| /** |
| * 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.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.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 { |
| public GenericRequestor(Protocol protocol, Transceiver transceiver) |
| throws IOException { |
| super(protocol, transceiver); |
| } |
| |
| @Override |
| public Object request(String messageName, Object request) |
| throws IOException { |
| try { |
| return super.request(messageName, request); |
| } catch (Exception e) { |
| if (e instanceof RuntimeException) |
| throw (RuntimeException)e; |
| if (e instanceof IOException) |
| throw (IOException)e; |
| throw new AvroRemoteException(e); |
| } |
| } |
| |
| @Override |
| public void writeRequest(Schema schema, Object request, Encoder out) |
| throws IOException { |
| new GenericDatumWriter<Object>(schema).write(request, out); |
| } |
| |
| @Override |
| public Object readResponse(Schema schema, Decoder in) throws IOException { |
| return new GenericDatumReader<Object>(schema).read(null, in); |
| } |
| |
| @Override |
| public Exception readError(Schema schema, Decoder in) |
| throws IOException { |
| Object error = new GenericDatumReader<Object>(schema).read(null,in); |
| if (error instanceof CharSequence) |
| return new AvroRuntimeException(error.toString()); // system error |
| return new AvroRemoteException(error); |
| } |
| |
| } |
| |