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package bjc.utils.cli;
/**
* Generic command implementation.
*
* @author ben
*/
public class GenericCommand implements Command {
/* The behavior for invoking the command. */
private final CommandHandler handler;
/* The help for the command. */
private CommandHelp help;
/** Create a new generic command.
*
* @param handler The handler to use for the command.
* @param summary The summary of the command. May be null, in which case a
* default is provided.
* @param description The detailed help message for the command. May be null,
* in which case the summary is repeated for the
* detailed help. */
public GenericCommand(final CommandHandler handler, final String summary,
final String description) {
if (handler == null)
throw new NullPointerException("Command handler must not be null");
this.handler = handler;
if (summary == null) this.help = new NullHelp();
else this.help = new GenericHelp(summary, description);
}
@Override
public CommandHandler getHandler() {
return handler;
}
@Override
public CommandHelp getHelp() {
return help;
}
@Override
public String toString() {
return String.format("GenericCommand [help=%s]", help);
}
}
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