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3 | 3 | import ch.qos.logback.classic.spi.ILoggingEvent;
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4 | 4 | import ch.qos.logback.classic.spi.ThrowableProxy;
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5 | 5 | import com.fasterxml.jackson.core.JsonFactory;
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| 6 | +import lombok.Setter; |
6 | 7 | import lombok.SneakyThrows;
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7 | 8 | import lombok.extern.slf4j.Slf4j;
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8 | 9 | import net.logstash.logback.encoder.LogstashEncoder;
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14 | 15 |
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15 | 16 | import static java.util.Objects.nonNull;
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16 | 17 |
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| 18 | +/** |
| 19 | + * Config: |
| 20 | + * <li>{@code maxStackTraceLength}: Default 480, set to a negative number to disable truncation of stack trace altogether.</li> |
| 21 | + */ |
17 | 22 | @Slf4j
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18 | 23 | public class TestnavLogbackEncoder extends LogstashEncoder {
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19 | 24 |
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20 | 25 | // matches exactly 11 digits (\\d{11}) that are not immediately preceded ((?<!\\d)) or followed ((?!\\d)) by another digit.
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21 | 26 | private final Pattern pattern = Pattern.compile("(?<!\\d)\\d{11}(?!\\d)");
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22 | 27 |
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| 28 | + @Setter |
| 29 | + private int maxStackTraceLength = 480; |
| 30 | + |
23 | 31 | @SneakyThrows
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24 | 32 | @Override
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25 | 33 | public byte[] encode(ILoggingEvent event) {
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26 |
| - var outputStream = new ByteArrayOutputStream(); |
27 |
| - |
28 |
| - var generator = new JsonFactory().createGenerator(outputStream); |
29 |
| - |
30 |
| - generator.writeStartObject(); |
31 |
| - |
32 |
| - generator.writeStringField("@timestamp", new java.text.SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSSXXX") |
33 |
| - .format(new java.util.Date(event.getTimeStamp()))); |
34 |
| - generator.writeStringField("message", formatMessage(event.getFormattedMessage())); |
35 |
| - generator.writeStringField("logger_name", event.getLoggerName()); |
36 |
| - generator.writeStringField("thread_name", event.getThreadName()); |
37 |
| - generator.writeStringField("level", event.getLevel().toString()); |
38 | 34 |
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39 |
| - if (nonNull(event.getThrowableProxy())) { |
40 |
| - var exception = (ThrowableProxy) event.getThrowableProxy(); |
41 |
| - if (nonNull(exception.getThrowable())) { |
42 |
| - var sw = new StringWriter(); |
43 |
| - var pw = new PrintWriter(sw); |
44 |
| - for (StackTraceElement element : exception.getThrowable().getStackTrace()) { |
45 |
| - pw.println("\tat " + element); |
| 35 | + var outputStream = new ByteArrayOutputStream(); |
| 36 | + try (var generator = new JsonFactory().createGenerator(outputStream)) { |
| 37 | + |
| 38 | + generator.writeStartObject(); |
| 39 | + generator.writeStringField("@timestamp", new java.text.SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSSXXX") |
| 40 | + .format(new java.util.Date(event.getTimeStamp()))); |
| 41 | + generator.writeStringField("message", formatMessage(event.getFormattedMessage())); |
| 42 | + generator.writeStringField("logger_name", event.getLoggerName()); |
| 43 | + generator.writeStringField("thread_name", event.getThreadName()); |
| 44 | + generator.writeStringField("level", event.getLevel().toString()); |
| 45 | + if (nonNull(event.getThrowableProxy())) { |
| 46 | + var exception = (ThrowableProxy) event.getThrowableProxy(); |
| 47 | + if (nonNull(exception.getThrowable())) { |
| 48 | + var sw = new StringWriter(); |
| 49 | + var pw = new PrintWriter(sw); |
| 50 | + for (StackTraceElement element : exception.getThrowable().getStackTrace()) { |
| 51 | + pw.println("\tat " + element); |
| 52 | + } |
| 53 | + var stackTrace = maxStackTraceLength < 0 ? sw.toString() : sw.toString().substring(0, maxStackTraceLength); |
| 54 | + generator.writeStringField("stack_trace", stackTrace); |
46 | 55 | }
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47 |
| - var stackTrace = sw.toString()/*.substring(0, 480)*/; //Limit the stack trace to 480 characters |
48 |
| - generator.writeStringField("stack_trace", stackTrace); |
49 | 56 | }
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50 |
| - } |
| 57 | + generator.writeEndObject(); |
51 | 58 |
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52 |
| - generator.writeEndObject(); |
53 |
| - |
54 |
| - generator.flush(); |
55 |
| - outputStream.write('\n'); |
| 59 | + generator.flush(); |
| 60 | + outputStream.write('\n'); |
| 61 | + } |
56 | 62 |
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57 | 63 | return outputStream.toByteArray();
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58 | 64 | }
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