org.eclipse.virgo.ide.ui/src/org/eclipse/virgo/ide/ui/internal/actions/ManifestFormatOperation.java

/*********************************************************************
 * Copyright (c) 2009, 2012 SpringSource, a division of VMware, Inc.
 *
 * This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License 2.0
 * which is available at https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
**********************************************************************/

package org.eclipse.virgo.ide.ui.internal.actions;

import java.lang.reflect.InvocationTargetException;
import java.util.Iterator;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.osgi.util.NLS;
import org.eclipse.pde.core.IBaseModel;
import org.eclipse.pde.core.plugin.IPluginBase;
import org.eclipse.pde.core.plugin.IPluginModelBase;
import org.eclipse.pde.internal.core.ibundle.IBundleModel;
import org.eclipse.pde.internal.core.ibundle.IBundlePluginModelBase;
import org.eclipse.pde.internal.core.ibundle.IManifestHeader;
import org.eclipse.pde.internal.core.text.bundle.Bundle;
import org.eclipse.pde.internal.core.text.bundle.BundleModel;
import org.eclipse.pde.internal.core.text.plugin.PluginBaseNode;
import org.eclipse.pde.internal.ui.PDEUIMessages;
import org.eclipse.ui.IFileEditorInput;
import org.eclipse.virgo.ide.ui.editors.model.BundleModelModification;
import org.eclipse.virgo.ide.ui.editors.model.BundleModelUtility;

/**
 * @author Christian Dupuis
 * @author Leo Dos Santos
 */
public class ManifestFormatOperation implements IRunnableWithProgress {

    private final Object[] fObjects;

    public ManifestFormatOperation(Object[] objects) {
        this.fObjects = objects;
    }

    public void run(IProgressMonitor mon) throws InvocationTargetException, InterruptedException {
        mon.beginTask(PDEUIMessages.FormatManifestOperation_task, this.fObjects.length);
        for (int i = 0; !mon.isCanceled() && i < this.fObjects.length; i++) {
            Object obj = this.fObjects[i];
            if (obj instanceof IFileEditorInput) {
                obj = ((IFileEditorInput) obj).getFile();
            }
            if (obj instanceof IFile) {
                mon.subTask(NLS.bind(PDEUIMessages.FormatManifestOperation_subtask, ((IFile) obj).getFullPath().toString()));
                format((IFile) obj, mon);
            }
            mon.worked(1);
        }
    }

    public static void format(IFile file, IProgressMonitor mon) {
        BundleModelUtility.modifyModel(new BundleModelModification(file) {

            @Override
            protected void modifyModel(IBaseModel model, IProgressMonitor monitor) throws CoreException {
                if (model instanceof IBundlePluginModelBase) {
                    IBundleModel bundleModel = ((IBundlePluginModelBase) model).getBundleModel();
                    if (bundleModel.getBundle() instanceof Bundle) {
                        formatBundle((Bundle) bundleModel.getBundle());
                    }
                } else if (model instanceof IPluginModelBase) {
                    IPluginBase pluginModel = ((IPluginModelBase) model).getPluginBase();
                    if (pluginModel instanceof PluginBaseNode) {
                        formatXML((PluginBaseNode) pluginModel);
                    }
                }
            }

            @Override
            public boolean saveOpenEditor() {
                return false;
            }
        }, mon);
    }

    private static void formatBundle(Bundle bundle) {
        Iterator headers = bundle.getHeaders().values().iterator();
        while (headers.hasNext()) {
            ((IManifestHeader) headers.next()).update(true);
        }
        BundleModel model = (BundleModel) bundle.getModel();
        model.adjustOffsets(model.getDocument());
    }

    private static void formatXML(PluginBaseNode node) {
        // TODO Auto-generated method stub

    }

}