From 7ee6c7f3a17113930474b2f83c17a0ac7a2f56f1 Mon Sep 17 00:00:00 2001
From: Georgios Andrianakis <geoand@gmail.com>
Date: Fri, 24 Apr 2020 09:29:11 +0300
Subject: [PATCH] Introduce the ability to use a custom logger

Relates to: https://github.com/quarkusio/quarkus/issues/8798
---
 core/src/main/java/io/dekorate/Session.java   | 15 ++++++++--
 .../java/io/dekorate/logger/NoopLogger.java   | 29 +++++++++++++++++++
 2 files changed, 41 insertions(+), 3 deletions(-)
 create mode 100644 core/src/main/java/io/dekorate/logger/NoopLogger.java

diff --git a/core/src/main/java/io/dekorate/Session.java b/core/src/main/java/io/dekorate/Session.java
index 4607e4f41..0381119fe 100644
--- a/core/src/main/java/io/dekorate/Session.java
+++ b/core/src/main/java/io/dekorate/Session.java
@@ -64,19 +64,27 @@ public class Session {
   private final AtomicReference<SessionWriter> writer = new AtomicReference<>();
   private final Map<Class<? extends SessionListener>, SessionListener> listeners = new HashMap<>();
 
-  private final Logger LOGGER = LoggerFactory.getLogger();
+  private final Logger LOGGER;
 
   /**
    * Creates or reuses a single instance of Session.
    * @return  The Session.
    */
   public static Session getSession() {
+    return getSession(LoggerFactory.getLogger());
+  }
+
+  /**
+   * Creates or reuses a single instance of Session.
+   * @return  The Session.
+   */
+  public static Session getSession(Logger logger) {
     if (INSTANCE != null) {
       return INSTANCE;
     }
     synchronized (Session.class) {
       if (INSTANCE == null) {
-        INSTANCE = new Session();
+        INSTANCE = new Session(logger);
         INSTANCE.loadHandlers();
         INSTANCE.loadGenerators();
       }
@@ -84,7 +92,8 @@ public static Session getSession() {
     return INSTANCE;
   }
 
-  protected Session() {
+  protected Session(Logger logger) {
+    LOGGER = logger;
     LOGGER.info("Initializing dekorate session.");
   }
 
diff --git a/core/src/main/java/io/dekorate/logger/NoopLogger.java b/core/src/main/java/io/dekorate/logger/NoopLogger.java
new file mode 100644
index 000000000..b8e3e3563
--- /dev/null
+++ b/core/src/main/java/io/dekorate/logger/NoopLogger.java
@@ -0,0 +1,29 @@
+package io.dekorate.logger;
+
+import io.dekorate.Logger;
+
+/**
+ * Used to suppress logging completely
+ */
+public class NoopLogger implements Logger {
+
+  @Override
+  public void debug(String message) {
+
+  }
+
+  @Override
+  public void info(String message) {
+
+  }
+
+  @Override
+  public void warning(String message) {
+
+  }
+
+  @Override
+  public void error(String message) {
+
+  }
+}