BUG-1051: logback configuration loader proposal

[controller.git] / opendaylight / config / logback-config-loader / src / main / java / org / opendaylight / controller / logback / config / loader / Activator.java

diff --git a/opendaylight/config/logback-config-loader/src/main/java/org/opendaylight/controller/logback/config/loader/Activator.java b/opendaylight/config/logback-config-loader/src/main/java/org/opendaylight/controller/logback/config/loader/Activator.java
new file mode 100644 (file)
index 0000000..99866d5
--- /dev/null
+++ b/opendaylight/config/logback-config-loader/src/main/java/org/opendaylight/controller/logback/config/loader/Activator.java
@@ -0,0 +1,50 @@
+/**
+ * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.logback.config.loader;
+
+import java.io.File;
+import java.util.List;
+
+import org.opendaylight.controller.logback.config.loader.impl.LogbackConfigUtil;
+import org.opendaylight.controller.logback.config.loader.impl.LogbackConfigurationLoader;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * default activator for loading multiple logback configuration files
+ */
+public class Activator implements BundleActivator {
+
+    /**
+     * expected environment variable name, containing the root folder containing
+     * logback configurations
+     */
+    private static final String LOGBACK_CONFIG_D = "logback.config.d";
+    private static Logger LOG = LoggerFactory.getLogger(Activator.class);
+
+    @Override
+    public void start(BundleContext context) {
+        LOG.info("Starting logback configuration loader");
+        String logbackConfigRoot = System.getProperty(LOGBACK_CONFIG_D);
+        LOG.debug("configRoot: {}", logbackConfigRoot);
+        if (logbackConfigRoot != null) {
+            File logbackConfigRootFile = new File(logbackConfigRoot);
+            List<File> sortedConfigFiles = LogbackConfigUtil.harvestSortedConfigFiles(logbackConfigRootFile);
+            LogbackConfigurationLoader.load(true, sortedConfigFiles.toArray());
+        }
+    }
+
+    @Override
+    public void stop(BundleContext context) {
+        LOG.info("Stopping logback configuration loader");
+        // TODO: need reset/reload default config?
+    }
+
+}