Workflow Generator Tool ========================= ----------------------------------------------- What is Workflow Generator Tool ----------------------------------------------- Workflow generator tool is a web application where a user can construct Oozie workflow through GUI. Since it is based on html and javascript, a user needs only browser to access the tool. (major browsers such as Chrome, Firefox, IE supported) It is developed using Google Web Toolkit ( https://developers.google.com/web-toolkit/ ), which provides functionality to compile java code into javascript. Therefore, although final product is in javascript, development process is performed in java. ------------------------------------------------------------------------------------- How to build and launch Workflow Generator Tool as part of entire oozie package build ------------------------------------------------------------------------------------- 1. run mkdistro.sh on top-level directory --------------------- bin/mkdistro.sh -P wfgen --------------------- [NOTE] currently workflow generator is not included in build as default, thus need to specify maven profile (-P wfgen) 2. move to output directory -------------------- cd distro/target/oozie--distro/oozie- -------------------- 3-(a). copy the war file to oozie-server/webapps/ -------------------- cp oozie-wfgen.war ./oozie-server/webapps -------------------- or 3-(b). create /libext and copy the war file to it -------------------- mkdir libext cp oozie-wfgen.war ./libext -------------------- [NOTE] bin/oozie-setup.sh is implemented such that wfgen.war is automatically picked up and deployed to oozie server 4. start oozie server (using bin/oozie-setup.sh and bin/oozie-start.sh) and check through browser --------------------- http://localhost:11000/oozie-wfgen --------------------- [NOTE] using default port number, which is 11000. tomcat server may fail to start if other application already using the same port. please make sure the port is not used. ---------------------------------------------------------------------------------------- How to build and launch Workflow Generator Tool only (not whole package build) ---------------------------------------------------------------------------------------- There are two possible options Option-A) launch app using web server that you are already running (without using bundled tomcat) Option-B) launch app in dev mode using bundled internal web server provided by GWT. Option-A would be suitable when you want to host this application on the existing tomcat instance. You need to copy war file into webapp directory of existing tomcat. Option-B would be suitable for development of the tool since you can see error messages for debugging, and don't need to create and copy war file every time Option-B internally using java class (servlet), not javascript. On browser UI, therefore, DOM operation (e.g., creating/deleting nodewidget) might be slower than using pure javascript (Option-A) =============================================== 1. build workflowgenerator and create war file --------------------- cd workflowgenerator // assuming you are on top directory mvn clean package --------------------- [NOTE] test case not implemented yet 2. copy war file to webapps directory of web server --------------------- cp target/oozie-wfgen.war /webapps/ --------------------- 3. start web server --------------------- /bin/startup.sh --------------------- [NOTE] name of start script might be different in your web-server, please change accordingly 4. check through browser --------------------- http://localhost:8080/oozie-wfgen --------------------- [NOTE] port number might not be 8080 in your web-server setting (usually it's default in tomcat), please change accordingly 5. stop web server --------------------- /bin/shutdown.sh --------------------- [NOTE] name of shutdown script might be different in your web-server, please change accordingly =============================================== 1. compile and start GWT launcher --------------------- cd workflowgenerator // assuming you are on top directory mvn clean gwt:run --------------------- you will see GWT launcher program automatically starts 2. launch app on browser from GWT launcher --------------------- press button either "Launch Default Browser" or "Copy to Clipboard" "Launcher Default Browser" --> automatically open application on default browser --> First time, you will be asked to install plug-in on browser, (also take few mins to launch app, pls be patient) "Copy to Clipboard" --> you can copy this link to browser that you like and open it --> First time, you will be asked to install plug-in on browser (also take few mins to launch app, pls be patient) --------------------- if you want to kill process, Ctrl-C in console ===================================================================== If you have any questions/issues, please send an email to: user@oozie.apache.org Subscribe using the link: http://oozie.apache.org/mail-lists.html