net.sf.ginp.commands.ShowPicture.java Source code

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Here is the source code for net.sf.ginp.commands.ShowPicture.java

Source

/*
 *  ginp - Java Web Application for Viewing Photo Collections
 *  Copyright (C) 2004  Douglas John Culnane <doug@culnane.net>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA  02110-1301  USA
 */
package net.sf.ginp.commands;

import net.sf.ginp.CommandParameter;
import net.sf.ginp.GinpModel;
import net.sf.ginp.config.Configuration;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.util.Vector;

/**
 *  Command to change the model state to display a particular picture.
 *
 * @author     Doug Culnane
 * @version    $Revision$
 */
public class ShowPicture implements Command {
    /**
     *  apache Commons Logger specific to this class.
     */
    private Log log = LogFactory.getLog(ShowPicture.class);

    /**
     *  PicCollection id (colid) and path (path) should be sent in the
     *  parameters so that the model is not out of sync with browser.
     *  This can happen due to use of the Back Button.
     *
     * @param  model   Description of the Parameter
     * @param  params  Description of the Parameter
     */
    public final void action(final GinpModel model, final Vector params) {
        String name = "";
        String path = null;

        for (int i = 0; i < params.size(); i++) {
            CommandParameter param = (CommandParameter) params.get(i);

            if (param.getName().equals("name")) {
                name = param.getValue();
            } else if (param.getName().equals("colid")) {
                try {
                    int id = (new Integer(param.getValue())).intValue();
                    model.setCurrectCollection(id);
                } catch (Exception ex) {
                    log.error(ex);
                }
            } else if (param.getName().equals("path")) {
                path = param.getValue();
            }
        }

        if (path != null) {
            model.getCollection().setPath(path);
        }

        model.setCurrentPage(Configuration.getPicturePageName() + "?name=" + name);
    }
}