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/*-
* ============LICENSE_START=======================================================
* policy-endpoints
* ================================================================================
* 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.policy.drools.event.comm.bus.internal;
import java.util.List;
import org.openecomp.policy.drools.event.comm.Topic;
import org.openecomp.policy.drools.event.comm.bus.DmaapTopicSource;
import org.openecomp.policy.common.logging.eelf.PolicyLogger;
/**
* This topic reader implementation specializes in reading messages
* over DMAAP topic and notifying its listeners
*/
public class SingleThreadedDmaapTopicSource extends SingleThreadedBusTopicSource
implements DmaapTopicSource, Runnable {
protected final String userName;
protected final String password;
private String className = SingleThreadedDmaapTopicSource.class.getName();
/**
*
* @param servers DMaaP servers
* @param topic DMaaP Topic to be monitored
* @param apiKey DMaaP API Key (optional)
* @param apiSecret DMaaP API Secret (optional)
* @param consumerGroup DMaaP Reader Consumer Group
* @param consumerInstance DMaaP Reader Instance
* @param fetchTimeout DMaaP fetch timeout
* @param fetchLimit DMaaP fetch limit
* @throws IllegalArgumentException An invalid parameter passed in
*/
public SingleThreadedDmaapTopicSource(List<String> servers, String topic,
String apiKey, String apiSecret,
String userName, String password,
String consumerGroup, String consumerInstance,
int fetchTimeout, int fetchLimit)
throws IllegalArgumentException {
super(servers, topic, apiKey, apiSecret,
consumerGroup, consumerInstance,
fetchTimeout, fetchLimit);
this.userName = userName;
this.password = password;
try {
this.init();
} catch (Exception e) {
e.printStackTrace();
throw new IllegalArgumentException(e);
}
}
/**
* Initialize the Cambria or MR Client
*/
@Override
public void init() throws Exception {
if (this.userName == null || this.userName.isEmpty() ||
this.password == null || this.password.isEmpty()) {
this.consumer =
new BusConsumer.CambriaConsumerWrapper(this.servers, this.topic,
this.apiKey, this.apiSecret,
this.consumerGroup, this.consumerInstance,
this.fetchTimeout, this.fetchLimit);
} else {
this.consumer =
new BusConsumer.DmaapConsumerWrapper(this.servers, this.topic,
this.apiKey, this.apiSecret,
this.userName, this.password,
this.consumerGroup, this.consumerInstance,
this.fetchTimeout, this.fetchLimit);
}
PolicyLogger.info(className, "CREATION: " + this);
}
/**
* {@inheritDoc}
*/
@Override
public CommInfrastructure getTopicCommInfrastructure() {
return Topic.CommInfrastructure.DMAAP;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append("SingleThreadedDmaapTopicSource [userName=").append(userName).append(", password=")
.append((password == null || password.isEmpty()) ? "-" : password.length())
.append(", getTopicCommInfrastructure()=").append(getTopicCommInfrastructure())
.append(", toString()=").append(super.toString()).append("]");
return builder.toString();
}
}
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