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/**

* Contains all protocols for the system.

*/

public abstract class Protocol {

//CLient protocol messages

public final static String LIST_TOKEN = "LIST"; // Also for Controller and DStore.

public final static String STORE_TOKEN = "STORE"; // Also for DStore.

public final static String LOAD_TOKEN = "LOAD";

public final static String LOAD_DATA_TOKEN = "LOAD_DATA";

public final static String RELOAD_TOKEN = "RELOAD";

public final static String REMOVE_TOKEN = "REMOVE"; // Also for Controller.

//Controller protocol messages

public final static String STORE_TO_TOKEN = "STORE_TO";

public final static String STORE_COMPLETE_TOKEN = "STORE_COMPLETE";

public final static String LOAD_FROM_TOKEN = "LOAD_FROM";

public final static String REMOVE_COMPLETE_TOKEN = "REMOVE_COMPLETE";

public final static String REBALANCE_TOKEN = "REBALANCE";

public final static String ERROR_FILE_DOES_NOT_EXISTS_TOKEN = "ERROR_FILE_DOES_NOT_EXIST"; // Also for DStore.

public final static String ERROR_FILE_ALREADY_EXISTS_TOKEN = "ERROR_FILE_ALREADY_EXISTS";

public final static String ERROR_NOT_ENOUGH_DSTORES_TOKEN = "ERROR_NOT_ENOUGH_DSTORES";

public final static String ERROR_LOAD_TOKEN = "ERROR_LOAD";

//DStore protocol messages

public final static String ACK_TOKEN = "ACK";

public final static String STORE_ACK_TOKEN = "STORE_ACK";

public final static String REMOVE_ACK_TOKEN = "REMOVE_ACK";

public final static String JOIN_TOKEN = "JOIN";

public final static String REBALANCE_STORE_TOKEN = "REBALANCE_STORE";

public final static String REBALANCE_COMPLETE_TOKEN = "REBALANCE_COMPLETE";

}