| /* |
| * 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.component.mock; |
| |
| import java.util.Date; |
| import java.util.LinkedHashSet; |
| import java.util.Set; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Expression; |
| import org.apache.camel.ExpressionFactory; |
| import org.apache.camel.Predicate; |
| import org.apache.camel.StreamCache; |
| import org.apache.camel.support.PredicateAssertHelper; |
| |
| /** |
| * A builder of assertions on message exchanges |
| */ |
| public abstract class AssertionClause extends MockExpressionClauseSupport<MockValueBuilder> implements Runnable { |
| |
| protected final MockEndpoint mock; |
| protected volatile int currentIndex; |
| private final Set<Predicate> predicates = new LinkedHashSet<>(); |
| private final Expression previous = new PreviousTimestamp(); |
| private final Expression next = new NextTimestamp(); |
| |
| public AssertionClause(MockEndpoint mock) { |
| super(null); |
| this.mock = mock; |
| } |
| |
| // Builder methods |
| // ------------------------------------------------------------------------- |
| |
| @Override |
| public MockValueBuilder expression(Expression expression) { |
| // must override this method as we provide null in the constructor |
| super.expression(expression); |
| return new PredicateValueBuilder(expression); |
| } |
| |
| @Override |
| public MockValueBuilder language(ExpressionFactory expression) { |
| // must override this method as we provide null in the constructor |
| super.expression(expression.createExpression(mock.getCamelContext())); |
| return new PredicateValueBuilder(getExpressionValue()); |
| } |
| |
| /** |
| * Adds the given predicate to this assertion clause |
| */ |
| public AssertionClause predicate(Predicate predicate) { |
| addPredicate(predicate); |
| return this; |
| } |
| |
| /** |
| * Adds the given predicate to this assertion clause |
| */ |
| public MockExpressionClause<AssertionClause> predicate() { |
| MockExpressionClause<AssertionClause> clause = new MockExpressionClause<>(this); |
| addPredicate(clause); |
| return clause; |
| } |
| |
| /** |
| * Adds a {@link TimeClause} predicate for message arriving. |
| */ |
| public TimeClause arrives() { |
| final TimeClause clause = new TimeClause(previous, next); |
| addPredicate(new Predicate() { |
| public boolean matches(Exchange exchange) { |
| return clause.matches(exchange); |
| } |
| |
| @Override |
| public String toString() { |
| return "arrives " + clause.toString() + " exchange"; |
| } |
| }); |
| return clause; |
| } |
| |
| /** |
| * Performs any assertions on the given exchange |
| */ |
| protected void applyAssertionOn(MockEndpoint endpoint, int index, Exchange exchange) { |
| for (Predicate predicate : predicates) { |
| currentIndex = index; |
| |
| if (exchange != null) { |
| Object value = exchange.getMessage().getBody(); |
| // if the value is StreamCache then ensure its readable before evaluating any predicates |
| // by resetting it (this is also what StreamCachingAdvice does) |
| if (value instanceof StreamCache) { |
| ((StreamCache) value).reset(); |
| } |
| } |
| |
| PredicateAssertHelper.assertMatches(predicate, "Assertion error at index " + index + " on mock " + endpoint.getEndpointUri() + " with predicate: ", exchange); |
| } |
| } |
| |
| protected void addPredicate(Predicate predicate) { |
| predicates.add(predicate); |
| } |
| |
| @SuppressWarnings("unchecked") |
| private final class PreviousTimestamp implements Expression { |
| @Override |
| public <T> T evaluate(Exchange exchange, Class<T> type) { |
| Date answer = null; |
| if (currentIndex > 0 && mock.getReceivedCounter() > 0) { |
| answer = mock.getReceivedExchanges().get(currentIndex - 1).getProperty(Exchange.RECEIVED_TIMESTAMP, Date.class); |
| } |
| return (T) answer; |
| } |
| } |
| |
| @SuppressWarnings("unchecked") |
| private final class NextTimestamp implements Expression { |
| @Override |
| public <T> T evaluate(Exchange exchange, Class<T> type) { |
| Date answer = null; |
| if (currentIndex < mock.getReceivedCounter() - 1) { |
| answer = mock.getReceivedExchanges().get(currentIndex + 1).getProperty(Exchange.RECEIVED_TIMESTAMP, Date.class); |
| } |
| return (T) answer; |
| } |
| } |
| |
| /** |
| * Public class needed for fluent builders |
| */ |
| public final class PredicateValueBuilder extends MockValueBuilder { |
| |
| public PredicateValueBuilder(Expression expression) { |
| super(expression); |
| } |
| |
| @Override |
| protected Predicate onNewPredicate(Predicate predicate) { |
| predicate = super.onNewPredicate(predicate); |
| addPredicate(predicate); |
| return predicate; |
| } |
| |
| @Override |
| protected MockValueBuilder onNewValueBuilder(Expression exp) { |
| return new PredicateValueBuilder(exp); |
| } |
| } |
| } |