package org.openlcb;

// For annotations
import net.jcip.annotations.*; 
import edu.umd.cs.findbugs.annotations.*; 

/**
 * Producer Identified message implementation
 *
 * @author  Bob Jacobsen   Copyright 2009
 * @version $Revision: 3986 $
 */
@Immutable
@ThreadSafe
public class ProducerIdentifiedMessage extends Message {

    public ProducerIdentifiedMessage(NodeID source, EventID eventID, EventState eventState) {
        super(source);
        if (eventID == null)
            throw new IllegalArgumentException("EventID cannot be null");
        this.eventID = eventID;
        this.eventState = eventState;
    }
        
    private final EventID eventID;
    private final EventState eventState;

    // because EventID is immutable, can directly return object
    public EventID getEventID() {
        return eventID;
    }

    public EventState getEventState() { return eventState; }

    /**
     * Implement message-type-specific
     * processing when this message
     * is received by a node.
     *<p>
     * Default is to do nothing.
     */
     @Override
     public void applyTo(MessageDecoder decoder, Connection sender) {
        decoder.handleProducerIdentified(this, sender);
     }

    public boolean equals(Object o) {
        if (!super.equals(o)) return false;
        ProducerIdentifiedMessage p = (ProducerIdentifiedMessage) o;
        if (!eventID.equals(p.eventID)) return false;
        return eventState == p.eventState;
    } 

    public String toString() {
        return super.toString() + " Producer Identified " + eventState.toString() + " for " + eventID.toString();
    }

    public int getMTI() { return MTI_PRODUCER_IDENTIFIED; }
}