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17 package org.apache.logging.log4j.core.pattern;
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19 import org.apache.logging.log4j.core.LogEvent;
20 import org.apache.logging.log4j.core.config.plugins.Plugin;
21 import org.apache.logging.log4j.core.impl.ThrowableProxy;
22 import org.apache.logging.log4j.util.Strings;
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32 @Plugin(name = "ExtendedThrowablePatternConverter", category = PatternConverter.CATEGORY)
33 @ConverterKeys({ "xEx", "xThrowable", "xException" })
34 public final class ExtendedThrowablePatternConverter extends ThrowablePatternConverter {
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41 private ExtendedThrowablePatternConverter(final String[] options) {
42 super("ExtendedThrowable", "throwable", options);
43 }
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52 public static ExtendedThrowablePatternConverter newInstance(final String[] options) {
53 return new ExtendedThrowablePatternConverter(options);
54 }
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59 @Override
60 public void format(final LogEvent event, final StringBuilder toAppendTo) {
61 final ThrowableProxy proxy = event.getThrownProxy();
62 final Throwable throwable = event.getThrown();
63 if ((throwable != null || proxy != null) && options.anyLines()) {
64 if (proxy == null) {
65 super.format(event, toAppendTo);
66 return;
67 }
68 final String extStackTrace = proxy.getExtendedStackTraceAsString(options.getIgnorePackages(), options.getTextRenderer());
69 final int len = toAppendTo.length();
70 if (len > 0 && !Character.isWhitespace(toAppendTo.charAt(len - 1))) {
71 toAppendTo.append(' ');
72 }
73 if (!options.allLines() || !Strings.LINE_SEPARATOR.equals(options.getSeparator())) {
74 final StringBuilder sb = new StringBuilder();
75 final String[] array = extStackTrace.split(Strings.LINE_SEPARATOR);
76 final int limit = options.minLines(array.length) - 1;
77 for (int i = 0; i <= limit; ++i) {
78 sb.append(array[i]);
79 if (i < limit) {
80 sb.append(options.getSeparator());
81 }
82 }
83 toAppendTo.append(sb.toString());
84 } else {
85 toAppendTo.append(extStackTrace);
86 }
87 }
88 }
89 }