/*
* Copyright (c) 2011-2015 The original author or authors
* ------------------------------------------------------
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* The Apache License v2.0 is available at
* http://www.opensource.org/licenses/apache2.0.php
*
* You may elect to redistribute this code under either of these licenses.
*/
package io.vertx.core.cli;
import java.util.Collection;
import java.util.stream.Collectors;
/**
* Exception thrown when an option was expected and was not found on the command line.
*
* @author Clement Escoffier <clement@apache.org>
*/
public class MissingOptionException extends CLIException {
private final Collection<Option> expected;
/**
* Creates a new instance of {@link MissingOptionException}.
*
* @param expected the list of expected options (missing options)
*/
public MissingOptionException(Collection<Option> expected) {
super("The option"
+ (expected.size() > 1 ? "s " : " ")
+ expected.stream().map(Option::getName).collect(Collectors.toList())
+ (expected.size() > 1 ? " are" : " is")
+ " required");
this.expected = expected;
}
/**
* @return the missing (mandatory) options.
*/
public Collection<Option> getExpected() {
return expected;
}
}