AskAQuestionWizard.java

/*******************************************************************************
 *  Copyright (c) 2011 University Of Moratuwa
 *                                                                      
 * All rights reserved. This program and the accompanying materials     
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at             
 * http://www.eclipse.org/legal/epl-v10.html                            
 *                                                                      
 * Contributors:                                                        
 *    Isuru Udana - UI Integration in the Workbench
 *******************************************************************************/
package org.eclipse.ecf.salvo.ui.wizards;

import org.eclipse.ecf.protocol.nntp.core.Debug;
import org.eclipse.ecf.protocol.nntp.core.ServerStoreFactory;
import org.eclipse.ecf.protocol.nntp.model.INewsgroup;
import org.eclipse.ecf.protocol.nntp.model.IServerStoreFacade;
import org.eclipse.ecf.protocol.nntp.model.NNTPException;
import org.eclipse.ecf.salvo.ui.internal.wizards.ComposeNewArticleWizardPage;
import org.eclipse.ecf.salvo.ui.internal.wizards.SelectNewsgroupWizardPage;
import org.eclipse.ecf.salvo.ui.tools.PreferencesUtil;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.wizard.Wizard;

/**
 * This class is responsible for providing the "Ask A Question" wizard.
 * 
 * @author isuru
 * 
 */
public class AskAQuestionWizard extends Wizard {

	private SelectNewsgroupWizardPage selectNewsgroupWizardPage;
	private ComposeNewArticleWizardPage composeNewArticleWizardPage;

	public AskAQuestionWizard() {
		super();
		setNeedsProgressMonitor(true);
		setWindowTitle("Ask a Question");
	}

	@Override
	public void addPages() {
		selectNewsgroupWizardPage = new SelectNewsgroupWizardPage();
		composeNewArticleWizardPage = new ComposeNewArticleWizardPage();
		addPage(selectNewsgroupWizardPage);
		addPage(composeNewArticleWizardPage);

	}

	@Override
	public boolean canFinish() {
		if (composeNewArticleWizardPage.isValuesSet()) {
			return true;
		}
		return false;
	}

	@Override
	public boolean performFinish() {

		INewsgroup group = selectNewsgroupWizardPage.getSelectedNewsgroup();

		if (group != null) {

			// Saving preferences
			PreferencesUtil.instance().savePluginSettings(
					"recentSelectedNewsgroup", group.getNewsgroupName());
			PreferencesUtil.instance().savePluginSettings(
					"recentSelectedServer", group.getServer().getAddress());

			String subject = composeNewArticleWizardPage.getSubject();
			String body = composeNewArticleWizardPage.getBodyText();

			IServerStoreFacade serverStoreFacade = ServerStoreFactory
					.instance().getServerStoreFacade();
			try {

				// posting article
				serverStoreFacade.postNewArticle(new INewsgroup[] { group },
						subject, body);

				// Subscribe newsgroup
				if (!group.isSubscribed()
						&& composeNewArticleWizardPage.doSubscribe()) {
					serverStoreFacade.subscribeNewsgroup(group);
				}

				MessageDialog.openInformation(
						getShell(),
						"Article Posted",
						"Your question is posted to "
								+ group.getNewsgroupName());

			} catch (NNTPException e) {
				MessageDialog.openError(
						getShell(),
						"Problem posting message",
						"The message could not be posted. \n\r"
								+ e.getMessage());
				Debug.log(this.getClass(), e);
				e.printStackTrace();

			}
		} else {
			MessageDialog.openError(getShell(), "Problem posting message",
					"The message could not be posted. \n\r Newsgroup Failure");
		}
		return true;
	}

}