/**
* <a>Factory to hide a concrete, framework-specific implementation of logger creation.</a>
- *
- * <p>The service used by this factory must implement {@link LoggerCreationService}. If no implementation has been
- * configured or could not be instantiated, a <b>no-op logger</b> will be used, and <b>no events</b> will be logged.
- * This is done to prevent recursion if attempts are being made to log exceptions that resulted from logger
- * initialization.
- * </p>
+ * <p>The service used by this factory must implement {@link LoggerCreationService}. If no
+ * implementation has been configured or could not be instantiated, a <b>no-op logger</b> will be
+ * used, and <b>no events</b> will be logged. This is done to prevent recursion if attempts are
+ * being made to log exceptions that resulted from logger initialization. </p>
*
* @author evitaliy
- * @since 13/09/2016.
- *
* @see BaseFactory
* @see LoggerCreationService
+ * @since 13/09/2016.
*/
@SuppressWarnings("ThrowableInstanceNeverThrown")
public class LoggerFactory extends BaseFactory {
- private static final LoggerCreationService SERVICE;
-
- static {
- LoggerCreationService service;
+ private static final LoggerCreationService SERVICE;
- try {
- service = locateService(LoggerCreationService.class);
- } catch (Throwable e) {
- new RuntimeException("Failed to instantiate logger factory", e).printStackTrace();
- // use the no-op service to prevent recursion in case of an attempt to log an exception as a
- // result of a logger initialization error
- service = new NoOpLoggerCreationService();
- }
+ static {
+ LoggerCreationService service;
- SERVICE = service;
+ try {
+ service = locateService(LoggerCreationService.class);
+ } catch (Exception ex) {
+ new RuntimeException("Failed to instantiate logger factory", ex).printStackTrace();
+ // use the no-op service to prevent recursion in case of an attempt to log an exception as a
+ // result of a logger initialization error
+ service = new NoOpLoggerCreationService();
}
- public static Logger getLogger(String clazzName) {
- return SERVICE.getLogger(clazzName);
- }
-
- public static Logger getLogger(Class<?> clazz) {
- return SERVICE.getLogger(clazz);
- }
-
- private static class NoOpLoggerCreationService implements LoggerCreationService {
-
- private static final Logger NO_OP_LOGGER = new Logger() {
-
- @Override
- public String getName() {
- return "No-Op Logger";
- }
-
- @Override
- public boolean isMetricsEnabled() {
- return false;
- }
-
- @Override
- public void metrics(String msg) { }
+ SERVICE = service;
+ }
- @Override
- public void metrics(String msg, Object arg) { }
+ public static Logger getLogger(String clazzName) {
+ return SERVICE.getLogger(clazzName);
+ }
- @Override
- public void metrics(String msg, Object arg1, Object arg2) { }
+ public static Logger getLogger(Class<?> clazz) {
+ return SERVICE.getLogger(clazz);
+ }
- @Override
- public void metrics(String msg, Object... arguments) { }
+ private static class NoOpLoggerCreationService implements LoggerCreationService {
- @Override
- public void metrics(String msg, Throwable t) { }
+ private static final Logger NO_OP_LOGGER = new Logger() {
- @Override
- public boolean isAuditEnabled() {
- return false;
- }
+ @Override
+ public String getName() {
+ return "No-Op Logger";
+ }
- @Override
- public void audit(String msg) { }
+ @Override
+ public boolean isMetricsEnabled() {
+ return false;
+ }
- @Override
- public void audit(String msg, Object arg) { }
+ @Override
+ public void metrics(String msg) {
+ }
- @Override
- public void audit(String msg, Object arg1, Object arg2) { }
+ @Override
+ public void metrics(String msg, Object arg) {
+ }
- @Override
- public void audit(String msg, Object... arguments) { }
+ @Override
+ public void metrics(String msg, Object arg1, Object arg2) {
+ }
- @Override
- public void audit(String msg, Throwable t) { }
+ @Override
+ public void metrics(String msg, Object... arguments) {
+ }
- @Override
- public boolean isDebugEnabled() {
- return false;
- }
+ @Override
+ public void metrics(String msg, Throwable t) {
+ }
- @Override
- public void debug(String msg) { }
+ @Override
+ public boolean isAuditEnabled() {
+ return false;
+ }
- @Override
- public void debug(String msg, Object arg) { }
+ @Override
+ public void audit(String msg) {
+ }
- @Override
- public void debug(String msg, Object arg1, Object arg2) { }
+ @Override
+ public void audit(String msg, Object arg) {
+ }
- @Override
- public void debug(String msg, Object... arguments) { }
+ @Override
+ public void audit(String msg, Object arg1, Object arg2) {
+ }
- @Override
- public void debug(String msg, Throwable t) { }
+ @Override
+ public void audit(String msg, Object... arguments) {
+ }
- @Override
- public boolean isInfoEnabled() {
- return false;
- }
+ @Override
+ public void audit(String msg, Throwable t) {
+ }
- @Override
- public void info(String msg) { }
+ @Override
+ public boolean isDebugEnabled() {
+ return false;
+ }
- @Override
- public void info(String msg, Object arg) { }
+ @Override
+ public void debug(String msg) {
+ }
- @Override
- public void info(String msg, Object arg1, Object arg2) { }
+ @Override
+ public void debug(String msg, Object arg) {
+ }
- @Override
- public void info(String msg, Object... arguments) { }
+ @Override
+ public void debug(String msg, Object arg1, Object arg2) {
+ }
- @Override
- public void info(String msg, Throwable t) { }
+ @Override
+ public void debug(String msg, Object... arguments) {
+ }
- @Override
- public boolean isWarnEnabled() {
- return false;
- }
+ @Override
+ public void debug(String msg, Throwable t) {
+ }
- @Override
- public void warn(String msg) { }
+ @Override
+ public boolean isInfoEnabled() {
+ return false;
+ }
- @Override
- public void warn(String msg, Object arg) { }
-
- @Override
- public void warn(String msg, Object... arguments) { }
-
- @Override
- public void warn(String msg, Object arg1, Object arg2) { }
-
- @Override
- public void warn(String msg, Throwable t) { }
-
- @Override
- public boolean isErrorEnabled() {
- return false;
- }
-
- @Override
- public void error(String msg) { }
-
- @Override
- public void error(String msg, Object arg) { }
-
- @Override
- public void error(String msg, Object arg1, Object arg2) { }
-
- @Override
- public void error(String msg, Object... arguments) { }
-
- @Override
- public void error(String msg, Throwable t) { }
- };
-
- @Override
- public Logger getLogger(String className) {
- return NO_OP_LOGGER;
- }
+ @Override
+ public void info(String msg) {
+ }
+
+ @Override
+ public void info(String msg, Object arg) {
+ }
+
+ @Override
+ public void info(String msg, Object arg1, Object arg2) {
+ }
+
+ @Override
+ public void info(String msg, Object... arguments) {
+ }
+
+ @Override
+ public void info(String msg, Throwable t) {
+ }
+
+ @Override
+ public boolean isWarnEnabled() {
+ return false;
+ }
+
+ @Override
+ public void warn(String msg) {
+ }
+
+ @Override
+ public void warn(String msg, Object arg) {
+ }
+
+ @Override
+ public void warn(String msg, Object... arguments) {
+ }
+
+ @Override
+ public void warn(String msg, Object arg1, Object arg2) {
+ }
+
+ @Override
+ public void warn(String msg, Throwable t) {
+ }
+
+ @Override
+ public boolean isErrorEnabled() {
+ return false;
+ }
+
+ @Override
+ public void error(String msg) {
+ }
+
+ @Override
+ public void error(String msg, Object arg) {
+ }
+
+ @Override
+ public void error(String msg, Object arg1, Object arg2) {
+ }
+
+ @Override
+ public void error(String msg, Object... arguments) {
+ }
+
+ @Override
+ public void error(String msg, Throwable t) {
+ }
+ };
+
+ @Override
+ public Logger getLogger(String className) {
+ return NO_OP_LOGGER;
+ }
- @Override
- public Logger getLogger(Class<?> clazz) {
- return NO_OP_LOGGER;
- }
+ @Override
+ public Logger getLogger(Class<?> clazz) {
+ return NO_OP_LOGGER;
}
+ }
}
Code Review / sdc.git / blobdiff