/
IMetricsConsumer.java
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/
IMetricsConsumer.java
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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.storm.metric.api;
import org.apache.storm.task.IErrorReporter;
import org.apache.storm.task.TopologyContext;
import java.util.Collection;
import java.util.Map;
import java.util.Objects;
public interface IMetricsConsumer {
public static class TaskInfo {
public TaskInfo() {}
public TaskInfo(String srcWorkerHost, int srcWorkerPort, String srcComponentId, int srcTaskId, long timestamp, int updateIntervalSecs) {
this.srcWorkerHost = srcWorkerHost;
this.srcWorkerPort = srcWorkerPort;
this.srcComponentId = srcComponentId;
this.srcTaskId = srcTaskId;
this.timestamp = timestamp;
this.updateIntervalSecs = updateIntervalSecs;
}
public String srcWorkerHost;
public int srcWorkerPort;
public String srcComponentId;
public int srcTaskId;
public long timestamp;
public int updateIntervalSecs;
}
// We can't move this to outside without breaking backward compatibility.
public static class DataPoint {
public DataPoint() {}
public DataPoint(String name, Object value) {
this.name = name;
this.value = value;
}
@Override
public String toString() {
return "[" + name + " = " + value + "]";
}
public String name;
public Object value;
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof DataPoint)) return false;
DataPoint dataPoint = (DataPoint) o;
return Objects.equals(name, dataPoint.name) && Objects.deepEquals(value, dataPoint.value);
}
@Override
public int hashCode() {
int result = name != null ? name.hashCode() : 0;
result = 31 * result + (value != null ? value.hashCode() : 0);
return result;
}
}
void prepare(Map stormConf, Object registrationArgument, TopologyContext context, IErrorReporter errorReporter);
void handleDataPoints(TaskInfo taskInfo, Collection<DataPoint> dataPoints);
void cleanup();
}