ */
+public class ServiceManagerContainer implements Startable {
+
+    /**
+     * The contained manager.
+     */
+    private final ServiceManager serviceManager;
+
+    /**
+     * Constructs the object, with a default name.
+     */
+    public ServiceManagerContainer() {
+        serviceManager = new ServiceManager();
+    }
+
+    /**
+     * Constructs the object.
+     *
+     * @param name the manager's name, used for logging purposes
+     */
+    public ServiceManagerContainer(String name) {
+        serviceManager = new ServiceManager(name);
+    }
+
+    public String getName() {
+        return serviceManager.getName();
+    }
+
+    /**
+     * Adds a pair of service actions to the manager.
+     *
+     * @param stepName name to be logged when the service is started/stopped
+     * @param starter function to start the service
+     * @param stopper function to stop the service
+     */
+    protected void addAction(String stepName, RunnableWithEx starter, RunnableWithEx stopper) {
+        serviceManager.addAction(stepName, starter, stopper);
+    }
+
+    /**
+     * Adds a service to the manager. The manager will invoke the service's
+     * {@link Startable#start()} and {@link Startable#stop()} methods.
+     *
+     * @param stepName name to be logged when the service is started/stopped
+     * @param service object to be started/stopped
+     */
+    protected void addService(String stepName, Startable service) {
+        serviceManager.addService(stepName, service);
+    }
+
+    @Override
+    public boolean isAlive() {
+        return serviceManager.isAlive();
+    }
+
+    @Override
+    public boolean start() {
+        return serviceManager.start();
+    }
+
+    @Override
+    public boolean stop() {
+        return serviceManager.stop();
+    }
+
+    @Override
+    public void shutdown() {
+        serviceManager.shutdown();
+    }
+}