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.flink.connectors.kudu.table.dynamic;
  
  import org.apache.flink.connectors.kudu.connector.KuduTableInfo;
  import org.apache.flink.connectors.kudu.connector.writer.KuduWriterConfig;
  import org.apache.flink.connectors.kudu.connector.writer.RowDataUpsertOperationMapper;
  import org.apache.flink.connectors.kudu.streaming.KuduSink;
  import org.apache.flink.table.api.TableSchema;
  import org.apache.flink.table.connector.ChangelogMode;
  import org.apache.flink.table.connector.sink.DynamicTableSink;
  import org.apache.flink.table.connector.sink.SinkFunctionProvider;
  import org.apache.flink.table.data.RowData;
  import org.apache.flink.types.RowKind;
  import org.apache.flink.util.Preconditions;
  
  import java.util.Objects;
  
  /**
   * A {@link KuduDynamicTableSink} for Kudu.
   */
  public class KuduDynamicTableSink implements DynamicTableSink {
      private final KuduWriterConfig.Builder writerConfigBuilder;
      private final TableSchema flinkSchema;
      private final KuduTableInfo tableInfo;
  
      public KuduDynamicTableSink(KuduWriterConfig.Builder writerConfigBuilder, TableSchema flinkSchema,
                                  KuduTableInfo tableInfo) {
          this.writerConfigBuilder = writerConfigBuilder;
          this.flinkSchema = flinkSchema;
          this.tableInfo = tableInfo;
      }
  
      @Override
      public ChangelogMode getChangelogMode(ChangelogMode requestedMode) {
          this.validatePrimaryKey(requestedMode);
          return ChangelogMode.newBuilder().addContainedKind(RowKind.INSERT).addContainedKind(RowKind.DELETE).addContainedKind(RowKind.UPDATE_AFTER).build();
      }
  
      private void validatePrimaryKey(ChangelogMode requestedMode) {
          Preconditions.checkState(ChangelogMode.insertOnly().equals(requestedMode) || this.tableInfo.getSchema().getPrimaryKeyColumnCount() != 0, "please declare primary key for sink table when query contains update/delete record.");
      }
  
      @Override
      public SinkRuntimeProvider getSinkRuntimeProvider(Context context) {
          KuduSink<RowData> upsertKuduSink = new KuduSink<>(writerConfigBuilder.build(), tableInfo,
                  new RowDataUpsertOperationMapper(flinkSchema));
          return SinkFunctionProvider.of(upsertKuduSink);
      }
  
      @Override
      public DynamicTableSink copy() {
          return new KuduDynamicTableSink(this.writerConfigBuilder, this.flinkSchema, this.tableInfo);
      }
  
      @Override
      public String asSummaryString() {
          return "kudu";
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          KuduDynamicTableSink that = (KuduDynamicTableSink) o;
          return Objects.equals(writerConfigBuilder, that.writerConfigBuilder) && Objects.equals(flinkSchema,
                  that.flinkSchema) && Objects.equals(tableInfo, that.tableInfo);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(writerConfigBuilder, flinkSchema, tableInfo);
      }
  }
  