v0.2.48..v0.2.49 changeset BuildingRelationMemberTagMerger.cpp

diff --git a/hoot-core/src/main/cpp/hoot/core/schema/BuildingRelationMemberTagMerger.cpp b/hoot-core/src/main/cpp/hoot/core/schema/BuildingRelationMemberTagMerger.cpp
new file mode 100644
index 0000000..be0fced
--- /dev/null
+++ b/hoot-core/src/main/cpp/hoot/core/schema/BuildingRelationMemberTagMerger.cpp
@@ -0,0 +1,131 @@
+/*
+ * 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) 2018, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ */
+#include "BuildingRelationMemberTagMerger.h"
+
+// hoot
+#include <hoot/core/schema/OsmSchema.h>
+#include <hoot/core/schema/TagComparator.h>
+#include <hoot/core/util/Factory.h>
+#include <hoot/core/schema/MetadataTags.h>
+
+// Qt
+#include <QStringBuilder>
+
+namespace hoot
+{
+
+std::set<QString> BuildingRelationMemberTagMerger::_buildingPartTagNames;
+
+HOOT_FACTORY_REGISTER(TagMerger, BuildingRelationMemberTagMerger)
+
+BuildingRelationMemberTagMerger::BuildingRelationMemberTagMerger()
+{
+}
+
+BuildingRelationMemberTagMerger::BuildingRelationMemberTagMerger(
+  const std::set<QString>& ignoreTagKeys) :
+_ignoreTagKeys(ignoreTagKeys)
+{
+}
+
+std::set<QString> BuildingRelationMemberTagMerger::getBuildingPartTagNames()
+{
+  if (_buildingPartTagNames.size() == 0)
+  {
+    const std::vector<SchemaVertex>& buildingPartTags =
+      OsmSchema::getInstance().getAssociatedTagsAsVertices(MetadataTags::BuildingPart() + "=yes");
+    for (size_t i = 0; i < buildingPartTags.size(); i++)
+    {
+      _buildingPartTagNames.insert(buildingPartTags[i].name.split("=")[0]);
+    }
+    _buildingPartTagNames.insert(MetadataTags::BuildingPart());
+  }
+  return _buildingPartTagNames;
+}
+
+Tags BuildingRelationMemberTagMerger::mergeTags(
+  const Tags& relationTags, const Tags& constituentBuildingTags, ElementType /*elementType*/) const
+{
+  LOG_VART(relationTags);
+  LOG_VART(constituentBuildingTags);
+
+  Tags mergedTags = relationTags;
+  Tags relationTagsCopy = relationTags;
+  Tags constituentBuildingTagsCopy = constituentBuildingTags;
+
+  Tags names;
+  TagComparator::getInstance().mergeNames(relationTagsCopy, constituentBuildingTagsCopy, names);
+  mergedTags.set(names);
+  LOG_VART(mergedTags);
+
+  // go through all the tags
+  OsmSchema& schema = OsmSchema::getInstance();
+  for (Tags::const_iterator it = constituentBuildingTags.begin();
+       it != constituentBuildingTags.end(); ++it)
+  {
+    // ignore any specified ignore keys
+    if (_ignoreTagKeys.find(it.key()) == _ignoreTagKeys.end())
+    {
+      // If the tag isn't already in the relation, add it.
+      if (mergedTags.contains(it.key()) == false)
+      {
+        mergedTags[it.key()] = it.value();
+      }
+      // If this is an arbitrary text value, then concatenate the values.
+      else if (schema.isTextTag(it.key()))
+      {
+        mergedTags.appendValueIfUnique(it.key(), it.value());
+      }
+      // If the tag is in the relation and the tags differ, mark it empty.
+      else if (mergedTags[it.key()] != it.value())
+      {
+        mergedTags[it.key()] = "";
+      }
+    }
+  }
+  LOG_VART(mergedTags);
+
+  // go through all the keys that were consistent for each of the parts and move them into the
+  // relation.
+
+  relationTagsCopy = mergedTags;
+  for (Tags::const_iterator it = relationTagsCopy.begin(); it != relationTagsCopy.end(); ++it)
+  {
+    // If the value is empty, then the tag isn't needed, or it wasn't consistent between multiple
+    // parts...remove it.
+    if (it.value() == "")
+    {
+      mergedTags.remove(it.key());
+    }
+  }
+
+  LOG_VART(mergedTags);
+
+  return mergedTags;
+}
+
+}