Add sangria-slf4j module.

2 files changed, 73 insertions, 0 deletions

diff --git a/sangria-slf4j/src/main/java/com/tavianator/sangria/slf4j/SangriaSlf4jModule.java b/sangria-slf4j/src/main/java/com/tavianator/sangria/slf4j/SangriaSlf4jModule.java
new file mode 100644
index 0000000..9be0f8a
--- /dev/null
+++ b/sangria-slf4j/src/main/java/com/tavianator/sangria/slf4j/SangriaSlf4jModule.java
@@ -0,0 +1,33 @@
+/*********************************************************************
+ * Sangria                                                           *
+ * Copyright (C) 2014 Tavian Barnes <tavianator@tavianator.com>      *
+ *                                                                   *
+ * This library is free software. It comes without any warranty, to  *
+ * the extent permitted by applicable law. You can redistribute it   *
+ * and/or modify it under the terms of the Do What The Fuck You Want *
+ * To Public License, Version 2, as published by Sam Hocevar. See    *
+ * the COPYING file or http://www.wtfpl.net/ for more details.       *
+ *********************************************************************/
+
+package com.tavianator.sangria.slf4j;
+
+import com.google.inject.AbstractModule;
+import org.slf4j.Logger;
+
+import com.tavianator.sangria.contextual.ContextSensitiveBinder;
+
+/**
+ * Module for SLF4J {@link Logger} injection.
+ *
+ * @author Tavian Barnes (tavianator@tavianator.com)
+ * @version 1.0
+ * @since 1.0
+ */
+public class SangriaSlf4jModule extends AbstractModule {
+    @Override
+    protected void configure() {
+        ContextSensitiveBinder.create(binder())
+                .bind(Logger.class)
+                .toContextSensitiveProvider(Slf4jLoggerProvider.class);
+    }
+}
diff --git a/sangria-slf4j/src/main/java/com/tavianator/sangria/slf4j/Slf4jLoggerProvider.java b/sangria-slf4j/src/main/java/com/tavianator/sangria/slf4j/Slf4jLoggerProvider.java
new file mode 100644
index 0000000..cae4836
--- /dev/null
+++ b/sangria-slf4j/src/main/java/com/tavianator/sangria/slf4j/Slf4jLoggerProvider.java
@@ -0,0 +1,40 @@
+/*********************************************************************
+ * Sangria                                                           *
+ * Copyright (C) 2014 Tavian Barnes <tavianator@tavianator.com>      *
+ *                                                                   *
+ * This library is free software. It comes without any warranty, to  *
+ * the extent permitted by applicable law. You can redistribute it   *
+ * and/or modify it under the terms of the Do What The Fuck You Want *
+ * To Public License, Version 2, as published by Sam Hocevar. See    *
+ * the COPYING file or http://www.wtfpl.net/ for more details.       *
+ *********************************************************************/
+
+package com.tavianator.sangria.slf4j;
+
+import javax.inject.Singleton;
+
+import com.google.inject.spi.InjectionPoint;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.tavianator.sangria.contextual.ContextSensitiveProvider;
+
+/**
+ * Actual {@link Logger} provider implementation.
+ *
+ * @author Tavian Barnes (tavianator@tavianator.com)
+ * @version 1.0
+ * @since 1.0
+ */
+@Singleton
+class Slf4jLoggerProvider implements ContextSensitiveProvider<Logger> {
+    @Override
+    public Logger getInContext(InjectionPoint injectionPoint) {
+        return LoggerFactory.getLogger(injectionPoint.getDeclaringType().getRawType());
+    }
+
+    @Override
+    public Logger getInUnknownContext() {
+        return LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
+    }
+}