org.eclim.plugin.jdt.command.refactoring.MoveCommand.java Source code

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Here is the source code for org.eclim.plugin.jdt.command.refactoring.MoveCommand.java

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/**
 * Copyright (C) 2012  Eric Van Dewoestine
 *
 * This program 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 org.eclim.plugin.jdt.command.refactoring;

import org.eclim.Services;

import org.eclim.annotation.Command;

import org.eclim.command.CommandLine;
import org.eclim.command.Options;

import org.eclim.eclipse.EclimPlugin;

import org.eclim.plugin.core.command.refactoring.AbstractRefactorCommand;
import org.eclim.plugin.core.command.refactoring.Refactor;
import org.eclim.plugin.core.command.refactoring.RefactorException;

import org.eclim.plugin.jdt.util.JavaUtils;

import org.eclipse.core.resources.IResource;

import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;

import org.eclipse.jdt.internal.corext.refactoring.reorg.IReorgDestination;
import org.eclipse.jdt.internal.corext.refactoring.reorg.IReorgPolicy.IMovePolicy;
import org.eclipse.jdt.internal.corext.refactoring.reorg.JavaMoveProcessor;
import org.eclipse.jdt.internal.corext.refactoring.reorg.ReorgDestinationFactory;
import org.eclipse.jdt.internal.corext.refactoring.reorg.ReorgPolicyFactory;

import org.eclipse.jdt.internal.corext.util.JavaModelUtil;

import org.eclipse.jdt.internal.ui.refactoring.reorg.CreateTargetQueries;
import org.eclipse.jdt.internal.ui.refactoring.reorg.ReorgQueries;

import org.eclipse.ltk.core.refactoring.Refactoring;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;

import org.eclipse.ltk.core.refactoring.participants.MoveRefactoring;

import org.eclipse.swt.widgets.Shell;

/**
 * Command to move a compilation unit.
 *
 * @author Eric Van Dewoestine
 */
@Command(name = "java_refactor_move", options = "REQUIRED p project ARG," + "REQUIRED f file ARG,"
        + "REQUIRED n name ARG," + "OPTIONAL v preview NOARG," + "OPTIONAL d diff ARG")
public class MoveCommand extends AbstractRefactorCommand {
    @Override
    public Refactor createRefactoring(CommandLine commandLine) throws Exception {
        String project = commandLine.getValue(Options.PROJECT_OPTION);
        String file = commandLine.getValue(Options.FILE_OPTION);
        String packName = commandLine.getValue(Options.NAME_OPTION);

        ICompilationUnit src = JavaUtils.getCompilationUnit(project, file);
        IPackageFragmentRoot root = JavaModelUtil.getPackageFragmentRoot(src);
        IPackageFragment pack = root.getPackageFragment(packName);
        ICompilationUnit dest = pack.getCompilationUnit(src.getElementName());
        if (dest.exists()) {
            throw new RefactorException(
                    Services.getMessage("move.element.exists", pack.getElementName(), src.getElementName()));
        }

        if (!pack.exists()) {
            pack = root.createPackageFragment(packName, true, null);
        }

        IMovePolicy policy = ReorgPolicyFactory.createMovePolicy(new IResource[0], new IJavaElement[] { src });

        JavaMoveProcessor processor = new JavaMoveProcessor(policy);
        IReorgDestination destination = ReorgDestinationFactory.createDestination(pack);
        RefactoringStatus status = processor.setDestination(destination);
        if (status.hasError()) {
            throw new RefactorException(status);
        }

        Shell shell = EclimPlugin.getShell();
        processor.setCreateTargetQueries(new CreateTargetQueries(shell));
        processor.setReorgQueries(new ReorgQueries(shell));

        Refactoring refactoring = new MoveRefactoring(processor);

        // create a more descriptive name than the default.
        String desc = refactoring.getName() + " (" + src.getElementName() + " -> " + pack.getElementName() + ')';

        return new Refactor(desc, refactoring);
    }
}