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package com.sun.grizzly.cometd.bayeux;

/**
 * Bayeux Subscribe implementation. 
 * See http://svn.xantus.org/shortbus/trunk/bayeux/protocol.txt for the technical
 * details.
 *
 *	// Subscribing and unsubscribing to channel is straightforward. Subscribing:
 *
 *	//-----------------
 *	// CLIENT -> SERVER
 *	//-----------------
 *
 *	[
 *		{
 *			"channel":		"/meta/subscribe",
 *			"subscription":	"/some/other/channel",
 *			// optional
 *			"authToken":	"SOME_NONCE_PREVIOUSLY_PROVIDED_BY_SERVER"
 *		}
 *		// , ...
 *	]
 *
 *	// response to subscription:
 *
 *	//-----------------
 *	// SERVER -> CLIENT
 *	//-----------------
 *
 *	[
 *		{
 *			"channel":		"/meta/subscribe",
 *			"subscription":	"/some/other/channel",
 *			"successful":	true,
 *			"advice":		{
 *				"transport":	{
 *					retry: true, // or false
 *				}
 *			},
 *			"clientId":		"SOME_UNIQUE_CLIENT_ID",
 *			"error":		"",
 *			// optional
 *			"authToken":	"SOME_NONCE"
 *		}
 *		// , ...
 *	]
 * @author Jeanfrancois Arcand
 */
public class Subscribe extends VerbBase{
    
    protected String subscription;
    
    protected Advice advise;
    
    protected String clientId;
    
    protected String error = "";    
    
    public Subscribe() {
        type = Verb.SUBSCRIBE;
    }

    public String getSubscription() {
        return subscription;
    }

    public void setSubscription(String subscription) {
        this.subscription = subscription;
    }


    public String toJSON() {        
        return "[{"     
                + "\"subscription\":\"" + subscription + "\","                 
                + "\"error\":\"" + error + "\","
                + "\"successful\":" + successful + ","                
                + "\"channel\":\"" + channel + "\""
                + "}]\n";
    }

    public Advice getAdvise() {
        return advise;
    }

    public void setAdvise(Advice advise) {
        this.advise = advise;
    }

    public String getClientId() {
        return clientId;
    }

    public void setClientId(String clientId) {
        this.clientId = clientId;
    }

    public String getError() {
        return error;
    }

    public void setError(String error) {
        this.error = error;
    }
    
}