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Signed-off-by: Oleh Dokuka <oleh.dokuka@icloud.com>
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rsocket-core/src/jcstress/java/io/rsocket/utils/FastLogger.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| package io.rsocket.utils; | ||
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| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.Comparator; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
| import java.util.stream.Collectors; | ||
| import reactor.util.Logger; | ||
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| /** | ||
| * Implementation of {@link Logger} which is based on the {@link ThreadLocal} based queue which | ||
| * collects all the events on the per-thread basis. </br> Such logger is designed to have all events | ||
| * stored during the stress-test run and then sorted and printed out once all the Threads completed | ||
| * execution (inside the {@link org.openjdk.jcstress.annotations.Arbiter} annotated method. </br> | ||
| * Note, this implementation only supports trace-level logs and ignores all others, it is intended | ||
| * to be used by {@link reactor.core.publisher.StateLogger}. | ||
| */ | ||
| public class FastLogger implements Logger { | ||
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| final Map<Thread, List<String>> queues = new ConcurrentHashMap<>(); | ||
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| final ThreadLocal<List<String>> logsQueueLocal = | ||
| ThreadLocal.withInitial( | ||
| () -> { | ||
| final ArrayList<String> logs = new ArrayList<>(100); | ||
| queues.put(Thread.currentThread(), logs); | ||
| return logs; | ||
| }); | ||
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| private final String name; | ||
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| public FastLogger(String name) { | ||
| this.name = name; | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return queues | ||
| .values() | ||
| .stream() | ||
| .flatMap(List::stream) | ||
| .sorted( | ||
| Comparator.comparingLong( | ||
| s -> { | ||
| Pattern pattern = Pattern.compile("\\[(.*?)]"); | ||
| Matcher matcher = pattern.matcher(s); | ||
| matcher.find(); | ||
| return Long.parseLong(matcher.group(1)); | ||
| })) | ||
| .collect(Collectors.joining("\n")); | ||
| } | ||
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| @Override | ||
| public String getName() { | ||
| return this.name; | ||
| } | ||
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| @Override | ||
| public boolean isTraceEnabled() { | ||
| return true; | ||
| } | ||
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| @Override | ||
| public void trace(String msg) { | ||
| logsQueueLocal.get().add(String.format("[%s] %s", System.nanoTime(), msg)); | ||
| } | ||
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| @Override | ||
| public void trace(String format, Object... arguments) { | ||
| trace(String.format(format, arguments)); | ||
| } | ||
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| @Override | ||
| public void trace(String msg, Throwable t) { | ||
| trace(String.format("%s, %s", msg, Arrays.toString(t.getStackTrace()))); | ||
| } | ||
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| @Override | ||
| public boolean isDebugEnabled() { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public void debug(String msg) {} | ||
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| @Override | ||
| public void debug(String format, Object... arguments) {} | ||
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| @Override | ||
| public void debug(String msg, Throwable t) {} | ||
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| @Override | ||
| public boolean isInfoEnabled() { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public void info(String msg) {} | ||
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| @Override | ||
| public void info(String format, Object... arguments) {} | ||
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| @Override | ||
| public void info(String msg, Throwable t) {} | ||
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| @Override | ||
| public boolean isWarnEnabled() { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public void warn(String msg) {} | ||
|
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| @Override | ||
| public void warn(String format, Object... arguments) {} | ||
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| @Override | ||
| public void warn(String msg, Throwable t) {} | ||
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| @Override | ||
| public boolean isErrorEnabled() { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public void error(String msg) {} | ||
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| @Override | ||
| public void error(String format, Object... arguments) {} | ||
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| @Override | ||
| public void error(String msg, Throwable t) {} | ||
| } |
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