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diff --git a/srcjar_unused/org/apache/log4j/varia/FallbackErrorHandler.java b/srcjar_unused/org/apache/log4j/varia/FallbackErrorHandler.java
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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.log4j.varia;
+
+import org.apache.log4j.spi.ErrorHandler;
+import org.apache.log4j.spi.LoggingEvent;
+import org.apache.log4j.Appender;
+import org.apache.log4j.Logger;
+import org.apache.log4j.helpers.LogLog;
+import java.util.Vector;
+import java.io.InterruptedIOException;
+
+/**
+ *
+ * The FallbackErrorHandler
implements the ErrorHandler
+ * interface such that a secondary appender may be specified. This
+ * secondary appender takes over if the primary appender fails for
+ * whatever reason.
+ *
+ *
The error message is printed on System.err
, and
+ * logged in the new secondary appender.
+ *
+ * @author Ceki Gücü
+ * */
+public class FallbackErrorHandler implements ErrorHandler {
+
+
+ Appender backup;
+ Appender primary;
+ Vector loggers;
+
+ public FallbackErrorHandler() {
+ }
+
+
+ /**
+ Adds the logger passed as parameter to the list of
+ loggers that we need to search for in case of appender failure.
+ */
+ public
+ void setLogger(Logger logger) {
+ LogLog.debug("FB: Adding logger [" + logger.getName() + "].");
+ if(loggers == null) {
+ loggers = new Vector();
+ }
+ loggers.addElement(logger);
+ }
+
+
+ /**
+ No options to activate.
+ */
+ public
+ void activateOptions() {
+ }
+
+
+ /**
+ Prints the message and the stack trace of the exception on
+ System.err
. */
+ public
+ void error(String message, Exception e, int errorCode) {
+ error(message, e, errorCode, null);
+ }
+
+ /**
+ Prints the message and the stack trace of the exception on
+ System.err
.
+ */
+ public
+ void error(String message, Exception e, int errorCode, LoggingEvent event) {
+ if (e instanceof InterruptedIOException) {
+ Thread.currentThread().interrupt();
+ }
+ LogLog.debug("FB: The following error reported: " + message, e);
+ LogLog.debug("FB: INITIATING FALLBACK PROCEDURE.");
+ if (loggers != null) {
+ for(int i = 0; i < loggers.size(); i++) {
+ Logger l = (Logger) loggers.elementAt(i);
+ LogLog.debug("FB: Searching for ["+primary.getName()+"] in logger ["
+ +l.getName() + "].");
+ LogLog.debug("FB: Replacing ["+primary.getName()+"] by ["
+ + backup.getName() + "] in logger ["+ l.getName() +"].");
+ l.removeAppender(primary);
+ LogLog.debug("FB: Adding appender ["+backup.getName()+"] to logger "
+ + l.getName());
+ l.addAppender(backup);
+ }
+ }
+ }
+
+
+ /**
+ Print a the error message passed as parameter on
+ System.err
.
+ */
+ public
+ void error(String message) {
+ //if(firstTime) {
+ //LogLog.error(message);
+ //firstTime = false;
+ //}
+ }
+
+ /**
+ The appender to which this error handler is attached.
+ */
+ public
+ void setAppender(Appender primary) {
+ LogLog.debug("FB: Setting primary appender to [" + primary.getName() + "].");
+ this.primary = primary;
+ }
+
+ /**
+ Set the backup appender.
+ */
+ public
+ void setBackupAppender(Appender backup) {
+ LogLog.debug("FB: Setting backup appender to [" + backup.getName() + "].");
+ this.backup = backup;
+ }
+
+}