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.component.velocity;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import org.apache.camel.EndpointInject;
  import org.apache.camel.Produce;
  import org.apache.camel.ProducerTemplate;
  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.Test;
  
  public class VelocitySupplementalContextTest extends CamelTestSupport {
  
      @Produce("direct:input")
      protected ProducerTemplate inputEndpoint;
  
      @EndpointInject("mock:results")
      protected MockEndpoint outputEndpoint;
  
      @Test
      public void testCamelRoute() throws Exception {
          outputEndpoint.expectedMessageCount(1);
          outputEndpoint.expectedHeaderReceived("body", "new_body");
          outputEndpoint.expectedHeaderReceived("in.body", "old_body");
          outputEndpoint.expectedBodiesReceived("bar");
  
          Map<String, Object> headers = new HashMap<>();
          headers.put(VelocityConstants.VELOCITY_TEMPLATE,
                  "#set( $headers.body = ${body} )\n#set( $headers['in.body'] = $in.body )\n" + "bar");
          inputEndpoint.sendBodyAndHeaders("old_body", headers);
  
          MockEndpoint.assertIsSatisfied(context);
      }
  
      @Override
      protected RouteBuilder createRouteBuilder() {
  
          final Map<String, Object> supplementalContext = new HashMap<>();
          supplementalContext.put("body", "new_body");
  
          return new RouteBuilder() {
              @Override
              public void configure() {
                  from("direct:input")
                          .setHeader(VelocityConstants.VELOCITY_SUPPLEMENTAL_CONTEXT).constant(supplementalContext)
                          .to("velocity:template-in-header?allowTemplateFromHeader=true&allowContextMapAll=true")
                          .to("mock:results");
              }
          };
      }
  
  }
  