From a530d52d05699924ad09cfabe462e9f53c7b095d Mon Sep 17 00:00:00 2001
From: bvn13 <from-github@bvn13.me>
Date: Tue, 17 Sep 2024 21:54:58 +0300
Subject: [PATCH] preparing springboot

---
 springboot/IgnoringActuatorLoggingFilter.java | 38 +++++++++++++++++++
 springboot/logback-prod.xml                   | 11 ++++++
 springboot.yaml => springboot/springboot.yaml |  0
 3 files changed, 49 insertions(+)
 create mode 100644 springboot/IgnoringActuatorLoggingFilter.java
 create mode 100644 springboot/logback-prod.xml
 rename springboot.yaml => springboot/springboot.yaml (100%)

diff --git a/springboot/IgnoringActuatorLoggingFilter.java b/springboot/IgnoringActuatorLoggingFilter.java
new file mode 100644
index 0000000..4162979
--- /dev/null
+++ b/springboot/IgnoringActuatorLoggingFilter.java
@@ -0,0 +1,38 @@
+package me.bvn13.logging;
+
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.core.filter.Filter;
+import ch.qos.logback.core.spi.FilterReply;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.regex.Pattern;
+
+public class IgnoringActuatorLoggingFilter extends Filter<ILoggingEvent> {
+    private static final Pattern ACTUATOR =
+            Pattern.compile("GET \"/(health|prometheus)\", parameters=\\{}");
+    private static final Pattern COMPLETED =
+            Pattern.compile("Completed 200 OK");
+
+    private final Set<String> activeThreads = new HashSet<>();
+
+    @Override
+    public FilterReply decide(ILoggingEvent loggingEvent) {
+        if (isHealthOrPrometheus(loggingEvent.getMessage())) {
+            activeThreads.add(loggingEvent.getThreadName());
+            return FilterReply.DENY;
+        } else if (isCompleted200Ok(loggingEvent.getMessage()) && activeThreads.remove(loggingEvent.getThreadName())) {
+            return FilterReply.DENY;
+        } else {
+            return FilterReply.ACCEPT;
+        }
+    }
+
+    private boolean isHealthOrPrometheus(String message) {
+        return ACTUATOR.matcher(message).matches();
+    }
+
+    private boolean isCompleted200Ok(String message) {
+        return COMPLETED.matcher(message).matches();
+    }
+}
diff --git a/springboot/logback-prod.xml b/springboot/logback-prod.xml
new file mode 100644
index 0000000..d633115
--- /dev/null
+++ b/springboot/logback-prod.xml
@@ -0,0 +1,11 @@
+<configuration>
+    <appender name="JSON_STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <filter class="me.bvn13.logging.IgnoringActuatorLoggingFilter"/>
+        <encoder class="net.logstash.logback.encoder.LogstashEncoder"/>
+    </appender>
+
+    <root level="info">
+        <!--        <appender-ref ref="STDOUT" />-->
+        <appender-ref ref="JSON_STDOUT"/>
+    </root>
+</configuration>
diff --git a/springboot.yaml b/springboot/springboot.yaml
similarity index 100%
rename from springboot.yaml
rename to springboot/springboot.yaml