org.eclipse.pde.internal.ui.wizards.product.BaseManifestOperation.java Source code

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Here is the source code for org.eclipse.pde.internal.ui.wizards.product.BaseManifestOperation.java

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/*******************************************************************************
 *  Copyright (c) 2005, 2010 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.pde.internal.ui.wizards.product;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.*;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.osgi.util.NLS;
import org.eclipse.pde.core.IBaseModel;
import org.eclipse.pde.core.plugin.*;
import org.eclipse.pde.internal.core.ICoreConstants;
import org.eclipse.pde.internal.core.ibundle.*;
import org.eclipse.pde.internal.core.plugin.WorkspaceFragmentModel;
import org.eclipse.pde.internal.core.plugin.WorkspacePluginModel;
import org.eclipse.pde.internal.core.project.PDEProject;
import org.eclipse.pde.internal.core.text.bundle.BundleSymbolicNameHeader;
import org.eclipse.pde.internal.ui.PDEPlugin;
import org.eclipse.pde.internal.ui.PDEUIMessages;
import org.eclipse.pde.internal.ui.util.ModelModification;
import org.eclipse.pde.internal.ui.util.PDEModelUtility;
import org.eclipse.swt.widgets.Shell;
import org.osgi.framework.Constants;

public abstract class BaseManifestOperation implements IRunnableWithProgress {

    private Shell fShell;
    protected String fPluginId;

    public BaseManifestOperation(Shell shell, String pluginId) {
        fShell = shell;
        fPluginId = pluginId;
    }

    protected Shell getShell() {
        return fShell;
    }

    protected IFile getFile() {
        IPluginModelBase model = PluginRegistry.findModel(fPluginId);
        IProject project = model.getUnderlyingResource().getProject();
        return model instanceof IFragmentModel ? PDEProject.getFragmentXml(project)
                : PDEProject.getPluginXml(project);
    }

    protected IPluginModelBase getModel(IFile file) {
        if (ICoreConstants.PLUGIN_FILENAME_DESCRIPTOR.equals(file.getName()))
            return new WorkspacePluginModel(file, false);
        return new WorkspaceFragmentModel(file, false);
    }

    protected void updateSingleton(IProgressMonitor monitor) throws CoreException {
        IPluginModelBase plugin = PluginRegistry.findModel(fPluginId);
        if (plugin instanceof IBundlePluginModel) {
            IFile file = (IFile) plugin.getUnderlyingResource();
            IStatus status = PDEPlugin.getWorkspace().validateEdit(new IFile[] { file }, fShell);
            if (status.getSeverity() != IStatus.OK)
                throw new CoreException(new Status(IStatus.ERROR, "org.eclipse.pde.ui", IStatus.ERROR, //$NON-NLS-1$
                        NLS.bind(PDEUIMessages.ProductDefinitionOperation_readOnly, fPluginId), null));

            ModelModification mod = new ModelModification(file) {
                protected void modifyModel(IBaseModel model, IProgressMonitor monitor) throws CoreException {
                    if (!(model instanceof IBundlePluginModelBase))
                        return;
                    IBundlePluginModelBase modelBase = (IBundlePluginModelBase) model;
                    IBundle bundle = modelBase.getBundleModel().getBundle();
                    IManifestHeader header = bundle.getManifestHeader(Constants.BUNDLE_SYMBOLICNAME);
                    if (header instanceof BundleSymbolicNameHeader) {
                        BundleSymbolicNameHeader symbolic = (BundleSymbolicNameHeader) header;
                        if (!symbolic.isSingleton())
                            symbolic.setSingleton(true);
                    }
                }
            };
            PDEModelUtility.modifyModel(mod, null);
        }
    }
}