| /** |
| * 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.processor; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.apache.camel.Body; |
| import org.apache.camel.ContextTestSupport; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.component.mock.MockEndpoint; |
| import org.apache.camel.impl.JndiRegistry; |
| import org.apache.camel.processor.aggregate.AggregationStrategy; |
| |
| public class ComposedMessageProcessorTest extends ContextTestSupport { |
| |
| @SuppressWarnings("unchecked") |
| public void testValidatingCorrectOrder() throws Exception { |
| MockEndpoint resultEndpoint = getMockEndpoint("mock:result"); |
| resultEndpoint.expectedMessageCount(1); |
| resultEndpoint.expectedHeaderReceived("orderId", "myorderid"); |
| |
| List<OrderItem> order = Arrays.asList(new OrderItem[] { |
| new OrderItem("widget", 5), |
| new OrderItem("gadget", 10)}); |
| |
| template.sendBodyAndHeader("direct:start", order, "orderId", "myorderid"); |
| |
| assertMockEndpointsSatisfied(); |
| |
| List<OrderItem> validatedOrder = resultEndpoint.getExchanges().get(0).getIn().getBody(List.class); |
| assertTrue(validatedOrder.get(0).valid); |
| assertTrue(validatedOrder.get(1).valid); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public void testValidatingIncorrectOrder() throws Exception { |
| MockEndpoint resultEndpoint = getMockEndpoint("mock:result"); |
| resultEndpoint.expectedMessageCount(1); |
| resultEndpoint.expectedHeaderReceived("orderId", "myorderid"); |
| |
| // START SNIPPET: e1 |
| List<OrderItem> order = Arrays.asList(new OrderItem[] { |
| new OrderItem("widget", 500), |
| new OrderItem("gadget", 200)}); |
| |
| template.sendBodyAndHeader("direct:start", order, "orderId", "myorderid"); |
| // END SNIPPET: e1 |
| |
| assertMockEndpointsSatisfied(); |
| |
| List<OrderItem> validatedOrder = resultEndpoint.getExchanges().get(0).getIn().getBody(List.class); |
| assertFalse(validatedOrder.get(0).valid); |
| assertFalse(validatedOrder.get(1).valid); |
| } |
| |
| protected JndiRegistry createRegistry() throws Exception { |
| JndiRegistry jndi = super.createRegistry(); |
| jndi.bind("orderItemHelper", new OrderItemHelper()); |
| jndi.bind("widgetInventory", new WidgetInventory()); |
| jndi.bind("gadgetInventory", new GadgetInventory()); |
| return jndi; |
| } |
| |
| protected RouteBuilder createRouteBuilder() { |
| return new RouteBuilder() { |
| public void configure() { |
| // START SNIPPET: e2 |
| // split up the order so individual OrderItems can be validated by the appropriate bean |
| from("direct:start") |
| .split().body() |
| .choice() |
| .when().method("orderItemHelper", "isWidget") |
| .to("bean:widgetInventory") |
| .otherwise() |
| .to("bean:gadgetInventory") |
| .end() |
| .to("seda:aggregate"); |
| |
| // collect and re-assemble the validated OrderItems into an order again |
| from("seda:aggregate") |
| .aggregate(new MyOrderAggregationStrategy()).header("orderId").completionTimeout(1000L) |
| .to("mock:result"); |
| // END SNIPPET: e2 |
| } |
| }; |
| } |
| |
| // START SNIPPET: e3 |
| public static final class OrderItem { |
| String type; // type of the item |
| int quantity; // how many we want |
| boolean valid; // whether that many items can be ordered |
| |
| public OrderItem(String type, int quantity) { |
| this.type = type; |
| this.quantity = quantity; |
| } |
| } |
| // END SNIPPET: e3 |
| |
| public static final class OrderItemHelper { |
| private OrderItemHelper() { |
| } |
| |
| // START SNIPPET: e4 |
| public static boolean isWidget(@Body OrderItem orderItem) { |
| return orderItem.type.equals("widget"); |
| } |
| // END SNIPPET: e4 |
| } |
| |
| /** |
| * Bean that checks whether the specified number of widgets can be ordered |
| */ |
| // START SNIPPET: e5 |
| public static final class WidgetInventory { |
| public void checkInventory(@Body OrderItem orderItem) { |
| assertEquals("widget", orderItem.type); |
| if (orderItem.quantity < 10) { |
| orderItem.valid = true; |
| } |
| } |
| } |
| // END SNIPPET: e5 |
| |
| /** |
| * Bean that checks whether the specified number of gadgets can be ordered |
| */ |
| // START SNIPPET: e6 |
| public static final class GadgetInventory { |
| public void checkInventory(@Body OrderItem orderItem) { |
| assertEquals("gadget", orderItem.type); |
| if (orderItem.quantity < 20) { |
| orderItem.valid = true; |
| } |
| } |
| } |
| // END SNIPPET: e6 |
| |
| /** |
| * Aggregation strategy that re-assembles the validated OrderItems |
| * into an order, which is just a List. |
| */ |
| // START SNIPPET: e7 |
| public static final class MyOrderAggregationStrategy implements AggregationStrategy { |
| |
| public Exchange aggregate(Exchange oldExchange, Exchange newExchange) { |
| if (oldExchange == null) { |
| return newExchange; |
| } |
| |
| List<OrderItem> order = new ArrayList<OrderItem>(2); |
| order.add(oldExchange.getIn().getBody(OrderItem.class)); |
| order.add(newExchange.getIn().getBody(OrderItem.class)); |
| |
| oldExchange.getIn().setBody(order); |
| return oldExchange; |
| } |
| } |
| // END SNIPPET: e7 |
| } |