com.jaspersoft.studio.backward.wizard.DownloadJRWizard.java Source code

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Here is the source code for com.jaspersoft.studio.backward.wizard.DownloadJRWizard.java

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/*******************************************************************************
 * Copyright (C) 2005 - 2014 TIBCO Software Inc. All rights reserved.
 * http://www.jaspersoft.com.
 * 
 * Unless you have purchased  a commercial license agreement from Jaspersoft,
 * the following license terms  apply:
 * 
 * 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
 ******************************************************************************/
package com.jaspersoft.studio.backward.wizard;

import java.lang.reflect.InvocationTargetException;
import java.text.MessageFormat;
import java.util.HashMap;
import java.util.Map.Entry;

import net.sf.jasperreports.eclipse.ui.util.UIUtils;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;

import com.jaspersoft.studio.JaspersoftStudioPlugin;
import com.jaspersoft.studio.backward.JRBackwardManager;
import com.jaspersoft.studio.backward.JRDefinition;
import com.jaspersoft.studio.messages.Messages;
import com.jaspersoft.studio.wizards.JSSWizard;

/**
 * Wizard used to manage (delete or download) the previous version of JR
 * 
 * @author Orlandin Marco
 *
 */
public class DownloadJRWizard extends JSSWizard {

    /**
     * Page where all the version of JR that can be managed are listed
     */
    private ShowInstallationsWizardPage page0;

    /**
     * Page to show the result of the operation
     */
    private SummaryWizardPage page1;

    @Override
    public void addPages() {
        page0 = new ShowInstallationsWizardPage();
        addPage(page0);
        page1 = new SummaryWizardPage();
        addPage(page1);
    }

    /**
     * Called when the user press next to go to the second page, launch the thread
     * to download and unpack (or delete) the selected (or unslected) version.
     * The next page will be shown automatically when the thread is completed
     * 
     * @param mainDialog main dialog of the wizard, the reference is used to notify that the thread
     * is completed, must be not null
     */
    protected void nextPressed(final DownloadJRWizardDialog mainDialog) {
        run(false, true, new IRunnableWithProgress() {

            @Override
            public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
                HashMap<JRDefinition, Boolean> selection = page0.getSelection();
                monitor.beginTask(Messages.DownloadJRWizard_monitorStart, selection.entrySet().size());
                for (Entry<JRDefinition, Boolean> def : selection.entrySet()) {
                    if (def.getValue().booleanValue() == false) {
                        JRBackwardManager.INSTANCE.deleteJR(def.getKey());
                        monitor.worked(1);
                    } else {
                        try {
                            JRBackwardManager.INSTANCE.getJRFolder(def.getKey().getVersion(), monitor);
                        } catch (Exception ex) {
                            String errorMessage = MessageFormat.format(Messages.DownloadJRWizard_errorMessage,
                                    new Object[] { def.getKey().getVersion() });
                            JaspersoftStudioPlugin.getInstance().logError(errorMessage, ex);
                            page1.setError(true);
                        }
                        monitor.worked(1);
                    }
                    if (monitor.isCanceled()) {
                        page1.setAborted(true);
                        break;
                    }
                }
                monitor.done();
                //The notification of the completed thread must be in the graphic thread since it force the advance of the page
                UIUtils.getDisplay().syncExec(new Runnable() {
                    @Override
                    public void run() {
                        mainDialog.threadCompleted();
                    }
                });
            }
        });
        getContainer().updateButtons();
    }

    @Override
    public boolean canFinish() {
        return getContainer().getCurrentPage() == page1;
    }
}