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.flink;
  
  import org.apache.camel.Category;
  import org.apache.camel.Consumer;
  import org.apache.camel.Processor;
  import org.apache.camel.Producer;
  import org.apache.camel.spi.Metadata;
  import org.apache.camel.spi.UriEndpoint;
  import org.apache.camel.spi.UriParam;
  import org.apache.camel.spi.UriPath;
  import org.apache.camel.support.DefaultEndpoint;
  import org.apache.flink.api.java.DataSet;
  import org.apache.flink.streaming.api.datastream.DataStream;
  
  /**
   * Send DataSet jobs to an Apache Flink cluster.
   */
  @UriEndpoint(firstVersion = "2.18.0", scheme = "flink", title = "Flink", syntax = "flink:endpointType", producerOnly = true,
               category = { Category.TRANSFORMATION, Category.BIGDATA }, headersClass = FlinkConstants.class)
  public class FlinkEndpoint extends DefaultEndpoint {
  
      @UriPath
      @Metadata(required = true)
      private EndpointType endpointType;
      @UriParam
      private DataSet dataSet;
      @UriParam
      private DataSetCallback dataSetCallback;
      @UriParam
      private DataStream dataStream;
      @UriParam
      private DataStreamCallback dataStreamCallback;
      @UriParam(defaultValue = "true")
      private boolean collect = true;
  
      public FlinkEndpoint(String endpointUri, FlinkComponent component, EndpointType endpointType) {
          super(endpointUri, component);
          this.endpointType = endpointType;
      }
  
      @Override
      protected void doInit() throws Exception {
          super.doInit();
  
          if (dataSet == null) {
              dataSet = getComponent().getDataSet();
          }
  
          if (dataSetCallback == null) {
              dataSetCallback = getComponent().getDataSetCallback();
          }
      }
  
      @Override
      public Producer createProducer() throws Exception {
          if (endpointType == EndpointType.dataset) {
              return new DataSetFlinkProducer(this);
          } else if (endpointType == EndpointType.datastream) {
              return new DataStreamFlinkProducer(this);
          } else {
              return null;
          }
      }
  
      @Override
      public Consumer createConsumer(Processor processor) throws Exception {
          throw new UnsupportedOperationException("Flink Component supports producer endpoints only.");
      }
  
      @Override
      public FlinkComponent getComponent() {
          return (FlinkComponent) super.getComponent();
      }
  
      /**
       * Type of the endpoint (dataset, datastream).
       */
      public void setEndpointType(EndpointType endpointType) {
          this.endpointType = endpointType;
      }
  
      public DataSet getDataSet() {
          return dataSet;
      }
  
      public DataStream getDataStream() {
          return dataStream;
      }
  
      /**
       * DataSet to compute against.
       */
      public void setDataSet(DataSet ds) {
          this.dataSet = ds;
      }
  
      /**
       * DataStream to compute against.
       */
      public void setDataStream(DataStream ds) {
          this.dataStream = ds;
      }
  
      public DataSetCallback getDataSetCallback() {
          return dataSetCallback;
      }
  
      public DataStreamCallback getDataStreamCallback() {
          return dataStreamCallback;
      }
  
      /**
       * Function performing action against a DataSet.
       */
      public void setDataSetCallback(DataSetCallback dataSetCallback) {
          this.dataSetCallback = dataSetCallback;
      }
  
      /**
       * Function performing action against a DataStream.
       */
      public void setDataStreamCallback(DataStreamCallback dataStreamCallback) {
          this.dataStreamCallback = dataStreamCallback;
      }
  
      public boolean isCollect() {
          return collect;
      }
  
      /**
       * Indicates if results should be collected or counted.
       */
      public void setCollect(boolean collect) {
          this.collect = collect;
      }
  }
  