00001 #ifndef QPID_MESSAGING_VARIANT_H
00002 #define QPID_MESSAGING_VARIANT_H
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00024 #include <list>
00025 #include <map>
00026 #include <ostream>
00027 #include <string>
00028 #include "qpid/Exception.h"
00029 #include "qpid/sys/IntegerTypes.h"
00030 #include "qpid/client/ClientImportExport.h"
00031
00032 namespace qpid {
00033 namespace messaging {
00034
00038 struct InvalidConversion : public qpid::Exception
00039 {
00040 InvalidConversion(const std::string& msg);
00041 };
00042
00043 enum VariantType {
00044 VAR_VOID = 0,
00045 VAR_BOOL,
00046 VAR_UINT8,
00047 VAR_UINT16,
00048 VAR_UINT32,
00049 VAR_UINT64,
00050 VAR_INT8,
00051 VAR_INT16,
00052 VAR_INT32,
00053 VAR_INT64,
00054 VAR_FLOAT,
00055 VAR_DOUBLE,
00056 VAR_STRING,
00057 VAR_MAP,
00058 VAR_LIST
00059 };
00060
00061 class VariantImpl;
00062
00066 class Variant
00067 {
00068 public:
00069 typedef std::map<std::string, Variant> Map;
00070 typedef std::list<Variant> List;
00071
00072 QPID_CLIENT_EXTERN Variant();
00073 QPID_CLIENT_EXTERN Variant(bool);
00074 QPID_CLIENT_EXTERN Variant(uint8_t);
00075 QPID_CLIENT_EXTERN Variant(uint16_t);
00076 QPID_CLIENT_EXTERN Variant(uint32_t);
00077 QPID_CLIENT_EXTERN Variant(uint64_t);
00078 QPID_CLIENT_EXTERN Variant(int8_t);
00079 QPID_CLIENT_EXTERN Variant(int16_t);
00080 QPID_CLIENT_EXTERN Variant(int32_t);
00081 QPID_CLIENT_EXTERN Variant(int64_t);
00082 QPID_CLIENT_EXTERN Variant(float);
00083 QPID_CLIENT_EXTERN Variant(double);
00084 QPID_CLIENT_EXTERN Variant(const std::string&);
00085 QPID_CLIENT_EXTERN Variant(const char*);
00086 QPID_CLIENT_EXTERN Variant(const Map&);
00087 QPID_CLIENT_EXTERN Variant(const List&);
00088 QPID_CLIENT_EXTERN Variant(const Variant&);
00089
00090 QPID_CLIENT_EXTERN ~Variant();
00091
00092 QPID_CLIENT_EXTERN VariantType getType() const;
00093 QPID_CLIENT_EXTERN bool isVoid() const;
00094
00095 QPID_CLIENT_EXTERN Variant& operator=(bool);
00096 QPID_CLIENT_EXTERN Variant& operator=(uint8_t);
00097 QPID_CLIENT_EXTERN Variant& operator=(uint16_t);
00098 QPID_CLIENT_EXTERN Variant& operator=(uint32_t);
00099 QPID_CLIENT_EXTERN Variant& operator=(uint64_t);
00100 QPID_CLIENT_EXTERN Variant& operator=(int8_t);
00101 QPID_CLIENT_EXTERN Variant& operator=(int16_t);
00102 QPID_CLIENT_EXTERN Variant& operator=(int32_t);
00103 QPID_CLIENT_EXTERN Variant& operator=(int64_t);
00104 QPID_CLIENT_EXTERN Variant& operator=(float);
00105 QPID_CLIENT_EXTERN Variant& operator=(double);
00106 QPID_CLIENT_EXTERN Variant& operator=(const std::string&);
00107 QPID_CLIENT_EXTERN Variant& operator=(const char*);
00108 QPID_CLIENT_EXTERN Variant& operator=(const Map&);
00109 QPID_CLIENT_EXTERN Variant& operator=(const List&);
00110 QPID_CLIENT_EXTERN Variant& operator=(const Variant&);
00111
00112 QPID_CLIENT_EXTERN bool asBool() const;
00113 QPID_CLIENT_EXTERN uint8_t asUint8() const;
00114 QPID_CLIENT_EXTERN uint16_t asUint16() const;
00115 QPID_CLIENT_EXTERN uint32_t asUint32() const;
00116 QPID_CLIENT_EXTERN uint64_t asUint64() const;
00117 QPID_CLIENT_EXTERN int8_t asInt8() const;
00118 QPID_CLIENT_EXTERN int16_t asInt16() const;
00119 QPID_CLIENT_EXTERN int32_t asInt32() const;
00120 QPID_CLIENT_EXTERN int64_t asInt64() const;
00121 QPID_CLIENT_EXTERN float asFloat() const;
00122 QPID_CLIENT_EXTERN double asDouble() const;
00123 QPID_CLIENT_EXTERN std::string asString() const;
00124
00125 QPID_CLIENT_EXTERN operator bool() const;
00126 QPID_CLIENT_EXTERN operator uint8_t() const;
00127 QPID_CLIENT_EXTERN operator uint16_t() const;
00128 QPID_CLIENT_EXTERN operator uint32_t() const;
00129 QPID_CLIENT_EXTERN operator uint64_t() const;
00130 QPID_CLIENT_EXTERN operator int8_t() const;
00131 QPID_CLIENT_EXTERN operator int16_t() const;
00132 QPID_CLIENT_EXTERN operator int32_t() const;
00133 QPID_CLIENT_EXTERN operator int64_t() const;
00134 QPID_CLIENT_EXTERN operator float() const;
00135 QPID_CLIENT_EXTERN operator double() const;
00136 QPID_CLIENT_EXTERN operator const char*() const;
00137
00138 QPID_CLIENT_EXTERN const Map& asMap() const;
00139 QPID_CLIENT_EXTERN Map& asMap();
00140 QPID_CLIENT_EXTERN const List& asList() const;
00141 QPID_CLIENT_EXTERN List& asList();
00146 QPID_CLIENT_EXTERN const std::string& getString() const;
00147 QPID_CLIENT_EXTERN std::string& getString();
00148
00149 QPID_CLIENT_EXTERN void setEncoding(const std::string&);
00150 QPID_CLIENT_EXTERN const std::string& getEncoding() const;
00151
00152 QPID_CLIENT_EXTERN bool isEqualTo(const Variant& a) const;
00153
00154 QPID_CLIENT_EXTERN void reset();
00155 private:
00156 VariantImpl* impl;
00157 };
00158
00159 QPID_CLIENT_EXTERN std::ostream& operator<<(std::ostream& out, const Variant& value);
00160 QPID_CLIENT_EXTERN std::ostream& operator<<(std::ostream& out, const Variant::Map& map);
00161 QPID_CLIENT_EXTERN std::ostream& operator<<(std::ostream& out, const Variant::List& list);
00162 QPID_CLIENT_EXTERN bool operator==(const Variant& a, const Variant& b);
00163
00164 typedef Variant::Map VariantMap;
00165
00166 }}
00167
00168 #endif