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00021 #ifndef _StructHelper_
00022 #define _StructHelper_
00023 
00024 #include "qpid/Exception.h"
00025 #include "qpid/CommonImportExport.h"
00026 #include "qpid/framing/Buffer.h"
00027 
00028 #include <stdlib.h> 
00029 
00030 namespace qpid {
00031 namespace framing {
00032 
00033 class QPID_COMMON_CLASS_EXTERN StructHelper
00034 {
00035 public:
00036 
00037     template <class T> void encode(const T t, std::string& data) {
00038         uint32_t size = t.bodySize() + 2;
00039         data.resize(size);
00040         Buffer wbuffer(const_cast<char*>(data.data()), size);
00041         wbuffer.putShort(T::TYPE);
00042         t.encodeStructBody(wbuffer);
00043     }
00044 
00045     template <class T> void decode(T& t, const std::string& data) {
00046         Buffer rbuffer(const_cast<char*>(data.data()), data.length());
00047         uint16_t type = rbuffer.getShort();
00048         if (type == T::TYPE) {
00049             t.decodeStructBody(rbuffer);
00050         } else {
00051             throw Exception("Type code does not match");
00052         }
00053     }
00054 };
00055 
00056 }}
00057 #endif