#!/usr/bin/env python
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# to you under the Apache License, Version 2.0 (the
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import os
import sys

from ducc_util  import DuccUtil

class DuccVaryOff(DuccUtil):

    def usage(self, msg):
        if ( msg != None ):
            print msg

        print 'vary_on list-of-nodes'
        print '    This marks the nodes named in the list online for scheduling purposes.'
        print '    The nodes must have been previously online and/or configured in a nodellist'
        print '    at boot time.'
        print ''
        print 'Example:'
        print '   vary_on node1 node2 node3'    
    
    def main(self, nodes):

        if ( len(nodes) == 0 ):
            self.usage(None)

        print 'Varying on', nodes
        DUCC_JVM_OPTS = ' -Dducc.deploy.configuration=' + self.DUCC_HOME + "/resources/ducc.properties "
        DUCC_JVM_OPTS = DUCC_JVM_OPTS + ' -DDUCC_HOME=' + self.DUCC_HOME
        DUCC_JVM_OPTS = DUCC_JVM_OPTS + ' -Dducc.head=' + self.ducc_properties.get('ducc.head')

        self.spawn(self.java(), DUCC_JVM_OPTS, 'org.apache.uima.ducc.common.main.DuccRmAdmin', '--varyon', ' '.join(nodes)) 
        
        return

if __name__ == "__main__":
    stopper = DuccVaryOff()
    stopper.main(sys.argv[1:])