1 files changed, 93 insertions, 0 deletions
diff --git a/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/comm/PdpStatusPublisher.java b/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/comm/PdpStatusPublisher.java
new file mode 100644
index 000000000..33c9df778
--- /dev/null
+++ b/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/comm/PdpStatusPublisher.java
@@ -0,0 +1,93 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.models.sim.pdp.comm;
+
+import java.util.List;
+import java.util.Timer;
+import java.util.TimerTask;
+
+import org.onap.policy.common.endpoints.event.comm.TopicSink;
+import org.onap.policy.common.endpoints.event.comm.client.TopicSinkClient;
+import org.onap.policy.models.pdp.concepts.PdpStatus;
+import org.onap.policy.models.sim.pdp.handler.PdpMessageHandler;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This class is used to send pdp status messages to pap using TopicSinkClient.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class PdpStatusPublisher extends TimerTask {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(PdpStatusPublisher.class);
+
+    private TopicSinkClient topicSinkClient;
+    private Timer timer;
+    private long interval;
+
+    /**
+     * Constructor for instantiating PdpStatusPublisher.
+     *
+     * @param topicSinks the topic sinks
+     * @param interval time interval to send pdp status
+     */
+    public PdpStatusPublisher(final List<TopicSink> topicSinks, final long interval) {
+        this.topicSinkClient = new TopicSinkClient(topicSinks.get(0));
+        this.interval = interval;
+        timer = new Timer(false);
+        timer.scheduleAtFixedRate(this, 0, interval);
+    }
+
+    @Override
+    public void run() {
+        final PdpStatus pdpStatus = new PdpMessageHandler().createPdpStatusFromContext();
+        topicSinkClient.send(pdpStatus);
+        LOGGER.debug("Sent heartbeat to PAP - {}", pdpStatus);
+    }
+
+    /**
+     * Terminates the current timer.
+     */
+    public void terminate() {
+        timer.cancel();
+        timer.purge();
+    }
+
+    /**
+     * Get the current time interval used by the timer task.
+     *
+     * @return interval the current time interval
+     */
+    public long getInterval() {
+        return interval;
+    }
+
+    /**
+     * Method to send pdp status message to pap on demand.
+     *
+     * @param pdpStatus the pdp status
+     */
+    public void send(final PdpStatus pdpStatus) {
+        topicSinkClient.send(pdpStatus);
+        LOGGER.debug("Sent pdp status message to PAP - {}", pdpStatus);
+    }
+}