GDCM  2.2.0
gdcmULConnection.h
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00001 /*=========================================================================
00002  *
00003  *  Copyright Insight Software Consortium
00004  *
00005  *  Licensed under the Apache License, Version 2.0 (the "License");
00006  *  you may not use this file except in compliance with the License.
00007  *  You may obtain a copy of the License at
00008  *
00009  *         http://www.apache.org/licenses/LICENSE-2.0.txt
00010  *
00011  *  Unless required by applicable law or agreed to in writing, software
00012  *  distributed under the License is distributed on an "AS IS" BASIS,
00013  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  *  See the License for the specific language governing permissions and
00015  *  limitations under the License.
00016  *
00017  *=========================================================================*/
00018 #ifndef GDCMULCONNECTION_H
00019 #define GDCMULCONNECTION_H
00020 
00021 #include "gdcmNetworkStateID.h"
00022 #include "gdcmARTIMTimer.h"
00023 #include "gdcmULConnectionInfo.h"
00024 #include "gdcmPresentationContextRQ.h"
00025 #include "gdcmDataElement.h"
00026 #include "gdcmPresentationContextAC.h"
00027 #include "gdcmPresentationContext.h"
00028 
00029 #include "gdcmScanner.h" // FIXME
00030 
00031 class iosockinet;
00032 class echo;
00033 namespace gdcm{
00034   namespace network{
00035 
00059 class ULConnection
00060 {
00061       ULConnectionInfo mInfo;
00062       //this is a dirty dirty hack
00063       //but to establish an outgoing connection (scu), we need the echo service
00064       //to establish incoming, we just need a port and localhost, so an iosockinet works while an
00065       //echo would fail (probably because one already exists)
00066       echo* mEcho;
00067       iosockinet* mSocket;//of the three protocols offered by socket++-- echo, smtp, and ftp--
00068       //echo most closely matches what the DICOM standard describes as a network connection
00069       ARTIMTimer mTimer;
00070 
00071       ULConnection(ULConnection& inConnection); //no copy construction allowed
00072 
00073       EStateID mCurrentState;
00074 
00075       std::vector<PresentationContextRQ> mPresentationContexts;
00076       //this is our list of presentation contexts of what we can send
00077       uint32_t mMaxPDUSize;
00078 
00079       std::vector<PresentationContextAC> mAcceptedPresentationContexts;//these come back from the server
00080       //and tell us what can be sent over this connection
00081 
00082     public:
00083 
00084       ULConnection(const ULConnectionInfo& inUserInformation);
00085       //destructors are virtual to prevent memory leaks by inherited classes
00086       virtual ~ULConnection();
00087 
00088       EStateID GetState() const;
00089       void SetState(const EStateID& inState);//must be able to update state...
00090 
00091       //echo* GetProtocol();
00092       std::iostream* GetProtocol();
00093       void StopProtocol();
00094 
00095       ARTIMTimer& GetTimer();
00096 
00097       const ULConnectionInfo &GetConnectionInfo() const;
00098 
00099       //when the connection is first associated, the connection is told
00100       //the max packet/PDU size and the way in which to present data
00101       //(presentation contexts, etc). Store that here.
00102       void SetMaxPDUSize(uint32_t inSize);
00103       uint32_t GetMaxPDUSize() const;
00104 
00105       const PresentationContextAC *GetPresentationContextACByID(uint8_t id) const;
00106       const PresentationContextRQ *GetPresentationContextRQByID(uint8_t id) const;
00107 
00109       uint8_t GetPresentationContextIDFromPresentationContext(PresentationContextRQ const & pc) const;
00110 
00111       std::vector<PresentationContextRQ> const & GetPresentationContexts() const;
00112       void SetPresentationContexts(const std::vector<PresentationContextRQ>& inContexts);
00113 
00114       void SetPresentationContexts(const std::vector<PresentationContext>& inContexts);
00115 
00116       //given a particular data element, presumably the SOP class,
00117       //find the presentation context for that SOP
00118       //NOT YET IMPLEMENTED
00119       PresentationContextRQ FindContext(const DataElement& de) const;
00120 
00121       std::vector<PresentationContextAC> const & GetAcceptedPresentationContexts() const;
00122       std::vector<PresentationContextAC> & GetAcceptedPresentationContexts();
00123       void AddAcceptedPresentationContext(const PresentationContextAC& inPC);
00124 
00126       bool InitializeConnection();
00127 
00129       bool InitializeIncomingConnection();
00130     };
00131   }
00132 }
00133 
00134 #endif // ULCONNECTION_H

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