de.huxhorn.lilith.swing.callables.CleanObsoleteCallable.java Source code

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Here is the source code for de.huxhorn.lilith.swing.callables.CleanObsoleteCallable.java

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/*
 * Lilith - a log event viewer.
 * Copyright (C) 2007-2011 Joern Huxhorn
 *
 * 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 de.huxhorn.lilith.swing.callables;

import de.huxhorn.sulky.tasks.AbstractProgressingCallable;
import java.io.File;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class CleanObsoleteCallable extends AbstractProgressingCallable<Long>

{
    private final Logger logger = LoggerFactory.getLogger(CleanObsoleteCallable.class);

    private File parentDirectory;

    public CleanObsoleteCallable(File parentDirectory) {
        this.parentDirectory = parentDirectory;
    }

    public Long call() throws Exception {
        Long result = 0L;

        if (parentDirectory.isDirectory()) {
            setNumberOfSteps(1);
            result = 1L;
            FileUtils.deleteDirectory(parentDirectory);
            if (logger.isInfoEnabled()) {
                boolean deleted = !parentDirectory.exists();
                if (deleted) {
                    logger.info("Deleted obsolete directory '{}'.", parentDirectory);
                } else {
                    if (logger.isWarnEnabled()) {
                        logger.warn("Failed to delete obsolete directory '{}'!", parentDirectory);
                    }
                }
            }
            setCurrentStep(1);
        }

        return result;
    }
}