[feat] Implement ParallaxFieldLocation for archive storage and data retrieval

Author: NikosLasithiotakis

src/fdb5/parallax/ParallaxFieldLocation.cpp

@@ -0,0 +1,60 @@
+/*
+ * (C) Copyright 1996- ECMWF.
+ *
+ * This software is licensed under the terms of the Apache Licence Version 2.0
+ * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
+ * In applying this licence, ECMWF does not waive the privileges and immunities
+ * granted to it by virtue of its status as an intergovernmental organisation nor
+ * does it submit to any jurisdiction.
+ */
+
+#include "fdb5/parallax/ParallaxFieldLocation.h"
+#include "eckit/filesystem/URIManager.h"
+#include "fdb5/LibFdb5.h"
+#include "fdb5/parallax/ParallaxArray.h"
+
+namespace fdb5
+{
+::eckit::ClassSpec ParallaxFieldLocation::classSpec_ = {
+	&FieldLocation::classSpec(),
+	"ParallaxFieldLocation",
+};
+::eckit::Reanimator<ParallaxFieldLocation> ParallaxFieldLocation::reanimator_;
+
+ParallaxFieldLocation::ParallaxFieldLocation(const ParallaxFieldLocation &rhs)
+	: FieldLocation(rhs.uri_, rhs.offset_, rhs.length_, rhs.remapKey_)
+{
+}
+
+ParallaxFieldLocation::ParallaxFieldLocation(const eckit::URI &uri, eckit::Offset offset, eckit::Length length,
+					     const Key &remapKey)
+	: FieldLocation(uri, offset, length, remapKey)
+{
+}
+
+ParallaxFieldLocation::ParallaxFieldLocation(eckit::Stream &s)
+	: FieldLocation(s)
+{
+}
+
+std::shared_ptr<FieldLocation> ParallaxFieldLocation::make_shared() const
+{
+	return std::make_shared<ParallaxFieldLocation>(std::move(*this));
+}
+
+eckit::DataHandle *ParallaxFieldLocation::dataHandle() const
+{
+	return fdb5::ParallaxArrayName(uri_).dataHandle(offset(), length());
+}
+
+void ParallaxFieldLocation::print(std::ostream &out) const
+{
+	out << "ParallaxFieldLocation[uri=" << uri_ << "]";
+}
+
+void ParallaxFieldLocation::visit(FieldLocationVisitor &visitor) const
+{
+	visitor(*this);
+}
+
+}

src/fdb5/parallax/ParallaxFieldLocation.h

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+/*
+ * (C) Copyright 1996- ECMWF.
+ *
+ * This software is licensed under the terms of the Apache Licence Version 2.0
+ * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
+ * In applying this licence, ECMWF does not waive the privileges and immunities
+ * granted to it by virtue of its status as an intergovernmental organisation nor
+ * does it submit to any jurisdiction.
+ */
+
+#pragma once
+
+#include "eckit/io/Length.h"
+#include "eckit/io/Offset.h"
+
+#include "fdb5/database/FieldLocation.h"
+
+namespace fdb5
+{
+class ParallaxFieldLocation : public FieldLocation {
+    public:
+	ParallaxFieldLocation(const ParallaxFieldLocation &rhs);
+	ParallaxFieldLocation(const eckit::URI &uri, eckit::Offset offset, eckit::Length length, const Key &remapKey);
+	ParallaxFieldLocation(eckit::Stream &);
+
+	eckit::DataHandle *dataHandle() const override;
+
+	virtual std::shared_ptr<FieldLocation> make_shared() const override;
+
+	virtual void visit(FieldLocationVisitor &visitor) const override;
+
+    public:
+	static const eckit::ClassSpec &classSpec()
+	{
+		return classSpec_;
+	}
+
+    protected:
+	virtual const eckit::ReanimatorBase &reanimator() const override
+	{
+		return reanimator_;
+	}
+
+	static eckit::ClassSpec classSpec_;
+	static eckit::Reanimator<ParallaxFieldLocation> reanimator_;
+
+    private:
+	void print(std::ostream &out) const override;
+};
+
+}