v0.2.48..v0.2.49 changeset RemoveRef2Visitor.h

diff --git a/hoot-core/src/main/cpp/hoot/core/visitors/RemoveRef2Visitor.h b/hoot-core/src/main/cpp/hoot/core/visitors/RemoveRef2Visitor.h
new file mode 100644
index 0000000..ccdbfd5
--- /dev/null
+++ b/hoot-core/src/main/cpp/hoot/core/visitors/RemoveRef2Visitor.h
@@ -0,0 +1,95 @@
+/*
+ * 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) 2015, 2016, 2017, 2018, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ */
+#ifndef REMOVEREF2VISITOR_H
+#define REMOVEREF2VISITOR_H
+
+// hoot
+#include <hoot/core/criterion/ElementCriterionConsumer.h>
+#include <hoot/core/elements/ConstOsmMapConsumer.h>
+#include <hoot/core/elements/ElementVisitor.h>
+
+// Qt
+#include <QMap>
+#include <QMutex>
+
+namespace hoot
+{
+
+/**
+ * If the specified criterion meets for both the REF1 and REF2 elements, then the REF2 tag is
+ * removed.
+ *
+ * This class is re-entrant, but not thread safe.
+ */
+class RemoveRef2Visitor : public ElementVisitor, public ConstOsmMapConsumer,
+  public ElementCriterionConsumer
+{
+
+public:
+
+  typedef QMap<QString, ElementId> Ref1ToEid;
+
+  static std::string className() { return "hoot::RemoveRef2Visitor"; }
+
+  static int logWarnCount;
+
+  RemoveRef2Visitor();
+  virtual ~RemoveRef2Visitor() {}
+
+  virtual void addCriterion(const ElementCriterionPtr& e);
+
+  virtual void setOsmMap(OsmMap* map);
+  virtual void setOsmMap(const OsmMap* /*map*/) { assert(false); }
+
+  virtual void visit(const ElementPtr& e);
+
+  virtual bool ref1CriterionSatisfied(const ConstElementPtr& e) const;
+  virtual bool ref2CriterionSatisfied(const ConstElementPtr& e) const;
+
+  virtual QString getDescription() const
+  { return "Removes REF2 tags when a criterion is met for both REF1 and REF2 elements"; }
+
+protected:
+
+  ElementCriterionPtr _criterion;
+
+private:
+
+  OsmMap* _map;
+  Ref1ToEid _ref1ToEid;
+  static QStringList _ref2Keys;
+  static QMutex _mutex;
+  bool _errorOnMissingRef1;
+
+  bool _hasRef2Tag(ElementPtr e) const;
+  void _checkAndDeleteRef2(ElementPtr e, QString ref);
+
+};
+
+}
+
+#endif // REMOVEREF2VISITOR_H