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.HashMap;

import java.util.Map;

import org.gvsig.andami.actioninfo.ActionInfo;

import org.gvsig.andami.actioninfo.ActionInfoStatusCache;

import org.gvsig.andami.plugins.ExtensionHelper;

import org.gvsig.andami.plugins.IExtension;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.identitymanagement.SimpleIdentity;

import org.gvsig.tools.identitymanagement.SimpleIdentityManager;

public class DefaultActionInfoStatusCache implements ActionInfoStatusCache {

        private SimpleIdentityManager identityManager;

        private class Status {

                Boolean isEnabled = null;

                Boolean isVisible = null;

        }

        private Map<IExtension,Status> extensions = null;

        private Map<ActionInfo,Status> actions = null;

        public DefaultActionInfoStatusCache() {

                this.clear();

        }

        public void clear() {

                extensions = new HashMap<IExtension, Status>();

                actions = new HashMap<ActionInfo, Status>();

        }

        private SimpleIdentityManager getIdentityManager() {

            if( this.identityManager == null ) {

                this.identityManager = ToolsLocator.getIdentityManager();

            }

            return this.identityManager;

        }

        private SimpleIdentity getCurrentUser() {

            return this.getIdentityManager().getCurrentIdentity();

        }

        public boolean isEnabled(ActionInfo action) {

                if( !this.getCurrentUser().isAuthorized(action.getName()) ) {

                    return false;

                }

                Status status; 

                IExtension extension = action.getExtension();

                if( extension == null ) {

                        return false;

                }

                if( ExtensionHelper.canQueryByAction(extension) ) {

                        status = actions.get(action);

                        if( status == null ) {

                                status = new Status();

                                actions.put(action, status);

                        }

                        if( status.isEnabled == null ) {

                                status.isEnabled = new Boolean( action.isEnabled() );

                        }

                } else {

                        status = extensions.get(extension);

                        if( status == null ) {

                                status = new Status();

                                extensions.put(extension, status);

                        }

                        if( status.isEnabled == null ) {

                                status.isEnabled = new Boolean( extension.isEnabled() );

                        }

                }

                return status.isEnabled.booleanValue();

        }

        public boolean isVisible(ActionInfo action) {

                if( !this.getCurrentUser().isAuthorized(action.getName()) ) {

                    return false;

                }

                Status status; 

                IExtension extension = action.getExtension();

                if( extension == null ) {

                        return false;

                }

                if( ExtensionHelper.canQueryByAction(extension) ) {

                        status = actions.get(action);

                        if( status == null ) {

                                status = new Status();

                                actions.put(action, status);

                        }

                        if( status.isVisible == null ) {

                                status.isVisible = new Boolean( action.isVisible() );

                        }

                } else {

                        status = extensions.get(extension);

                        if( status == null ) {

                                status = new Status();

                                extensions.put(extension, status);

                        }

                        if( status.isVisible == null ) {

                                status.isVisible = new Boolean( extension.isVisible() );

                        }

                }

                return status.isVisible.booleanValue();

        }

}