org.eclipse.thym.core.plugin.actions.CopyFileAction.java Source code

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Here is the source code for org.eclipse.thym.core.plugin.actions.CopyFileAction.java

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/*******************************************************************************
 * Copyright (c) 2013, 2014 Red Hat, Inc. 
 * 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:
 *        Red Hat Inc. - initial API and implementation and/or initial documentation
 *******************************************************************************/
package org.eclipse.thym.core.plugin.actions;

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.thym.core.HybridCore;
import org.eclipse.thym.core.platform.IPluginInstallationAction;

/**
 * Action that copies a source file or directory to a target file or directory on install and 
 * deletes the file/directory on uninstall.
 * @author Gorkem Ercan
 *
 */
public class CopyFileAction implements IPluginInstallationAction {

    protected final File source;
    protected final File target;

    public CopyFileAction(File source, File target) {
        Assert.isNotNull(source);
        Assert.isNotNull(target);
        this.source = source;
        this.target = target;
    }

    @Override
    public void install() throws CoreException {
        try {
            if (source.isDirectory()) {
                FileUtils.copyDirectory(source, target);
            }
            //source is a file
            else if (target.exists()) {
                if (target.isDirectory()) {
                    FileUtils.copyFileToDirectory(source, target);
                } else {
                    FileUtils.copyFile(source, target);
                }
            } else if (FilenameUtils.getExtension(target.toString()).isEmpty()) {// it is likely a directory
                FileUtils.copyFileToDirectory(source, target);
            } else {
                FileUtils.copyFile(source, target);
            }

        } catch (IOException e) {
            throw new CoreException(new Status(IStatus.ERROR, HybridCore.PLUGIN_ID,
                    "Error copying " + source + " to " + target, e));
        }
    }

    @Override
    public void unInstall() throws CoreException {
        File todelete = target;
        if (source.isFile() && target.isDirectory()) {//append the filename, this was a directory copy
            todelete = new File(target, source.getName());
        }
        if (todelete.isDirectory()) {
            try {
                FileUtils.deleteDirectory(todelete);
            } catch (IOException e) {
                throw new CoreException(
                        new Status(IStatus.ERROR, HybridCore.PLUGIN_ID, "Error deleting file " + target, e));
            }
        } else {
            try {
                todelete.delete();
            } catch (SecurityException e) {
                throw new CoreException(
                        new Status(IStatus.ERROR, HybridCore.PLUGIN_ID, "Could not delete " + target));
            }
        }
    }

    @Override
    public String[] filesToOverwrite() {
        if (target.exists()) {
            if (source.isFile() && target.isDirectory()) {
                File file = new File(target, source.getName());
                if (file.exists()) {
                    return new String[] { file.toString() };
                }
            }
            return new String[] { target.toString() };
        }
        return new String[0];
    }

}