io.symcpe.hendrix.alerts.HttpBolt Maven / Gradle / Ivy
/**
* Copyright 2016 Symantec Corporation.
*
* 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.
*/
package io.symcpe.hendrix.alerts;
import java.util.Map;
import backtype.storm.task.OutputCollector;
import backtype.storm.task.TopologyContext;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.base.BaseRichBolt;
import backtype.storm.tuple.Tuple;
import io.symcpe.hendrix.alerts.media.HttpService;
import io.symcpe.hendrix.storm.StormContextUtil;
import io.symcpe.wraith.Constants;
import io.symcpe.wraith.actions.alerts.Alert;
/**
* @author ambud_sharma
*/
public class HttpBolt extends BaseRichBolt {
private static final long serialVersionUID = 1L;
private transient OutputCollector collector;
private transient HttpService httpService;
@SuppressWarnings("rawtypes")
@Override
public void prepare(Map stormConf, TopologyContext context, OutputCollector collector) {
this.collector = collector;
this.httpService = new HttpService();
}
@Override
public void execute(Tuple tuple) {
Alert alert = (Alert) tuple.getValueByField(Constants.FIELD_ALERT);
try {
httpService.sendHttpCallback(alert);
} catch (AlertDeliveryException e) {
StormContextUtil.emitErrorTuple(collector, tuple, HttpBolt.class, alert.toString(),
"Failed to make http callback", e);
}
collector.ack(tuple);
}
@Override
public void declareOutputFields(OutputFieldsDeclarer declarer) {
StormContextUtil.declareErrorStream(declarer);
}
/**
* @return the httpService
*/
protected HttpService getHttpService() {
return httpService;
}
/**
* @param httpService the httpService to set
*/
protected void setHttpService(HttpService httpService) {
this.httpService = httpService;
}
}