/**
 * Copyright (C) 2010-14 diirt developers. See COPYRIGHT.TXT
 * All rights reserved. Use is subject to license terms. See LICENSE.TXT
 */
package org.diirt.datasource.timecache.source;

import java.time.Instant;

import org.diirt.datasource.timecache.Data;
import org.diirt.vtype.VType;

/**
 * {@link Data} from {@link DataSource}.
 * @author Fred Arnaud (Sopra Group) - ITER
 */
public class SourceData implements Data {

    private final Instant timestamp;
    private final VType value;

    public SourceData(Instant timestamp, VType value) {
        this.timestamp = timestamp;
        this.value = value;
    }

    /** {@inheritDoc} */
    @Override
    public Instant getTimestamp() {
        return timestamp;
    }

        /** {@inheritDoc} */
        @Override
        public VType getValue() {
                return value;
        }

        /** {@inheritDoc} */
        @Override
        public int hashCode() {
                final int prime = 31;
                int result = 1;
                result = prime * result
                                + ((timestamp == null) ? 0 : timestamp.hashCode());
                return result;
        }

        /** {@inheritDoc} */
        @Override
        public boolean equals(Object obj) {
                if (this == obj)
                        return true;
                if (obj == null)
                        return false;
                if (getClass() != obj.getClass())
                        return false;
                SourceData other = (SourceData) obj;
                if (timestamp == null) {
                        if (other.timestamp != null)
                                return false;
                } else if (!timestamp.equals(other.timestamp))
                        return false;
                return true;
        }

        /** {@inheritDoc} */
        @Override
        public int compareTo(Data d) {
                return timestamp.compareTo(d.getTimestamp());
        }

        /** {@inheritDoc} */
        @Override
        public String toString() {
                return "SourceData [timestamp=" + timestamp + ", value=" + value + "]";
        }

}