2 * Copyright 2015 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <folly/wangle/channel/Handler.h>
21 namespace folly { namespace wangle {
24 * StringCodec converts a pipeline from IOBufs to std::strings.
26 class StringCodec : public Handler<std::unique_ptr<IOBuf>, std::string,
27 std::string, std::unique_ptr<IOBuf>> {
29 typedef typename Handler<
30 std::unique_ptr<IOBuf>, std::string,
31 std::string, std::unique_ptr<IOBuf>>::Context Context;
33 void read(Context* ctx, std::unique_ptr<IOBuf> buf) override {
35 std::string data((const char*)buf->data(), buf->length());
40 Future<void> write(Context* ctx, std::string msg) override {
41 auto buf = IOBuf::copyBuffer(msg.data(), msg.length());
42 return ctx->fireWrite(std::move(buf));