1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 */ 19 package org.apache.thrift; 20 21 import org.apache.thrift.async.AsyncMethodCallback; 22 import org.apache.thrift.protocol.TMessage; 23 import org.apache.thrift.protocol.TProtocol; 24 import org.apache.thrift.server.AbstractNonblockingServer; 25 26 public abstract class AsyncProcessFunction<I, T extends TBase, R> { 27 final String methodName; 28 AsyncProcessFunction(String methodName)29 public AsyncProcessFunction(String methodName) { 30 this.methodName = methodName; 31 } 32 isOneway()33 protected abstract boolean isOneway(); 34 start(I iface, T args, AsyncMethodCallback<R> resultHandler)35 public abstract void start(I iface, T args, AsyncMethodCallback<R> resultHandler) 36 throws TException; 37 getEmptyArgsInstance()38 public abstract T getEmptyArgsInstance(); 39 getResultHandler( final AbstractNonblockingServer.AsyncFrameBuffer fb, int seqid)40 public abstract AsyncMethodCallback<R> getResultHandler( 41 final AbstractNonblockingServer.AsyncFrameBuffer fb, int seqid); 42 getMethodName()43 public String getMethodName() { 44 return methodName; 45 } 46 sendResponse( final AbstractNonblockingServer.AsyncFrameBuffer fb, final TSerializable result, final byte type, final int seqid)47 public void sendResponse( 48 final AbstractNonblockingServer.AsyncFrameBuffer fb, 49 final TSerializable result, 50 final byte type, 51 final int seqid) 52 throws TException { 53 TProtocol oprot = fb.getOutputProtocol(); 54 55 oprot.writeMessageBegin(new TMessage(getMethodName(), type, seqid)); 56 result.write(oprot); 57 oprot.writeMessageEnd(); 58 oprot.getTransport().flush(); 59 60 fb.responseReady(); 61 } 62 } 63