--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/include/DataTypeWriter.h Sat Jul 14 16:58:33 2018 +0200
@@ -0,0 +1,31 @@
+#pragma once
+
+#include "DataTypeWriterBase.h"
+
+namespace relpipe {
+namespace writer {
+
+template<typename T> class DataTypeWriter : public DataTypeWriterBase {
+public:
+
+ DataTypeWriter(const integer_t typeId, const string_t typeCode) : DataTypeWriterBase(typeId, typeCode) {
+ }
+
+ virtual ~DataTypeWriter() {
+ };
+
+ virtual T readValue(std::istream& input) = 0;
+
+ virtual string_t readString(std::istream &input);
+
+ virtual void writeValue(std::ostream& output, const T& value) = 0;
+
+ virtual void writeString(std::ostream& output, const string_t &stringValue);
+
+ virtual T toValue(const string_t &stringValue) = 0;
+ virtual string_t toString(const T& value) = 0;
+
+};
+
+}
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/include/DataTypeWriterBase.h Sat Jul 14 16:58:33 2018 +0200
@@ -0,0 +1,61 @@
+#pragma once
+
+#include <string>
+#include "typedefs.h"
+
+namespace relpipe {
+namespace writer {
+
+/**
+ * This class contains common features that are independent from particular data type (generic/template type)
+ */
+class DataTypeWriterBase {
+private:
+ const integer_t typeId;
+ const string_t typeCode;
+public:
+
+ DataTypeWriterBase(const integer_t typeId, const string_t typeCode) :
+ typeId(typeId), typeCode(typeCode) {
+ }
+
+ virtual ~DataTypeWriterBase() {
+ };
+
+ /**
+ * @param input input stream, should be at position where the value is to be read; the stream will not be closed afred reading
+ * @return read value in form of the string representation of given data type.
+ * E.g. integer 123 is returned as a character string "123",
+ * boolean true is returned as a character string "true".
+ * See Relational pipes format specification for details.
+ */
+ virtual string_t readString(std::istream &input) = 0;
+
+ /**
+ * @param output output stream, should be at position where the value is to be written; the stream will not be closed not flushed after writing
+ * @param stringValue write value as given data type (e.g. integer or boolean); stringValue parameter contains given value in string representation of given data type
+ * E.g. integer 123 is passed as a character string "123"
+ * boolean true is passed as a character string "true".
+ * See Relational pipes format specification for details.
+ */
+ virtual void writeString(std::ostream& output, const string_t &stringValue) = 0;
+
+ /**
+ * @param dataType data type code as defined in DDP L0
+ * @return whether this class supports conversions of this type
+ */
+ virtual bool supports(const integer_t &dataType);
+
+ /**
+ * @param dataType data type name as defined in DDP L0
+ * @return whether this class supports conversions of this type
+ */
+ virtual bool supports(const string_t &dataType);
+
+ integer_t getTypeId();
+
+ string_t getTypeCode();
+};
+
+}
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/include/typedefs.h Sat Jul 14 16:58:33 2018 +0200
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <cstdint>
+#include <string>
+
+namespace relpipe {
+namespace writer {
+
+using octet_t = uint8_t;
+using integer_t = uint64_t;
+using boolean_t = bool;
+using string_t = std::wstring;
+
+}
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/DataTypeWriter.cpp Sat Jul 14 16:58:33 2018 +0200
@@ -0,0 +1,15 @@
+#include "../include/DataTypeWriter.h"
+
+namespace relpipe {
+namespace writer {
+
+template<typename T> string_t DataTypeWriter<T>::readString(std::istream &input) {
+ return toString(readValue(input));
+};
+
+template<typename T> void DataTypeWriter<T>::writeString(std::ostream& output, const string_t &stringValue) {
+ writeValue(output, toValue(stringValue));
+};
+
+}
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/DataTypeWriterBase.cpp Sat Jul 14 16:58:33 2018 +0200
@@ -0,0 +1,24 @@
+#include <string>
+#include "../include/DataTypeWriterBase.h"
+
+namespace relpipe {
+namespace writer {
+
+bool DataTypeWriterBase::supports(const integer_t &dataType) {
+ return dataType == typeId;
+}
+
+bool DataTypeWriterBase::supports(const string_t &dataType) {
+ return dataType == typeCode;
+}
+
+integer_t DataTypeWriterBase::getTypeId() {
+ return typeId;
+}
+
+string_t DataTypeWriterBase::getTypeCode() {
+ return typeCode;
+}
+
+}
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/format.h Sat Jul 14 16:58:33 2018 +0200
@@ -0,0 +1,31 @@
+#pragma once
+
+#include <cstdint>
+#include <string>
+
+namespace relpipe {
+namespace writer {
+
+const integer_t DATA_TYPE_ID_BOOLEAN = 1;
+const integer_t DATA_TYPE_ID_INTEGER = 2;
+const integer_t DATA_TYPE_ID_STRING = 3;
+
+const string_t DATA_TYPE_CODE_BOOLEAN = L"boolean";
+const string_t DATA_TYPE_CODE_INTEGER = L"integer";
+const string_t DATA_TYPE_CODE_STRING = L"string";
+
+
+/**
+ * With respect for the tradition and computer pioneers, we use same numbers as in ASCII texts:
+ *
+ * 1C FS ␜ File Separator
+ * 1D GS ␝ Group Separator
+ * 1E RS ␞ Record Separator
+ * 1F US ␟ Unit Separator
+ *
+ */
+const integer_t DATA_PART_START = 0x1D;
+const integer_t DATA_PART_ROW = 0x1E;
+
+}
+}
\ No newline at end of file