added some very basic logging

grillbaer · Nov 1, 2021 · f3f732f · f3f732f
1 parent bf11ed3
commit f3f732f
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Showing 5 changed files with 72 additions and 2 deletions.
diff --git a/.idea/runConfigurations.xml b/.idea/runConfigurations.xml
diff --git a/spectracle-app/src/main/java/grillbaer/spectracle/Main.java b/spectracle-app/src/main/java/grillbaer/spectracle/Main.java
@@ -4,6 +4,8 @@
 import grillbaer.spectracle.camera.Camera;
 import grillbaer.spectracle.ui.MainPanel;
 import nu.pattern.OpenCV;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import javax.imageio.ImageIO;
 import javax.swing.*;
@@ -12,12 +14,24 @@
 import java.lang.reflect.InvocationTargetException;
 import java.util.List;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 /**
  * Application entry point.
  */
 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));
+
+        LOG.info("Initializing OpenCV ...");
         OpenCV.loadLocally();
 
         final var context = new Context();
@@ -28,20 +42,21 @@ public static void main(String[] args) throws InterruptedException, InvocationTa
         context.getModel().setCameraPaused(false);
 
         SwingUtilities.invokeAndWait(() -> {
+            LOG.info("UI starting up ...");
             FlatDarkLaf.install();
             final var mainPanel = new MainPanel(context);
             final var frame = new JFrame("Spectracle");
             frame.setIconImages(getWindowIcons());
             frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
             frame.getContentPane().add(mainPanel.getComponent(), BorderLayout.CENTER);
             setDefaultWindowBounds(frame);
+            LOG.info("Setting main window visible");
             frame.setVisible(true);
         });
     }
 
     private static List<? extends Image> getWindowIcons() {
-        return List.of(16, 24, 32, 48, 64, 128, 256)
-                .stream()
+        return Stream.of(16, 24, 32, 48, 64, 128, 256)
                 .map(size -> {
                     try {
                         return ImageIO.read(

diff --git a/spectracle-app/src/main/java/grillbaer/spectracle/camera/Camera.java b/spectracle-app/src/main/java/grillbaer/spectracle/camera/Camera.java
@@ -41,6 +41,7 @@ public final class Camera implements Closeable {
     }
 
     public Camera(int id) {
+        LOG.info("Camera id={}: opening ...", id);
         this.id = id;
         this.videoCapture = new VideoCapture(id);
 
@@ -127,4 +128,9 @@ private String formatPropValue(int propId, double value) {
         return String.format(Locale.ROOT, "%-40s %5d = %6.1f",
                 PROP_NAMES_BY_ID.get(propId), propId, value);
     }
+
+    @Override
+    public String toString() {
+        return "Camera[" + "id=" + this.id + ", cameraProps=" + this.cameraProps + "]";
+    }
 }
diff --git a/spectracle-app/src/main/java/grillbaer/spectracle/model/Model.java b/spectracle-app/src/main/java/grillbaer/spectracle/model/Model.java
@@ -10,6 +10,8 @@
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NonNull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import javax.swing.*;
 import java.util.*;
@@ -22,6 +24,8 @@
  */
 @Getter
 public final class Model {
+    private final static Logger LOG = LoggerFactory.getLogger(Model.class);
+
     private Camera camera;
     private final Observers<Camera> cameraObservers = new Observers<>();
 
@@ -94,6 +98,7 @@ private void updateSampleLineFromGrabbedFrame() {
      */
     public void setCamera(Camera camera) {
         if (this.camera != camera) {
+            LOG.info("Setting camera {}", camera);
             this.camera = camera;
             final var cameraProps = getCameraProps();
             if (cameraProps != null) {

diff --git a/spectracle-app/src/main/resources/logback.xml b/spectracle-app/src/main/resources/logback.xml
@@ -0,0 +1,34 @@
+<configuration>
+
+    <property name="LOG_DIR" value="${java.io.tmpdir}/spectracle"/>
+    <property name="PATTERN" value="%date{ISO8601,UTC}  %-5level [%-20thread] %-36logger{35} - %msg%n"/>
+
+    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${LOG_DIR}/spectracle.log</file>
+
+        <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
+            <fileNamePattern>${LOG_DIR}/spectracle.%i.log</fileNamePattern>
+            <minIndex>1</minIndex>
+            <maxIndex>2</maxIndex>
+        </rollingPolicy>
+
+        <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
+            <maxFileSize>1MB</maxFileSize>
+        </triggeringPolicy>
+        <encoder>
+            <pattern>${PATTERN}</pattern>
+        </encoder>
+    </appender>
+
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>${PATTERN}</pattern>
+        </encoder>
+    </appender>
+
+    <root level="DEBUG">
+        <appender-ref ref="FILE"/>
+        <appender-ref ref="STDOUT"/>
+    </root>
+
+</configuration>