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/**
 * JOnAS: Java(TM) Open Application Server
 * Copyright (C) 2005 Bull S.A.
 * Contact: [email protected]
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 * USA
 *
 * Initial developer: Benoit Pelletier
 * --------------------------------------------------------------------------
 * $Id: ClusterTasks.java 6896 2005-06-07 08:21:28Z pelletib $
 * --------------------------------------------------------------------------
 */

package org.objectweb.jonas.ant.cluster;

import java.util.ArrayList;
import java.util.List;

import org.apache.tools.ant.Task;

import org.objectweb.jonas.ant.jonasbase.Tasks;

/**
 * Defines a common cluster task
 * @author Benoit Pelletier
 */
public abstract class ClusterTasks extends Tasks {

    /**
     * Archictecture of the JOnAS's instances : contain both Web level and Ejb level
     */
    protected static final String ARCH_BOTH_WEB_EJB = "bothWebEjb";

    /**
     * Archictecture of the JOnAS's instances : separate Web level and Ejb level
     */
    protected static final String ARCH_SEPARATED_WEB_EJB = "separatedWebEjb";

    /**
     * Information for the logger
     */
    private String logInfo = null;

    /**
     * Prefix to the destination directory (JONAS_BASE)
     */
    private String destDirPrefix = null;

    /**
     * First index for the destDir suffix
     */
    private int destDirSuffixIndFirst = -1;

    /**
     * Last index for the destDir suffix
     */
    private int destDirSuffixIndLast = -1;

    /**
     * Cluster tasks List
     */
    private List clusterTasks = null;

    /**
     * Cluster architecture : share instance for web/ejb or separate them
     */
    private String arch = null;

    /**
     * Root task set just for logging purpose
     */
    private Task rootTask = null;

    /**
     * Constructor
     */
    public ClusterTasks() {
        clusterTasks = new ArrayList();
    }

    /**
     * Set directory prefix
     * @param destDirPrefix The destDirPrefix to set.
     */
    public void setDestDirPrefix(String destDirPrefix) {
        this.destDirPrefix = destDirPrefix;
    }

    /**
     * Gets the prefix of the destination directory
     * @return the prefix of the destination directory
     */
    public String getDestDirPrefix() {
        return destDirPrefix;
    }

    /**
     * @param destDirSuffixIndFirst The destDirSuffixIndFirst to set.
     */
    public void setDestDirSuffixIndFirst(int destDirSuffixIndFirst) {
        this.destDirSuffixIndFirst = destDirSuffixIndFirst;
    }

    /**
     * Gets the first index of the destDir suffix
     * @return the first index of the destDir suffix
     */
    public int getDestDirSuffixIndFirst() {
        return destDirSuffixIndFirst;
    }

    /**
     * @param destDirSuffixIndLast The destDirSuffixIndLast to set.
     */
    public void setDestDirSuffixIndLast(int destDirSuffixIndLast) {
        this.destDirSuffixIndLast = destDirSuffixIndLast;
    }
    /**
     * Gets the last index of the destDir suffix
     * @return the last index of the destDir suffix
     */
    public int getDestDirSuffixIndLast() {
        return destDirSuffixIndLast;
    }

    /**
     * Gets logger info (to be displayed)
     * @return logger info
     * @see org.objectweb.jonas.ant.jonasbase.BaseTaskItf#getLogInfo()
     */
    public String getLogInfo() {
        return logInfo;
    }

    /**
     * Set the info to be displayed by the logger
     * @param logInfo information to be displayed
     * @see org.objectweb.jonas.ant.jonasbase.BaseTaskItf#setLogInfo(java.lang.String)
     */
    public void setLogInfo(String logInfo) {
        this.logInfo = logInfo;
    }

    /**
     * Build dest dir with an index
     * @param destDirPrefix destination directory prefix
     * @param i index
     * @return destination directory
     */
    public static String getDestDir(String destDirPrefix, int i) {
        String destDir = destDirPrefix + i;
        return destDir;
    }

    /**
     * Set architecture
     * @param arch the architecture
     */
    public void setArch(String arch) {
        this.arch = arch;
    }

    /**
     * Get architecture
     * @return architecture
     */
    public String getArch() {
        return arch;
    }

    /**
     * Set root task
     * @param rootTask root task
     */
    public void setRootTask(Task rootTask) {
        this.rootTask = rootTask;
    }

    /**
     * Get root Task
     * @return rootTask root task
     */
    public Task getRootTask() {
        return rootTask;
    }

    /**
     * Add a task to the list of defined tasks
     * @param ct task to add
     */
    public void addClusterTask(ClusterTasks ct) {
        clusterTasks.add(ct);
    }

    /**
     * @return a list of all tasks to do
     */
    public List getClusterTasks() {
        return clusterTasks;
    }

    /**
     * Logging
     * @param msg message to log
     */
    public void log(String msg) {

        if (rootTask != null) {
            rootTask.log(msg);
        }
    }

    /**
     * Abstract generatesTasks()
     */
    public abstract void generatesTasks();
}