[feat] Implement ParallaxNameBase and ParallaxArrayName helper classes for store integration

Author: NikosLasithiotakis

src/fdb5/parallax/ParallaxNameBase.cpp

@@ -0,0 +1,65 @@
+/*
+ * (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 "ParallaxNameBase.h"
+#include "eckit/exception/Exceptions.h"
+#include "eckit/filesystem/PathName.h"
+#include "eckit/io/Buffer.h"
+#include "eckit/io/FileHandle.h"
+#include "eckit/io/MemoryHandle.h"
+#include "eckit/utils/Tokenizer.h"
+#include <atomic>
+#include <iomanip>
+
+#include "fdb5/parallax/ParallaxArrayPartHandle.h"
+
+namespace fdb5
+{
+//===----------------------------------------------------------------------===//
+// ParallaxNameBase
+//===----------------------------------------------------------------------===//
+
+ParallaxNameBase::ParallaxNameBase(const eckit::URI &uri)
+	: uri_(uri)
+{
+	ASSERT(uri.scheme() == "parallax");
+	ASSERT(uri.query() == std::string());
+	ASSERT(uri.fragment() == std::string());
+
+	eckit::Tokenizer parse("/");
+	std::vector<std::string> bits;
+	parse(uri.name(), bits);
+
+	ASSERT(bits.size() > 0);
+	ASSERT(bits.size() < 4);
+
+	key_ = bits[0];
+}
+
+std::string ParallaxNameBase::asString() const
+{
+	return key_;
+}
+
+//===----------------------------------------------------------------------===//
+// ParallaxArrayName
+//===----------------------------------------------------------------------===//
+
+ParallaxArrayName::ParallaxArrayName(const eckit::URI &uri)
+	: ParallaxNameBase(uri)
+{
+}
+
+eckit::DataHandle *ParallaxArrayName::dataHandle(const eckit::Offset &offset, const eckit::Length &length) const
+{
+	return new fdb5::ParallaxArrayPartHandle(*this, offset, length);
+}
+
+}

src/fdb5/parallax/ParallaxNameBase.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 <memory>
+#include <string>
+
+#include "eckit/filesystem/URI.h"
+#include "eckit/io/DataHandle.h"
+#include "eckit/utils/Optional.h"
+#include "fdb5/parallax/ParallaxArray.h"
+
+namespace fdb5
+{
+class ParallaxNameBase {
+    public:
+	std::string asString() const;
+
+    protected:
+	ParallaxNameBase(const eckit::URI &);
+
+	std::string key_;
+	const eckit::URI uri_;
+};
+
+class ParallaxArray;
+
+class ParallaxArrayName : public ParallaxNameBase {
+    public:
+	ParallaxArrayName(const eckit::URI &);
+
+	eckit::DataHandle *dataHandle(const eckit::Offset &, const eckit::Length &) const;
+};
+
+}