00001 #ifndef CASTOR_ENCODING_H
00002 #define CASTOR_ENCODING_H 1
00003
00004 #include <endian.h>
00005
00006 #include <vector>
00007
00008 #include "NetAddress.h"
00009 #include "Types.h"
00010
00011 namespace castor {
00012
00013
00014
00015 typedef enum { endian_undefined = -1, endian_little = 0, endian_big = 1 } Endianness;
00016
00017 class Encoder;
00018 typedef boost::shared_ptr<Encoder> EncoderPtr;
00019
00020 class Decoder;
00021 typedef boost::shared_ptr<Decoder> DecoderPtr;
00022
00023 template <class T>
00024 class Encoding {
00025
00026 protected:
00027
00028 Encoding() {
00029 }
00030
00031 public:
00032
00033 static EncoderPtr createEncoder() {
00034 return EncoderPtr(new T);
00035 }
00036
00037 static DecoderPtr createDecoder(const BytesPtr data, size_t offset = 0) {
00038 return DecoderPtr(new T(data, offset));
00039 }
00040
00041 static DecoderPtr createDecoder(const char *data, size_t length) {
00042 return DecoderPtr(new T(data, length));
00043 }
00044
00045 static DecoderPtr createDecoder(const char *data, size_t offset, size_t length) {
00046 return DecoderPtr(new T(data, offset, length));
00047 }
00048
00049 };
00050
00051 Endianness endianness();
00052
00053 class Encoder {
00054
00055 protected:
00056
00057 EncoderPtr next;
00058
00059 public:
00060
00061 Encoder() : next() {
00062 }
00063
00064 virtual ~Encoder() {
00065 }
00066
00067 virtual EncoderPtr createEncoder() = 0;
00068
00069 virtual DecoderPtr createDecoder(const BytesPtr x, size_t offset = 0) = 0;
00070 virtual DecoderPtr createDecoder(const char *x, size_t length) = 0;
00071 virtual DecoderPtr createDecoder(const char *x, size_t offset, size_t length) = 0;
00072
00073 void setNext(EncoderPtr value) {
00074 this->next = value;
00075 }
00076
00077 EncoderPtr getNext() {
00078 return this->next;
00079 }
00080
00081 virtual void switchEndianness(bool yes) = 0;
00082
00083 virtual const char *getBuffer() = 0;
00084
00085 virtual size_t getLength() = 0;
00086 virtual size_t getPosition() = 0;
00087
00088 virtual BytesPtr getBytes() = 0;
00089
00090 virtual void mark() = 0;
00091 virtual void commit() = 0;
00092 virtual void rollback() = 0;
00093 virtual void reset() = 0;
00094
00095 virtual void seek(long offset) = 0;
00096 virtual void encLength(size_t x) = 0;
00097 virtual void encBool(bool x) = 0;
00098 virtual void encInt8(char x) = 0;
00099 virtual void encUInt8(unsigned char x) = 0;
00100 virtual void encInt16(short x) = 0;
00101 virtual void encUInt16(unsigned short x) = 0;
00102 virtual void encInt32(long x) = 0;
00103 virtual void encUInt32(unsigned long x) = 0;
00104 virtual void encInt64(long long x) = 0;
00105 virtual void encUInt64(unsigned long long x) = 0;
00106 virtual void encFloat(float x) = 0;
00107 virtual void encDouble(double x) = 0;
00108 virtual void encString(const std::string x) = 0;
00109 virtual void encAddress(const castor::net::NetAddress &x) = 0;
00110 virtual void encBytes(const Bytes &x) = 0;
00111 virtual void encBytes(const Bytes &x, size_t offset, size_t length) = 0;
00112 virtual void encBytes(const char *x, size_t length) = 0;
00113 virtual void encBytes(const char *x, size_t offset, size_t length) = 0;
00114 };
00115
00116 class Decoder {
00117
00118 public:
00119
00120 Decoder() {
00121 }
00122
00123 Decoder(const BytesPtr x, size_t offset = 0);
00124 Decoder(const char *x, size_t length);
00125 Decoder(const char *x, size_t offset, size_t length);
00126
00127 virtual ~Decoder() {
00128 }
00129
00130 virtual EncoderPtr createEncoder() = 0;
00131
00132 virtual DecoderPtr createDecoder(const BytesPtr x, size_t offset = 0) = 0;
00133 virtual DecoderPtr createDecoder(const char *x, size_t length) = 0;
00134 virtual DecoderPtr createDecoder(const char *x, size_t offset, size_t length) = 0;
00135
00136 virtual void switchEndianness(bool yes) = 0;
00137
00138 virtual const char *getBuffer() = 0;
00139
00140 virtual size_t getLength() = 0;
00141 virtual size_t getPosition() = 0;
00142
00143 virtual BytesPtr getBytes() = 0;
00144
00145 virtual void mark() = 0;
00146 virtual void commit() = 0;
00147 virtual void rollback() = 0;
00148 virtual void reset() = 0;
00149
00150 virtual void seek(long offset) = 0;
00151
00152 virtual size_t decLength() = 0;
00153 virtual bool decBool() = 0;
00154 virtual char decInt8() = 0;
00155 virtual unsigned char decUInt8() = 0;
00156 virtual short decInt16() = 0;
00157 virtual unsigned short decUInt16() = 0;
00158 virtual long decInt32() = 0;
00159 virtual unsigned long decUInt32() = 0;
00160 virtual long long decInt64() = 0;
00161 virtual unsigned long long decUInt64() = 0;
00162 virtual float decFloat() = 0;
00163 virtual double decDouble() = 0;
00164 virtual std::string decString() = 0;
00165 virtual castor::net::NetAddress decAddress() = 0;
00166 virtual BytesPtr decBytes(size_t length) = 0;
00167
00168 };
00169
00170
00171 }
00172
00173 #endif
00174
