--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/FreeformASN1ContentHandler.h	Sun Jul 25 11:53:55 2021 +0200
@@ -0,0 +1,170 @@
+/**
+ * Relational pipes
+ * Copyright © 2021 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, version 3 of the License.
+ *
+ * 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 <relpipe/writer/RelationalWriter.h>
+#include "lib/ASN1ContentHandler.h"
+#include "Configuration.h"
+
+namespace relpipe {
+namespace in {
+namespace asn1 {
+
+class FreeformASN1ContentHandler : public lib::ASN1ContentHandler {
+private:
+	std::shared_ptr<relpipe::writer::RelationalWriter> writer;
+	Configuration configuration;
+	std::vector<relpipe::common::type::Integer> position;
+
+	class Record {
+	public:
+		const Header* header;
+		const std::vector<relpipe::common::type::Integer>& position;
+		relpipe::common::type::Integer level = 0;
+		relpipe::common::type::StringX event;
+
+		Record(const Header* header, std::vector<relpipe::common::type::Integer>& position, relpipe::common::type::StringX event) : header(header), position(position), event(event) {
+		}
+
+		virtual ~Record() {
+		}
+	};
+
+	void write(const Record& r) {
+		relpipe::common::type::Integer tag = r.header ? r.header->tag : -1; // TODO: null + possible integer overflow
+		relpipe::common::type::Integer id = r.position.back();
+		relpipe::common::type::Integer parent = r.position[r.position.size() - 2];
+		relpipe::common::type::Integer level = r.position.size() - 2;
+
+		writer->writeAttribute(&id, typeid (id));
+		writer->writeAttribute(&parent, typeid (parent));
+		writer->writeAttribute(&level, typeid (level));
+		writer->writeAttribute(&r.event, typeid (r.event));
+		writer->writeAttribute(&tag, typeid (tag));
+	}
+
+public:
+
+	FreeformASN1ContentHandler(std::shared_ptr<relpipe::writer::RelationalWriter> writer, Configuration configuration) : writer(writer), configuration(configuration) {
+	}
+
+	bool setOption(const std::string& uri, const std::string& value) override {
+		return false;
+	}
+
+	void writeStreamStart() override {
+		writer->startRelation(configuration.relation,{
+			{L"id", relpipe::writer::TypeId::INTEGER},
+			{L"parent", relpipe::writer::TypeId::INTEGER},
+			{L"level", relpipe::writer::TypeId::INTEGER},
+			{L"event", relpipe::writer::TypeId::STRING},
+			//{L"pc", relpipe::writer::TypeId::STRING},
+			//{L"tag_class", relpipe::writer::TypeId::STRING},
+			{L"tag", relpipe::writer::TypeId::INTEGER},
+		}, true);
+
+		position.push_back(-1); // TODO: null
+		position.push_back(1);
+		Record r(nullptr, position, L"stream-start");
+		write(r);
+		position.push_back(position.back());
+	}
+
+	void writeStreamEnd() override {
+		auto id = position.back() + 1;
+		position.pop_back();
+		position.back() = id;
+		Record r(nullptr, position, L"stream-end");
+		write(r);
+	}
+
+	void writeCollectionStart(const Header& header) override {
+		position.back()++;
+		Record r(&header, position, L"collection-start");
+		write(r);
+		position.push_back(position.back());
+	}
+
+	void writeCollectionEnd() override {
+		auto id = position.back() + 1;
+		position.pop_back();
+		position.back() = id;
+		Record r(nullptr, position, L"collection-end");
+		write(r);
+	}
+
+	void writeBitString(const Header& header, std::vector<bool> value) override {
+		position.back()++;
+		Record r(&header, position, L"bit-string");
+		write(r);
+	}
+
+	void writeBoolean(const Header& header, bool value) override {
+		position.back()++;
+		Record r(&header, position, L"boolean");
+		write(r);
+	}
+
+	void writeDateTime(const Header& header, DateTime value) override {
+		position.back()++;
+		Record r(&header, position, L"date-time");
+		write(r);
+	}
+
+	void writeInteger(const Header& header, Integer value) override {
+		position.back()++;
+		Record r(&header, position, L"integer");
+		write(r);
+	}
+
+	void writeNull(const Header& header) override {
+		position.back()++;
+		Record r(&header, position, L"null");
+		write(r);
+	}
+
+	void writeOID(const Header& header, ObjectIdentifier value) override {
+		position.back()++;
+		Record r(&header, position, L"oid");
+		write(r);
+	}
+
+	void writeOctetString(const Header& header, std::string value) override {
+		position.back()++;
+		Record r(&header, position, L"octet-string");
+		write(r);
+	}
+
+	void writeTextString(const Header& header, std::string value) override {
+		position.back()++;
+		Record r(&header, position, L"text-string");
+		write(r);
+	}
+
+	void writeSpecific(const Header& header, std::string value) override {
+		position.back()++;
+		Record r(&header, position, L"specific");
+		write(r);
+	}
+
+
+
+};
+
+}
+}
+}
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