AbsCleanTask.java

package org.objectweb.jonas_lib.deployment.work;

import java.io.File;

import java.util.Enumeration;
import java.util.Vector;

import org.objectweb.util.monolog.api.Logger;
import org.objectweb.util.monolog.api.BasicLevel;

import org.objectweb.jonas.common.Log;

public abstract class AbsCleanTask {

    private static Logger logger = Log.getLogger(Log.JONAS_DEPLOY_WORK_PREFIX);

    protected AbsCleanTask() {
    }

    protected static Logger getLogger() {
        return logger;
    }

    protected abstract boolean isValidLogEntry(LogEntry logEntry) throws CleanerException;

    protected abstract void removeLogEntry(LogEntry logEntry) throws CleanerException;

    protected abstract Vector getLogEntries();

    protected abstract boolean isDeployLogEntry(LogEntry logEntry) throws CleanerException;

    public void execute() throws CleanerException {

        getLogger().log(BasicLevel.DEBUG, "execute : called");

        // Get the entries from the logger
        Vector logEntries = getLogEntries();

        // Check if the files in this vector exists
        LogEntry logEntry = null;

        for (Enumeration e = logEntries.elements(); e.hasMoreElements();) {

            logEntry = (LogEntry) e.nextElement();
            getLogger().log(BasicLevel.DEBUG,
                    "LogEntry <" + logEntry.getOriginal().getName() + "," + logEntry.getCopy().getName() + ">");

            // if the package is deployed, do nothing
            if (isDeployLogEntry(logEntry)) {
                getLogger().log(BasicLevel.DEBUG, "LogEntry currently deployed - > do nothing");

                continue;

            }

            // if the source package file doesn't exists anymore
            // or if the file is present but don't care the right timestamp
            if (!isValidLogEntry(logEntry)) {

                // we remove the entry
                removeLogEntry(logEntry);

                // enumeration is now inconsistent, so we 're restarting the
                // loop
                e = logEntries.elements();

            }
            //else time stamp always the same
        }
    }

    protected void removeRecursiveDirectory(File file) {

        //File or directory doesn't exists, exit.
        if (!file.exists()) {
            return;
        }

        //Remove the child before the current file(directory)
        if (file.isDirectory()) {
            //remove all the child
            File[] childFiles = file.listFiles();
            for (int i = 0; i < childFiles.length; i++) {
                removeRecursiveDirectory(childFiles[i]);
            }
        }
        //Since all childs are removed , remove us
        file.delete();
    }
}

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