v0.2.55..v0.2.56 changeset MultipleSublineMatcherSnapMerger.cpp

diff --git a/hoot-core/src/main/cpp/hoot/core/conflate/MultipleSublineMatcherSnapMerger.cpp b/hoot-core/src/main/cpp/hoot/core/conflate/MultipleSublineMatcherSnapMerger.cpp
new file mode 100644
index 0000000..040dcee
--- /dev/null
+++ b/hoot-core/src/main/cpp/hoot/core/conflate/MultipleSublineMatcherSnapMerger.cpp
@@ -0,0 +1,83 @@
+/*
+ * This file is part of Hootenanny.
+ *
+ * Hootenanny 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/>.
+ *
+ * --------------------------------------------------------------------
+ *
+ * The following copyright notices are generated automatically. If you
+ * have a new notice to add, please use the format:
+ * " * @copyright Copyright ..."
+ * This will properly maintain the copyright information. DigitalGlobe
+ * copyrights will be updated automatically.
+ *
+ * @copyright Copyright (C) 2020 DigitalGlobe (http://www.digitalglobe.com/)
+ */
+#include "MultipleSublineMatcherSnapMerger.h"
+
+// hoot
+#include <hoot/core/algorithms/subline-matching/SublineStringMatcher.h>
+#include <hoot/core/util/Factory.h>
+#include <hoot/core/util/ConfigOptions.h>
+#include <hoot/core/util/Exception.h>
+
+namespace hoot
+{
+
+HOOT_FACTORY_REGISTER(Merger, MultipleSublineMatcherSnapMerger)
+
+MultipleSublineMatcherSnapMerger::MultipleSublineMatcherSnapMerger() :
+HighwaySnapMerger()
+{
+}
+
+MultipleSublineMatcherSnapMerger::MultipleSublineMatcherSnapMerger(
+  const std::set<std::pair<ElementId, ElementId>>& pairs,
+  const std::shared_ptr<SublineStringMatcher>& sublineMatcher,
+  const std::shared_ptr<SublineStringMatcher>& sublineMatcher2) :
+HighwaySnapMerger(pairs, sublineMatcher),
+_sublineMatcher2(sublineMatcher2)
+{
+  // The subline matchers have already been initialized by the conflate script by this point.
+}
+
+WaySublineMatchString MultipleSublineMatcherSnapMerger::_matchSubline(
+  OsmMapPtr map, ElementPtr e1, ElementPtr e2)
+{
+  WaySublineMatchString match;
+  if (e1->getElementType() != ElementType::Node && e2->getElementType() != ElementType::Node)
+  {
+    LOG_TRACE(
+      "Matching river sublines for merging: " << e1->getElementId() << ", " <<
+       e2->getElementId() << "...");
+    try
+    {
+      match = _sublineMatcher->findMatch(map, e1, e2);
+    }
+    catch (const RecursiveComplexityException&)
+    {
+      // If we receive this exception with the more accurate but sometimes slower maximal subline
+      // matcher (assuming _sublineMatcher was configured to be Maximal), we'll try again with the
+      // Frechet matcher, which is sometimes less accurate but usually much faster (assuming
+      // _sublineMatcher2 was configured to be Frechet).
+      LOG_TRACE(
+        "Encountered max recursive complexity. Re-matching river sublines for merging: " <<
+        e1->getElementId() << ", " <<  e2->getElementId() << "...");
+      match = _sublineMatcher2->findMatch(map, e1, e2);
+    }
+  }
+  return match;
+}
+
+}