first commit

hrmsEjb/common/Logger.java

@@ -0,0 +1,63 @@
+package common;
+
+import common.log.LoggerName;
+import common.log.SimpleLogger;
+import java.security.AccessControlException;
+
+public abstract class Logger {
+  private static Logger logger = null;
+  
+  public static final Logger getLogger(Class cl) {
+    if (logger == null)
+      initializeLogger(); 
+    return logger.getLoggerImpl(cl);
+  }
+  
+  private static synchronized void initializeLogger() {
+    if (logger != null)
+      return; 
+    String loggerName = LoggerName.NAME;
+    try {
+      loggerName = System.getProperty("logger");
+      if (loggerName == null)
+        loggerName = LoggerName.NAME; 
+      logger = (Logger)Class.forName(loggerName).newInstance();
+    } catch (IllegalAccessException e) {
+      logger = (Logger)new SimpleLogger();
+      logger.warn("Could not instantiate logger " + loggerName + " using default");
+    } catch (InstantiationException e) {
+      logger = (Logger)new SimpleLogger();
+      logger.warn("Could not instantiate logger " + loggerName + " using default");
+    } catch (AccessControlException e) {
+      logger = (Logger)new SimpleLogger();
+      logger.warn("Could not instantiate logger " + loggerName + " using default");
+    } catch (ClassNotFoundException e) {
+      logger = (Logger)new SimpleLogger();
+      logger.warn("Could not instantiate logger " + loggerName + " using default");
+    } 
+  }
+  
+  public abstract void debug(Object paramObject);
+  
+  public abstract void debug(Object paramObject, Throwable paramThrowable);
+  
+  public abstract void error(Object paramObject);
+  
+  public abstract void error(Object paramObject, Throwable paramThrowable);
+  
+  public abstract void fatal(Object paramObject);
+  
+  public abstract void fatal(Object paramObject, Throwable paramThrowable);
+  
+  public abstract void info(Object paramObject);
+  
+  public abstract void info(Object paramObject, Throwable paramThrowable);
+  
+  public abstract void warn(Object paramObject);
+  
+  public abstract void warn(Object paramObject, Throwable paramThrowable);
+  
+  protected abstract Logger getLoggerImpl(Class paramClass);
+  
+  public void setSuppressWarnings(boolean w) {}
+}