added ignore to Logger interface

git-svn-id: svn+ssh://dev.eclipse.org/svnroot/rt/org.eclipse.jetty/jetty/trunk@2104 7e9141cc-0065-0410-87d8-b60c137991c4

jetty-util/src/main/java/org/eclipse/jetty/util/log/JavaUtilLog.java

@@ -114,6 +114,14 @@ public class JavaUtilLog implements Logger
         return new JavaUtilLog(name);
     }
 
+    public void ignore(Throwable ignored)
+    {
+        if (Log.isIgnored())
+        {
+            warn(Log.IGNORED, ignored);
+        }
+    }
+
     private String format(String msg, Object... args)
     {
         msg = String.valueOf(msg); // Avoids NPE

jetty-util/src/main/java/org/eclipse/jetty/util/log/Log.java

@@ -116,6 +116,10 @@ public class Log
         return __log;
     }
 
+    static boolean isIgnored()
+    {
+        return __ignored;
+    }
 
     /**
      * Set Log to parent Logger.

jetty-util/src/main/java/org/eclipse/jetty/util/log/Logger.java

@@ -99,4 +99,10 @@ public interface Logger
      * @return a logger with the given name
      */
     public Logger getLogger(String name);
+    
+    /**
+     * Ignore an exception.
+     * <p>This should be used rather than an empty catch block.
+     */
+    public void ignore(Throwable ignored); 
 }

jetty-util/src/main/java/org/eclipse/jetty/util/log/LoggerLog.java

@@ -181,6 +181,14 @@ public class LoggerLog implements Logger
         }
     }
 
+    public void ignore(Throwable ignored)
+    {
+        if (Log.isIgnored())
+        {
+            warn(Log.IGNORED, ignored);
+        }
+    }
+
     public Logger getLogger(String name)
     {
         try

jetty-util/src/main/java/org/eclipse/jetty/util/log/Slf4jLog.java

@@ -95,6 +95,14 @@ public class Slf4jLog implements Logger
         return new Slf4jLog(name);
     }
 
+    public void ignore(Throwable ignored)
+    {
+        if (Log.isIgnored())
+        {
+            warn(Log.IGNORED, ignored);
+        }
+    }
+
     @Override
     public String toString()
     {

jetty-util/src/main/java/org/eclipse/jetty/util/log/StdErrLog.java

@@ -325,4 +325,12 @@ public class StdErrLog implements Logger
     {
         return "StdErrLog:" + _name + ":DEBUG=" + _debug;
     }
+
+    public void ignore(Throwable ignored)
+    {
+        if (Log.isIgnored())
+        {
+            warn(Log.IGNORED, ignored);
+        }
+    }
 }