MetricDatum.java

// Copyright 2016 Twitter. 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.

package com.twitter.heron.metricscachemgr.metricscache.query;

import java.util.List;

import com.google.common.collect.ImmutableList;

/**
 * immutable data bag for metric datum
 * metric locator: <componentName, instanceId, metricName>
 * metric value list: metricValue (use immutable getter)
 */
public final class MetricDatum {
  private final String componentName;
  private final String instanceId;
  private final String metricName;
  private final ImmutableList<MetricTimeRangeValue> metricValue;

  public MetricDatum(String componentName, String instanceId, String metricName,
                     List<MetricTimeRangeValue> metricValue) {
    this.componentName = componentName;
    this.instanceId = instanceId;
    this.metricName = metricName;
    this.metricValue = ImmutableList.copyOf(metricValue);
  }

  public String getComponentName() {
    return componentName;
  }

  public String getInstanceId() {
    return instanceId;
  }

  public String getMetricName() {
    return metricName;
  }

  public List<MetricTimeRangeValue> getMetricValue() {
    return metricValue;
  }
}