added basic OpenCV logging

grillbaer · Nov 1, 2021 · fcd9d20 · fcd9d20
1 parent f3f732f
commit fcd9d20
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Showing 3 changed files with 38 additions and 9 deletions.
diff --git a/spectracle-app/pom.xml b/spectracle-app/pom.xml
@@ -231,8 +231,14 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>1.7.30</version>
+            <version>1.7.32</version>
         </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>jul-to-slf4j</artifactId>
+            <version>1.7.32</version>
+        </dependency>
+
 
         <dependency>
             <groupId>org.junit.jupiter</groupId>

diff --git a/spectracle-app/src/main/java/grillbaer/spectracle/Main.java b/spectracle-app/src/main/java/grillbaer/spectracle/Main.java
@@ -6,13 +6,15 @@
 import nu.pattern.OpenCV;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.slf4j.bridge.SLF4JBridgeHandler;
 
 import javax.imageio.ImageIO;
 import javax.swing.*;
 import java.awt.*;
 import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.util.List;
+import java.util.logging.Level;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
@@ -23,13 +25,7 @@ public class Main {
     private final static Logger LOG = LoggerFactory.getLogger(Main.class);
 
     public static void main(String[] args) throws InterruptedException, InvocationTargetException {
-        LOG.info("Spectracle starting up ...");
-        LOG.info("OS Name: {}", System.getProperty("os.name"));
-        LOG.info("OS Arch: {}", System.getProperty("os.arch"));
-        LOG.info("OS Version: {}", System.getProperty("os.version"));
-        LOG.info("Java Version: {}", System.getProperty("java.version"));
-
-        Thread.setDefaultUncaughtExceptionHandler((t, e) -> LOG.error("Uncaught exception from thread {}", t.getName(), e));
+        initLogging();
 
         LOG.info("Initializing OpenCV ...");
         OpenCV.loadLocally();
@@ -55,6 +51,21 @@ public static void main(String[] args) throws InterruptedException, InvocationTa
         });
     }
 
+    private static void initLogging() {
+        LOG.info("================================================================================");
+        LOG.info("Spectracle starting up ...");
+
+        Thread.setDefaultUncaughtExceptionHandler((t, e) -> LOG.error("Uncaught exception from thread {}", t.getName(), e));
+
+        SLF4JBridgeHandler.removeHandlersForRootLogger();
+        SLF4JBridgeHandler.install(); // bridge JUL logging to SLF4j
+
+        LOG.info("OS Name: {}", System.getProperty("os.name"));
+        LOG.info("OS Arch: {}", System.getProperty("os.arch"));
+        LOG.info("OS Version: {}", System.getProperty("os.version"));
+        LOG.info("Java Version: {}", System.getProperty("java.version"));
+    }
+
     private static List<? extends Image> getWindowIcons() {
         return Stream.of(16, 24, 32, 48, 64, 128, 256)
                 .map(size -> {

diff --git a/spectracle-app/src/main/resources/logback.xml b/spectracle-app/src/main/resources/logback.xml
@@ -3,6 +3,8 @@
     <property name="LOG_DIR" value="${java.io.tmpdir}/spectracle"/>
     <property name="PATTERN" value="%date{ISO8601,UTC}  %-5level [%-20thread] %-36logger{35} - %msg%n"/>
 
+    <contextListener class="ch.qos.logback.classic.jul.LevelChangePropagator"/>
+
     <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
         <file>${LOG_DIR}/spectracle.log</file>
 
@@ -26,7 +28,17 @@
         </encoder>
     </appender>
 
-    <root level="DEBUG">
+    <logger name="com.sun.jna" level="DEBUG" additivity="false">
+        <appender-ref ref="FILE"/>
+        <appender-ref ref="STDOUT"/>
+    </logger>
+
+    <logger name="nu.pattern" level="TRACE" additivity="false">
+        <appender-ref ref="FILE"/>
+        <appender-ref ref="STDOUT"/>
+    </logger>
+
+    <root level="INFO">
         <appender-ref ref="FILE"/>
         <appender-ref ref="STDOUT"/>
     </root>