X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.init%2Fsrc%2Forg%2Fargeo%2Finit%2Flogging%2FThinLoggerFinder.java;h=f443b2e669d28aa9599716e126adb24397db6f66;hb=1010bff4f1ffadbf3f7988fbd3eba70f5d672c88;hp=7849309460933695f5b60a96d44f5e8cf2592c4c;hpb=b7d8618ce593bbeca7e311d32a4d98988e27f877;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.init/src/org/argeo/init/logging/ThinLoggerFinder.java b/org.argeo.init/src/org/argeo/init/logging/ThinLoggerFinder.java
index 784930946..f443b2e66 100644
--- a/org.argeo.init/src/org/argeo/init/logging/ThinLoggerFinder.java
+++ b/org.argeo.init/src/org/argeo/init/logging/ThinLoggerFinder.java
@@ -1,14 +1,27 @@
 package org.argeo.init.logging;
 
+import java.io.Serializable;
 import java.lang.System.Logger;
 import java.lang.System.LoggerFinder;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.Flow;
+import java.util.function.Consumer;
 
-/** Factory for Java system logging. */
+/**
+ * Factory for Java system logging. As it has to be a public class in order to
+ * be exposed as a service provider, it is also the main entry point for the
+ * thin logging system, via static methos.
+ */
 public class ThinLoggerFinder extends LoggerFinder {
-	private ThinLogging logging;
+	private static ThinLogging logging;
+	private static ThinJavaUtilLogging javaUtilLogging;
 
 	public ThinLoggerFinder() {
-		logging = new ThinLogging();
+		if (logging != null)
+			throw new IllegalStateException("Only one logging can be initialised.");
+		init();
 	}
 
 	@Override
@@ -16,4 +29,53 @@ public class ThinLoggerFinder extends LoggerFinder {
 		return logging.getLogger(name, module);
 	}
 
+	private static void init() {
+		logging = new ThinLogging();
+
+		Map<String, Object> configuration = new HashMap<>();
+		for (Object key : System.getProperties().keySet()) {
+			Objects.requireNonNull(key);
+			String property = key.toString();
+			if (property.startsWith(ThinLogging.LEVEL_PROPERTY_PREFIX)
+					|| property.equals(ThinLogging.DEFAULT_LEVEL_PROPERTY))
+				configuration.put(property, System.getProperty(property));
+		}
+		logging.accept(configuration);
+	}
+
+	/**
+	 * Falls back to java.util.logging if thin logging was not already initialised
+	 * by the {@link LoggerFinder} mechanism.
+	 */
+	public static void lazyInit() {
+		if (logging != null)
+			return;
+		if (javaUtilLogging != null)
+			return;
+		init();
+		javaUtilLogging = ThinJavaUtilLogging.init();
+		javaUtilLogging.readConfiguration(logging.getLevels());
+	}
+
+	public static Consumer<Map<String, Object>> getConfigurationConsumer() {
+		Objects.requireNonNull(logging);
+		return logging;
+	}
+
+	public static Flow.Publisher<Map<String, Serializable>> getLogEntryPublisher() {
+		Objects.requireNonNull(logging);
+		return logging.getLogEntryPublisher();
+	}
+
+	static void update(Map<String, Object> configuration) {
+		if (logging == null)
+			throw new IllegalStateException("Thin logging must be initialized first");
+		logging.accept(configuration);
+		if (javaUtilLogging != null)
+			javaUtilLogging.readConfiguration(logging.getLevels());
+	}
+
+	static Logger getLogger(String name) {
+		return logging.getLogger(name, null);
+	}
 }