2 * ========================LICENSE_START=================================
5 * Copyright (C) 2019 Nordix Foundation
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ========================LICENSE_END===================================
21 package org.oransc.policyagent.dmaap;
23 import java.io.IOException;
24 import java.util.Properties;
25 import javax.annotation.PostConstruct;
26 import org.onap.dmaap.mr.client.MRClientFactory;
27 import org.onap.dmaap.mr.client.MRConsumer;
28 import org.onap.dmaap.mr.client.response.MRConsumerResponse;
29 import org.oransc.policyagent.configuration.ApplicationConfig;
30 import org.slf4j.Logger;
31 import org.slf4j.LoggerFactory;
32 import org.springframework.beans.factory.annotation.Autowired;
33 import org.springframework.scheduling.annotation.EnableScheduling;
34 import org.springframework.scheduling.annotation.Scheduled;
35 import org.springframework.stereotype.Component;
39 public class DmaapMessageConsumerImpl implements DmaapMessageConsumer {
41 private static final Logger logger = LoggerFactory.getLogger(DmaapMessageConsumerImpl.class);
43 private boolean alive = false;
44 private final ApplicationConfig applicationConfig;
45 protected MRConsumer consumer;
46 private MRConsumerResponse response = null;
48 private DmaapMessageHandler dmaapMessageHandler;
51 public DmaapMessageConsumerImpl(ApplicationConfig applicationConfig) {
52 this.applicationConfig = applicationConfig;
55 @Scheduled(fixedRate = 1000 * 10) // , initialDelay=60000)
59 * if (!alive) { init(); }
63 Iterable<String> dmaapMsgs = fetchAllMessages();
64 logger.debug("Fetched all the messages from DMAAP and will start to process the messages");
65 for (String msg : dmaapMsgs) {
68 } catch (Exception e) {
69 logger.error("{}: cannot fetch because of ", this, e.getMessage(), e);
74 private Iterable<String> fetchAllMessages() {
75 response = consumer.fetchWithReturnConsumerResponse();
76 if (response == null) {
77 logger.warn("{}: DMaaP NULL response received", this);
79 logger.debug("DMaaP consumer received {} : {}", response.getResponseCode(), response.getResponseMessage());
80 if (!"200".equals(response.getResponseCode())) {
81 logger.error("DMaaP consumer received: {} : {}", response.getResponseCode(),
82 response.getResponseMessage());
85 return response.getActualMessages();
91 Properties dmaapConsumerProperties = applicationConfig.getDmaapConsumerConfig();
92 Properties dmaapPublisherProperties = applicationConfig.getDmaapPublisherConfig();
93 // No need to start if there is no configuration.
94 if (dmaapConsumerProperties == null || dmaapPublisherProperties == null || dmaapConsumerProperties.size() == 0
95 || dmaapPublisherProperties.size() == 0) {
96 logger.error("DMaaP properties Failed to Load");
100 logger.debug("Creating DMAAP Client");
101 consumer = MRClientFactory.createConsumer(dmaapConsumerProperties);
103 } catch (IOException e) {
104 logger.error("Exception occurred while creating Dmaap Consumer", e);
109 public void processMsg(String msg) throws Exception {
110 logger.debug("Message Reveived from DMAAP : {}", msg);
111 // Call the concurrent Task executor to handle the incoming request
112 dmaapMessageHandler.handleDmaapMsg(msg);
116 public boolean isAlive() {
121 public void stopConsumer() {