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17 package org.apache.logging.log4j.core.filter;
18
19 import java.util.Locale;
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21 import org.apache.logging.log4j.Level;
22 import org.apache.logging.log4j.Marker;
23 import org.apache.logging.log4j.core.LogEvent;
24 import org.apache.logging.log4j.core.Logger;
25 import org.apache.logging.log4j.core.config.plugins.Plugin;
26 import org.apache.logging.log4j.core.config.plugins.PluginAttr;
27 import org.apache.logging.log4j.core.config.plugins.PluginFactory;
28 import org.apache.logging.log4j.message.Message;
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38 @Plugin(name = "ThresholdFilter", type = "Core", elementType = "filter", printObject = true)
39 public final class ThresholdFilter extends AbstractFilter {
40
41 private final Level level;
42
43 private ThresholdFilter(Level level, Result onMatch, Result onMismatch) {
44 super(onMatch, onMismatch);
45 this.level = level;
46 }
47
48 @Override
49 public Result filter(Logger logger, Level level, Marker marker, String msg, Object[] params) {
50 return filter(level);
51 }
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53 @Override
54 public Result filter(Logger logger, Level level, Marker marker, Object msg, Throwable t) {
55 return filter(level);
56 }
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58 @Override
59 public Result filter(Logger logger, Level level, Marker marker, Message msg, Throwable t) {
60 return filter(level);
61 }
62
63 @Override
64 public Result filter(LogEvent event) {
65 return filter(event.getLevel());
66 }
67
68 private Result filter(Level level) {
69 return level.isAtLeastAsSpecificAs(this.level) ? onMatch : onMismatch;
70 }
71
72 @Override
73 public String toString() {
74 return level.toString();
75 }
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84 @PluginFactory
85 public static ThresholdFilter createFilter(@PluginAttr("level") String levelName,
86 @PluginAttr("onMatch") String match,
87 @PluginAttr("onMismatch") String mismatch) {
88 Level level = Level.toLevel(levelName, Level.ERROR);
89 Result onMatch = Result.toResult(match, Result.NEUTRAL);
90 Result onMismatch = Result.toResult(mismatch, Result.DENY);
91 return new ThresholdFilter(level, onMatch, onMismatch);
92 }
93
94 }