groups = {}
groups["dev"] = ["123.456.78.90:1001", "321.654.87.09:10292"]
groups["other"] = ["345.657.432.12:12345", "987.123.456.43:9090"]

def changeServerAppLogLevel(app, logger, level, serverUrl):
 
    ## connect to the server
    connect("weblogic", "weblogic", url=serverUrl)
 
    ## go to the custom MBean tree 
    custom()
 
    ## go to the place where our app log level mbeans are stored. 
    cd('com.theserverlabs.jmx/com.theserverlabs.jmx:type=ApplicationLogManager,name=' + app + 'LogManager')
 
    ## horrible code necessary to invoke a Java method that changes the log level
    args = jarray.array([java.lang.String(logger), java.lang.String(level)],java.lang.Object)
    sig = jarray.array(['java.lang.String', 'java.lang.String'],java.lang.String)
    print 'changing log level to ' + level + ' for app ' + app + ' on server ' + serverUrl
    invoke('setLogLevel',args,sig)
 
    print '  ... done. New log levels are:'
    print(get('LogLevels'))
 
# "main method" of the python script
argslength = len(sys.argv)
 
if argslength < 4 :
 
    print '==>Insufficient arguments'
    print '==>Syntax: changeAppLogLevel.py [SERVER] [APP NAME] [LOGGER] [LEVEL]'
    print '==> where: SERVER=host and port of the server'
    print '==>        APP NAME=context root of the app e.g. xxx for /xxx'
    print '==>        LOGGER=log4j logger name'
    print '==>        LEVEL=TRACE/DEBUG/WARN/INFO/ERROR/FATAL'
    print '==>   e.g: changeAppLogLevel.py xxx com.theserverlabs.blog.logging DEBUG'
    exit()
 
else:
 
    app = sys.argv[1]
    logger = sys.argv[2]
    level = sys.argv[3]
    server = sys.argv[4]
    # change the log level for the server. if there was more than one server
    # in the cluster, you could add multiple calls here, each with a different 
    # server URL
    if server in groups:
        for server_address in groups[server]
            changeServerAppLogLevel(app, logger, level, server_address)
    else:
        changeServerAppLogLevel(app, logger, level, server)
    exit()