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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
* ============LICENSE_END=========================================================
*/
package org.onap.appc.client.impl.protocol;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Properties;
import java.util.UUID;
class UEBMessagingService implements MessagingService {
private final EELFLogger logger = EELFManager.getInstance().getLogger(UEBMessagingService.class);
private static final String DEFAULT_READ_TIMEOUT_MS = "60000";
private static final String DEFAULT_READ_LIMIT = "1000";
private static final String DEFAULT_READ_TOPIC = "client-read";
private static final String DEFAULT_WRITE_TOPIC = "client-write";
private Consumer consumer;
private Producer producer;
private int readLimit;
@Override
@SuppressWarnings("Since15")
public void init(Properties props)
throws IOException, GeneralSecurityException, NoSuchFieldException, IllegalAccessException {
if (props != null) {
String readTopic = null;
String writeTopic = null;
String cType = props.getProperty(UEBPropertiesKeys.CONTROLLER_TYPE); //CONTROLLER_TYPE = "controllerType"
if (cType != null && cType.length()!= 0 && (!cType.equals("APPC")))
{
logger.debug("Using controller type " + cType + " for topic properties");
readTopic = props.getProperty(cType + "-" + UEBPropertiesKeys.TOPIC_READ);
if(readTopic == null) {
logger.error("Error reading property '"+ cType + "-" + UEBPropertiesKeys.TOPIC_READ + "' defaulting to " + DEFAULT_READ_TOPIC);
readTopic = DEFAULT_READ_TOPIC;
}
writeTopic = props.getProperty(cType + "-" + UEBPropertiesKeys.TOPIC_WRITE);
if(writeTopic == null) {
logger.error("Error reading property '"+ cType + "-" + UEBPropertiesKeys.TOPIC_READ + "' defaulting to " + DEFAULT_WRITE_TOPIC);
writeTopic = DEFAULT_WRITE_TOPIC;
}
}
else {
readTopic = props.getProperty(UEBPropertiesKeys.TOPIC_READ); //TOPIC_READ = "topic.read"
if(readTopic == null) {
logger.error("Error reading property '"+ UEBPropertiesKeys.TOPIC_READ + "' defaulting to " + DEFAULT_READ_TOPIC);
readTopic = DEFAULT_READ_TOPIC;
}
writeTopic = props.getProperty(UEBPropertiesKeys.TOPIC_WRITE); //TOPIC_WRITE = "topic.write"
if(writeTopic == null) {
logger.error("Error reading property '" + UEBPropertiesKeys.TOPIC_READ + "' defaulting to " + DEFAULT_WRITE_TOPIC);
writeTopic = DEFAULT_WRITE_TOPIC;
}
}
logger.debug("Using topics: Read = '" + readTopic + "' Write = '" + writeTopic + "'");
String apiKey = props.getProperty(UEBPropertiesKeys.AUTH_USER);
String apiSecret = props.getProperty(UEBPropertiesKeys.AUTH_SECRET);
String readTimeoutString = props.getProperty(UEBPropertiesKeys.TOPIC_READ_TIMEOUT, DEFAULT_READ_TIMEOUT_MS);
Integer readTimeout = Integer.parseInt(readTimeoutString);
String readLimitString = props.getProperty(UEBPropertiesKeys.READ_LIMIT, DEFAULT_READ_LIMIT);
readLimit = Integer.parseInt(readLimitString);
//get hosts pool
Collection<String> pool = new HashSet<>();
String hostNames = props.getProperty(UEBPropertiesKeys.HOSTS);
if (hostNames != null && !hostNames.isEmpty()) {
pool.addAll(Arrays.asList(hostNames.split(",")));
}
//generate consumer id and group - same value for both
String consumerName = UUID.randomUUID().toString();
//create consumer and producer
consumer = new ConsumerImpl(pool, readTopic, consumerName, consumerName, readTimeout, apiKey, apiSecret);
producer = new ProducerImpl(pool, writeTopic, apiKey, apiSecret);
//initial consumer registration
try {
consumer.registerForRead();
} catch (Exception e) {
logger.error("Message consumer failed to register client " + consumerName, e);
}
}
}
@Override
public void send(String partition, String body) throws IOException {
producer.post(partition, body);
}
@Override
public List<String> fetch() throws IOException {
return consumer.fetch(readLimit);
}
@Override
public List<String> fetch(int limit) throws IOException {
return consumer.fetch(limit);
}
@Override
public void close() {
consumer.close();
producer.close();
}
}
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