Add utility methods for logging

diff --git a/src/main/scala/gr/grnet/aquarium/util/LogHelpers.scala b/src/main/scala/gr/grnet/aquarium/util/LogHelpers.scala
new file mode 100644 (file)
index 0000000..b70b3cd
--- /dev/null
+++ b/src/main/scala/gr/grnet/aquarium/util/LogHelpers.scala
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2011-2012 GRNET S.A. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and
+ * documentation are those of the authors and should not be
+ * interpreted as representing official policies, either expressed
+ * or implied, of GRNET S.A.
+ */
+
+package gr.grnet.aquarium.util
+
+import date.TimeHelpers
+import org.slf4j.Logger
+
+/**
+ *
+ * @author Christos KK Loverdos <loverdos@gmail.com>
+ */
+
+object LogHelpers {
+  def logStarting(logger: Logger): Unit = {
+    logger.debug("Starting ...")
+  }
+
+  def logStarting(logger: Logger, fmt: String, args: Any*): Unit = {
+    logger.debug("Starting %s ...".format(fmt.format(args: _*)))
+  }
+
+  def logStarted(logger: Logger, ms0: Long, ms1: Long): Unit = {
+    logger.info("Started in %.3f sec".format(TimeHelpers.secDiffOfMillis(ms0, ms1)))
+  }
+
+  def logStopping(logger: Logger): Unit = {
+    logger.debug("Stopping ...")
+  }
+
+  def logStopped(logger: Logger, ms0: Long, ms1: Long): Unit = {
+    logger.info("Stopped in %.3f sec".format(TimeHelpers.secDiffOfMillis(ms0, ms1)))
+  }
+}