wayang-commons/wayang-utils-profile-db/src/main/java/org/apache/wayang/commons/util/profiledb/model/Measurement.java

/*
 * 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.wayang.commons.util.profiledb.model;

import java.util.Objects;

/**
 *
 * Measurement captures the value of a metric at a specific time
 */
public abstract class Measurement {

    private String id;

    /**
     * Returns implementation Class of this Measurement
     */
    public static String getTypeName(Class<? extends Measurement> measurementClass) {
        return measurementClass.getDeclaredAnnotation(Type.class).value();
    }

    /**
     * Deserialization constructor.
     */
    protected Measurement() {
    }

    public Measurement(String id) {
        this.id = id;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getType() {
        return getTypeName(this.getClass());
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Measurement that = (Measurement) o;
        return Objects.equals(id, that.id);
    }

    @Override
    public int hashCode() {
        return Objects.hash(id);
    }
}