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jakarta.validation-api with picocli #1798
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I suspect that is not possible but you can ask the maintainers of the jakarta.validation-api project, they may be better positioned to answer that question. |
@remkop I see that hibernate-validator is an implementation that uses validation but there is need to create |
There are several ways to think about this. However, the example in the user manual (calling a helper method from the Perhaps a nicer way is to have a custom Such a custom class ValidatingExecutionStrategy implements IExecutionStrategy {
public int execute(ParseResult parseResult) {
validate(parseResult.commandSpec());
return new CommandLine.RunLast().execute(parseResult); // default execution strategy
}
void validate(CommandSpec spec) {
Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
Set<ConstraintViolation<Object>> violations = validator.validate(spec.userObject());
if (!violations.isEmpty()) {
String errorMsg = "";
for (ConstraintViolation<?> violation : violations) {
errorMsg += "ERROR: " + violation.getMessage() + "\n";
}
throw new ParameterException(spec.commandLine(), errorMsg);
}
}
} The application would wire it in like this: public static void main(String[] args) {
MyApp app = new MyApp();
new CommandLine(app)
.setExecutionStrategy(new ValidatingExecutionStrategy())
.execute(args);
} I have added this example to the user manual (the HTML will be published with the next release), |
@remkop thanks 😃 Logger.getLogger("org.hibernate").setLevel(Level.OFF);
final CommandLine commandLine = new CommandLine(DiceRoller.class);
CommandLine.IExecutionStrategy executionStrategy = commandLine.getExecutionStrategy();
commandLine.setExecutionStrategy(parseResult ->
{
try (ValidatorFactory validatorFactory = Validation.buildDefaultValidatorFactory())
{
Set<ConstraintViolation<Object>> violations = validatorFactory.getValidator().validate(parseResult.commandSpec().userObject());
if (!violations.isEmpty())
{
final StringBuilder errorMsg = new StringBuilder();
for (ConstraintViolation<?> violation : violations)
errorMsg.append("ERROR: ").append(violation.getPropertyPath()).append(' ').append(violation.getMessage()).append(System.lineSeparator());
throw new CommandLine.ParameterException(parseResult.commandSpec().commandLine(), errorMsg.toString());
}
}
return executionStrategy.execute(parseResult);
})
.execute(args); |
is there a way to use jakarta.validation-api with plain picocli (without Springboot/Hibernate etc.)? it may be silly but I'm trying to use it as it is but is doesn't work.
Example:
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