X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=srcjar_unused%2Forg%2Fapache%2Flog4j%2Fvaria%2FLevelRangeFilter.java;fp=srcjar_unused%2Forg%2Fapache%2Flog4j%2Fvaria%2FLevelRangeFilter.java;h=9dfacb1be5c3810bbf8c7faab4e2377656102f44;hb=2639d90e2b52d49cf586c0b602bc606033c9b8ae;hp=0000000000000000000000000000000000000000;hpb=aaead18c6acb21da4d63f3ad9f454d9eb410152f;p=jalview.git diff --git a/srcjar_unused/org/apache/log4j/varia/LevelRangeFilter.java b/srcjar_unused/org/apache/log4j/varia/LevelRangeFilter.java new file mode 100644 index 0000000..9dfacb1 --- /dev/null +++ b/srcjar_unused/org/apache/log4j/varia/LevelRangeFilter.java @@ -0,0 +1,144 @@ +/* + * 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.varia; + +import org.apache.log4j.Level; +import org.apache.log4j.spi.Filter; +import org.apache.log4j.spi.LoggingEvent; + +/** + This is a very simple filter based on level matching, which can be + used to reject messages with priorities outside a certain range. + +
The filter admits three options LevelMin, LevelMax + and AcceptOnMatch. + +
If the level of the {@link LoggingEvent} is not between Min and Max + (inclusive), then {@link Filter#DENY} is returned. + +
If the Logging event level is within the specified range, then if + AcceptOnMatch is true, {@link Filter#ACCEPT} is returned, and if + AcceptOnMatch is false, {@link Filter#NEUTRAL} is returned. + +
If LevelMin
w is not defined, then there is no
+ minimum acceptable level (ie a level is never rejected for
+ being too "low"/unimportant). If LevelMax
is not
+ defined, then there is no maximum acceptable level (ie a
+ level is never rejected for beeing too "high"/important).
+
+
Refer to the {@link
+ org.apache.log4j.AppenderSkeleton#setThreshold setThreshold} method
+ available to all
appenders extending {@link
+ org.apache.log4j.AppenderSkeleton} for a more convenient way to
+ filter out events by level.
+
+ @author Simon Kitching
+ @author based on code by Ceki Gülcü
+*/
+public class LevelRangeFilter extends Filter {
+
+ /**
+ Do we return ACCEPT when a match occurs. Default is
+ false
, so that later filters get run by default */
+ boolean acceptOnMatch = false;
+
+ Level levelMin;
+ Level levelMax;
+
+
+ /**
+ Return the decision of this filter.
+ */
+ public
+ int decide(LoggingEvent event) {
+ if(this.levelMin != null) {
+ if (event.getLevel().isGreaterOrEqual(levelMin) == false) {
+ // level of event is less than minimum
+ return Filter.DENY;
+ }
+ }
+
+ if(this.levelMax != null) {
+ if (event.getLevel().toInt() > levelMax.toInt()) {
+ // level of event is greater than maximum
+ // Alas, there is no Level.isGreater method. and using
+ // a combo of isGreaterOrEqual && !Equal seems worse than
+ // checking the int values of the level objects..
+ return Filter.DENY;
+ }
+ }
+
+ if (acceptOnMatch) {
+ // this filter set up to bypass later filters and always return
+ // accept if level in range
+ return Filter.ACCEPT;
+ }
+ else {
+ // event is ok for this filter; allow later filters to have a look..
+ return Filter.NEUTRAL;
+ }
+ }
+
+ /**
+ Get the value of the LevelMax
option. */
+ public
+ Level getLevelMax() {
+ return levelMax;
+ }
+
+
+ /**
+ Get the value of the LevelMin
option. */
+ public
+ Level getLevelMin() {
+ return levelMin;
+ }
+
+ /**
+ Get the value of the AcceptOnMatch
option.
+ */
+ public
+ boolean getAcceptOnMatch() {
+ return acceptOnMatch;
+ }
+
+ /**
+ Set the LevelMax
option.
+ */
+ public
+ void setLevelMax(Level levelMax) {
+ this.levelMax = levelMax;
+ }
+
+ /**
+ Set the LevelMin
option.
+ */
+ public
+ void setLevelMin(Level levelMin) {
+ this.levelMin = levelMin;
+ }
+
+ /**
+ Set the AcceptOnMatch
option.
+ */
+ public
+ void setAcceptOnMatch(boolean acceptOnMatch) {
+ this.acceptOnMatch = acceptOnMatch;
+ }
+}
+