--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/OdsHandler.h Fri Dec 07 12:49:39 2018 +0100
@@ -0,0 +1,139 @@
+/**
+ * Relational pipes
+ * Copyright © 2018 František Kučera (Frantovo.cz, GlobalCode.info)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <string>
+#include <vector>
+#include <iostream>
+#include <sstream>
+#include <locale>
+#include <codecvt>
+#include <regex>
+
+#include <relpipe/reader/typedefs.h>
+#include <relpipe/reader/TypeId.h>
+#include <relpipe/reader/handlers/RelationalReaderStringHandler.h>
+#include <relpipe/reader/handlers/AttributeMetadata.h>
+
+namespace relpipe {
+namespace out {
+namespace ods {
+
+using namespace relpipe::reader;
+
+class OdsHandler : public handlers::RelationalReaderStringHadler {
+private:
+ std::wstring_convert<std::codecvt_utf8<wchar_t>> convertor; // XML output will be always in UTF-8
+ const char* INDENT = "\t";
+
+ std::ostream &output;
+
+ std::vector<TypeId> columnTypes;
+ std::vector<string_t> columnTypeCodes;
+ std::vector<string_t> columnNames;
+ integer_t valueCount = 0;
+ integer_t columnCount = 0;
+ integer_t relationCount = 0;
+
+ const std::string escapeXmlText(const string_t &value) {
+ std::wstringstream result;
+
+ for (auto & ch : value) {
+ switch (ch) {
+ case L'&': result << L"&";
+ break;
+ case L'<': result << L"<";
+ break;
+ case L'>': result << L">";
+ break;
+ case L'\'': result << L"'"; // TODO: escape ' and " only in attributes
+ break;
+ case L'"': result << L"""; // TODO: escape ' and " only in attributes
+ break;
+ default: result << ch;
+ }
+ }
+
+ return convertor.to_bytes(result.str());
+ }
+
+public:
+
+ OdsHandler(std::ostream& output) : output(output) {
+ }
+
+ void startRelation(string_t name, std::vector<handlers::AttributeMetadata> attributes) override {
+ // TODO: refactor and move common XML functions to relpipe-lib-xml
+
+ valueCount = 0;
+ columnCount = 0;
+
+ if (relationCount == 0) {
+ output << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << std::endl;
+ output << "<pipe TODO=\"ods\">" << std::endl;
+ // TODO: xmlns
+ } else {
+ output << INDENT << INDENT << "</record>" << std::endl;
+ output << INDENT << "</relation>" << std::endl;
+ }
+ relationCount++;
+ output << INDENT << "<relation>" << std::endl;
+
+ output << INDENT << INDENT << "<name>" << escapeXmlText(name) << "</name>" << std::endl;
+
+
+ columnCount = attributes.size();
+ columnTypes.resize(columnCount);
+ columnTypeCodes.resize(columnCount);
+ columnNames.resize(columnCount);
+ for (int i = 0; i < attributes.size(); i++) {
+ columnNames[i] = attributes[i].getAttributeName();
+ columnTypes[i] = attributes[i].getTypeId();
+ columnTypeCodes[i] = attributes[i].getTypeName();
+ }
+
+ // TODO: print attribute metadata
+ }
+
+ void attribute(const string_t& value) override {
+ integer_t i = valueCount % columnCount;
+
+ if (i == 0 && valueCount) output << INDENT << INDENT << "</record>" << std::endl;
+ if (i == 0) output << INDENT << INDENT << "<record>" << std::endl;
+
+ valueCount++;
+
+ // TODO: print attribute metadata (optional)
+ output << INDENT << INDENT << INDENT << "<attribute>";
+ output << escapeXmlText(value);
+ output << "</attribute>" << std::endl;
+
+ }
+
+ void endOfPipe() {
+ if (valueCount) output << INDENT << INDENT << "</record>" << std::endl;
+ if (relationCount) output << INDENT << "</relation>" << std::endl;
+ output << "</pipe>" << std::endl;
+
+ }
+
+};
+
+}
+}
+}