/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.camel.util;
import org.apache.camel.BinaryPredicate;
import org.apache.camel.Exchange;
import org.apache.camel.Predicate;
/**
* A helper for doing {@link Predicate} assertions.
*
* @version
*/
public final class PredicateAssertHelper {
private PredicateAssertHelper() {
// Utility class
}
public static void assertMatches(Predicate predicate, String text, Exchange exchange) {
ObjectHelper.notNull(predicate, "predicate");
ObjectHelper.notNull(exchange, "exchange");
if (predicate instanceof BinaryPredicate) {
// special for binary evaluable as we can get more detailed information
BinaryPredicate eval = (BinaryPredicate) predicate;
String evalText = eval.matchesReturningFailureMessage(exchange);
if (evalText != null) {
throw new AssertionError(text + predicate + " evaluated as: " + evalText + " on " + exchange);
}
} else {
doAssertMatches(predicate, text, exchange);
}
}
private static void doAssertMatches(Predicate predicate, String text, Exchange exchange) {
if (!predicate.matches(exchange)) {
if (text == null) {
throw new AssertionError(predicate + " on " + exchange);
} else {
throw new AssertionError(text + predicate + " on " + exchange);
}
}
}
}