com.hpcloud.mon.common.model.metric.Metric.java Source code

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Here is the source code for com.hpcloud.mon.common.model.metric.Metric.java

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/*
 * Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
 *
 * 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.hpcloud.mon.common.model.metric;

import java.io.Serializable;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Preconditions;

import javax.annotation.Nullable;
import javax.validation.constraints.NotNull;
import java.util.Arrays;
import java.util.Map;

/**
 * Metric with definition information flattened alongside value information.
 */
public class Metric implements Serializable {

    private static final long serialVersionUID = 3455749495426525634L;

    public String name;
    public Map<String, String> dimensions;
    public long timestamp;
    public double value;
    public double[][] timeValues = null;
    private MetricDefinition definition;

    public Metric() {
    }

    public Metric(@NotNull MetricDefinition definition, long timestamp, double value) {
        this.definition = Preconditions.checkNotNull(definition, "definition");
        this.name = definition.name;
        setDimensions(definition.dimensions);
        this.timestamp = timestamp;
        this.value = Preconditions.checkNotNull(value, "value");
    }

    public Metric(String name, @Nullable Map<String, String> dimensions, long timestamp, double value) {
        this.name = Preconditions.checkNotNull(name, "name");
        setDimensions(dimensions);
        this.timestamp = timestamp;
        this.value = value;
    }

    public Metric(String name, @Nullable Map<String, String> dimensions, long timestamp, double[][] timeValues) {
        this.name = Preconditions.checkNotNull(name, "name");
        setDimensions(dimensions);
        this.timestamp = Preconditions.checkNotNull(timestamp, "timestamp");
        this.timeValues = Preconditions.checkNotNull(timeValues, "timeValues");
    }

    /**
     * Returns the MetricDefinition.
     */
    public MetricDefinition definition() {
        if (definition == null)
            definition = new MetricDefinition(name, dimensions);
        return definition;
    }

    @Override
    public String toString() {
        return "Metric{" + "name='" + name + '\'' + ", dimensions=" + dimensions + ", timeStamp='" + timestamp
                + '\'' + ", value=" + value + ", timeValues=" + Arrays.toString(timeValues) + '}';
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Metric other = (Metric) obj;
        if (dimensions == null) {
            if (other.dimensions != null)
                return false;
        } else if (!dimensions.equals(other.dimensions))
            return false;
        if (name == null) {
            if (other.name != null)
                return false;
        } else if (!name.equals(other.name))
            return false;
        // Note - Deep Equals is used here
        if (!Arrays.deepEquals(timeValues, other.timeValues))
            return false;
        if (timestamp != other.timestamp)
            return false;
        if (Double.doubleToLongBits(value) != Double.doubleToLongBits(other.value))
            return false;
        return true;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((dimensions == null) ? 0 : dimensions.hashCode());
        result = prime * result + ((name == null) ? 0 : name.hashCode());
        // Note Deep hash code is used here
        result = prime * result + Arrays.deepHashCode(timeValues);
        result = prime * result + (int) (timestamp ^ (timestamp >>> 32));
        long temp;
        temp = Double.doubleToLongBits(value);
        result = prime * result + (int) (temp ^ (temp >>> 32));
        return result;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Map<String, String> getDimensions() {
        return dimensions;
    }

    public void setDimensions(Map<String, String> dimensions) {
        this.dimensions = dimensions;
    }

    public long getTimestamp() {
        return timestamp;
    }

    public void setTimestamp(long timestamp) {
        this.timestamp = timestamp;
    }

    public double getValue() {
        return value;
    }

    public void setValue(double value) {
        this.value = value;
    }

    @JsonProperty("time_values")
    public double[][] getTimeValues() {
        return timeValues;
    }

    @JsonProperty("time_values")
    public void setTimeValues(double[][] timeValues) {
        this.timeValues = timeValues;
    }
}