org.crsh.lang
Class LanguageCommandResolver

java.lang.Object
  org.crsh.lang.LanguageCommandResolver

All Implemented Interfaces:

CommandResolver

public class LanguageCommandResolver
extends Object
implements CommandResolver

A shell command resolver for languages.

Author:

Julien Viet

Field Summary

(package private) HashMap<String,Compiler>	activeCompilers .
private Map<String,TimestampedObject<CommandResolution>>	commandCache .
(package private) PluginContext	context .

Constructor Summary

LanguageCommandResolver(PluginContext context)

Method Summary

Compiler	getCompiler(String name)
Iterable<Map.Entry<String,String>>	getDescriptions()
private CommandResolution	resolveCommand(Compiler manager, String name, Resource script)
Command<?>	resolveCommand(String name) Attempt to obtain a command.
private CommandResolution	resolveCommand2(String name)

Methods inherited from class java.lang.Object

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

Field Detail

commandCache

private final Map<String,TimestampedObject<CommandResolution>> commandCache

.

activeCompilers

final HashMap<String,Compiler> activeCompilers

.

context

final PluginContext context

.

Constructor Detail

LanguageCommandResolver

public LanguageCommandResolver(PluginContext context)

Method Detail

getCompiler

public Compiler getCompiler(String name)

getDescriptions

public Iterable<Map.Entry<String,String>> getDescriptions()

Specified by:

getDescriptions in interface CommandResolver

Returns:

the known command names by this resolver, the returned map keys are the command names and the values are the corresponding one line description of the command

resolveCommand

public Command<?> resolveCommand(String name)
                          throws CommandException,
                                 NullPointerException

Description copied from interface: CommandResolver

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

Specified by:

resolveCommand in interface CommandResolver

Parameters:

name - the command name

Returns:

the command shell

Throws:

CommandException - if an error occured preventing the command creation

NullPointerException - if the name argument is null

resolveCommand2

private CommandResolution resolveCommand2(String name)
                                   throws CommandException,
                                          NullPointerException

Throws:

CommandException

NullPointerException

resolveCommand

private CommandResolution resolveCommand(Compiler manager,
                                         String name,
                                         Resource script)
                                  throws CommandException

Throws:

CommandException