org.opennms.newts.api.Measurement Maven / Gradle / Ivy

Go to download
/*
 * Copyright 2014, The OpenNMS Group
 * 
 * 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 org.opennms.newts.api;


import static com.google.common.base.Preconditions.checkNotNull;

import java.io.Serializable;
import java.util.Map;

import com.google.common.base.Objects;


public class Measurement implements Element, Serializable {
    private static final long serialVersionUID = 5630616345926189648L;

    private final Timestamp m_timestamp;
    private final Resource m_resource;
    private final String m_name;
    private final double m_value;
    private final Map m_attributes;

    public Measurement(Timestamp timestamp, Resource resource, String name, double value) {
        this(timestamp, resource, name, value, null);
    }

    public Measurement(Timestamp timestamp, Resource resource, String name, double value, Map attributes) {
        m_timestamp = checkNotNull(timestamp, "timestamp");
        m_resource = checkNotNull(resource, "resource");
        m_name = checkNotNull(name, "name");
        m_value = checkNotNull(value, "value");
        m_attributes = attributes;
    }

    public Timestamp getTimestamp() {
        return m_timestamp;
    }

    public Resource getResource() {
        return m_resource;
    }

    public String getName() {
        return m_name;
    }

    public Double getValue() {
        return m_value;
    }

    public Map getAttributes() {
        return m_attributes;
    }

    @Override
    public String toString() {
        return String.format(
                "%s[timestamp=%s, resource=%s, name=%s, value=%s]",
                getClass().getSimpleName(),
                getTimestamp(),
                getResource(),
                getName(),
                getValue());
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) return false;
        if (getClass() != obj.getClass()) return false;
        final Measurement other = (Measurement) obj;
        return Objects.equal(this.m_timestamp, other.m_timestamp)
                && Objects.equal(this.m_resource, other.m_resource)
                && Objects.equal(this.m_name, other.m_name)
                && Objects.equal(this.m_value, other.m_value)
                && Objects.equal(this.m_attributes, other.m_attributes);
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(
                this.m_timestamp, this.m_resource, this.m_name, this.m_value, this.m_attributes);
    }
}