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/*
 * Copyright (C) 2006-2011 Alfresco Software Limited.
 *
 * This file is part of Alfresco
 *
 * Alfresco 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 3 of the License, or
 * (at your option) any later version.
 *
 * Alfresco 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 Alfresco. If not, see .
 */

package org.filesys.server.filesys.cache.hazelcast;

import org.filesys.debug.Debug;
import org.filesys.server.filesys.FileStatus;
import org.filesys.server.filesys.cache.FileState;
import org.filesys.server.filesys.cache.cluster.ClusterFileState;

import com.hazelcast.map.IMap;

/**
 * Rename File State Task Class
 *
 * @author gkspencer
 */
public class RenameStateTask extends RemoteStateTask {

    // Serialization id
    private static final long serialVersionUID = 1L;

    // New file state key/path
    private String m_newKey;

    // Flag to indicate path is to a folder
    private boolean m_folder;

    /**
     * Default constructor
     */
    public RenameStateTask() {
    }

    /**
     * Class constructor
     *
     * @param mapName     String
     * @param key         String
     * @param newKey      String
     * @param isFolder    boolean
     * @param debug       boolean
     * @param timingDebug boolean
     */
    public RenameStateTask(String mapName, String key, String newKey, boolean isFolder, boolean debug, boolean timingDebug) {
        super(mapName, key, true, true, debug, timingDebug);

        m_newKey = newKey;
        m_folder = isFolder;
    }

    /**
     * Run a remote task against a file state
     *
     * @param stateCache Map of paths/cluster file states
     * @param fState     ClusterFileState
     * @return Boolean
     * @throws Exception Error running remote task
     */
    protected Boolean runRemoteTaskAgainstState(IMap stateCache, HazelCastClusterFileState fState)
            throws Exception {

        // DEBUG
        if (hasDebug())
            Debug.println("RenameStateTask: Rename from " + getKey() + " to " + m_newKey);

        // Remove the existing file state from the cache, using the original name
        HazelCastClusterFileState state = stateCache.remove(getKey());

        // Set the file status
        state.setFileStatusInternal(m_folder ? FileStatus.DirectoryExists : FileStatus.FileExists, FileState.ChangeReason.None);

        // Clear attributes from the renamed state
        state.removeAllAttributes();

        // Update the file state path and add it back to the cache using the new name
        state.setPathInternal(m_newKey);
        stateCache.put(state.getPath(), state);

        // DEBUG
        if (hasDebug())
            Debug.println("Rename to " + m_newKey + " successful, state=" + state);

        // Return the rename status
        return Boolean.TRUE;
    }
}