Package de.innovationgate.eclipse.wgadesigner.wizards

Source Code of de.innovationgate.eclipse.wgadesigner.wizards.NewWGARuntimePage

/*******************************************************************************
* Copyright (c) 2009, 2010 Innovation Gate GmbH.
* 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:
*     Innovation Gate GmbH - initial API and implementation
******************************************************************************/
package de.innovationgate.eclipse.wgadesigner.wizards;

import java.io.File;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IResourceChangeListener;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.dialogs.IDialogPage;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.preference.PreferenceDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TreeSelection;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.IWorkingSetManager;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.PreferencesUtil;
import org.eclipse.ui.forms.HyperlinkGroup;
import org.eclipse.ui.forms.events.HyperlinkAdapter;
import org.eclipse.ui.forms.events.HyperlinkEvent;
import org.eclipse.ui.forms.widgets.ImageHyperlink;

import de.innovationgate.eclipse.utils.WorkbenchUtils;
import de.innovationgate.eclipse.wgadesigner.WGADesignerPlugin;
import de.innovationgate.eclipse.wgadesigner.dialogs.SelectWorkingSetDialog;
import de.innovationgate.eclipse.wgadesigner.editors.helpers.WGADeployment;
import de.innovationgate.utils.WGUtils;

public class NewWGARuntimePage extends WizardPage {

    private Text _txtRuntimeName;

    private Combo _comboWGADistribution;

    private HashMap<String, WGADeployment> _wgaDistributionItems;

    private Composite _container;

    private Combo _selectWorkingSet;

    private Label _lblworkingSets;

    private static List<String> _workingSetSelection;
   
    private Object _selection;
   

    public NewWGARuntimePage(ISelection selection) {
        super("WGA Runtime Definition");
        setTitle("WGA Runtime Project");
        setDescription("This wizard creates a new WGA Runtime Project in the workspace.");
        _selection =  ((TreeSelection)selection).getFirstElement();
        //computeSelectedWorkingSet(_selection);

    }
   
   

    private String computeSelectedWorkingSet(Object selection) {
        if (selection instanceof IWorkingSet){
            IWorkingSet workingSet = (IWorkingSet) selection;
            return workingSet.getName();
        }
    
       
        if (selection instanceof IResource){
            IResource resource = (IResource) selection;
            IProject project = resource.getProject();
            IWorkingSet[] workingSets = PlatformUI.getWorkbench().getWorkingSetManager().getWorkingSets();
          
           
           
            for(IWorkingSet currentSet : workingSets){
                for(IAdaptable current : currentSet.getElements()){
                     if(current.equals(project)){
                         return currentSet.getName();
                     }               
                }               
            }
        } 
       
        return null;       
    }

    /**
     * @see IDialogPage#createControl(Composite)
     */
    @SuppressWarnings("unchecked")
    public void createControl(Composite parent) {
       
        if(_workingSetSelection==null){
            _workingSetSelection  = new ArrayList<String>();
        }
       
        _container = new Composite(parent, SWT.NULL);
        GridLayout layout = new GridLayout();
        _container.setLayout(layout);
        layout.numColumns = 3;
        layout.verticalSpacing = 9;

        Label label = new Label(_container, SWT.NULL);
        label.setText("&Runtime name:");
        _txtRuntimeName = new Text(_container, SWT.BORDER | SWT.SINGLE);
        GridData gd = new GridData(GridData.FILL_HORIZONTAL);
        gd.horizontalSpan = 2;
        _txtRuntimeName.setLayoutData(gd);
        _txtRuntimeName.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                dialogChanged();
            }
        });

        // join wga distribution download if present
        Job[] jobs = Job.getJobManager().find(WGADesignerPlugin.JOB_FAMILY_WGA_DISTRIBUTION_DOWNLOAD);
        if (jobs != null && jobs.length > 0) {
            ProgressMonitorDialog dialog = new ProgressMonitorDialog(getShell());
            IRunnableWithProgress runnable = new IRunnableWithProgress() {
                public void run(IProgressMonitor arg0) throws InvocationTargetException, InterruptedException {
                    Job.getJobManager().join(WGADesignerPlugin.JOB_FAMILY_WGA_DISTRIBUTION_DOWNLOAD, arg0);
                }
            };
            try {
                dialog.run(true, true, runnable);
            }
            catch (InvocationTargetException e) {
            }
            catch (InterruptedException e) {
            }
        }

        // init wga distributions
        label = new Label(_container, SWT.NULL);
        label.setText("WGA Distribution:");

        _comboWGADistribution = new Combo(_container, SWT.READ_ONLY);
        updateWGADistributions(false);

        _comboWGADistribution.addSelectionListener(new SelectionListener() {

            public void widgetDefaultSelected(SelectionEvent e) {
                dialogChanged();
            }

            public void widgetSelected(SelectionEvent e) {
                dialogChanged();
            }

        });

        HyperlinkGroup linkGroup = new HyperlinkGroup(_container.getDisplay());
        ImageHyperlink linkCreateNewRuntime = new ImageHyperlink(_container, SWT.NONE);
        linkGroup.add(linkCreateNewRuntime);
        linkCreateNewRuntime.setText("configure WGA distributions");
        linkCreateNewRuntime.addHyperlinkListener(new HyperlinkAdapter() {

            @Override
            public void linkActivated(HyperlinkEvent e) {
                PreferenceDialog pref = PreferencesUtil.createPreferenceDialogOn(new Shell(), WGADesignerPlugin.PREFERENCES_PAGE_WGA_DEPLOYMENTS, null, null);
                if (pref != null) {
                    pref.open();
                    updateWGADistributions();
                }
            }
        });



        _lblworkingSets = new Label(_container, SWT.NULL);
        _lblworkingSets.setText("Working set:");
        _selectWorkingSet = new Combo(_container, SWT.READ_ONLY);
        _selectWorkingSet.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));


        _lblworkingSets.setEnabled(true);
        _selectWorkingSet.setEnabled(true);


        IWorkingSetManager manager = PlatformUI.getWorkbench().getWorkingSetManager();

        String[] ids = new String[manager.getAllWorkingSets().length];
        int i = 0;
        for (IWorkingSet c : manager.getAllWorkingSets()) {
            ids[i] = c.getId();
            i++;
        }       
       


       
        IWorkingSet[] workingSets = PlatformUI.getWorkbench().getWorkingSetManager().getWorkingSets();
        List<String> workingSetNames = new ArrayList<String>();       
        workingSetNames.add("");
        int  indexOfworkingSetNames=0;
        int indexOfpreselected=0;
        String selectedWorkingSetName = computeSelectedWorkingSet(_selection);
       
        if(selectedWorkingSetName!=null){
            for(IWorkingSet currentSet : workingSets){
                indexOfworkingSetNames++;
                workingSetNames.add(currentSet.getName());
                if(selectedWorkingSetName.equals(currentSet.getName())){
                    indexOfpreselected = indexOfworkingSetNames;
                }
               
            }   
        }
    
       
        _selectWorkingSet.setItems(workingSetNames.toArray(new String[0]));
       
      
        _selectWorkingSet.select(indexOfpreselected);
       
        setControl(_container);
        setPageComplete(false);
    }


    public List<String> getSelectedWorkingSets() {
        if(_selectWorkingSet!=null && _selectWorkingSet.isEnabled() && _selectWorkingSet.getSelectionIndex() != -1){
            List<String> sets = WGUtils.deserializeCollection(_selectWorkingSet.getItem(_selectWorkingSet.getSelectionIndex()), ",");
            if(sets.size()>0){
                return sets;
            }
        }
        return null;
   }



    private void updateWGADistributions() {
        updateWGADistributions(true);
    }

    private void updateWGADistributions(boolean fireDialogChanged) {
        _wgaDistributionItems = new HashMap<String, WGADeployment>();
        Iterator<WGADeployment> deployments = WGADesignerPlugin.getDefault().getWGADeploymentManager().getDeployments().iterator();
        while (deployments.hasNext()) {
            WGADeployment deployment = deployments.next();
            _wgaDistributionItems.put(deployment.toString(), deployment);
        }

        _comboWGADistribution.setItems(_wgaDistributionItems.keySet().toArray(new String[0]));

        // select default deployment
        List<String> items = Arrays.asList(_comboWGADistribution.getItems());
        WGADeployment defaultDeployment = WGADesignerPlugin.getDefault().getWGADeploymentManager().getDefaultDeployment();
        if (defaultDeployment != null) {
            _comboWGADistribution.select(items.indexOf(defaultDeployment.toString()));
        }
        else {
            _comboWGADistribution.select(0);
        }

        _comboWGADistribution.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
        _comboWGADistribution.layout();
        _container.layout();
        if (fireDialogChanged) {
            dialogChanged();
        }
    }

    private void dialogChanged() {
        String name = getRuntimeName();
        File container = new File(ResourcesPlugin.getWorkspace().getRoot().getLocation().makeAbsolute().toFile().getAbsolutePath());
        File targetFile = new File(ResourcesPlugin.getWorkspace().getRoot().getLocation().makeAbsolute().toFile().getAbsolutePath() + File.separator + name);

        if (container == null || (!container.exists()) || (!container.isDirectory())) {
            updateStatus("Container '" + container.getAbsolutePath() + "' does not exist.");
            return;
        }
        if (!container.canWrite() || !container.canRead()) {
            updateStatus("Container is not accessable due to filesystem permissions.");
            return;
        }

        if (name.length() == 0) {
            updateStatus("Please specify a name for the new WGA runtime.");
            return;
        }

        if (!WorkbenchUtils.isValidResourceName(name)) {
            updateStatus("WGA runtime name contains invalid characters. Only alphanumeric ascii characters and '_', '-' are allowed.");
            return;
        }

        if (getWGADeployment() == null) {
            updateStatus("Please specify a wga distribution.");
            return;
        }

        if (ResourcesPlugin.getWorkspace().getRoot().getProject(name).exists()) {
            updateStatus("A project with name '" + name + "' already exists");
            return;
        }

        if (targetFile.exists()) {
            updateStatus("a resource at '" + targetFile.getAbsolutePath() + "' already exists.");
            return;
        }

        updateStatus(null);
    }

    private void updateStatus(String message) {
        setErrorMessage(message);
        setPageComplete(message == null);
    }

    public String getRuntimeName() {
        return _txtRuntimeName.getText();
    }

    public WGADeployment getWGADeployment() {
        if (_comboWGADistribution.getSelectionIndex() != -1) {
            String selectedCombo = _comboWGADistribution.getItem(_comboWGADistribution.getSelectionIndex());
            return _wgaDistributionItems.get(selectedCombo);
        }
        else {
            return null;
        }
    }
}
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