org.crsh.shell.impl.command.spi
Class CommandManagerProxy

java.lang.Object
  org.crsh.plugin.CRaSHPlugin<CommandManager>
      org.crsh.shell.impl.command.spi.CommandManagerProxy

All Implemented Interfaces:

CommandManager

Direct Known Subclasses:

GroovyCommandManager

public class CommandManagerProxy
extends CRaSHPlugin<CommandManager>
implements CommandManager

A command manager that is able to load a command manager via reflection.

Author:

Julien Viet

Field Summary

private String	className .
private Set<String>	ext .
private String	name .
private AtomicReference<CommandManager>	real .

Fields inherited from class org.crsh.plugin.CRaSHPlugin

CONSTRUCTED, FAILED, INITIALIZED, INITIALIZING, log

Constructor Summary

CommandManagerProxy(String name, String className, Set<String> ext)

Method Summary

void	destroy(HashMap<String,Object> session)
String	doCallBack(HashMap<String,Object> session, String name, String defaultValue)
Set<String>	getExtensions() Returns the set of extensions managed by this implementation.
CommandManager	getImplementation() Returns the implementation.
void	init() Implement this method to know about init life cycle callback.
void	init(HashMap<String,Object> session)
boolean	isActive() Return true if this command manager is active.
CommandResolution	resolveCommand(String name, byte[] source) Resolve a command for the specified command name.

Methods inherited from class org.crsh.plugin.CRaSHPlugin

createConfigurationCapabilities, destroy, getConfigurationCapabilities, getContext, getStatus, getType, toString

Methods inherited from class java.lang.Object

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

Field Detail

real

private final AtomicReference<CommandManager> real

.

name

private final String name

.

className

private final String className

.

ext

private final Set<String> ext

.

Constructor Detail

CommandManagerProxy

public CommandManagerProxy(String name,
                           String className,
                           Set<String> ext)

Method Detail

getImplementation

public CommandManager getImplementation()

Description copied from class: CRaSHPlugin

Returns the implementation.

Specified by:

getImplementation in class CRaSHPlugin<CommandManager>

Returns:

the implementation

init

public void init()

Description copied from class: CRaSHPlugin

Implement this method to know about init life cycle callback.

Overrides:

init in class CRaSHPlugin<CommandManager>

isActive

public boolean isActive()

Description copied from interface: CommandManager

Return true if this command manager is active. Implementation can decide based on the runtime, for instance the Groovy REPL can be inactive when Groovy is not available at runtime.

Specified by:

isActive in interface CommandManager

Returns:

the active status

getExtensions

public Set<String> getExtensions()

Description copied from interface: CommandManager

Returns the set of extensions managed by this implementation.

Specified by:

getExtensions in interface CommandManager

Returns:

the set of extensions, for instance ("groovy")

resolveCommand

public CommandResolution resolveCommand(String name,
                                        byte[] source)
                                 throws CommandCreationException,
                                        NullPointerException

Description copied from interface: CommandManager

Resolve a command for the specified command name.

Specified by:

resolveCommand in interface CommandManager

Parameters:

name - the command name

source - the command source @return the command or null if no command can be resolved

Throws:

CommandCreationException - when the command exists but cannot be created

NullPointerException - if the command name is null

init

public void init(HashMap<String,Object> session)

Specified by:

init in interface CommandManager

destroy

public void destroy(HashMap<String,Object> session)

Specified by:

destroy in interface CommandManager

doCallBack

public String doCallBack(HashMap<String,Object> session,
                         String name,
                         String defaultValue)

Specified by:

doCallBack in interface CommandManager