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Apache Geode provides a database-like consistency model, reliable transaction processing and a shared-nothing architecture to maintain very low latency performance with high concurrency processing
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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License. You may obtain a
 * copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
package org.apache.geode.internal.logging;

import org.apache.geode.LogWriter;
import org.apache.geode.i18n.LogWriterI18n;
import org.apache.geode.i18n.StringId;

/**
 * Each logger has a level and it will only print messages whose level is greater than or equal to
 * the logger's level. The supported logger level constants, in ascending order, are:
 * 
 * {@link #ALL_LEVEL}
 * 
{@link #FINEST_LEVEL}
 * 
{@link #FINER_LEVEL}
 * 
{@link #FINE_LEVEL}
 * 
{@link #CONFIG_LEVEL}
 * 
{@link #INFO_LEVEL}
 * 
{@link #WARNING_LEVEL}
 * 
{@link #ERROR_LEVEL}
 * 
{@link #SEVERE_LEVEL}
 * 
{@link #NONE_LEVEL}
 * 
 */
public interface InternalLogWriter extends LogWriter, LogWriterI18n {

  /**
   * If the writer's level is ALL_LEVEL then all messages will be logged.
   */
  public final static int ALL_LEVEL = Integer.MIN_VALUE;
  /**
   * If the writer's level is FINEST_LEVEL then finest, finer, fine, config, info,
   * warning, error, and severe messages will be logged.
   */
  public final static int FINEST_LEVEL = 300;
  /**
   * If the writer's level is FINER_LEVEL then finer, fine, config, info, warning,
   * error, and severe messages will be logged.
   */
  public final static int FINER_LEVEL = 400;
  /**
   * If the writer's level is FINE_LEVEL then fine, config, info, warning, error, and
   * severe messages will be logged.
   */
  public final static int FINE_LEVEL = 500;
  /**
   * If the writer's level is CONFIG_LEVEL then config, info, warning, error, and
   * severe messages will be logged.
   */
  public final static int CONFIG_LEVEL = 700;
  /**
   * If the writer's level is INFO_LEVEL then info, warning, error, and severe messages
   * will be logged.
   */
  public final static int INFO_LEVEL = 800;
  /**
   * If the writer's level is WARNING_LEVEL then warning, error, and severe messages
   * will be logged.
   */
  public final static int WARNING_LEVEL = 900;
  /**
   * If the writer's level is SEVERE_LEVEL then only severe messages will be logged.
   */
  public final static int SEVERE_LEVEL = 1000;
  /**
   * If the writer's level is ERROR_LEVEL then error and severe messages will be
   * logged.
   */
  public final static int ERROR_LEVEL = (WARNING_LEVEL + SEVERE_LEVEL) / 2;
  /**
   * If the writer's level is NONE_LEVEL then no messages will be logged.
   */
  public final static int NONE_LEVEL = Integer.MAX_VALUE;

  public static final String[] levelNames = new String[] {"all", "finest", "finer", "fine",
      "config", "info", "warning", "error", "severe", "none"};

  public static final int[] allLevels = new int[] {ALL_LEVEL, FINEST_LEVEL, FINER_LEVEL, FINE_LEVEL,
      CONFIG_LEVEL, INFO_LEVEL, WARNING_LEVEL, ERROR_LEVEL, SEVERE_LEVEL, NONE_LEVEL};

  public int getLogWriterLevel();

  public void setLogWriterLevel(int LogWriterLevel);

  public boolean isSecure();

  public String getConnectionName();

  /**
   * Logs a message and an exception of the given level.
   * 
   * @param msgLevel the level code for the message to log
   * @param msg the actual message to log
   * @param exception the actual Exception to log
   */
  public void put(int msgLevel, String msg, Throwable exception);

  /**
   * Logs a message and an exception of the given level.
   * 
   * @param msgLevel the level code for the message to log
   * @param msgId A locale agnostic form of the message
   * @param params the Object arguments to plug into the message
   * @param exception the actual Exception to log
   */
  public void put(int msgLevel, StringId msgId, Object[] params, Throwable exception);
}