Organic Maps sources as of 02.04.2025 (fad26bbf22ac3da75e01e62aa01e5c8e11861005)

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generator/osm_source.hpp

@@ -0,0 +1,90 @@
+#pragma once
+
+#include "generator/generate_info.hpp"
+#include "generator/intermediate_data.hpp"
+#include "generator/osm_o5m_source.hpp"
+#include "generator/osm_xml_source.hpp"
+#include "generator/translator_interface.hpp"
+
+#include "coding/parse_xml.hpp"
+
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <queue>
+#include <sstream>
+#include <string>
+
+struct OsmElement;
+class FeatureParams;
+
+namespace generator
+{
+class SourceReader
+{
+  struct Deleter
+  {
+    bool m_needDelete;
+    Deleter(bool needDelete = true) : m_needDelete(needDelete) {}
+    void operator()(std::istream * s) const
+    {
+      if (m_needDelete)
+        delete s;
+    }
+  };
+
+  std::unique_ptr<std::istream, Deleter> m_file;
+  uint64_t m_pos = 0;
+
+public:
+  SourceReader();
+  explicit SourceReader(std::string const & filename);
+  explicit SourceReader(std::istringstream & stream);
+
+  uint64_t Read(char * buffer, uint64_t bufferSize);
+  uint64_t Pos() const { return m_pos; }
+};
+
+bool GenerateIntermediateData(feature::GenerateInfo & info);
+
+void ProcessOsmElementsFromO5M(SourceReader & stream, std::function<void (OsmElement &&)> const & processor);
+void ProcessOsmElementsFromXML(SourceReader & stream, std::function<void (OsmElement &&)> const & processor);
+
+class ProcessorOsmElementsInterface
+{
+public:
+  virtual ~ProcessorOsmElementsInterface() = default;
+
+  virtual bool TryRead(OsmElement & element) = 0;
+};
+
+class ProcessorOsmElementsFromO5M : public ProcessorOsmElementsInterface
+{
+public:
+  explicit ProcessorOsmElementsFromO5M(SourceReader & stream);
+
+  // ProcessorOsmElementsInterface overrides:
+  bool TryRead(OsmElement & element) override;
+
+private:
+  SourceReader & m_stream;
+  osm::O5MSource m_dataset;
+  osm::O5MSource::Iterator m_pos;
+};
+
+class ProcessorOsmElementsFromXml : public ProcessorOsmElementsInterface
+{
+public:
+  explicit ProcessorOsmElementsFromXml(SourceReader & stream);
+
+  // ProcessorOsmElementsInterface overrides:
+  bool TryRead(OsmElement & element) override;
+
+private:
+  bool TryReadFromQueue(OsmElement & element);
+
+  XMLSource m_xmlSource;
+  XMLSequenceParser<SourceReader, XMLSource> m_parser;
+  std::queue<OsmElement> m_queue;
+};
+}  // namespace generator