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/*
 * Copyright (C) 2006-2010 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.pseudo;

import java.io.IOException;

import org.filesys.server.filesys.AccessDeniedException;
import org.filesys.server.filesys.FileAttribute;
import org.filesys.server.filesys.NetworkFile;


/**
 * Pseudo Folder Network File Class
 *
 * 
 * Represents an open pseudo folder.
 *
 * @author gkspencer
 */
public class PseudoFolderNetworkFile extends NetworkFile {

    /**
     * Class constructor.
     *
     * @param name String
     */
    public PseudoFolderNetworkFile(String name) {
        super(name);

        setAttributes(FileAttribute.Directory);
    }

    /**
     * Class constructor.
     *
     * @param name    String
     * @param relPath String
     */
    public PseudoFolderNetworkFile(String name, String relPath) {
        super(name);

        setFullName(relPath);
        setAttributes(FileAttribute.Directory);
    }

    /**
     * Close the network file.
     */
    public void closeFile() throws java.io.IOException {

        // Nothing to do
    }

    /**
     * Return the current file position.
     *
     * @return long
     */
    public long currentPosition() {
        return 0L;
    }

    /**
     * Flush the file.
     *
     * @throws IOException Failed to flush the file
     */
    public void flushFile()
            throws IOException {

        // Nothing to do
    }

    /**
     * Determine if the end of file has been reached.
     *
     * @return boolean
     * @exception IOException Error checking the end of file status
     */
    public boolean isEndOfFile()
            throws IOException {

        return true;
    }

    /**
     * Open the file.
     *
     * @param createFlag boolean
     * @throws IOException Failed to open the file
     */
    public void openFile(boolean createFlag)
            throws IOException {

    }

    /**
     * Read from the file.
     *
     * @param buf     byte[]
     * @param len     int
     * @param pos     int
     * @param fileOff long
     * @return Length of data read.
     * @throws IOException Failed to read from the file
     */
    public int readFile(byte[] buf, int len, int pos, long fileOff)
            throws IOException {

        throw new AccessDeniedException("Attempt to read/write folder file");
    }

    /**
     * Seek to the specified file position.
     *
     * @param pos long
     * @param typ int
     * @return long
     * @throws IOException Failed to set the file position
     */
    public long seekFile(long pos, int typ)
            throws IOException {

        throw new AccessDeniedException("Attempt to read/write folder file");
    }

    /**
     * Truncate the file
     *
     * @param siz long
     * @throws IOException Failed to truncate the file
     */
    public void truncateFile(long siz)
            throws IOException {

        throw new AccessDeniedException("Attempt to read/write folder file");
    }

    /**
     * Write a block of data to the file.
     *
     * @param buf byte[]
     * @param len int
     * @param pos int
     * @throws IOException Failed to write to the file
     */
    public void writeFile(byte[] buf, int len, int pos)
            throws IOException {

        throw new AccessDeniedException("Attempt to read/write folder file");
    }

    /**
     * Write a block of data to the file.
     *
     * @param buf    byte[]
     * @param len    int
     * @param pos    int
     * @param offset long
     * @throws IOException Failed to write to the file
     */
    public void writeFile(byte[] buf, int len, int pos, long offset)
            throws IOException {

        throw new AccessDeniedException("Attempt to read/write folder file");
    }
}