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/*-
* ============LICENSE_START=======================================================
* openECOMP : APP-C
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights
* reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.appc.listener.LCM.impl;
import com.fasterxml.jackson.databind.JsonNode;
import org.apache.commons.lang3.StringUtils;
import org.openecomp.appc.listener.AbstractListener;
import org.openecomp.appc.listener.ListenerProperties;
import org.openecomp.appc.listener.LCM.conv.Converter;
import org.openecomp.appc.listener.LCM.model.DmaapIncomingMessage;
import org.openecomp.appc.listener.LCM.operation.ProviderOperations;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.att.eelf.i18n.EELFResourceManager;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;
import java.util.concurrent.RejectedExecutionException;
public class ListenerImpl extends AbstractListener {
private final EELFLogger LOG = EELFManager.getInstance().getLogger(ListenerImpl.class);
private long startTime = 0;
public ListenerImpl(ListenerProperties props) {
super(props);
String url = props.getProperty("provider.url");
LOG.info("DMaaP Provider Endpoint: " + url);
ProviderOperations.setUrl(url);
// Set Basic Auth
String user = props.getProperty("provider.user");
String pass = props.getProperty("provider.pass");
ProviderOperations.setAuthentication(user, pass);
}
@Override
public void run() {
// Some vars for benchmarking
startTime = System.currentTimeMillis();
LOG.info("Running DMaaP Listener");
while (run.get()) {
// Only update if the queue is low. otherwise we read in more
// messages than we need
try {
if (executor.getQueue().size() <= QUEUED_MIN) {
LOG.debug("DMaaP queue running low. Querying for more jobs");
List<DmaapIncomingMessage> messages = dmaap.getIncomingEvents(DmaapIncomingMessage.class, QUEUED_MAX);
LOG.debug(String.format("Read %d messages from dmaap", messages.size()));
for (DmaapIncomingMessage incoming : messages) {
// Acknowledge that we read the event
if (isValid(incoming)) {
String requestIdWithSubId = getRequestIdWithSubId(incoming.getBody());
LOG.info("Acknowledging Message: " + requestIdWithSubId);
// dmaap.postStatus(incoming.toOutgoing(OperationStatus.PENDING));
}
}
for (DmaapIncomingMessage incoming : messages) {
String requestIdWithSubId = getRequestIdWithSubId(incoming.getBody());
// Add to pool if still running
if (run.get()) {
if (isValid(incoming)) {
LOG.info(String.format("Adding DMaaP message to pool queue [%s]", requestIdWithSubId));
try {
executor.execute(new WorkerImpl(incoming.getRpcName(),incoming.getBody(), dmaap));
} catch (RejectedExecutionException rejectEx) {
LOG.error("Task Rejected: ", rejectEx);
}
} else {
// Badly formed message
LOG.error("Message was not valid. Rejecting message: "+incoming);
}
} else {
if (isValid(incoming)) {
LOG.info("Run stopped. Orphaning Message: " + requestIdWithSubId);
}
else {
// Badly formed message
LOG.error("Message was not valid. Rejecting message: "+incoming);
}
}
}
}
} catch (Exception e) {
LOG.error("Exception " + e.getClass().getSimpleName() + " caught in DMaaP listener");
LOG.error(EELFResourceManager.format(e));
LOG.error("DMaaP Listener logging and ignoring the exception, continue...");
}
}
LOG.info("Stopping DMaaP Listener thread");
// We've told the listener to stop
// TODO - Should we:
// 1) Put a message back on the queue indicating that APP-C never got to
// the message
// or
// 2) Let downstream figure it out after timeout between PENDING and
// ACTIVE messages
}
private boolean isValid(DmaapIncomingMessage incoming) {
return ((incoming != null) &&
incoming.getBody() != null
&& !StringUtils.isEmpty(incoming.getRpcName()));
}
@Override
public String getBenchmark() {
long time = System.currentTimeMillis();
DateFormat df = new SimpleDateFormat("HH:mm:ss");
df.setTimeZone(TimeZone.getTimeZone("UTC"));
String runningTime = df.format(new Date(time - startTime));
String out = String.format("Running for %s and completed %d jobs using %d threads.", runningTime,
executor.getCompletedTaskCount(), executor.getPoolSize());
LOG.info("***BENCHMARK*** " + out);
return out;
}
private String getRequestIdWithSubId(JsonNode event){
String requestId = "";
try {
requestId = Converter.extractRequestIdWithSubId(event);
} catch (Exception e) {
LOG.error("failed to parse request-id and sub-request-id. Json not in expected format", e);
}
return requestId;
}
}
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