org.crsh.shell.impl.command

Class CRaSH

java.lang.Object

org.crsh.shell.impl.command.CRaSH

public class CRaSH
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
private Map<String,TimestampedObject<? extends ShellCommand>>	commandCache .
(package private) PluginContext	context .
(package private) HashMap<String,CommandManager>	managers .

Constructor Summary

Constructors

Constructor and Description
CRaSH(PluginContext context) Create a new CRaSH.

Method Summary

Methods

Modifier and Type	Method and Description
CRaSHSession	createSession(Principal user)
ShellCommand	getCommand(String name) Attempt to obtain a command instance.
Iterable<String>	getCommandNames()
PluginContext	getContext() Returns the plugin context.
private ShellCommand	getShellCommand(CommandManager manager, String name, Resource script)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

context

final PluginContext context

.

managers

final HashMap<String,CommandManager> managers

.

commandCache

private final Map<String,TimestampedObject<? extends ShellCommand>> commandCache

.

Constructor Detail

CRaSH

public CRaSH(PluginContext context)
      throws NullPointerException

Create a new CRaSH.

Parameters:

context - the plugin context

Throws:

NullPointerException - if the context argument is null

Method Detail

createSession

public CRaSHSession createSession(Principal user)

getContext

public PluginContext getContext()

Returns the plugin context.

Returns:

the plugin context

getCommand

public ShellCommand getCommand(String name)
                        throws CommandCreationException,
                               NullPointerException

Attempt to obtain a command instance. Null is returned when such command does not exist.

Parameters:

name - the command name

Returns:

a command instance

Throws:

CommandCreationException - if an error occured preventing the command creation

NullPointerException - if the name argument is null

getCommandNames

public Iterable<String> getCommandNames()

getShellCommand

private ShellCommand getShellCommand(CommandManager manager,
                           String name,
                           Resource script)
                              throws CommandCreationException

Throws:

CommandCreationException