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.dataformat.bindy.fixed.multibytes;
  
  import java.nio.charset.StandardCharsets;
  
  import org.apache.camel.EndpointInject;
  import org.apache.camel.Exchange;
  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.dataformat.bindy.annotation.DataField;
  import org.apache.camel.dataformat.bindy.annotation.FixedLengthRecord;
  import org.apache.camel.dataformat.bindy.fixed.BindyFixedLengthDataFormat;
  import org.apache.camel.test.junit5.CamelTestSupport;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class BindyMultiBytesTest extends CamelTestSupport {
  
      @Produce("direct:in")
      private ProducerTemplate producer;
  
      @EndpointInject("mock:result")
      private MockEndpoint result;
  
      // *************************************************************************
      // TESTS
      // *************************************************************************
  
      /**
       * Let's assume we want to read the content of a 10 bytes record from an UTF-8 encoded file. test string takes 10
       * bytes with 9 characters (2 char = 3 bytes content + padding). I assume to be able to read 9 char string from this
       * 10 bytes fixed length record with bindy.
       */
      @Test
      public void testMultiBytes() throws Exception {
          String test = "a\u00DF        ";
          assertEquals(10, test.length(), "Should be 10 length");
  
          byte[] testAsBytes = test.getBytes(StandardCharsets.UTF_8);
          assertEquals(11, testAsBytes.length, "A\u00DF takes 11 bytes, because \u00DF takes 2");
  
          result.expectedMessagesMatches(exchange -> test.equals(exchange.getIn().getBody(TestRecord.class).getField1()));
  
          producer.sendBody(test);
  
          result.assertIsSatisfied();
      }
  
      // *************************************************************************
      // ROUTES
      // *************************************************************************
  
      @Override
      protected RouteBuilder createRouteBuilder() {
          RouteBuilder routeBuilder = new RouteBuilder() {
  
              @Override
              public void configure() {
                  from("direct:in")
                          .setHeader(Exchange.CHARSET_NAME, constant(StandardCharsets.UTF_8.name()))
                          .unmarshal(new BindyFixedLengthDataFormat(TestRecord.class))
                          .to("mock:result");
              }
          };
  
          return routeBuilder;
      }
  
      @FixedLengthRecord(length = 10, paddingChar = ' ')
      public static class TestRecord {
  
          @DataField(pos = 1, length = 10)
          private String field1;
  
          public String getField1() {
              return field1;
          }
  
          public void setField1(String field1) {
              this.field1 = field1;
          }
  
      }
  }
  