1 // Copyright 2012 Google Inc. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef POLO_PAIRING_MESSAGE_CONFIGURATIONMESSAGE_H_ 16 #define POLO_PAIRING_MESSAGE_CONFIGURATIONMESSAGE_H_ 17 18 #include <string> 19 #include "polo/encoding/encodingoption.h" 20 #include "polo/pairing/message/optionsmessage.h" 21 #include "polo/pairing/message/polomessage.h" 22 23 namespace polo { 24 namespace pairing { 25 namespace message { 26 27 // A message that contains Polo configuration options. 28 class ConfigurationMessage : public PoloMessage { 29 public: 30 // Creates a configuration message with the given encoding and role. 31 // @param encoding the configured encoding options 32 // @param client_role the client role 33 ConfigurationMessage(const encoding::EncodingOption &encoding, 34 OptionsMessage::ProtocolRole client_role); 35 36 // Gets the configured encoding options. 37 const ::polo::encoding::EncodingOption& encoding() const; 38 39 // Gets the client role. 40 OptionsMessage::ProtocolRole client_role() const; 41 42 // @override 43 virtual std::string ToString() const; 44 45 // Computes the best configuration given the local and peer options. This 46 // performs a negotiation of the local and peer options and selects the most 47 // complex common input and output encodings and a local role. 48 // @param local_options the local options 49 // @param peer_options the peer options 50 static ConfigurationMessage* GetBestConfiguration( 51 const OptionsMessage& local_options, 52 const OptionsMessage& peer_options); 53 54 private: 55 encoding::EncodingOption encoding_; 56 OptionsMessage::ProtocolRole client_role_; 57 58 DISALLOW_COPY_AND_ASSIGN(ConfigurationMessage); 59 }; 60 61 } // namespace message 62 } // namespace pairing 63 } // namespace polo 64 65 #endif // POLO_PAIRING_MESSAGE_CONFIGURATIONMESSAGE_H_ 66
