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.zipfile.springboot;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.util.zip.ZipEntry;
  import java.util.zip.ZipInputStream;
  
  import org.apache.camel.EndpointInject;
  import org.apache.camel.ProducerTemplate;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.apache.camel.processor.aggregate.zipfile.ZipAggregationStrategy;
  import org.apache.camel.spring.boot.CamelAutoConfiguration;
  
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.boot.test.context.SpringBootTest;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.test.annotation.DirtiesContext;
  import org.apache.camel.test.junit5.TestSupport;
  import org.apache.camel.test.spring.junit5.CamelSpringBootTest;
  import org.apache.camel.util.IOHelper;
  
  @DirtiesContext
  @CamelSpringBootTest
  @SpringBootTest(classes = { CamelAutoConfiguration.class, ZipAggregationStrategyEmptyFileTest.class,
          ZipAggregationStrategyEmptyFileTest.TestConfiguration.class })
  public class ZipAggregationStrategyEmptyFileTest {
  
      private static final int EXPECTED_NO_FILES = 3;
      private static final String TEST_DIR = "target/out_ZipAggregationStrategyEmptyFileTest";
  
      @Autowired
      ProducerTemplate template;
  
      @EndpointInject("mock:aggregateToZipEntry")
      MockEndpoint mock;
  
      @BeforeEach
      public void setUp() throws Exception {
          TestSupport.deleteDirectory("target/foo");
          TestSupport.deleteDirectory(TEST_DIR);
      }
  
      @Test
      public void testEmptyFile() throws Exception {
  
          mock.expectedMessageCount(1);
  
          template.sendBody("file:target/foo", "Hello");
          // empty file which is not aggregated
          template.sendBody("file:target/foo", "");
          template.sendBody("file:target/foo", "Bye");
          template.sendBody("file:target/foo", "Howdy");
  
          mock.assertIsSatisfied();
  
          File[] files = new File(TEST_DIR).listFiles();
          assertNotNull(files);
          assertTrue(files.length > 0, "Should be a file in " + TEST_DIR + " directory");
  
          File resultFile = files[0];
  
          ZipInputStream zin = new ZipInputStream(new FileInputStream(resultFile));
          try {
              int fileCount = 0;
              for (ZipEntry ze = zin.getNextEntry(); ze != null; ze = zin.getNextEntry()) {
                  fileCount++;
              }
              assertEquals(ZipAggregationStrategyEmptyFileTest.EXPECTED_NO_FILES, fileCount,
                      "Zip file should contains " + ZipAggregationStrategyEmptyFileTest.EXPECTED_NO_FILES + " files");
          } finally {
              IOHelper.close(zin);
          }
      }
  
      // *************************************
      // Config
      // *************************************
  
      @Configuration
      public static class TestConfiguration {
  
          @Bean
          public RouteBuilder routeBuilder() {
              return new RouteBuilder() {
                  @Override
                  public void configure() {
                      from("file:target/foo").aggregate(new ZipAggregationStrategy()).constant(true).completionSize(4)
                              .eagerCheckCompletion().to("file:" + TEST_DIR).to("mock:aggregateToZipEntry")
                              .log("Done processing zip file: ${header.CamelFileName}");
                  }
              };
          }
      }
  
  }
  