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/*
* Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#ifndef SHARE_LOGGING_LOGSELECTION_HPP
#define SHARE_LOGGING_LOGSELECTION_HPP
#include "logging/logLevel.hpp"
#include "logging/logTag.hpp"
#include "memory/allocation.hpp"
class LogTagSet;
// Class representing a selection of tags with for a given level.
// Consists of a set of tags, an optional wildcard flag, and a level, e.g. "tag1+tag2*=level".
class LogSelection : public StackObj {
friend class LogSelectionList;
private:
size_t _ntags;
LogTagType _tags[LogTag::MaxTags];
bool _wildcard;
LogLevelType _level;
size_t _tag_sets_selected;
LogSelection();
public:
static const LogSelection Invalid;
static LogSelection parse(const char* str, outputStream* error_stream = NULL);
LogSelection(const LogTagType tags[LogTag::MaxTags], bool wildcard, LogLevelType level);
bool operator==(const LogSelection& ref) const;
bool operator!=(const LogSelection& ref) const;
size_t ntags() const;
LogLevelType level() const;
size_t tag_sets_selected() const;
bool selects(const LogTagSet& ts) const;
bool consists_of(const LogTagType tags[LogTag::MaxTags]) const;
void describe_tags_on(outputStream* out) const;
void describe_on(outputStream* out) const;
// List similar selections that matches existing tag sets on the given outputstream
void suggest_similar_matching(outputStream* out) const;
// Compute a similarity measure in the range [0, 1], where higher means more similar
double similarity(const LogSelection& other) const;
};
#endif // SHARE_LOGGING_LOGSELECTION_HPP
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