content: /*
   * 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.attachment;
  
  import java.io.File;
  import java.util.Iterator;
  
  import jakarta.activation.DataHandler;
  import jakarta.activation.FileDataSource;
  
  import org.apache.camel.Exchange;
  import org.apache.camel.Processor;
  import org.apache.camel.RoutesBuilder;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.apache.camel.test.junit5.CamelTestSupport;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  public class WireTapTest extends CamelTestSupport {
  
      @Test
      public void testWireTap() throws Exception {
          getMockEndpoint("mock:result").expectedMessageCount(1);
          getMockEndpoint("mock:tap").expectedMessageCount(1);
  
          template.sendBody("direct:start", "Hello World");
  
          MockEndpoint.assertIsSatisfied(context);
  
          Exchange e1 = getMockEndpoint("mock:result").getReceivedExchanges().get(0);
          Exchange e2 = getMockEndpoint("mock:tap").getReceivedExchanges().get(0);
  
          AttachmentMessage am1 = e1.getMessage(AttachmentMessage.class);
          AttachmentMessage am2 = e2.getMessage(AttachmentMessage.class);
  
          // original has 1 attachment
          Assertions.assertTrue(am1.hasAttachments());
          Assertions.assertEquals(1, am1.getAttachmentNames().size());
          Assertions.assertEquals("message1.xml", am1.getAttachmentNames().iterator().next());
  
          // tap has 2 because of 1 original and 1 added afterwards
          Assertions.assertTrue(am2.hasAttachments());
          Assertions.assertEquals(2, am2.getAttachmentNames().size());
          Iterator<String> it = am2.getAttachmentNames().iterator();
          Assertions.assertEquals("message1.xml", it.next());
          Assertions.assertEquals("message2.xml", it.next());
      }
  
      @Override
      protected RoutesBuilder createRouteBuilder() {
          return new RouteBuilder() {
              @Override
              public void configure() {
                  from("direct:start")
                          .process(new Processor() {
                              @Override
                              public void process(Exchange exchange) {
                                  AttachmentMessage am = exchange.getMessage(AttachmentMessage.class);
                                  am.addAttachment("message1.xml",
                                          new DataHandler(new FileDataSource(new File("src/test/data/message1.xml"))));
                              }
                          })
                          .wireTap("direct:tap")
                          .to("mock:result");
  
                  from("direct:tap")
                          .process(new Processor() {
                              @Override
                              public void process(Exchange exchange) {
                                  AttachmentMessage am = exchange.getMessage(AttachmentMessage.class);
                                  am.addAttachmentObject("message2.xml",
                                          new DefaultAttachment(new FileDataSource(new File("src/test/data/message2.xml"))));
                              }
                          }).to("mock:tap");
              }
          };
      }
  }
  