Adding License info on every source file and LICENSE/NOTICE and README.md.

Author: rbpark

LICENSE

@@ -0,0 +1,202 @@
+                                 Apache License
+                           Version 2.0, January 2004
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+
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+

NOTICE

@@ -0,0 +1,50 @@
+   =========================================================================
+   ==  NOTICE file corresponding to the section 4d of                     ==
+   ==  the Apache License, Version 2.0                                    ==
+   =========================================================================
+
+This product includes the libraries
+	avro
+	commons-collections
+	commons-configuration
+	commons-email
+	commons-fileupload
+	commons-io
+	commons-lang
+	commons-logging
+	hadoop-core
+	httpclient
+	httpcore
+	log4j
+	pig
+	servlet-api
+	velocity
+  all of which are software developed by The Apache Software Foundation (http://www.apache.org/)
+
+This product includes Jackson, a JSON processor (http://jackson.codehaus.org/) under Apache License 2.0.
+
+This product includes EhCache, a Caching system by (http://http://ehcache.org/) under Apache License 2.0.
+
+This product includes guava, a core-library package by Google (http://code.google.com/p/guava-libraries/) under Apache License 2.0
+
+This product includes jetty, an embeddable http server developed by (http://jetty.codehaus.org/jetty/) under Apache License 2.0
+
+This product includes joda-time, a datetime package developed by (joda-time.sourceforge.net) under Apache License 2.0
+
+This product includes jopt-simple, a library for parsing command line options (http://pholser.github.com/jopt-simple/) under The MIT License.
+
+This product includes javax mail opensource, a email package (http://kenai.com/projects/javamail) under BSD 2-Clause License.
+
+This product includes slf4j, a logging package by (http://www.slf4j.org/) under MIT license
+
+This product includes voldemort, developed by project-voldemort.org under the Apache 2.0 License
+
+This project includes jquery, a javascript library (jquery.org) under the MIT license
+
+This project includes d3, a javascript visualization library (http://d3js.org/)) under the BSD license
+
+This product includes jquery simplemodal, a javascript library for modal dialogs by Eric Martin (http://www.ericmmartin.com/projects/simplemodal) under the MIT License
+
+This product includes underscore, a javascript library by Jeremy Ashkenas (http://underscorejs.org) under the MIT License
+
+This product includes underscore, a javascript mvc library by Jeremy Ashkenas (http://backbonejs.org) under the MIT License

README.md

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+Azkaban is simple batch scheduler for constructing and running Hadoop jobs or other offline processes.
+
+# What is that?
+
+A batch job scheduler can be seen as a combination of the unix utilities cron and make. Batch jobs need to be scheduled to run periodically. They also typically have intricate dependencies chains—for example dependencies on various data extraction processes or previous steps. Larger processes may have 50 or 60 steps, some of which may run in parallel and others of which must wait for one another. Combining all these processes into a single program will allow you to control the dependency management but lead to sprawling monolithic programs which are difficult to test or maintain. Simply scheduling the individual pieces to run at different times avoids the monolithic problem, but introduces many timing assumptions that are inevitably broken. [Azkaban](http://sna-projects.com/azkaban "Azkaban")
+ is a "workflow" scheduler that allows the pieces to be declaratively assembled into a single workflow and for that workflow to be scheduled to be run periodically.
+
+A good batch workflow system allows a program to be built out of small reusable pieces that need not know about one another. By declaring dependencies you can control sequencing. Other functionality available from [Azkaban](http://sna-projects.com/azkaban "Azkaban") can then be layered on top of the job--email notifications of success or failure, resource locking, retry on failure, log collection, historical job runtime information, and so on.
+
+# Why was it made?
+
+Schedulers are readily available (both open source and commercial), but tend to be extremely unfriendly to work with--they are basically bad GUI's grafted onto 20 year old command line clients. We wanted something that made it reasonably easy to visualize job hierarchies and run times without the pain. Previous experience made it clear that a good batch programming framework can make batch programming easy and successful in the same way that a web framework can aid web development beyond what you can do with an HTTP library and sockets.
+State of the project
+
+We have been using [Azkaban](http://sna-projects.com/azkaban "Azkaban") internally at [LinkedIn](http://www.linkedin.com "LinkedIn") for the last nine months or so, and have about a hundred jobs running in it, mostly hadoop jobs or ETL of some sort. [Azkaban](http://sna-projects.com/azkaban "Azkaban") is quite new as an open source project, though, and we are working now to generalize it enough to make it useful for everyone.
+
+Any patches, bug reports, or feature ideas are quite welcome. We have created a mailing list for this purpose.

src/java/azkaban/flow/FlowProps.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2012 LinkedIn, Inc
+ * 
+ * Licensed 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 azkaban.flow;
 
 import java.util.HashMap;

src/java/azkaban/flow/Node.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2012 LinkedIn, Inc
+ * 
+ * Licensed 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 azkaban.flow;
 
 import java.awt.geom.Point2D;

src/java/azkaban/fsviewers/HdfsAvroFileViewer.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2012 LinkedIn, Inc
+ * 
+ * Licensed 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 azkaban.fsviewers;
 
 import java.io.IOException;

src/java/azkaban/fsviewers/HdfsFileViewer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010 LinkedIn, Inc
+ * Copyright 2012 LinkedIn, Inc
  * 
  * Licensed 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

src/java/azkaban/fsviewers/HdfsSequenceFileViewer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010 LinkedIn, Inc
+ * Copyright 2012 LinkedIn, Inc
  * 
  * Licensed 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

src/java/azkaban/fsviewers/JsonSequenceFileViewer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010 LinkedIn, Inc
+ * Copyright 2012 LinkedIn, Inc
  * 
  * Licensed 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

src/java/azkaban/fsviewers/TextFileViewer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010 LinkedIn, Inc
+ * Copyright 2012 LinkedIn, Inc
  * 
  * Licensed 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