MeasurementDTO.java

/*
 * 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.rest;


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

import java.util.Map;

import org.opennms.newts.api.Measurement;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;


/**
 * Read-only data transfer object for {@link Measurement}s.
 *
 * @author eevans
 */
@JsonSerialize(using = MeasurementDTOSerializer.class)
public class MeasurementDTO {

    private final long m_timestamp;
    private final ResourceDTO m_resource;
    private final String m_name;
    private final double m_value;
    private final Map<String, String> m_attributes;

    @JsonCreator
    public MeasurementDTO(@JsonProperty("timestamp") long timestamp, @JsonProperty("resource") ResourceDTO resource, @JsonProperty("name") String name, @JsonProperty("value") double value, @JsonProperty("attributes") Map<String, String> attributes) {
        m_timestamp = checkNotNull(timestamp, "timestamp argument");
        m_resource = checkNotNull(resource, "resource argument");
        m_name = checkNotNull(name, "name argument");
        m_value = checkNotNull(value, "value argument");
        m_attributes = attributes;
    }

    public long getTimestamp() {
        return m_timestamp;
    }

    public ResourceDTO getResource() {
        return m_resource;
    }

    public String getName() {
        return m_name;
    }

    public double getValue() {
        return m_value;
    }

    public Map<String, String> getAttributes() {
        return m_attributes;
    }

}