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
   *
   *     https://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.avro.ipc.generic;
  
  import java.io.IOException;
  
  import org.apache.avro.AvroRemoteException;
  import org.apache.avro.Protocol;
  import org.apache.avro.Schema;
  import org.apache.avro.AvroRuntimeException;
  import org.apache.avro.generic.GenericData;
  import org.apache.avro.generic.GenericDatumReader;
  import org.apache.avro.generic.GenericDatumWriter;
  import org.apache.avro.io.Decoder;
  import org.apache.avro.io.Encoder;
  import org.apache.avro.ipc.Requestor;
  import org.apache.avro.ipc.Transceiver;
  
  /** {@link Requestor} implementation for generic Java data. */
  public class GenericRequestor extends Requestor {
    GenericData data;
  
    public GenericRequestor(Protocol protocol, Transceiver transceiver) throws IOException {
      this(protocol, transceiver, GenericData.get());
    }
  
    public GenericRequestor(Protocol protocol, Transceiver transceiver, GenericData data) throws IOException {
      super(protocol, transceiver);
      this.data = data;
    }
  
    public GenericData getGenericData() {
      return data;
    }
  
    @Override
    public void writeRequest(Schema schema, Object request, Encoder out) throws IOException {
      new GenericDatumWriter<>(schema, data).write(request, out);
    }
  
    @Override
    public Object readResponse(Schema writer, Schema reader, Decoder in) throws IOException {
      return new GenericDatumReader<>(writer, reader, data).read(null, in);
    }
  
    @Override
    public Exception readError(Schema writer, Schema reader, Decoder in) throws IOException {
      Object error = new GenericDatumReader<>(writer, reader, data).read(null, in);
      if (error instanceof CharSequence)
        return new AvroRuntimeException(error.toString()); // system error
      return new AvroRemoteException(error);
    }
  
  }
  