TempDir.java

package ddth.dasp.common.tempdir;

import java.io.File;

import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class TempDir {

    private final static Logger LOGGER = LoggerFactory.getLogger(TempDir.class);
    private File tempDir;
    private boolean created = false;

    public TempDir(String parent, String name) {
        tempDir = new File(parent, name);
    }

    public TempDir(File parent, String name) {
        tempDir = new File(parent, name);
    }

    public TempDir(TempDir parent, String name) {
        tempDir = new File(parent.tempDir, name);
    }

    @Override
    public String toString() {
        return tempDir.toString();
    }

    /**
     * Gets the tempdir instance. This method will try to create the tempdir if
     * it does not exist.
     * 
     * @return
     */
    public File get() {
        if (!tempDir.exists()) {
            create();
        }
        return tempDir;
    }

    /**
     * Try to create the tempdir (including any necessary but nonexistent parent
     * directories).
     * 
     * @return
     */
    public boolean create() {
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("Creating tempdir [" + tempDir + "]...");
        }
        created = true;
        return tempDir.mkdirs();
    }

    /**
     * Deletes the tempdir.
     */
    public void delete() {
        if (!created) {
            return;
        }
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("Deleting tempdir [" + tempDir + "]...");
        }
        created = false;
        FileUtils.deleteQuietly(tempDir);
    }
}