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.kafkaconnector.transforms;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.camel.component.slack.helper.SlackMessage;
  import org.apache.camel.component.slack.helper.SlackMessage.Attachment;
  import org.apache.camel.component.slack.helper.SlackMessage.Attachment.Field;
  import org.apache.kafka.connect.connector.ConnectRecord;
  import org.apache.kafka.connect.data.Schema;
  import org.apache.kafka.connect.data.Struct;
  import org.apache.kafka.connect.errors.ConnectException;
  import org.apache.kafka.connect.source.SourceRecord;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class SourcePojoToSchemaAndStructTransformTest {
  
      @Test
      public void testRecordValueConversion() {
          SourcePojoToSchemaAndStructTransform sourcePojoToSchemaAndStructTransform = new SourcePojoToSchemaAndStructTransform();
          sourcePojoToSchemaAndStructTransform.configure(Collections.emptyMap());
  
          SlackMessage sm = new SlackMessage();
  
          SlackMessage.Attachment at1 = new Attachment();
          SlackMessage.Attachment.Field at1f1 = new Field();
          at1f1.setTitle("ciao");
          at1f1.setShortValue(true);
          at1.setFields(new ArrayList<SlackMessage.Attachment.Field>(Collections.singleton(at1f1)));
          at1.setAuthorName("Andrea");
  
          SlackMessage.Attachment at2 = new Attachment();
          at2.setColor("green");
  
          ArrayList<SlackMessage.Attachment> attachments = new ArrayList<>();
          attachments.add(at1);
          attachments.add(at2);
  
          sm.setAttachments(attachments);
  
          ConnectRecord cr = new SourceRecord(null, null, "testTopic",
                  Schema.STRING_SCHEMA, "testKeyValue",
                  Schema.BYTES_SCHEMA, sm);
  
          ConnectRecord transformedCr = sourcePojoToSchemaAndStructTransform.apply(cr);
  
          assertEquals("testTopic", transformedCr.topic());
          assertEquals(Schema.STRING_SCHEMA, transformedCr.keySchema());
          assertEquals("testKeyValue", transformedCr.key());
          Schema transformedSchema = transformedCr.valueSchema();
          assertEquals(Schema.Type.STRUCT, transformedSchema.type());
          assertEquals(Schema.Type.ARRAY, transformedSchema.field("attachments").schema().type());
          assertEquals(Schema.STRING_SCHEMA.type(), transformedSchema.field("attachments").schema().valueSchema().field("title").schema().type());
  
          assertEquals(Struct.class, transformedCr.value().getClass());
          Struct transformedValue = (Struct)transformedCr.value();
          assertTrue(ArrayList.class.isAssignableFrom(transformedValue.get("attachments").getClass()));
          List actualAttachments = (ArrayList)transformedValue.get("attachments");
          assertEquals(2, actualAttachments.size());
          assertEquals(Struct.class, actualAttachments.get(0).getClass());
          atLeastOneFieldWithGivenValueExists(actualAttachments, "authorName", "Andrea");
          atLeastOneFieldWithGivenValueExists(actualAttachments, "color", "green");
      }
  
      @Test
      public void testMapValueConversion() {
          SourcePojoToSchemaAndStructTransform sourcePojoToSchemaAndStructTransform = new SourcePojoToSchemaAndStructTransform();
          sourcePojoToSchemaAndStructTransform.configure(Collections.emptyMap());
  
          PojoWithMap pwm = new PojoWithMap();
          pwm.addToMap("ciao", 9);
  
          ConnectRecord cr = new SourceRecord(null, null, "testTopic",
                  Schema.STRING_SCHEMA, "testKeyValue",
                  Schema.BYTES_SCHEMA, pwm);
  
          ConnectRecord transformedCr = sourcePojoToSchemaAndStructTransform.apply(cr);
  
          assertEquals("testTopic", transformedCr.topic());
          assertEquals(Schema.STRING_SCHEMA, transformedCr.keySchema());
          assertEquals("testKeyValue", transformedCr.key());
          Schema transformedSchema = transformedCr.valueSchema();
          assertEquals(Schema.Type.STRUCT, transformedSchema.type());
          assertEquals(Schema.Type.MAP, transformedSchema.field("map").schema().type());
  
          assertEquals(Struct.class, transformedCr.value().getClass());
          Struct transformedValue = (Struct)transformedCr.value();
          assertTrue(Map.class.isAssignableFrom(transformedValue.get("map").getClass()));
          assertTrue(((Map)transformedValue.get("map")).keySet().contains("ciao"));
          assertTrue(((Map)transformedValue.get("map")).values().contains(9));
      }
  
      @Test()
      public void testNotPojoConversion() {
          SourcePojoToSchemaAndStructTransform sourcePojoToSchemaAndStructTransform = new SourcePojoToSchemaAndStructTransform();
          sourcePojoToSchemaAndStructTransform.configure(Collections.emptyMap());
  
          Map map = Collections.singletonMap("ciao", 9);
  
          ConnectRecord cr = new SourceRecord(null, null, "testTopic",
                  Schema.STRING_SCHEMA, "testKeyValue",
                  Schema.BYTES_SCHEMA, map);
  
          assertThrows(ConnectException.class, () -> {
              sourcePojoToSchemaAndStructTransform.apply(cr);
          });
      }
  
      @Test()
      public void testNullValueConversion() {
          SourcePojoToSchemaAndStructTransform sourcePojoToSchemaAndStructTransform = new SourcePojoToSchemaAndStructTransform();
          sourcePojoToSchemaAndStructTransform.configure(Collections.emptyMap());
  
          ConnectRecord cr = new SourceRecord(null, null, "testTopic",
                  Schema.STRING_SCHEMA, "testKeyValue",
                  Schema.BYTES_SCHEMA, null);
  
          ConnectRecord transformedCr = sourcePojoToSchemaAndStructTransform.apply(cr);
          assertEquals(cr, transformedCr);
      }
  
      @Test()
      public void testConversionCache() {
          SourcePojoToSchemaAndStructTransform sourcePojoToSchemaAndStructTransform = new SourcePojoToSchemaAndStructTransform();
          sourcePojoToSchemaAndStructTransform.configure(Collections.emptyMap());
  
          PojoWithMap pwm = new PojoWithMap();
          pwm.addToMap("ciao", 9);
  
          ConnectRecord cr = new SourceRecord(null, null, "testTopic",
                  Schema.STRING_SCHEMA, "testKeyValue",
                  Schema.BYTES_SCHEMA, pwm);
  
          assertEquals(0, sourcePojoToSchemaAndStructTransform.getCache().keySet().size());
          sourcePojoToSchemaAndStructTransform.apply(cr);
          assertEquals(1, sourcePojoToSchemaAndStructTransform.getCache().keySet().size());
          ConnectRecord transformedCr = sourcePojoToSchemaAndStructTransform.apply(cr);
          assertEquals(1, sourcePojoToSchemaAndStructTransform.getCache().keySet().size());
          assertTrue(sourcePojoToSchemaAndStructTransform.getCache().keySet().contains(PojoWithMap.class.getName()));
      }
  
      private void atLeastOneFieldWithGivenValueExists(List structs, String fieldName, String fieldExpectedValue) {
          structs.stream().filter(
              struct -> ((Struct) struct).getString(fieldName) == null ? false : true
          ).forEach(
              struct -> assertEquals(fieldExpectedValue, ((Struct) struct).getString(fieldName))
          );
      }
  }
  