com.ebmwebsourcing.petals.services.sa.wizards.PetalsSaSusWizardPage.java Source code

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Here is the source code for com.ebmwebsourcing.petals.services.sa.wizards.PetalsSaSusWizardPage.java

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/******************************************************************************
 * Copyright (c) 2010-2013, Linagora
 *
 * 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:
 *       Linagora - initial API and implementation
 *******************************************************************************/

package com.ebmwebsourcing.petals.services.sa.wizards;

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

import org.eclipse.core.resources.IProject;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CheckStateChangedEvent;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.ICheckStateListener;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.views.navigator.ResourceComparator;

import com.ebmwebsourcing.petals.services.utils.ServiceProjectRelationUtils;

/**
 * The wizard page asking the SU projects to add to the created SA.
 * @author Vincent Zurczak - EBM WebSourcing
 */
public class PetalsSaSusWizardPage extends WizardPage {

    /**
     * The SU projects to associated with the SA.
     */
    private final List<IProject> suProjects = new ArrayList<IProject>();

    /**
     * The constructor.
     * @param pageName
     */
    public PetalsSaSusWizardPage(String pageName) {
        super(pageName);
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.dialogs.IDialogPage
     * #createControl(org.eclipse.swt.widgets.Composite)
     */
    public void createControl(Composite parent) {

        Composite container = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout();
        layout.marginLeft = layout.marginRight = 15;
        layout.marginTop = 10;
        layout.horizontalSpacing = 15;
        container.setLayout(layout);
        container.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        new Label(container, SWT.NONE).setText("Select the SU projects to include:");
        final CheckboxTableViewer viewer = CheckboxTableViewer.newCheckList(container,
                SWT.SINGLE | SWT.FULL_SELECTION | SWT.BORDER | SWT.V_SCROLL);

        GridData layoutData = new GridData(GridData.FILL_BOTH);
        layoutData.heightHint = 200;
        viewer.getTable().setLayoutData(layoutData);
        viewer.setContentProvider(new ArrayContentProvider() {
            @Override
            public Object[] getElements(Object inputElement) {
                return ServiceProjectRelationUtils.getAllSuProjects().toArray();
            }
        });

        viewer.setLabelProvider(new LabelProvider() {
            @Override
            public String getText(Object element) {
                String text = "";
                if (element instanceof IProject)
                    text = ((IProject) element).getName();

                return text;
            }
        });

        viewer.setComparator(new ResourceComparator(ResourceComparator.NAME));
        viewer.addCheckStateListener(new ICheckStateListener() {
            public void checkStateChanged(CheckStateChangedEvent event) {
                IProject p = (IProject) event.getElement();
                if (event.getChecked())
                    PetalsSaSusWizardPage.this.suProjects.add(p);
                else
                    PetalsSaSusWizardPage.this.suProjects.remove(p);

                validate();
            }
        })

        ;

        viewer.setInput(new Object());
        setControl(container);
    }

    /**
     * @return a list of SU projects to add to the SA
     */
    public List<IProject> getSuProjectsToAdd() {
        return this.suProjects;
    }

    /**
     * Validates the selection.
     */
    private void validate() {

        ArrayList<IProject> alreadyUsed = new ArrayList<IProject>();
        for (IProject p : this.suProjects) {
            if (ServiceProjectRelationUtils.getReferencingSaProjects(p).size() > 0)
                alreadyUsed.add(p);
        }

        String msg = null;
        if (alreadyUsed.size() > 1)
            msg = alreadyUsed.size()
                    + " of the selected service units are already part of another Service Assembly project.";
        else if (alreadyUsed.size() == 1)
            msg = alreadyUsed.get(0).getName() + " is already included by another Service Assembly project.";

        setMessage(msg, IMessageProvider.INFORMATION);
    }
}