/**
* Create a usage String representing the manager.
*
* <p>It will create a string like this : "Usage: enumArgumentTest [ -amvlps ] [ transactions num
* ]"
*
* @param manager the current manager
* @return the usage representation
*/
private String usage(CliArgumentManager manager) {
StringBuilder result = new StringBuilder();
List<CliArgument> arguments = manager.getArguments();
CliArgument defaultArg = manager.getDefaultArgument();
if (usageShort) {
// short version
StringBuilder mandatory = new StringBuilder();
boolean flag = false;
for (CliArgument argument : arguments) {
if (argument.isUsageHidden() || argument == defaultArg) {
continue;
}
if (argument.isMandatory()) {
mandatory.append(argument.getShortName().charAt(1));
} else {
if (!flag) {
result.append("[ -");
flag = true;
}
result.append(argument.getShortName().charAt(1));
}
}
if (flag) {
result.append(" ]");
}
if (mandatory.length() != 0) {
result.append(" -");
result.append(mandatory);
}
} else {
// full version
for (CliArgument argument : arguments) {
if (argument.isUsageHidden() || argument == defaultArg) {
continue;
}
result.append(argument.toString());
}
}
if (defaultArg != null) {
result.append(' ');
if (!defaultArg.isMandatory()) {
result.append("[ ");
}
result.append(defaultArg.toStringArgument());
if (!defaultArg.isMandatory()) {
result.append(" ]");
}
}
return result.toString();
}
@Override
public void displayInfo(CliArgumentManager manager, PrintStream output) {
output.printf(HELPER_INFO, manager.getProgramName());
output.print(manager.getNewLine());
}
@Override
public void displayUsage(CliArgumentManager manager, PrintStream output) {
output.printf(HELPER_USAGE, manager.getProgramName(), usage(manager));
output.print(manager.getNewLine());
}
