org.jboss.tools.common.model.handlers.OpenJavaEditorHandler.java Source code

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Here is the source code for org.jboss.tools.common.model.handlers.OpenJavaEditorHandler.java

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/*******************************************************************************
 * Copyright (c) 2007 Exadel, Inc. and Red Hat, Inc.
 * Distributed under license by Red Hat, Inc. All rights reserved.
 * This program is 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:
 *     Exadel, Inc. and Red Hat, Inc. - initial API and implementation
 ******************************************************************************/
package org.jboss.tools.common.model.handlers;

import java.util.Properties;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.Path;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.ide.IDE;
import org.jboss.tools.common.meta.action.impl.AbstractHandler;
import org.jboss.tools.common.model.XModelException;
import org.jboss.tools.common.model.XModelObject;
import org.jboss.tools.common.model.XModelObjectConstants;
import org.jboss.tools.common.model.plugin.ModelPlugin;
import org.jboss.tools.common.model.util.EclipseResourceUtil;

public class OpenJavaEditorHandler extends AbstractHandler {
    public boolean isEnabled(XModelObject object) {
        return true;
    }

    public void executeHandler(XModelObject object, Properties p) throws XModelException {
        IProject project = EclipseResourceUtil.getProject(object);
        try {
            IJavaProject javaProject = (IJavaProject) project.getNature(JavaCore.NATURE_ID);

            String className = EclipseResourceUtil.getJavaClassQualifiedName(object).replace('.', '/') + "." //$NON-NLS-1$
                    + object.getAttributeValue(XModelObjectConstants.ATTR_NAME_EXTENSION);

            IJavaElement javaElement = javaProject.findElement(new Path(className));
            if (javaElement != null) {
                JavaUI.openInEditor(javaElement);
            } else {
                IFile f = (IFile) EclipseResourceUtil.getResource(object);
                if (f != null)
                    IDE.openEditor(getWorkbenchPage(), f);
            }
        } catch (CoreException e) {
            throw new XModelException(e);
        }
    }

    private IWorkbenchPage getWorkbenchPage() {
        ModelPlugin plugin = ModelPlugin.getDefault();
        IWorkbench workbench = (plugin == null) ? null : plugin.getWorkbench();
        IWorkbenchWindow window = (workbench == null) ? null : workbench.getActiveWorkbenchWindow();
        return (window == null) ? null : window.getActivePage();
    }
}