org.apache.hadoop.metrics2.impl.AbstractMetricsRecord.java Source code

Introduction

Here is the source code for org.apache.hadoop.metrics2.impl.AbstractMetricsRecord.java

Source

/*
 * 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.hadoop.metrics2.impl;

import com.google.common.base.Objects;
import com.google.common.collect.Iterables;

import org.apache.hadoop.metrics2.MetricsRecord;

abstract class AbstractMetricsRecord implements MetricsRecord {

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof MetricsRecord) {
            final MetricsRecord other = (MetricsRecord) obj;
            return Objects.equal(timestamp(), other.timestamp()) && Objects.equal(name(), other.name())
                    && Objects.equal(description(), other.description()) && Objects.equal(tags(), other.tags())
                    && Iterables.elementsEqual(metrics(), other.metrics());
        }
        return false;
    }

    // Should make sense most of the time when the record is used as a key
    @Override
    public int hashCode() {
        return Objects.hashCode(name(), description(), tags());
    }

    @Override
    public String toString() {
        return Objects.toStringHelper(this).add("timestamp", timestamp()).add("name", name())
                .add("description", description()).add("tags", tags()).add("metrics", Iterables.toString(metrics()))
                .toString();
    }
}