2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2019 Nordix Foundation.
4 * Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
5 * ================================================================================
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * SPDX-License-Identifier: Apache-2.0
19 * ============LICENSE_END=========================================================
22 package org.onap.policy.models.sim.pdp.handler;
24 import java.util.List;
25 import org.onap.policy.common.endpoints.event.comm.TopicSink;
26 import org.onap.policy.common.utils.services.Registry;
27 import org.onap.policy.models.pdp.concepts.PdpResponseDetails;
28 import org.onap.policy.models.pdp.concepts.PdpStatus;
29 import org.onap.policy.models.pdp.concepts.PdpUpdate;
30 import org.onap.policy.models.pdp.enums.PdpResponseStatus;
31 import org.onap.policy.models.pdp.enums.PdpState;
32 import org.onap.policy.models.sim.pdp.PdpSimulatorConstants;
33 import org.onap.policy.models.sim.pdp.comm.PdpStatusPublisher;
36 * This class supports the handling of pdp update messages.
38 * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
40 public class PdpUpdateMessageHandler {
43 * Method which handles a pdp update event from PAP.
45 * @param pdpUpdateMsg pdp update message
47 public void handlePdpUpdateEvent(final PdpUpdate pdpUpdateMsg) {
48 final PdpMessageHandler pdpMessageHandler = new PdpMessageHandler();
49 final PdpStatus pdpStatusContext = Registry.get(PdpSimulatorConstants.REG_PDP_STATUS_OBJECT, PdpStatus.class);
50 PdpResponseDetails pdpResponseDetails = null;
51 if (pdpUpdateMsg.appliesTo(pdpStatusContext.getName(), pdpStatusContext.getPdpGroup(),
52 pdpStatusContext.getPdpSubgroup())) {
53 final PdpStatusPublisher pdpStatusPublisher = Registry.get(PdpSimulatorConstants.REG_PDP_STATUS_PUBLISHER);
54 if (checkIfAlreadyHandled(pdpUpdateMsg, pdpStatusContext)) {
55 pdpResponseDetails = pdpMessageHandler.createPdpResonseDetails(pdpUpdateMsg.getRequestId(),
56 PdpResponseStatus.SUCCESS, "Pdp already updated");
58 if (null != pdpUpdateMsg.getPdpHeartbeatIntervalMs() && pdpUpdateMsg.getPdpHeartbeatIntervalMs() > 0
59 && pdpStatusPublisher.getInterval() != pdpUpdateMsg.getPdpHeartbeatIntervalMs()) {
60 updateInterval(pdpUpdateMsg.getPdpHeartbeatIntervalMs());
62 pdpStatusContext.setPdpGroup(pdpUpdateMsg.getPdpGroup());
63 pdpStatusContext.setPdpSubgroup(pdpUpdateMsg.getPdpSubgroup());
65 .setPolicies(new PdpMessageHandler().getToscaPolicyIdentifiers(pdpUpdateMsg.getPolicies()));
66 if (pdpStatusContext.getState().equals(PdpState.ACTIVE) && !pdpUpdateMsg.getPolicies().isEmpty()) {
67 pdpResponseDetails = pdpMessageHandler.createPdpResonseDetails(pdpUpdateMsg.getRequestId(),
68 PdpResponseStatus.SUCCESS, "Pdp engine started and policies are running.");
70 Registry.registerOrReplace(PdpSimulatorConstants.REG_PDP_TOSCA_POLICY_LIST, pdpUpdateMsg.getPolicies());
71 if (null == pdpResponseDetails) {
72 pdpResponseDetails = pdpMessageHandler.createPdpResonseDetails(pdpUpdateMsg.getRequestId(),
73 PdpResponseStatus.SUCCESS, "Pdp update successful.");
76 final PdpStatusPublisher pdpStatusPublisherTemp =
77 Registry.get(PdpSimulatorConstants.REG_PDP_STATUS_PUBLISHER);
78 final PdpStatus pdpStatus = pdpMessageHandler.createPdpStatusFromContext();
79 pdpStatus.setResponse(pdpResponseDetails);
80 pdpStatus.setDescription("Pdp status response message for PdpUpdate");
81 pdpStatusPublisherTemp.send(pdpStatus);
87 * Method checks if the Pdp update message is already handled by checking the values in the context.
89 * @param pdpUpdateMsg pdp update message received from pap
90 * @param pdpStatusContext values saved in context memory
91 * @return boolean flag which tells if the information is same or not
93 private boolean checkIfAlreadyHandled(final PdpUpdate pdpUpdateMsg, final PdpStatus pdpStatusContext) {
94 if (pdpStatusContext.getPdpGroup() == null
95 || !pdpStatusContext.getPdpGroup().equals(pdpUpdateMsg.getPdpGroup())) {
99 if (pdpStatusContext.getPdpSubgroup() == null
100 || !pdpStatusContext.getPdpSubgroup().equals(pdpUpdateMsg.getPdpSubgroup())) {
104 return null != pdpStatusContext.getPolicies() && new PdpMessageHandler()
105 .getToscaPolicyIdentifiers(pdpUpdateMsg.getPolicies()).equals(pdpStatusContext.getPolicies());
109 * Method to update the time interval used by the timer task.
111 * @param interval time interval received in the pdp update message from pap
113 public void updateInterval(final long interval) {
114 final PdpStatusPublisher pdpStatusPublisher = Registry.get(PdpSimulatorConstants.REG_PDP_STATUS_PUBLISHER);
115 pdpStatusPublisher.terminate();
116 final List<TopicSink> topicSinks = Registry.get(PdpSimulatorConstants.REG_PDP_TOPIC_SINKS);
117 Registry.registerOrReplace(PdpSimulatorConstants.REG_PDP_STATUS_PUBLISHER,
118 new PdpStatusPublisher(topicSinks, interval));