/*

 * Copyright (c) 2015, 2016, 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

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 */

#ifndef SHARE_VM_LOGGING_LOGDECORATIONS_HPP

#define SHARE_VM_LOGGING_LOGDECORATIONS_HPP

#include "logging/logDecorators.hpp"

#include "logging/logTagSet.hpp"

#include "memory/allocation.hpp"

// Temporary object containing the necessary data for a log call's decorations (timestamps, etc).

class LogDecorations VALUE_OBJ_CLASS_SPEC {

 public:

  static const int DecorationsBufferSize = 256;

 private:

  char _decorations_buffer[DecorationsBufferSize];

  char* _decoration_offset[LogDecorators::Count];

  LogLevelType _level;

  const LogTagSet& _tagset;

  jlong _millis;

  static jlong _vm_start_time_millis;

  static const char* _host_name;

  jlong java_millis();

  void create_decorations(const LogDecorators& decorators);

#define DECORATOR(name, abbr) char* create_##name##_decoration(char* pos);

  DECORATOR_LIST

#undef DECORATOR

 public:

  static void initialize(jlong vm_start_time);

  LogDecorations(LogLevelType level, const LogTagSet& tagset, const LogDecorators& decorators);

  void set_level(LogLevelType level) {

    _level = level;

  }

  const char* decoration(LogDecorators::Decorator decorator) const {

    if (decorator == LogDecorators::level_decorator) {

      return LogLevel::name(_level);

    }

    return _decoration_offset[decorator];

  }

};

#endif // SHARE_VM_LOGGING_LOGDECORATIONS_HPP