# Sample Java class for creating a command line interface to control Wowza Media Server **URL:** \ **Category:** Wowza Developer Dojo\ **Tags:** wowza-streaming-server-java-api\ **Created:** [June 21, 2011, 11:49am UTC](https://community.wowza.com/t/sample-java-class-for-creating-a-command-line-interface-to-control-wowza-media-server/34950 "2011-06-21T11:49:32Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![shekar\_KCB](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@shekar\_KCB](https://community.wowza.com/u/shekar_KCB)\ **Post date:** [June 21, 2011, 11:49am UTC](https://community.wowza.com/t/sample-java-class-for-creating-a-command-line-interface-to-control-wowza-media-server/34950/1 "2011-06-21T11:49:32Z")
My system is Linux, and java is in ```auto /usr/lib64/jvm/java/bin ``` i copied [this code](https://www.wowza.com/docs/how-to-set-up-a-command-line-interface-to-wowza-api)an pasted to a file called JMXCommandLine.java. Then i run this command ```auto javac JMXCommandLine.java ``` it didn’t gave any errors. It created .class file. ```auto linux-l6al:/usr/lib64/jvm/java/bin # ls -lrt | tail -rwxr-xr-x 1 root root 51619 Apr 13 2010 extcheck -rwxr-xr-x 1 root root 51872 Apr 13 2010 apt -rwxr-xr-x 1 root root 51987 Apr 13 2010 appletviewer -rwxr-xr-x 1 root root 6347 Apr 13 2010 jcontrol -rwxr-xr-x 1 root root 92954 Apr 13 2010 javaws -rwxr-xr-x 1 root root 96 Jul 6 2010 HtmlConverter lrwxrwxrwx 1 root root 8 Apr 18 19:31 ControlPanel -> jcontrol -rw-r--r-- 1 root root 18099 Jun 21 11:29 JMXCommandLine.java -rw-r--r-- 1 root root 1505 Jun 21 11:29 JMXCommandLine$AppConextName.class -rw-r--r-- 1 root root 11441 Jun 21 11:29 JMXCommandLine.class linux-l6al:/usr/lib64/jvm/java/bin # ``` When i run for usage help it showed me this. ```auto linux-l6al:/usr/lib64/jvm/java/bin # java -cp . JMXCommandLine $@ Usage: [command] -[switch [value]...] [command] [params...] Switches: -jmx [jmx-url] -user [jmx-username] -pass [jmx-password] Commands: getServerVersion startVHost [vhost] stopVHost [vhost] reloadVHostConfig startAppInstance [vhost:application/appInstance] touchAppInstance [vhost:application/appInstance] shutdownAppInstance [vhost:application/appInstance] startMediaCasterStream [vhost:application/appInstance] [stream-name] [mediacaster-type] stopMediaCasterStream [vhost:application/appInstance] [stream-name] resetMediaCasterStream [vhost:application/appInstance] [stream-name] getConnectionCounts getConnectionCounts [vhost:application/appInstance] getConnectionCounts [vhost:application/appInstance] [stream-name] getIOOutByteRate getIOOutByteRate [vhost:application/appInstance] getIOInByteRate getIOInByteRate [vhost:application/appInstance] linux-l6al:/usr/lib64/jvm/java/bin # ``` Now when i am executing with options it gave this error. ```auto linux-l6al:/usr/lib64/jvm/java/bin # java -cp . JMXCommandLine -user admin -pass password getServerVersion ERROR: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: java.net.ConnectException: Connection refused] linux-l6al:/usr/lib64/jvm/java/bin # linux-l6al:/usr/lib64/jvm/java/bin # linux-l6al:/usr/lib64/jvm/java/bin # java -cp . JMXCommandLine getServerVersion ERROR: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: java.net.ConnectException: Connection refused] linux-l6al:/usr/lib64/jvm/java/bin # ``` As i am not of programing background, What this errors are corresponds to ? All i need is a way to start and stop the streams using command line tool… And if my URL is ```auto rtmp://192.168.1.123:1935/testlive/testlive.stream ``` , whet should be the correct sequence to start stop stream using this app. Thanks, Shekar ---
**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\ **Post date:** [June 21, 2011, 2:51pm UTC](https://community.wowza.com/t/sample-java-class-for-creating-a-command-line-interface-to-control-wowza-media-server/34950/2 "2011-06-21T14:51:23Z")
Shekar, Make sure Wowza is running. Make sure /conf/Server.xml /JMXRemoteConfiguration /Enable is set to “true” Make sure you /conf/jmxremote.access and jmxremote.password have user “admin” and password “admin” with readwrite privileges. Richard ---
**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\ **Post date:** [June 27, 2011, 2:42pm UTC](https://community.wowza.com/t/sample-java-class-for-creating-a-command-line-interface-to-control-wowza-media-server/34950/3 "2011-06-27T14:42:23Z")
The example in the guide is: ```auto to start stream: jmxcl [jmx-connection-switches] touchAppInstance live jmxcl [jmx-connection-switches] startMediaCasterStream live myStream.sdp rtp ``` Not sure where you are going after that. Richard ---
**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\ **Post date:** [June 28, 2011, 12:34pm UTC](https://community.wowza.com/t/sample-java-class-for-creating-a-command-line-interface-to-control-wowza-media-server/34950/4 "2011-06-28T12:34:44Z")
Shekar, I haven’t used this method very much, but I think the way to discover the commands and parameters is look at JConsole and find the Operations screens. [https://www.wowza.com/docs/quick-start-guides](https://www.wowza.com/docs/quick-start-guides) Richard ---
**Author:** ![shekar\_KCB](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@shekar\_KCB](https://community.wowza.com/u/shekar_KCB)\ **Post date:** [June 27, 2011, 4:06pm UTC](https://community.wowza.com/t/sample-java-class-for-creating-a-command-line-interface-to-control-wowza-media-server/34950/5 "2011-06-27T16:06:28Z")
Thanks for the reply Richard. Glad now i can make this working ( getServerViersion method is working it is showing me ```auto Wowza Media Server 2 Subscription 2.2.4 build27452 ``` hope its latest… ) Now how do i start/stop the stream? when i tried i get this error. ```auto linux-l6al:/etc/alternatives/java_sdk/bin # java -cp . JMXCommandLine -user admin -pass admin startMediaCasterStream testlive testlive.stream rtp startMediaCasterStream testlive testlive.stream rtp ERROR: doInvoke: javax.management.InstanceNotFoundException: WowzaMediaServerPro:vHosts=VHosts,vHostName=_defaultVHost_,applications=Applications,applicationName=testlive,applicationInstances=ApplicationInstances,applicationInstanceName=_definst_,name=ApplicationInstance linux-l6al:/etc/alternatives/java_sdk/bin # ``` But i can play the url ```auto rtmp://localhost:1935/testlive/testlive.stream ``` Any idea? Actually i wanted to use “liverepeater-record” method in origin (for vod kind of streaming), and record the particular incoming stream every hrs, and the use the smil to stream them separately… which method is suitable ? is it ```auto startAppInstance OR startMediaCasterStream ? ``` as everything stream started/stoped it creates an mp4 file … Thanks. ---
**Author:** ![shekar\_KCB](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@shekar\_KCB](https://community.wowza.com/u/shekar_KCB)\ **Post date:** [June 28, 2011, 11:17am UTC](https://community.wowza.com/t/sample-java-class-for-creating-a-command-line-interface-to-control-wowza-media-server/34950/6 "2011-06-28T11:17:51Z")
How do i find out which is the correct format? Can the guy who developed reply for this? Thanks, Shekar