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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.helpers.Constants;
22 import org.apache.logging.log4j.core.impl.ThrowableProxy;
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32 @Plugin(name = "ExtendedThrowablePatternConverter", category = "Converter")
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 Throwable throwable = event.getThrown();
62 if (throwable != null && options.anyLines()) {
63 if (!(throwable instanceof ThrowableProxy)) {
64 super.format(event, toAppendTo);
65 return;
66 }
67 final ThrowableProxy t = (ThrowableProxy) throwable;
68 final String trace = t.getExtendedStackTrace(options.getPackages());
69 final int len = toAppendTo.length();
70 if (len > 0 && !Character.isWhitespace(toAppendTo.charAt(len - 1))) {
71 toAppendTo.append(" ");
72 }
73 if (!options.allLines() || !Constants.LINE_SEP.equals(options.getSeparator())) {
74 final StringBuilder sb = new StringBuilder();
75 final String[] array = trace.split(Constants.LINE_SEP);
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
85 } else {
86 toAppendTo.append(trace);
87 }
88 }
89 }
90 }