Interface CommandExecutor

All Known Implementing Classes:

LocalCommandExecutor, SshCommandExecutor

public interface CommandExecutor

Abstraction for command execution that can be implemented for different contexts.

This interface allows the same action implementation to work in different execution environments:

• SshCommandExecutor - Executes commands on remote nodes via SSH
• LocalCommandExecutor - Executes commands on the local machine

Since:

2.15.0

Author:

devteam@scivicslab.com

Method Summary

Modifier and Type	Method	Description
Node.CommandResult	execute(String command)	Executes a command and returns the result.
Node.CommandResult	execute(String command, Node.OutputCallback callback)	Executes a command and returns the result with output callback.
Node.CommandResult	executeSudo(String command)	Executes a command with sudo privileges.
Node.CommandResult	executeSudo(String command, Node.OutputCallback callback)	Executes a command with sudo privileges and output callback.
String	getIdentifier()	Gets a short identifier for this executor (e.g., hostname).

Method Details

execute

Node.CommandResult execute(String command)
                    throws IOException

Executes a command and returns the result.

Parameters:

command - the command to execute

Returns:

the result of command execution

Throws:

IOException - if command execution fails

execute

Node.CommandResult execute(String command,
 Node.OutputCallback callback)
                    throws IOException

Executes a command and returns the result with output callback.

Parameters:

command - the command to execute

callback - the callback for real-time output (may be null)

Returns:

the result of command execution

Throws:

IOException - if command execution fails

executeSudo

Node.CommandResult executeSudo(String command)
                        throws IOException

Executes a command with sudo privileges.

Parameters:

command - the command to execute with sudo

Returns:

the result of command execution

Throws:

IOException - if command execution fails or SUDO_PASSWORD is not set

executeSudo

Node.CommandResult executeSudo(String command,
 Node.OutputCallback callback)
                        throws IOException

Executes a command with sudo privileges and output callback.

Parameters:

command - the command to execute with sudo

callback - the callback for real-time output (may be null)

Returns:

the result of command execution

Throws:

IOException - if command execution fails or SUDO_PASSWORD is not set

getIdentifier

String getIdentifier()

Gets a short identifier for this executor (e.g., hostname).

Returns:

the identifier string