| /* |
| * 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.thrift; |
| |
| import org.apache.thrift.protocol.*; |
| import org.apache.thrift.async.AsyncMethodCallback; |
| |
| import org.apache.thrift.server.AbstractNonblockingServer.*; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| |
| public class TBaseAsyncProcessor<I> implements TAsyncProcessor, TProcessor { |
| protected final Logger LOGGER = LoggerFactory.getLogger(getClass().getName()); |
| |
| final I iface; |
| final Map<String,AsyncProcessFunction<I, ? extends TBase,?>> processMap; |
| |
| public TBaseAsyncProcessor(I iface, Map<String, AsyncProcessFunction<I, ? extends TBase,?>> processMap) { |
| this.iface = iface; |
| this.processMap = processMap; |
| } |
| |
| public Map<String,AsyncProcessFunction<I, ? extends TBase,?>> getProcessMapView() { |
| return Collections.unmodifiableMap(processMap); |
| } |
| |
| public void process(final AsyncFrameBuffer fb) throws TException { |
| |
| final TProtocol in = fb.getInputProtocol(); |
| final TProtocol out = fb.getOutputProtocol(); |
| |
| //Find processing function |
| final TMessage msg = in.readMessageBegin(); |
| AsyncProcessFunction fn = processMap.get(msg.name); |
| if (fn == null) { |
| TProtocolUtil.skip(in, TType.STRUCT); |
| in.readMessageEnd(); |
| |
| TApplicationException x = new TApplicationException(TApplicationException.UNKNOWN_METHOD, |
| "Invalid method name: '" + msg.name + "'"); |
| LOGGER.debug("Invalid method name", x); |
| |
| // this means it is a two-way request, so we can send a reply |
| if (msg.type == TMessageType.CALL) { |
| out.writeMessageBegin(new TMessage(msg.name, TMessageType.EXCEPTION, msg.seqid)); |
| x.write(out); |
| out.writeMessageEnd(); |
| out.getTransport().flush(); |
| } |
| fb.responseReady(); |
| return; |
| } |
| |
| //Get Args |
| TBase args = fn.getEmptyArgsInstance(); |
| |
| try { |
| args.read(in); |
| } catch (TProtocolException e) { |
| in.readMessageEnd(); |
| |
| TApplicationException x = new TApplicationException(TApplicationException.PROTOCOL_ERROR, |
| e.getMessage()); |
| LOGGER.debug("Could not retrieve function arguments", x); |
| |
| if (!fn.isOneway()) { |
| out.writeMessageBegin(new TMessage(msg.name, TMessageType.EXCEPTION, msg.seqid)); |
| x.write(out); |
| out.writeMessageEnd(); |
| out.getTransport().flush(); |
| } |
| fb.responseReady(); |
| return; |
| } |
| in.readMessageEnd(); |
| |
| if (fn.isOneway()) { |
| fb.responseReady(); |
| } |
| |
| //start off processing function |
| AsyncMethodCallback resultHandler = fn.getResultHandler(fb, msg.seqid); |
| try { |
| fn.start(iface, args, resultHandler); |
| } catch (Exception e) { |
| LOGGER.debug("Exception handling function", e); |
| resultHandler.onError(e); |
| } |
| return; |
| } |
| |
| @Override |
| public void process(TProtocol in, TProtocol out) throws TException { |
| } |
| } |