1 files changed, 74 insertions, 0 deletions
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantStateChangePublisher.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantStateChangePublisher.java
new file mode 100644
index 000000000..099039115
--- /dev/null
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantStateChangePublisher.java
@@ -0,0 +1,74 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 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.clamp.controlloop.runtime.supervision.comm;
+
+import java.util.List;
+import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantStateChange;
+import org.onap.policy.common.endpoints.event.comm.TopicSink;
+import org.onap.policy.common.endpoints.event.comm.client.TopicSinkClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This class is used to send ParticipantStateChange messages to participants on DMaaP.
+ */
+public class ParticipantStateChangePublisher {
+    private static final Logger LOGGER = LoggerFactory.getLogger(ParticipantStateChangePublisher.class);
+
+    private TopicSinkClient topicSinkClient;
+
+    /**
+     * Constructor for instantiating ParticipantStateChangePublisher.
+     *
+     * @param topicSinks the topic sinks
+     * @param interval time interval to send ParticipantStateChange messages
+     */
+    public ParticipantStateChangePublisher(final List<TopicSink> topicSinks, final long interval) {
+        // TODO: Should not be dependent on the order of topic sinks in the config
+        this.topicSinkClient = new TopicSinkClient(topicSinks.get(0));
+    }
+
+    /**
+     * Terminates the current timer.
+     */
+    public void terminate() {
+        // Nothing to terminate, this publisher does not have a timer
+    }
+
+    /**
+     * Get the current time interval used by the timer task.
+     *
+     * @return interval the current time interval
+     */
+    public long getInterval() {
+        return -1;
+    }
+
+    /**
+     * Method to send ParticipantStateChange status message to participants on demand.
+     *
+     * @param participantStateChange the ParticipantStateChange message
+     */
+    public void send(final ParticipantStateChange participantStateChange) {
+        topicSinkClient.send(participantStateChange);
+        LOGGER.debug("Sent ParticipantStateChange to Participants - {}", participantStateChange);
+    }
+}