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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.*;
class UEBMessagingService implements MessagingService {
private Consumer consumer;
private Producer producer;
private final String DEFAULT_READ_TIMEOUT_MS = "60000";
private final String DEFAULT_READ_LIMIT = "1000";
private int readLimit;
private final EELFLogger LOG = EELFManager.getInstance().getLogger(UEBMessagingService.class);
@SuppressWarnings("Since15")
public void init(Properties props) throws IOException, GeneralSecurityException, NoSuchFieldException, IllegalAccessException {
if (props != null) {
String readTopic = props.getProperty(UEBPropertiesKeys.TOPIC_READ);
String writeTopic = props.getProperty(UEBPropertiesKeys.TOPIC_WRITE);
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>();
String hostNames = props.getProperty(UEBPropertiesKeys.HOSTS);
if (hostNames != null && !hostNames.isEmpty()) {
for (String name : hostNames.split(",")) {
pool.add(name);
}
}
//generate consumer id and group - same value for both
String consumerName = UUID.randomUUID().toString();
String consumerID = consumerName;
//create consumer and producer
consumer = new ConsumerImpl(pool, readTopic, consumerName, consumerID, readTimeout, apiKey, apiSecret);
producer = new ProducerImpl(pool, writeTopic, apiKey, apiSecret);
//initial consumer registration
try {
consumer.registerForRead();
}catch(Exception e){
LOG.error("Message consumer failed to register client "+consumerID);
}
}
}
public void send(String partition, String body) throws IOException {
producer.post(partition, body);
}
public List<String> fetch() throws IOException {
return consumer.fetch(readLimit);
}
public List<String> fetch(int limit) throws IOException {
return consumer.fetch(limit);
}
@Override
public void close() {
consumer.close();
producer.close();
}
}
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