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package bjc.utils.cli;
/**
* A mode for determining the commands that are valid to enter, and then
* handling those commands
*
* @author ben
*
*/
public interface ICommandMode {
/**
* Check to see if this mode can handle the specified command
*
* @param command
* The command to check
* @return Whether or not this mode can handle the command. It is
* assumed not by default
*/
public default boolean canHandle(String command) {
return false;
};
/**
* Get the custom prompt for this mode
*
* @return the custom prompt for this mode
*
* @throws UnsupportedOperationException
* if this mode doesn't support a custom prompt
*/
public default String getCustomPrompt() {
throw new UnsupportedOperationException(
"This mode doesn't support a custom prompt");
}
/**
* Get the name of this command mode
*
* @return The name of this command mode, which is the empty string by
* default
*/
public default String getName() {
return "";
}
/**
* Process a command in this mode
*
* @param command
* The command to process
* @param args
* A list of arguments to the command
* @return The command mode to use for the next command. Defaults to
* returning this, and doing nothing else
*/
public default ICommandMode process(String command,
String[] args) {
return this;
}
/**
* Check if this mode uses a custom prompt
*
* @return Whether or not this mode uses a custom prompt
*/
public default boolean isCustomPromptEnabled() {
return false;
}
}
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