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Teko_RequestHandler_impl.hpp
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00006 //      Teko: A package for block and physics based preconditioning
00007 //                  Copyright 2010 Sandia Corporation 
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00045 */
00046 
00047 #ifndef __Teko_RequestHandler_impl_hpp__
00048 #define __Teko_RequestHandler_impl_hpp__
00049 
00050 template <typename DataT>
00051 DataT RequestHandler::request(const RequestMesg & rd) const
00052 {
00053    using Teuchos::RCP;
00054    using Teuchos::rcp_dynamic_cast;
00055 
00056    // type of call back to use
00057    typedef RequestCallback<DataT> CallbackT;
00058 
00059    // distribute message over all callbacks
00060    std::vector<RCP<RequestCallbackBase> >::iterator itr;
00061    for(itr=callbacks_.begin();itr!=callbacks_.end();++itr) {
00062       RCP<CallbackT> cb = rcp_dynamic_cast<CallbackT>(*itr);
00063 
00064       // call back not right type
00065       if(cb==Teuchos::null)
00066          continue;
00067 
00068       // does call back handle this request?
00069       if(cb->handlesRequest(rd)) 
00070          return cb->request(rd);
00071    }
00072 
00073    TEST_FOR_EXCEPTION(true,std::runtime_error,
00074          "RequestHandler::request could not find appropriate callback: " << rd);
00075 }
00076 
00077 template <typename DataT>
00078 void RequestHandler::preRequest(const RequestMesg & rd) const
00079 {
00080    using Teuchos::RCP;
00081    using Teuchos::rcp_dynamic_cast;
00082 
00083    // type of call back to use
00084    typedef RequestCallback<DataT> CallbackT;
00085 
00086    // distribute message over all callbacks
00087    std::vector<RCP<RequestCallbackBase> >::iterator itr;
00088    for(itr=callbacks_.begin();itr!=callbacks_.end();++itr) {
00089       RCP<CallbackT> cb = rcp_dynamic_cast<CallbackT>(*itr);
00090 
00091       // call back not right type
00092       if(cb==Teuchos::null)
00093          continue;
00094 
00095       // does call back handle this request?
00096       if(cb->handlesRequest(rd)) 
00097          return cb->preRequest(rd);
00098    }
00099 
00100    TEST_FOR_EXCEPTION(true,std::runtime_error,
00101          "RequestHandler::preRequest could not find appropriate callback: " << rd);
00102 }
00103 
00104 #endif
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