installextensionsform.java

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/*
 *  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.install.forms;

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

import javax.servlet.http.HttpServletRequest;

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

import com.sslexplorer.extensions.ExtensionBundle;
import com.sslexplorer.extensions.ExtensionBundleItem;
import com.sslexplorer.extensions.store.ExtensionStore;
import com.sslexplorer.extensions.store.ExtensionStoreDescriptor;
import com.sslexplorer.wizard.AbstractWizardSequence;
import com.sslexplorer.wizard.forms.DefaultWizardForm;

public class InstallExtensionsForm extends DefaultWizardForm {
    
    final static Log log = LogFactory.getLog(InstallExtensionsForm.class);

    // Private statics for sequence attributes
    public final static String ATTR_INSTALL_BUNDLE_PREFIX = "installBundle.";
    
    // Private instance variables
    private List installable;
    private Exception connectionException;

    public InstallExtensionsForm() {
        super(true, true, "/WEB-INF/jsp/content/install/installExtensions.jspf", 
            "", true, false, "installExtensions", "install", "installation.installExtensions",
            7);
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.wizard.forms.AbstractWizardForm#init(com.sslexplorer.wizard.AbstractWizardSequence)
     */
    public void init(AbstractWizardSequence sequence, HttpServletRequest request) throws Exception {   

    	if (log.isInfoEnabled())
    		log.info("Checking for available extension updates.");
        try {
            ExtensionStoreDescriptor descriptor = ExtensionStore.getInstance().getDownloadableExtensionStoreDescriptor(true);
            installable = new ArrayList();
            for (Iterator i = descriptor.getExtensionBundles().iterator(); i.hasNext();) {
                ExtensionBundle bundle = (ExtensionBundle) i.next();
                if(!bundle.getId().startsWith("sslexplorer-enterprise") && bundle.getType() != ExtensionBundle.TYPE_CONFIGUREABLE) {
                    if (ExtensionStore.getInstance().isExtensionLoaded(bundle.getId())) {
                        ExtensionBundle installed = ExtensionStore.getInstance().getExtensionBundle(bundle.getId());
                        if (bundle.getVersion().compareTo(installed.getVersion()) > 0) {
                            installable.add(new ExtensionBundleItem(bundle, false));
                        }
                    }
                    else {
                        installable.add(new ExtensionBundleItem(bundle, false));
                    }
                }
            }
            sequence.removeAttribute(ConfigureProxiesForm.ATTR_EXTENSION_STORE_EXCEPTION);
        }
        catch(Exception e) {
            log.error("Failed to get downloadable extensions.", e);
            sequence.putAttribute(ConfigureProxiesForm.ATTR_EXTENSION_STORE_EXCEPTION, e);
        }
        
        
        connectionException = (Exception)sequence.getAttribute(ConfigureProxiesForm.ATTR_EXTENSION_STORE_EXCEPTION, null);
        if(connectionException == null && installable != null) {
            for(Iterator i = installable.iterator(); i.hasNext(); ) {
                ExtensionBundleItem item = (ExtensionBundleItem)i.next();
                String sel =  (String)sequence.getAttribute(ATTR_INSTALL_BUNDLE_PREFIX + item.getBundle().getId(), "false");
                item.setSelected(sel);
            }
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.wizard.forms.AbstractWizardForm#apply(com.sslexplorer.wizard.AbstractWizardSequence)
     */
    public void apply(AbstractWizardSequence sequence)  throws Exception {
        if(installable != null) {
            for(Iterator i = installable.iterator(); i.hasNext(); ) {
                ExtensionBundleItem item = (ExtensionBundleItem)i.next();
                sequence.putAttribute(ATTR_INSTALL_BUNDLE_PREFIX + item.getBundle().getId(), 
                    item.getSelected());
            }
        }
    }

    /**
     * @return Returns the installable.
     */
    public List getInstallable() {
        return installable;
    }

    /**
     * @return Returns the connectionException.
     */
    public Exception getConnectionException() {
        return connectionException;
    }
}