org.jboss.tools.maven.conversion.ui.handlers.ConvertToMavenDependencyHandler.java Source code

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Here is the source code for org.jboss.tools.maven.conversion.ui.handlers.ConvertToMavenDependencyHandler.java

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/*************************************************************************************
 * Copyright (c) 2012 Red Hat, Inc. and others.
 * 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:
 *     JBoss by Red Hat - Initial implementation.
 ************************************************************************************/
package org.jboss.tools.maven.conversion.ui.handlers;

import java.util.Collection;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.Set;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.internal.ui.packageview.ClassPathContainer;
import org.eclipse.jface.dialogs.MessageDialogWithToggle;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.m2e.jdt.internal.MavenClasspathHelpers;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.handlers.HandlerUtil;
import org.jboss.tools.maven.conversion.ui.dialog.ConvertToMavenDependencyWizard;

/**
 * Materialize Library Handler.
 * 
 * @author Fred Bricon
 */

@SuppressWarnings("restriction")
public class ConvertToMavenDependencyHandler extends AbstractHandler {

    @Override
    public Object execute(final ExecutionEvent event) throws ExecutionException {

        final IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindowChecked(event);

        ISelection selection = HandlerUtil.getCurrentSelection(event);

        Set<IClasspathEntry> entries = getSelectedClasspathEntries(selection);

        if (entries == null || entries.isEmpty()) {
            MessageDialogWithToggle.openInformation(window.getShell(), "Convert to Maven Dependency",
                    "Nothing to convert");
            return null;
        }

        ConvertToMavenDependencyWizard wizard = new ConvertToMavenDependencyWizard(null, //project,
                null);

        WizardDialog dialog = new WizardDialog(window.getShell(), wizard);
        dialog.open();
        return null;
    }

    private Set<IClasspathEntry> getSelectedClasspathEntries(ISelection selection) {
        Set<IClasspathEntry> files = null;
        if (selection instanceof IStructuredSelection) {
            IStructuredSelection structuredSelection = (IStructuredSelection) selection;
            files = new LinkedHashSet<IClasspathEntry>(structuredSelection.size());
            Iterator<?> ite = structuredSelection.iterator();
            while (ite.hasNext()) {
                Object o = ite.next();
                if (o instanceof IPackageFragmentRoot) {
                    ((IPackageFragmentRoot) o).getPath();
                    addClasspathEntry((IPackageFragmentRoot) o, files);
                } else if (o instanceof ClassPathContainer) {
                    ClassPathContainer container = (ClassPathContainer) o;
                    if (isValid(container)) {
                        for (IPackageFragmentRoot pfr : container.getPackageFragmentRoots()) {
                            addClasspathEntry(pfr, files);
                        }
                    }
                }
            }
        }
        return files;
    }

    private boolean isValid(ClassPathContainer container) {
        return !MavenClasspathHelpers.isMaven2ClasspathContainer(container.getClasspathEntry().getPath());
    }

    private void addClasspathEntry(IPackageFragmentRoot pfr, Collection<IClasspathEntry> entries) {
        if (pfr.isArchive()) {
            pfr.getResource();
            try {
                IClasspathEntry cpe = pfr.getResolvedClasspathEntry();
                if (cpe != null && cpe.getEntryKind() == IClasspathEntry.CPE_LIBRARY) {
                    entries.add(cpe);
                }
            } catch (JavaModelException e) {
                e.printStackTrace();
            }
        }
    }

}