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logSelectionList.cpp 
100 строк · 3.1 Кб
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/*
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 * Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "logging/logSelectionList.hpp"
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#include "logging/logTagSet.hpp"
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#include "runtime/os.hpp"
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static const char* DefaultExpressionString = "all";
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bool LogSelectionList::verify_selections(outputStream* out) const {
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  bool valid = true;
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  for (size_t i = 0; i < _nselections; i++) {
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    if (_selections[i].tag_sets_selected() == 0) {
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      // Return immediately unless all invalid selections should be listed
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      if (out == nullptr) {
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        return false;
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      }
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      out->print("No tag set matches selection:");
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      valid = false;
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      out->print(" ");
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      _selections[i].describe_tags_on(out);
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      out->print(". ");
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      _selections[i].suggest_similar_matching(out);
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      out->cr();
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    }
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  }
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  return valid;
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}
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bool LogSelectionList::parse(const char* str, outputStream* errstream) {
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  bool success = true;
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  if (str == nullptr || strcmp(str, "") == 0) {
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    str = DefaultExpressionString;
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  }
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  char* copy = os::strdup_check_oom(str, mtLogging);
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  // Split string on commas
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  for (char *comma_pos = copy, *cur = copy; success && comma_pos != nullptr; cur = comma_pos + 1) {
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    if (_nselections == MaxSelections) {
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      if (errstream != nullptr) {
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        errstream->print_cr("Can not have more than " SIZE_FORMAT " log selections in a single configuration.",
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                            MaxSelections);
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      }
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      success = false;
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      break;
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    }
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    comma_pos = strchr(cur, ',');
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    if (comma_pos != nullptr) {
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      *comma_pos = '\0';
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    }
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    LogSelection selection = LogSelection::parse(cur, errstream);
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    if (selection == LogSelection::Invalid) {
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      success = false;
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      break;
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    }
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    _selections[_nselections++] = selection;
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  }
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  os::free(copy);
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  return success;
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}
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LogLevelType LogSelectionList::level_for(const LogTagSet& ts) const {
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  // Return NotMentioned if the given tagset isn't covered by this expression.
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  LogLevelType level = LogLevel::NotMentioned;
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  for (size_t i= 0; i < _nselections; i++) {
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    if (_selections[i].selects(ts)) {
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      level = _selections[i].level();
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    }
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  }
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  return level;
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}
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