2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.pdpx.main.comm.listeners;
23 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
24 import org.onap.policy.common.endpoints.event.comm.client.TopicSinkClient;
25 import org.onap.policy.common.endpoints.listeners.ScoListener;
26 import org.onap.policy.common.utils.coder.StandardCoderObject;
27 import org.onap.policy.models.pdp.concepts.PdpUpdate;
28 import org.onap.policy.pdpx.main.XacmlState;
29 import org.onap.policy.pdpx.main.comm.XacmlPdpHearbeatPublisher;
30 import org.onap.policy.pdpx.main.comm.XacmlPdpUpdatePublisher;
31 import org.onap.policy.pdpx.main.rest.XacmlPdpApplicationManager;
32 import org.slf4j.Logger;
33 import org.slf4j.LoggerFactory;
35 public class XacmlPdpUpdateListener extends ScoListener<PdpUpdate> {
37 private static final Logger LOGGER = LoggerFactory.getLogger(XacmlPdpStateChangeListener.class);
39 private final XacmlState state;
41 private final XacmlPdpHearbeatPublisher heartbeat;
43 private final XacmlPdpUpdatePublisher publisher;
46 * Constructs the object.
48 * @param client used to send back response after receiving state change message
49 * @param state tracks the state of this PDP
50 * @param heartbeat heart beat publisher
51 * @param appManager application manager
53 public XacmlPdpUpdateListener(TopicSinkClient client, XacmlState state, XacmlPdpHearbeatPublisher heartbeat,
54 XacmlPdpApplicationManager appManager) {
55 super(PdpUpdate.class);
57 this.heartbeat = heartbeat;
58 this.publisher = new XacmlPdpUpdatePublisher(client, state, appManager);
62 public void onTopicEvent(CommInfrastructure infra, String topic, StandardCoderObject sco, PdpUpdate message) {
65 if (!state.shouldHandle(message)) {
66 LOGGER.debug("PDP update message discarded - {}:{}", message.getName(), message.getRequestId());
70 LOGGER.info("PDP update message has been received from the PAP - {}", message);
71 publisher.handlePdpUpdate(message);
72 heartbeat.restart(message.getPdpHeartbeatIntervalMs());
74 } catch (final Exception e) {
75 LOGGER.error("failed to handle the PDP Update message.", e);