/**
     * Constructs an AndX message block with configuration and command
     * @param config the configuration
     * @param command the SMB command
     */
    protected AndXServerMessageBlock(final Configuration config, final byte command) {
        this(config, command, null);
    }

    /**
     * Constructs an AndX message block with command and chained command
     * @param config the configuration

    protected static final short SMB2_WRITE = 0x0009;
    /** SMB2 lock file command */
    protected static final short SMB2_LOCK = 0x000A;
    /** SMB2 IO control command */
    protected static final short SMB2_IOCTL = 0x000B;
    /** SMB2 cancel command */
    protected static final short SMB2_CANCEL = 0x000C;
    /** SMB2 echo/keepalive command */
    protected static final short SMB2_ECHO = 0x000D;

     * @param mid the message ID to set
     */
    void setMid(long mid);

    /**
     * Gets the SMB command.
     *
     * @return the command
     */
    int getCommand();

    /**
     * Sets the SMB command.
     *
     * @param command the command to set
     */
    void setCommand(int command);

    /**
     * Sets the user ID.
     *
     * @param uid the user ID to set
     */

    }

    /**
     * Executes an external command with the given parameters.
     * @param commands The command array to execute.
     * @param username The username parameter for the command.
     * @param password The password parameter for the command.
     * @return The exit code of the executed command.
     */
    protected int executeCommand(final String[] commands, final String username, final String password) {

/**
 * Exception thrown when command execution fails.
 * This exception indicates that an external command or process execution encountered an error.
 */
public class CommandExecutionException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructor with error message.
     * @param message The error message describing the command execution failure.
     */

        lastaEnv = env;
        return this;
    }

    /**
     * Adds a system property to the command list.
     * If the property exists in the system, it uses that value with optional append value.
     * Otherwise, it uses the default value if provided.
     *
     * @param cmdList the command list to add the property to
     * @param name the property name

        super(config);
    }

    /**
     * Constructor for SMB2 request with configuration and command.
     *
     * @param config the configuration object
     * @param command the SMB2 command code
     */
    public ServerMessageBlock2Request(final Configuration config, final int command) {
        super(config, command);
    }

    @Override
    public ServerMessageBlock2Request<T> ignoreDisconnect() {

        this.streamCloseTimeout = streamCloseTimeout;
    }

    /**
     * Sends a command to the process associated with the given session ID.
     * Uses finer-grained locking to avoid blocking other operations during I/O.
     *
     * @param sessionId unique identifier for the process session
     * @param command the command to send to the process
     * @throws JobNotFoundException if no process is found for the given session ID

import jakarta.annotation.PostConstruct;

/**
 * Command-based thumbnail generator that executes external commands to create thumbnails.
 * Uses external tools through command execution to generate thumbnail images from documents.
 */
public class CommandGenerator extends BaseThumbnailGenerator {
    private static final Logger logger = LogManager.getLogger(CommandGenerator.class);

    /** List of command strings to execute for thumbnail generation. */

/**
 * SMB1 Logoff AndX request message.
 *
 * This command is used to terminate a user session that was
 * previously established with a Session Setup AndX command.
 */
public class SmbComLogoffAndX extends AndXServerMessageBlock {

    /**
     * Creates a new SMB1 logoff request to end a user session.
     *
     * @param config the CIFS configuration
     * @param andx the next command in the AndX chain, or null
     */