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520e96c634
The compaction strategy was modify to return its compaction type. The type method calls the virtual impl type method. Each of the implementations return its type. A name method was added to the compaction strategy that return the name according to the strategy type. And the static type method was modified to recieve a const reference to the string. Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
/*
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* Copyright 2015 Cloudius Systems
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*/
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#pragma once
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class column_family;
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namespace sstables {
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enum class compaction_strategy_type {
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null,
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major,
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size_tiered,
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// FIXME: Add support to LevelTiered, and DateTiered.
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};
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class compaction_strategy_impl;
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class compaction_strategy {
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::shared_ptr<compaction_strategy_impl> _compaction_strategy_impl;
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public:
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compaction_strategy(::shared_ptr<compaction_strategy_impl> impl);
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compaction_strategy();
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~compaction_strategy();
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compaction_strategy(const compaction_strategy&);
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compaction_strategy(compaction_strategy&&);
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compaction_strategy& operator=(compaction_strategy&&);
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future<> compact(column_family& cfs);
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static sstring name(compaction_strategy_type type) {
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switch (type) {
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case compaction_strategy_type::null:
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return "NullCompactionStrategy";
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case compaction_strategy_type::major:
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return "MajorCompactionStrategy";
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case compaction_strategy_type::size_tiered:
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return "SizeTieredCompactionStrategy";
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default:
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throw std::runtime_error("Invalid Compaction Strategy");
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}
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}
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static compaction_strategy_type type(const sstring& name) {
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if (name == "NullCompactionStrategy") {
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return compaction_strategy_type::null;
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} else if (name == "MajorCompactionStrategy") {
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return compaction_strategy_type::major;
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} else if (name == "SizeTieredCompactionStrategy") {
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return compaction_strategy_type::size_tiered;
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} else {
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throw exceptions::configuration_exception(sprint("Unable to find compaction strategy class 'org.apache.cassandra.db.compaction.%s", name));
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}
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}
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compaction_strategy_type type() const;
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sstring name() const {
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return name(type());
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}
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};
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// Creates a compaction_strategy object from one of the strategies available.
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compaction_strategy make_compaction_strategy(compaction_strategy_type strategy, const std::map<sstring, sstring>& options);
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}
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