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.stream;
  
  import java.util.List;
  
  import org.apache.camel.BindToRegistry;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class StreamGroupLinesStrategyTest extends StreamGroupLinesTest {
  
      @BindToRegistry("myGroupStrategy")
      private MyGroupStrategy strat = new MyGroupStrategy();
  
      class MyGroupStrategy implements GroupStrategy {
  
          @Override
          public Object groupLines(List<String> lines) {
              StringBuilder buffer = new StringBuilder();
              for (String line : lines) {
                  buffer.append(line);
                  buffer.append(LS);
              }
              return buffer.toString();
          }
      }
  
      @Override
      @Test
      public void testGroupLines() throws Exception {
          MockEndpoint mock = getMockEndpoint("mock:result");
          mock.expectedMessageCount(2);
          mock.setAssertPeriod(1000);
          mock.message(0).header(StreamConstants.STREAM_INDEX).isEqualTo(0);
          mock.message(0).header(StreamConstants.STREAM_COMPLETE).isEqualTo(false);
          mock.message(1).header(StreamConstants.STREAM_INDEX).isEqualTo(1);
          mock.message(1).header(StreamConstants.STREAM_COMPLETE).isEqualTo(true);
  
          MockEndpoint.assertIsSatisfied(context);
  
          Object result = mock.getExchanges().get(0).getIn().getBody();
          assertEquals("A" + LS + "B" + LS + "C" + LS, result, "Get a wrong result.");
  
          Object result2 = mock.getExchanges().get(1).getIn().getBody();
          assertEquals("D" + LS + "E" + LS + "F" + LS, result2, "Get a wrong result.");
      }
  
      @Override
      protected RouteBuilder createRouteBuilder() {
          return new RouteBuilder() {
              @Override
              public void configure() {
                  from("stream:file?fileName=target/stream/streamfile.txt&groupLines=3&groupStrategy=#myGroupStrategy")
                          .to("mock:result");
              }
          };
      }
  
  }
  