| /* |
| * 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.log4j.rule; |
| |
| import java.util.HashSet; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import org.apache.log4j.chainsaw.logevents.ChainsawLoggingEvent; |
| import org.apache.log4j.chainsaw.logevents.Level; |
| import org.apache.log4j.spi.LoggingEventFieldResolver; |
| |
| /** |
| * A Rule class implementing inequality evaluation for Levels (log4j and |
| * util.logging) using the toInt method. |
| * |
| * @author Scott Deboy (sdeboy@apache.org) |
| */ |
| public class LevelInequalityRule { |
| /** |
| * Level list. |
| */ |
| private static List levelList; |
| /** |
| * List equivalents of java.util.logging levels. |
| */ |
| private static List utilLoggingLevelList; |
| |
| static { |
| populateLevels(); |
| } |
| |
| /** |
| * Create new instance. |
| */ |
| private LevelInequalityRule() { |
| super(); |
| } |
| |
| /** |
| * Populate list of levels. |
| */ |
| private static void populateLevels() { |
| levelList = new LinkedList(); |
| |
| levelList.add(Level.FATAL.toString()); |
| levelList.add(Level.ERROR.toString()); |
| levelList.add(Level.WARN.toString()); |
| levelList.add(Level.INFO.toString()); |
| levelList.add(Level.DEBUG.toString()); |
| levelList.add(Level.TRACE.toString()); |
| |
| utilLoggingLevelList = new LinkedList(); |
| |
| // utilLoggingLevelList.add(UtilLoggingLevel.SEVERE.toString()); |
| // utilLoggingLevelList.add(UtilLoggingLevel.WARNING.toString()); |
| // utilLoggingLevelList.add(UtilLoggingLevel.INFO.toString()); |
| // utilLoggingLevelList.add(UtilLoggingLevel.CONFIG.toString()); |
| // utilLoggingLevelList.add(UtilLoggingLevel.FINE.toString()); |
| // utilLoggingLevelList.add(UtilLoggingLevel.FINER.toString()); |
| // utilLoggingLevelList.add(UtilLoggingLevel.FINEST.toString()); |
| |
| } |
| |
| /** |
| * Create new rule. |
| * @param inequalitySymbol inequality symbol. |
| * @param value Symbolic name of comparison level. |
| * @return instance of AbstractRule. |
| */ |
| public static Rule getRule(final String inequalitySymbol, final String value) { |
| |
| Level thisLevel = null; |
| |
| // if valid util.logging levels are used against events |
| // with log4j levels, the |
| // DEBUG level is used and an illegalargumentexception won't be generated |
| |
| // an illegalargumentexception is only generated |
| // if the user types a level name |
| // that doesn't exist as either a log4j or util.logging level name |
| if (levelList.contains(value.toUpperCase())) { |
| thisLevel = Level.valueOf(value.toUpperCase()); |
| } else if (utilLoggingLevelList.contains(value.toUpperCase())) { |
| // thisLevel = UtilLoggingLevel.toLevel(value.toUpperCase()); |
| } else { |
| throw new IllegalArgumentException( |
| "Invalid level inequality rule - " + value + " is not a supported level"); |
| } |
| |
| if ("<".equals(inequalitySymbol)) { |
| return new LessThanRule(thisLevel); |
| } |
| if (">".equals(inequalitySymbol)) { |
| return new GreaterThanRule(thisLevel); |
| } |
| if ("<=".equals(inequalitySymbol)) { |
| return new LessThanEqualsRule(thisLevel); |
| } |
| if (">=".equals(inequalitySymbol)) { |
| return new GreaterThanEqualsRule(thisLevel); |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Rule returning true if event level less than specified level. |
| */ |
| private static final class LessThanRule extends AbstractRule { |
| /** |
| * Comparison level. |
| */ |
| private final int newLevelInt; |
| |
| /** |
| * Create new instance. |
| * @param level comparison level. |
| */ |
| public LessThanRule(final Level level) { |
| super(); |
| newLevelInt = level.ordinal(); |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean evaluate(final ChainsawLoggingEvent event, Map matches) { |
| Level eventLevel = event.m_level; |
| boolean result = (eventLevel.ordinal() < newLevelInt); |
| if (result && matches != null) { |
| Set entries = (Set) matches.get(LoggingEventFieldResolver.LEVEL_FIELD); |
| if (entries == null) { |
| entries = new HashSet(); |
| matches.put(LoggingEventFieldResolver.LEVEL_FIELD, entries); |
| } |
| entries.add(eventLevel); |
| } |
| return result; |
| } |
| } |
| |
| /** |
| * Rule returning true if event level greater than specified level. |
| */ |
| private static final class GreaterThanRule extends AbstractRule { |
| /** |
| * Comparison level. |
| */ |
| private final int newLevelInt; |
| |
| /** |
| * Create new instance. |
| * @param level comparison level. |
| */ |
| public GreaterThanRule(final Level level) { |
| super(); |
| newLevelInt = level.ordinal(); |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean evaluate(final ChainsawLoggingEvent event, Map matches) { |
| Level eventLevel = event.m_level; |
| boolean result = (eventLevel.ordinal() > newLevelInt); |
| if (result && matches != null) { |
| Set entries = (Set) matches.get(LoggingEventFieldResolver.LEVEL_FIELD); |
| if (entries == null) { |
| entries = new HashSet(); |
| matches.put(LoggingEventFieldResolver.LEVEL_FIELD, entries); |
| } |
| entries.add(eventLevel); |
| } |
| return result; |
| } |
| } |
| |
| /** |
| * Rule returning true if event level greater than |
| * or equal to specified level. |
| */ |
| private static final class GreaterThanEqualsRule extends AbstractRule { |
| /** |
| * Comparison level. |
| */ |
| private final int newLevelInt; |
| |
| /** |
| * Create new instance. |
| * @param level comparison level. |
| */ |
| public GreaterThanEqualsRule(final Level level) { |
| super(); |
| newLevelInt = level.ordinal(); |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean evaluate(final ChainsawLoggingEvent event, Map matches) { |
| Level eventLevel = event.m_level; |
| boolean result = eventLevel.ordinal() >= newLevelInt; |
| if (result && matches != null) { |
| Set entries = (Set) matches.get(LoggingEventFieldResolver.LEVEL_FIELD); |
| if (entries == null) { |
| entries = new HashSet(); |
| matches.put(LoggingEventFieldResolver.LEVEL_FIELD, entries); |
| } |
| entries.add(eventLevel); |
| } |
| return result; |
| } |
| } |
| |
| /** |
| * Rule returning true if event level less than or |
| * equal to specified level. |
| */ |
| private static final class LessThanEqualsRule extends AbstractRule { |
| /** |
| * Comparison level. |
| */ |
| private final int newLevelInt; |
| |
| /** |
| * Create new instance. |
| * @param level comparison level. |
| */ |
| public LessThanEqualsRule(final Level level) { |
| super(); |
| newLevelInt = level.ordinal(); |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean evaluate(final ChainsawLoggingEvent event, Map matches) { |
| Level eventLevel = event.m_level; |
| boolean result = eventLevel.ordinal() <= newLevelInt; |
| if (result && matches != null) { |
| Set entries = (Set) matches.get(LoggingEventFieldResolver.LEVEL_FIELD); |
| if (entries == null) { |
| entries = new HashSet(); |
| matches.put(LoggingEventFieldResolver.LEVEL_FIELD, entries); |
| } |
| entries.add(eventLevel); |
| } |
| |
| return result; |
| } |
| } |
| } |