[5/9] hbase git commit: HBASE-16061 Allow logging to a buffered console

[ap...@apache.org]

HBASE-16061 Allow logging to a buffered console


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/ce13b595
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/ce13b595
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/ce13b595

Branch: refs/heads/0.98
Commit: ce13b5953b27fae8a16cf6293e95d2e88c96b8bc
Parents: e18daa0
Author: Elliott Clark <ec...@apache.org>
Authored: Fri Jun 17 16:32:57 2016 -0700
Committer: Andrew Purtell <ap...@apache.org>
Committed: Fri Jun 24 11:13:49 2016 -0700

----------------------------------------------------------------------
 conf/log4j.properties                           |  5 +-
 .../hadoop/hbase/AsyncConsoleAppender.java      | 48 ++++++++++++++++++++
 2 files changed, 52 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/ce13b595/conf/log4j.properties
----------------------------------------------------------------------
diff --git a/conf/log4j.properties b/conf/log4j.properties
index 1d7656b..6248a1b 100644
--- a/conf/log4j.properties
+++ b/conf/log4j.properties
@@ -80,13 +80,16 @@ log4j.appender.NullAppender=org.apache.log4j.varia.NullAppender
 
 #
 # console
-# Add "console" to rootlogger above if you want to use this 
+# Add "console" to rootlogger above if you want to use this
 #
 log4j.appender.console=org.apache.log4j.ConsoleAppender
 log4j.appender.console.target=System.err
 log4j.appender.console.layout=org.apache.log4j.PatternLayout
 log4j.appender.console.layout.ConversionPattern=%d{ISO8601} %-5p [%t] %c{2}: %m%n
 
+log4j.appender.asyncconsole=org.apache.hadoop.hbase.AsyncConsoleAppender
+log4j.appender.asyncconsole.target=System.err
+
 # Custom Logging levels
 
 log4j.logger.org.apache.zookeeper=INFO

http://git-wip-us.apache.org/repos/asf/hbase/blob/ce13b595/hbase-common/src/main/java/org/apache/hadoop/hbase/AsyncConsoleAppender.java
----------------------------------------------------------------------
diff --git a/hbase-common/src/main/java/org/apache/hadoop/hbase/AsyncConsoleAppender.java b/hbase-common/src/main/java/org/apache/hadoop/hbase/AsyncConsoleAppender.java
new file mode 100644
index 0000000..338265d
--- /dev/null
+++ b/hbase-common/src/main/java/org/apache/hadoop/hbase/AsyncConsoleAppender.java
@@ -0,0 +1,48 @@
+/**
+ * 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.hadoop.hbase;
+
+import org.apache.hadoop.hbase.classification.InterfaceAudience;
+import org.apache.log4j.AsyncAppender;
+import org.apache.log4j.ConsoleAppender;
+import org.apache.log4j.PatternLayout;
+
+/**
+ * Logger class that buffers before trying to log to the specified console.
+ */
+@InterfaceAudience.Private
+public class AsyncConsoleAppender extends AsyncAppender {
+  private final ConsoleAppender consoleAppender;
+
+  public AsyncConsoleAppender() {
+    super();
+    consoleAppender = new ConsoleAppender(new PatternLayout(
+        "%d{ISO8601} %-5p [%t] %c{2}: %m%n"));
+    this.addAppender(consoleAppender);
+  }
+
+  public void setTarget(String value) {
+    consoleAppender.setTarget(value);
+  }
+
+  public void activateOptions() {
+    consoleAppender.activateOptions();
+    super.activateOptions();
+  }
+
+}