dynamicrefactoring.integration.selectionhandler.TreeClassSelectionHandler.java Source code

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Here is the source code for dynamicrefactoring.integration.selectionhandler.TreeClassSelectionHandler.java

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/*<Dynamic Refactoring Plugin For Eclipse 2.0 - Plugin that allows to perform refactorings 
on Java code within Eclipse, as well as to dynamically create and manage new refactorings>
    
Copyright (C) 2009  Laura Fuente De La Fuente
    
This file is part of Foobar
    
Foobar is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.*/

package dynamicrefactoring.integration.selectionhandler;

import java.io.IOException;

import javamoon.core.JavaName;
import moon.core.ObjectMoon;

import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IType;
import org.eclipse.jface.viewers.TreePath;
import org.eclipse.jface.viewers.TreeSelection;

import dynamicrefactoring.integration.ModelGenerator;
import dynamicrefactoring.util.processor.JavaClassProcessor;
import dynamicrefactoring.util.processor.JavaElementProcessor;
import dynamicrefactoring.util.selection.TreeSelectionInfo;

/**
 * Proporciona las funciones necesarias para obtener la clase MOON con la que
 * se corresponde una clase seleccionada en Eclipse sobre un rbol desplegable.
 * 
 * @author <A HREF="mailto:sfd0009@alu.ubu.es">Sonia Fuente de la Fuente</A>
 * @author <A HREF="mailto:ehp0001@alu.ubu.es">Enrique Herrero Paredes</A>
 */
public class TreeClassSelectionHandler extends ClassSelectionHandler {

    /**
     * La seleccin de una clase sobre un rbol de seleccin.
     */
    private TreeSelection classSelection;

    /**
     * Constructor.
     * 
     * @param selectionInfo contenedor de la seleccin que se desea manejar.
     * 
     * @throws Exception si la seleccin contenida en #selectionInfo no es una
     * seleccin de una clase sobre un rbol de seleccin.
     */
    public TreeClassSelectionHandler(TreeSelectionInfo selectionInfo) throws Exception {

        if (!selectionInfo.isClassSelection())
            throw new Exception(Messages.TreeClassSelectionHandler_InvalidSelection
                    + Messages.TreeClassSelectionHandler_ClassExpected);

        classSelection = (TreeSelection) selectionInfo.getSelection();
    }

    /**
     * @see ClassSelectionHandler#getMainObject()
     */
    @Override
    public ObjectMoon getMainObject() throws ClassNotFoundException, IOException {

        if (classDef == null) {

            TreePath path = classSelection.getPaths()[0].getParentPath();

            if (path.getLastSegment() instanceof IJavaElement) {
                IJavaElement element = (IJavaElement) path.getLastSegment();
                if (element.getElementType() == IJavaElement.COMPILATION_UNIT) {
                    ICompilationUnit unit = (ICompilationUnit) element;

                    JavaElementProcessor elementProcessor = new JavaClassProcessor((IType) unit.findPrimaryType());

                    classDef = ModelGenerator.getInstance().getModel()
                            .getClassDef(new JavaName(elementProcessor.getUniqueName()));
                }
            }
        }

        return classDef;
    }
}