/**
 *#########################################################################
 *
 * A component of the Gatherer application, part of the Greenstone digital
 * library suite from the New Zealand Digital Library Project at the
 * University of Waikato, New Zealand.
 *
 * <BR><BR>
 *
 * Author: John Thompson, Greenstone Digital Library, University of Waikato
 *
 * <BR><BR>
 *
 * Copyright (C) 1999 New Zealand Digital Library Project
 *
 * <BR><BR>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * <BR><BR>
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * <BR><BR>
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *########################################################################
 */
package org.greenstone.gatherer.msm;

/**
 * Title:        The Gatherer<br>
 * Description:  The Gatherer: a tool for gathering and enriching digital collections.<br>
 * Copyright:    Copyright (c) 2001<br>
 * Company:      The University of Waikato<br>
 * Written:        /04/02<br>
 * @author John Thompson, Greenstone Digital Libraries
 * @version 2.1
 */
import org.greenstone.gatherer.msm.Declarations;
import org.greenstone.gatherer.msm.MetadataSetManager;
/** This class provides all the information required to correctly perform metadata actions, with regard to the users previously indicated preferences in terms of importing and renaming. */
final public class MSMAction {
    private boolean hfile = false;
    /** The type of action required in subsequent actions involving the specified set and source element. */
    private int action = Declarations.NO_ACTION;
    private String set = null;
    private String source = null;
    /** The fully qualified name of the target element (which must be currently in the loaded metadata sets, otherwise the set it belongs to cannot be determined. */
    private String target = null;
    /** Constructor. Note that the standard action FORCE_MERGE is only named so for clarity and is translated into its actual action RENAME when this profile is created.
     * @param action An <i>int</i> representing what action needs to be taken in subsequent access of the given set and source element.
     * @param target A <strong>String</strong> representing the fully qualified name of the target element.
     */ 
    public MSMAction(int action, String target) {
	this.target = target;
	switch(action) {
	case Declarations.DELETE:
	    this.action = action;
	    break;
	case Declarations.FORCE_MERGE:
	    this.action = Declarations.RENAME;
	    break;
	case Declarations.RENAME:
	    this.action = action;
	    break;
	case Declarations.SKIP:
	    this.action = action;
	    this.target = null;
	    break;
	default:
	    this.action = Declarations.NO_ACTION;
	}
    }
    /** Constructor. Note that the standard action FORCE_MERGE is only named so for clarity and is translated into its actual action RENAME when this profile is created.
     * @param action An <i>int</i> representing what action needs to be taken in subsequent access of the given set and source element.
     * @param target A <strong>String</strong> representing the fully qualified name of the target element.
     * @param hfile If this action was created from the hfile parsing stage, does the element require a replacement to change its alias value into a real one. Note that this profile item may be created for fully namespaced elements as well, to ensure aliases are always remapped.
     */ 
    public MSMAction(int action, String target, boolean hfile) {
	this.hfile = hfile;
	this.target = target;
	switch(action) {
	case Declarations.FORCE_MERGE:
	    this.action = Declarations.RENAME;
	    break;
	case Declarations.RENAME:
	    this.action = action;
	    break;
	case Declarations.SKIP:
	    this.action = action;
	    this.target = null;
	    break;
	default:
	    this.action = Declarations.NO_ACTION;
	}
    }

    public MSMAction(String set, String source, int action, String target) {
	this(action, target);
	this.set = set;
	this.source = source;
    }

    /** Method for retrieving the appropriate action from this class.
     * @return An <i>int</i> specifying a particular action. 
     */
    public int getAction() {
	return action;
    }
    public String getSet() {
	return set;
    }
    public String getSource() {
	return source;
    }
    /** Method for retrieving the target element of this action.
     * @return A <strong>String</strong> stating the fully qualified name of the target element, within the namespace of one of the currently loaded metadata sets. 
     */
    /* private String getTarget() {
	return target;
	} */
    /* private boolean isHFile() {
	return hfile;
	} */
}