00001 #ifndef OMG_DDS_TOPIC_ANY_TOPIC_HPP_ 00002 #define OMG_DDS_TOPIC_ANY_TOPIC_HPP_ 00003 00004 /* Copyright 2010, Object Management Group, Inc. 00005 * Copyright 2010, PrismTech, Corp. 00006 * Copyright 2010, Real-Time Innovations, Inc. 00007 * All rights reserved. 00008 * 00009 * Licensed under the Apache License, Version 2.0 (the "License"); 00010 * you may not use this file except in compliance with the License. 00011 * You may obtain a copy of the License at 00012 * 00013 * http://www.apache.org/licenses/LICENSE-2.0 00014 * 00015 * Unless required by applicable law or agreed to in writing, software 00016 * distributed under the License is distributed on an "AS IS" BASIS, 00017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00018 * See the License for the specific language governing permissions and 00019 * limitations under the License. 00020 */ 00021 00022 #include <dds/core/Exception.hpp> 00023 #include <dds/topic/topicfwd.hpp> 00024 #include <dds/topic/detail/AnyTopic.hpp> 00025 #include <dds/topic/AnyTopicDescription.hpp> 00026 00027 namespace dds { namespace topic { 00028 00029 class AnyTopic : public AnyTopicDescription { 00030 public: 00031 template <typename T> 00032 inline AnyTopic(const T& t) 00033 : AnyTopicDescription(new detail::THolder<T>(t)) { } 00034 00035 inline const detail::THolderBase* operator->() const { 00036 return dynamic_cast<detail::THolderBase*>(holder_); 00037 } 00038 00039 detail::THolderBase* operator->() { 00040 return dynamic_cast<detail::THolderBase*>(holder_); 00041 } 00042 ~AnyTopic(); 00043 public: 00044 template <typename T> 00045 const T& get() { 00046 detail::THolder<T>* h = dynamic_cast<detail::THolder<T>* >(holder_); 00047 if (h == 0) { 00048 throw dds::core::InvalidDowncastError("invalid type"); 00049 } 00050 return h->get(); 00051 } 00052 }; 00053 00054 }} 00055 00056 #endif /* OMG_DDS_TOPIC_ANY_TOPIC_HPP_ */
1.7.1