Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * of the License, or (at your option) any later version.

 *

 * 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.

 *

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.andami.actioninfo.impl;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Comparator;

import java.util.HashMap;

import java.util.Iterator;

import java.util.List;

import java.util.Map;

import org.gvsig.andami.actioninfo.ActionInfo;

import org.gvsig.andami.actioninfo.ActionInfoManager;

import org.gvsig.andami.actioninfo.ActionInfoStatusCache;

import org.gvsig.andami.plugins.IExtension;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public class DefaultActionInfoManager implements  ActionInfoManager {

        private static Logger logger = LoggerFactory.getLogger(DefaultActionInfoManager.class);

        private Map<String, ActionInfo>actions = new HashMap<String, ActionInfo>();

        private int anonymousCounter = 1;

    public ActionInfo createAction(Class<? extends IExtension> extension, String name, String text, String command, String icon, String accelerator, long position, String tip) {

            name = emptyToNull(name);

            String actionName = name;

            if( actionName==null ){

                    actionName = String.format("anonymous__%04d",this.anonymousCounter++);

            }

            ActionInfo action = new DefaultActionInfo(extension, actionName, text, command, icon, accelerator, position, tip);

            ActionInfo previous = this.getAction(action.getName());

            if( previous != null ) {

                    ((DefaultActionInfo)action).merge(previous);

            }

            if( name == null  ){

                    logger.info("createAction: name of action is null/empty, rename to '"+actionName+"' ("+action.toString()+").");

            }

            if( action.getLabel()==null && action.getIconName()==null ) {

                    logger.info("createAction(name='"+name+"'): text and icon of action is null");

            }

            return action;

    }

        private String emptyToNull(String s) {

                if( s==null ) {

                        return null;

                }

                return "".equals(s.trim())? null:s;

        }

    public ActionInfo registerAction(ActionInfo action) {

            if( action == null ) {

                    // Avisamos en el log de que se intenta registrar una accion null, intentado

                    // sacar el stack para que se pueda ver quien lo esta haciendo, pero no

                    // provocamos un error, solo retornamos null.

                        try {

                                throw new IllegalArgumentException();

                        } catch (IllegalArgumentException e) {

                                logger.info("registerAction(null).", e);

                        }

                        return null;

            }

            ActionInfo previous = this.getAction(action.getName());

            if( previous != null ) {

                    ((DefaultActionInfo)previous).merge(action);

                return previous;

            } else {

                    this.actions.put(action.getName(), action);

                return action;

            }

    }

    public ActionInfo getAction(String name) {

            if( name == null || "".equals(name) ) {

                        try {

                                throw new IllegalArgumentException();

                        } catch (IllegalArgumentException e) {

                                logger.info("getAction(null/empty) return null.", e);

                                return null;

                        }

            }

            return this.actions.get(name);

    }

    public Iterator<ActionInfo> getActions() {

            List<ActionInfo> actions = new ArrayList<ActionInfo>();

            actions.addAll(this.actions.values());

            Collections.sort(actions, new Comparator<ActionInfo>() {

                    public int compare(ActionInfo arg0, ActionInfo arg1) {

                            String s0 = String.format("%s/%012d", arg0.getPluginName(), arg0.getPosition());

                            String s1 = String.format("%s/%012d", arg1.getPluginName(), arg1.getPosition());

                            return s0.compareTo(s1);

                    };

                });

            return actions.iterator();

    }

    public ActionInfoStatusCache createActionStatusCache() {

            return new DefaultActionInfoStatusCache();

    }

        public void redirect(String sourceName, String targetName) {

                ActionInfo source = this.getAction(sourceName);

                if( source == null ) {

                        throw new IllegalArgumentException("Can't locate source action '"+sourceName+"'.");

                }

                ActionInfo target = this.getAction(targetName);

                if( target == null ) {

                        throw new IllegalArgumentException("Can't locate target action '"+targetName+"'.");

                }

                source.getRedirections().add(target);

        }

    public void execute(String actionName, Object[] parameters) {

            ActionInfo action = this.actions.get(actionName);

            if( action == null ) {

                return;

            }

            action.execute(parameters);

    }

}