applicationshortcutwizardadditionaldetailsform.java

这是linux下ssl vpn的实现程序

/*
 *  SSL-Explorer
 *
 *  Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
 *
 *  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.
 *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
			
package com.sslexplorer.extensions.wizards.forms;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.Globals;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;

import com.sslexplorer.boot.PropertyDefinition;
import com.sslexplorer.extensions.ApplicationParameterDefinition;
import com.sslexplorer.extensions.ExtensionDescriptor;
import com.sslexplorer.extensions.ShortcutParameterItem;
import com.sslexplorer.extensions.store.ExtensionStore;
import com.sslexplorer.tabs.TabModel;
import com.sslexplorer.wizard.AbstractWizardSequence;
import com.sslexplorer.wizard.forms.DefaultWizardForm;

/**
 * Extension of a {@link com.sslexplorer.wizard.forms.DefaultWizardForm} that
 * allows an administrator to enter the application shortcut parameters for the
 * selected application.
 * <p>
 * The list of available parameters is also categorised. This allows the
 * UI to organise the items (into tabs in the default UI).
 * 
 * @author Brett Smith <a href="mailto: [e-mail]">&lt;[e-mail]&gt;</a>
 * @version $Revision: 1.4 $
 */
public class ApplicationShortcutWizardAdditionalDetailsForm extends DefaultWizardForm implements TabModel {

    final static Log log = LogFactory.getLog(ApplicationShortcutWizardAdditionalDetailsForm.class);
    
    /**
     * Key used to store the map of applicaiton shortcut parameters
     */
    public final static String ATTR_PARAMETERS = "parameters";
       // Private instance variables

    private List parameterItems;
    private List categories;
    private List categoryTitles;
    private String selectedTab;

    /**
     * Constructor
     */
    public ApplicationShortcutWizardAdditionalDetailsForm() {
        super(true, true, "/WEB-INF/jsp/content/extensions/applicationShortcutWizard/additionalDetails.jspf", "resourceName", true,
            false, "applicationShortcutAdditionalDetails", "extensions",
            "applicationShortcutWizard.applicationShortcutAdditionalDetails", 3);
    }

    /**
     * Get the list of {@link com.sslexplorer.extensions.ShortcutParameterItem}
     * objects that are appropriate for the selected application.
     * 
     * @return list of application shortcut parameter items
     */
    public List getParameterItems() {
        return parameterItems;
    }

    /**
     * Get a {@link com.sslexplorer.extensions.ShortcutParameterItem} from
     * this list of objects that are appropriate for the selected application
     * at the specified index.
     * 
     * @param idx index of parameter 
     * @return application shortcut parameter item
     */
    public ShortcutParameterItem getParameterItem(int idx) {
        return (ShortcutParameterItem)parameterItems.get(idx);
    }
    
    /**
     * Get a list of category IDs as {@link String} objects.
     * 
     * @return categories
     */
    public List getCategories() {
        return categories;
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.wizard.forms.AbstractWizardForm#init(com.sslexplorer.wizard.AbstractWizardSequence,
     *      javax.servlet.http.HttpServletRequest)
     */
    public void init(AbstractWizardSequence wizardSequence, HttpServletRequest request) throws Exception {
        super.init(wizardSequence, request);
        
        //
        parameterItems = (List)wizardSequence.getAttribute(ATTR_PARAMETERS, null);

        // Get the application selected in the previous step and retrieve all of
        // the shortcut parameter items
        ExtensionDescriptor des = ExtensionStore.getInstance().getExtensionDescriptor(
            (String) wizardSequence.getAttribute(ApplicationShortcutWizardApplicationForm.ATTR_SELECTED_APPLICATION, null));
        if(parameterItems == null) {
            parameterItems = new ArrayList();
            for (Iterator i = des.getParametersAndDefaults().entrySet().iterator(); i.hasNext();) {
                Map.Entry entry = (Map.Entry) i.next();
                ApplicationParameterDefinition def = (ApplicationParameterDefinition) entry.getValue();
                if (!def.isHidden()) {
                    ShortcutParameterItem item = new ShortcutParameterItem(des, def, def.getDefaultValue().equals(
                        ExtensionDescriptor.UNDEFINED_PARAMETER) ? "" : def.getDefaultValue());
                    if (log.isDebugEnabled())
                    	log.debug("Adding item " + item.getName());
                    parameterItems.add(item);
                }
            }
            Collections.sort(parameterItems);
            
            // Now we have a sorted list of parameter items, build up the list of categories
            categories = new ArrayList();
            categoryTitles = new ArrayList();
            for (Iterator i = parameterItems.iterator(); i.hasNext();) {
                ShortcutParameterItem spi = (ShortcutParameterItem)i.next();
                String category = String.valueOf(spi.getCategory());
                if(!categories.contains(category)) {
                    categories.add(category);
                    categoryTitles.add(spi.getLocalisedCategory());
                }
                
            }
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.apache.struts.action.ActionForm#validate(org.apache.struts.action.ActionMapping,
     *      javax.servlet.http.HttpServletRequest)
     */
    public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {
        ActionErrors errors = null;
        if (isCommiting()) {
            for (Iterator i = parameterItems.iterator(); i.hasNext();) {
                ShortcutParameterItem item = (ShortcutParameterItem) i.next();
                ActionMessage err = item.validateItem();
                if (err != null) {
                    if (errors == null) {
                        errors = new ActionErrors();
                    }
                    errors.add(Globals.ERROR_KEY, err);
                }
            }
        }
        return errors;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.apache.struts.action.ActionForm#reset(org.apache.struts.action.ActionMapping,
     *      javax.servlet.http.HttpServletRequest)
     */
    public void reset(ActionMapping mapping, javax.servlet.http.HttpServletRequest request) {
        if (parameterItems != null) {
            for (Iterator i = parameterItems.iterator(); i.hasNext();) {
                ShortcutParameterItem item = (ShortcutParameterItem) i.next();
                if (item.getDefinition().getType() == PropertyDefinition.TYPE_BOOLEAN) {
                    item.setValue(Boolean.FALSE.toString());
                } else if (item.getDefinition().getType() == PropertyDefinition.TYPE_LIST) {
                    item.setValue(item.getDefinition().getDefaultValue());
                }
            }
        }
    }

    /* (non-Javadoc)
     * @see com.sslexplorer.tabs.TabModel#getTabCount()
     */
    public int getTabCount() {
        return categories.size();
    }

    /* (non-Javadoc)
     * @see com.sslexplorer.tabs.TabModel#getTabName(int)
     */
    public String getTabName(int idx) {
        return (String)categories.get(idx);
    }

    /* (non-Javadoc)
     * @see com.sslexplorer.tabs.TabModel#getTabTitle(int)
     */
    public String getTabTitle(int idx) {
        String title = (String)categoryTitles.get(idx);
        return title.equals("") ? null : title;
    }

    /* (non-Javadoc)
     * @see com.sslexplorer.tabs.TabModel#getSelectedTab()
     */
    public String getSelectedTab() {
        return selectedTab;
    }

    /* (non-Javadoc)
     * @see com.sslexplorer.tabs.TabModel#setSelectedTab(java.lang.String)
     */
    public void setSelectedTab(String selectedTab) {
        this.selectedTab = selectedTab;
    }

    public void apply(AbstractWizardSequence sequence) throws Exception {
        super.apply(sequence);
        sequence.putAttribute(ATTR_PARAMETERS, parameterItems);
    }

    /* (non-Javadoc)
     * @see com.sslexplorer.tabs.TabModel#getTabBundle(int)
     */
    public String getTabBundle(int idx) {
        return null;
    }
}