Repo created

generator/node_mixer.cpp

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+#include "generator/node_mixer.hpp"
+
+#include "base/logging.hpp"
+#include "base/string_utils.hpp"
+
+namespace generator
+{
+void MixFakeNodes(std::istream & stream, std::function<void(OsmElement &)> const & processor)
+{
+  if (stream.fail())
+    return;
+
+  // Max node id on 12.02.2018 times hundred — good enough until ~2030.
+  uint64_t constexpr baseNodeId = 5396734321 * 100;
+  uint8_t constexpr kCFLat = 1;
+  uint8_t constexpr kCFLon = 2;
+  uint8_t constexpr kCFTags = 4;
+  uint8_t constexpr kCFAll = kCFLat | kCFLon | kCFTags;
+  uint64_t count = 0;
+  uint8_t completionFlag = 0;
+  OsmElement p;
+  p.m_id = baseNodeId;
+  p.m_type = OsmElement::EntityType::Node;
+
+  using std::string;
+  string line;
+  while (std::getline(stream, line))
+  {
+    if (line.empty())
+    {
+      if (completionFlag == kCFAll)
+      {
+        processor(p);
+        count++;
+        p.Clear();
+        p.m_id = baseNodeId + count;
+        p.m_type = OsmElement::EntityType::Node;
+        completionFlag = 0;
+      }
+      continue;
+    }
+
+    auto const eqPos = line.find('=');
+    if (eqPos != string::npos)
+    {
+      string key = line.substr(0, eqPos);
+      string value = line.substr(eqPos + 1);
+      strings::Trim(key);
+      strings::Trim(value);
+
+      if (key == "lat")
+      {
+        if (strings::to_double(value, p.m_lat))
+          completionFlag |= kCFLat;
+      }
+      else if (key == "lon")
+      {
+        if (strings::to_double(value, p.m_lon))
+          completionFlag |= kCFLon;
+      }
+      else
+      {
+        p.AddTag(key, value);
+        completionFlag |= kCFTags;
+      }
+    }
+  }
+
+  if (completionFlag == kCFAll)
+  {
+    processor(p);
+    count++;
+  }
+
+  LOG(LINFO, ("Added", count, "fake nodes."));
+}
+}  // namespace generator