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authorgregor <gregor@d688527b-c9ab-4aba-bd8d-4036d912da1d>2003-07-07 10:58:37 +0000
committergregor <gregor@d688527b-c9ab-4aba-bd8d-4036d912da1d>2003-07-07 10:58:37 +0000
commitece7d18cf35374bf4e26d041799cda8f791c89f8 (patch)
tree33707cb77627b65a2a4e7327a2e93fb7751c1b76 /common/src/at/gv/egovernment/moa/logging/Logger.java
parent273aed93c03b18a6c6bb1af745ae46a13ad3c7f2 (diff)
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Initial commit
git-svn-id: https://joinup.ec.europa.eu/svn/moa-idspss/trunk@2 d688527b-c9ab-4aba-bd8d-4036d912da1d
Diffstat (limited to 'common/src/at/gv/egovernment/moa/logging/Logger.java')
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diff --git a/common/src/at/gv/egovernment/moa/logging/Logger.java b/common/src/at/gv/egovernment/moa/logging/Logger.java
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+package at.gv.egovernment.moa.logging;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+/**
+ * A utility class acting as a facade to the logging subsystem.
+ *
+ * Configure the logging defaultHierarchy that the <code>Logger</code> uses by
+ * calling <code>setHierarchy</code> once before calling any of the logging
+ * output functions.
+ *
+ * @author Patrick Peck
+ * @version $Id$
+ */
+public class Logger {
+
+ /** The default logging hierarchy. */
+ private static String defaultHierarchy = "";
+
+ /**
+ * Get the <code>Log</code> object for the default hierarchy.
+ *
+ * @return The <code>Log</code> object to write log messages to.
+ */
+ private static Log getLog() {
+ return LogFactory.getLog(defaultHierarchy);
+ }
+
+ /**
+ * Get the <code>Log</code> object for a given hierarchy.
+ *
+ * @param hierarchy The logging hierarchy for which to return the logger.
+ * @return The <code>Log</code> object to write log messages to.
+ */
+ private static Log getLog(String hierarchy) {
+ return LogFactory.getLog(hierarchy);
+ }
+
+ /**
+ * Set the default hierarchy to which the <code>Logger</code> should send its
+ * logging output.
+ * @param hierarchy The logging defaultHierarchy.
+ */
+ public static void setHierarchy(String hierarchy) {
+ defaultHierarchy = hierarchy;
+ }
+
+ /**
+ * Test, if the trace log level is enabled.
+ *
+ * @return boolean <code>true</code>, if tracing output is enabled
+ * <code>false</code> otherwise.
+ */
+ public static boolean isTraceEnabled() {
+ return getLog().isTraceEnabled();
+ }
+
+ /**
+ * Test, if the trace log level is enabled for a given hierarchy.
+ *
+ * @param hierarchy requested log hierarchy
+ * @return boolean <code>true</code>, if tracing output is enabled
+ * <code>false</code> otherwise.
+ */
+ public static boolean isTraceEnabled(String hierarchy) {
+ return getLog(hierarchy).isTraceEnabled();
+ }
+
+ /**
+ * Trace a message.
+ *
+ * @param message The message to trace.
+ */
+ public static void trace(Object message) {
+ getLog().trace(message);
+ }
+
+ /**
+ * Test, if the debug log level is enabled.
+ *
+ * @return boolean <code>true</code>, if debug output is enabled
+ * <code>false</code> otherwise.
+ */
+ public static boolean isDebugEnabled() {
+ return getLog().isDebugEnabled();
+ }
+
+ /**
+ * Test, if the debug log level is enabled for a given hierarchy.
+ *
+ * @param hierarchy requested log hierarchy
+ * @return boolean <code>true</code>, if debug output is enabled
+ * <code>false</code> otherwise.
+ */
+ public static boolean isDebugEnabled(String hierarchy) {
+ return getLog(hierarchy).isDebugEnabled();
+ }
+
+ /**
+ * Log a debug message.
+ *
+ * @param message The message to log.
+ */
+ public static void debug(Object message) {
+ getLog().debug(message);
+ }
+
+ /**
+ * Log an info message.
+ *
+ * @param message The message to log.
+ */
+ public static void info(Object message) {
+ getLog().info(message);
+ }
+
+ /**
+ * Log a warning message.
+ *
+ * @param message The message to log.
+ */
+ public static void warn(Object message) {
+ getLog().warn(message);
+ }
+
+ /**
+ * Log a warning message.
+ *
+ * @param message The message to log.
+ * @param t An exception that may be the cause of the warning.
+ */
+ public static void warn(Object message, Throwable t) {
+ getLog().warn(message, t);
+ }
+
+ /**
+ * Log an error message.
+ *
+ * @param message The message to log.
+ */
+ public static void error(Object message) {
+ getLog().error(message);
+ }
+
+ /**
+ * Log an error message.
+ *
+ * @param message The message to log.
+ * @param t An exception that may be the cause of the error.
+ */
+ public static void error(Object message, Throwable t) {
+ getLog().error(message, t);
+ }
+
+ /**
+ * Log a fatal error message.
+ *
+ * @param message The message to log.
+ */
+ public static void fatal(Object message) {
+ getLog().fatal(message);
+ }
+
+ /**
+ * Log a fatal error message.
+ *
+ * @param message The message to log.
+ * @param t An exception that may be the cause of the error.
+ */
+ public static void fatal(Object message, Throwable t) {
+ getLog().fatal(message, t);
+ }
+
+}