package org.oransc.policyagent.dmaap;
+import com.google.common.collect.Iterables;
+
+import java.io.FileNotFoundException;
import java.io.IOException;
+import java.time.Duration;
import java.util.Properties;
-import javax.annotation.PostConstruct;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+import org.onap.dmaap.mr.client.MRBatchingPublisher;
import org.onap.dmaap.mr.client.MRClientFactory;
import org.onap.dmaap.mr.client.MRConsumer;
import org.onap.dmaap.mr.client.response.MRConsumerResponse;
+import org.oransc.policyagent.clients.AsyncRestClient;
import org.oransc.policyagent.configuration.ApplicationConfig;
+import org.oransc.policyagent.exceptions.ServiceException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.scheduling.annotation.EnableScheduling;
-import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
@Component
-@EnableScheduling
-public class DmaapMessageConsumerImpl implements DmaapMessageConsumer {
+public class DmaapMessageConsumerImpl implements Runnable {
private static final Logger logger = LoggerFactory.getLogger(DmaapMessageConsumerImpl.class);
- private boolean alive = false;
+ final Duration ERROR_TIMEOUT = Duration.ofSeconds(30);
+ final Duration TIME_BETWEEN_DMAAP_POLLS = Duration.ofSeconds(10);
private final ApplicationConfig applicationConfig;
- protected MRConsumer consumer;
- private MRConsumerResponse response = null;
- @Autowired
- private DmaapMessageHandler dmaapMessageHandler;
+
+ @Value("${server.port}")
+ private int localServerPort;
@Autowired
public DmaapMessageConsumerImpl(ApplicationConfig applicationConfig) {
this.applicationConfig = applicationConfig;
+
+ Thread thread = new Thread(this);
+ thread.start();
+ }
+
+ private boolean isDmaapConfigured() {
+ Properties consumerCfg = applicationConfig.getDmaapConsumerConfig();
+ Properties producerCfg = applicationConfig.getDmaapPublisherConfig();
+ return (consumerCfg != null && consumerCfg.size() > 0 && producerCfg != null && producerCfg.size() > 0);
}
- @Scheduled(fixedRate = 1000 * 10) // , initialDelay=60000)
@Override
public void run() {
- /*
- * if (!alive) { init(); }
- */
- if (this.alive) {
+ while (sleep(TIME_BETWEEN_DMAAP_POLLS) && isDmaapConfigured()) {
try {
Iterable<String> dmaapMsgs = fetchAllMessages();
- logger.debug("Fetched all the messages from DMAAP and will start to process the messages");
- for (String msg : dmaapMsgs) {
- processMsg(msg);
+ if (dmaapMsgs != null && Iterables.size(dmaapMsgs) > 0) {
+ logger.debug("Fetched all the messages from DMAAP and will start to process the messages");
+ for (String msg : dmaapMsgs) {
+ processMsg(msg);
+ }
}
} catch (Exception e) {
logger.error("{}: cannot fetch because of ", this, e.getMessage(), e);
+ sleep(ERROR_TIMEOUT);
}
}
}
- private Iterable<String> fetchAllMessages() {
- response = consumer.fetchWithReturnConsumerResponse();
- if (response == null) {
- logger.warn("{}: DMaaP NULL response received", this);
+ private Iterable<String> fetchAllMessages() throws ServiceException, FileNotFoundException, IOException {
+ Properties dmaapConsumerProperties = this.applicationConfig.getDmaapConsumerConfig();
+ MRConsumer consumer = MRClientFactory.createConsumer(dmaapConsumerProperties);
+ MRConsumerResponse response = consumer.fetchWithReturnConsumerResponse();
+ if (response == null || !"200".equals(response.getResponseCode())) {
+ throw new ServiceException("DMaaP NULL response received");
} else {
logger.debug("DMaaP consumer received {} : {}", response.getResponseCode(), response.getResponseMessage());
- if (!"200".equals(response.getResponseCode())) {
- logger.error("DMaaP consumer received: {} : {}", response.getResponseCode(),
- response.getResponseMessage());
- }
- }
- return response.getActualMessages();
- }
-
- @PostConstruct
- @Override
- public void init() {
- Properties dmaapConsumerProperties = applicationConfig.getDmaapConsumerConfig();
- Properties dmaapPublisherProperties = applicationConfig.getDmaapPublisherConfig();
- // No need to start if there is no configuration.
- if (dmaapConsumerProperties == null || dmaapPublisherProperties == null || dmaapConsumerProperties.size() == 0
- || dmaapPublisherProperties.size() == 0) {
- logger.error("DMaaP properties Failed to Load");
- return;
- }
- try {
- logger.debug("Creating DMAAP Client");
- consumer = MRClientFactory.createConsumer(dmaapConsumerProperties);
- this.alive = true;
- } catch (IOException e) {
- logger.error("Exception occurred while creating Dmaap Consumer", e);
+ return response.getActualMessages();
}
}
- @Override
- public void processMsg(String msg) throws Exception {
+ private void processMsg(String msg) throws Exception {
logger.debug("Message Reveived from DMAAP : {}", msg);
- // Call the concurrent Task executor to handle the incoming request
- dmaapMessageHandler.handleDmaapMsg(msg);
+ createDmaapMessageHandler().handleDmaapMsg(msg);
}
- @Override
- public boolean isAlive() {
- return alive;
+ private DmaapMessageHandler createDmaapMessageHandler() throws FileNotFoundException, IOException {
+ String agentBaseUrl = "http://localhost:" + this.localServerPort;
+ AsyncRestClient agentClient = new AsyncRestClient(agentBaseUrl);
+ Properties dmaapPublisherProperties = applicationConfig.getDmaapPublisherConfig();
+ MRBatchingPublisher producer = MRClientFactory.createBatchingPublisher(dmaapPublisherProperties);
+
+ return new DmaapMessageHandler(producer, this.applicationConfig, agentClient);
}
- @Override
- public void stopConsumer() {
- alive = false;
+ private boolean sleep(Duration duration) {
+ CountDownLatch sleep = new CountDownLatch(1);
+ try {
+ sleep.await(duration.toMillis(), TimeUnit.MILLISECONDS);
+ return true;
+ } catch (Exception e) {
+ logger.error("msg", e);
+ return false;
+ }
}
}
Code Review / nonrtric.git / blobdiff