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import haizea.common.defaults as defaults
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import haizea.common.constants as constants
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from haizea.core.leases import Lease, Capacity, Duration, Timestamp, DiskImageSoftwareEnvironment
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from haizea.common.utils import round_datetime
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from haizea.cli.optionparser import Option
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from haizea.cli import Command
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import xmlrpclib
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import sys
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from mx.DateTime import ISO, now, DateTimeDelta, Parser
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try:
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import xml.etree.ElementTree as ET
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except ImportError:
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import elementtree.ElementTree as ET
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class RPCCommand(Command):
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def __init__(self, argv):
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Command.__init__(self, argv)
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self.optparser.add_option(Option("-s", "--server", action="store", type="string", dest="server", default=defaults.RPC_URI,
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help = """
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Haizea RPC server URI. If not specified, the default %s is used
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""" % defaults.RPC_URI))
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def create_rpc_proxy(self, server):
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return xmlrpclib.ServerProxy(server, allow_none=True)
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class haizea_request_lease(RPCCommand):
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"""
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Requests a new lease.
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"""
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name = "haizea-request-lease"
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START_NOW = "now"
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START_BESTEFFORT = "best_effort"
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DURATION_UNLIMITED = "unlimited"
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def __init__(self, argv):
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RPCCommand.__init__(self, argv)
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self.optparser.add_option(Option("-f", "--file", action="store", type="string", dest="file",
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help = """
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File containing a lease description in XML.
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"""))
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self.optparser.add_option(Option("-t", "--start", action="store", type="string", dest="start",
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help = """
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Starting time. Can be an ISO timestamp, "best_effort", or "now"
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"""))
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self.optparser.add_option(Option("-d", "--duration", action="store", type="string", dest="duration",
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help = """
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Duration. Can be an ISO timestamp or "unlimited"
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"""))
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self.optparser.add_option(Option("-n", "--numnodes", action="store", type="int", dest="numnodes",
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help = """
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Number of nodes.
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"""))
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self.optparser.add_option(Option("--preemptible", action="store_true", dest="preemptible",
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help = """
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Specifies a preemptible lease.
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"""))
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self.optparser.add_option(Option("--non-preemptible", action="store_false", dest="preemptible",
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help = """
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Specifies a non-preemptible lease.
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"""))
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self.optparser.add_option(Option("-c", "--cpu", action="store", type="int", dest="cpu",
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help = """
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Percentage of CPU (must be 0 < c <= 100)
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"""))
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self.optparser.add_option(Option("-m", "--mem", action="store", type="int", dest="mem",
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help = """
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Memory per node (in MB)
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"""))
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self.optparser.add_option(Option("-i", "--vmimage", action="store", type="string", dest="vmimage",
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help = """
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Disk image identifier.
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"""))
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self.optparser.add_option(Option("-z", "--vmimagesize", action="store", type="int", dest="vmimagesize",
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help = """
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Disk image size.
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"""))
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def run(self):
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self.parse_options()
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if self.opt.file != None:
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lease_elem = ET.parse(self.opt.file).getroot()
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exact = lease.find("start/exact")
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if exact != None:
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exact_time = exact.get("time")
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exact.set("time", str(self.__absolute_time(exact_time)))
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lease_xml_str = ET.tostring(lease_elem)
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else:
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if self.opt.preemptible == None:
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preemptible = False
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else:
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preemptible = self.opt.preemptible
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capacity = Capacity([constants.RES_CPU, constants.RES_MEM])
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capacity.set_quantity(constants.RES_CPU, int(self.opt.cpu) * 100)
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capacity.set_quantity(constants.RES_MEM, int(self.opt.mem))
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requested_resources = dict([(i+1, capacity) for i in range(self.opt.numnodes)])
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if self.opt.duration == haizea_request_lease.DURATION_UNLIMITED:
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duration = DateTimeDelta(36500)
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else:
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duration = ISO.ParseTimeDelta(self.opt.duration)
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if self.opt.start == haizea_request_lease.START_NOW:
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lease = Lease(lease_id = None,
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submit_time = None,
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requested_resources = requested_resources,
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start = Timestamp(Timestamp.NOW),
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duration = Duration(duration),
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deadline = None,
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preemptible=preemptible,
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software = DiskImageSoftwareEnvironment(self.opt.vmimage, self.opt.vmimagesize),
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state = None
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)
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elif self.opt.start == haizea_request_lease.START_BESTEFFORT:
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lease = Lease(lease_id = None,
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submit_time = None,
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requested_resources = requested_resources,
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start = Timestamp(Timestamp.UNSPECIFIED),
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duration = Duration(duration),
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deadline = None,
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preemptible=preemptible,
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software = DiskImageSoftwareEnvironment(self.opt.vmimage, self.opt.vmimagesize),
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state = None
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)
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else:
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start = self.__absolute_time(self.opt.start)
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lease = Lease(lease_id = None,
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submit_time = None,
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requested_resources = requested_resources,
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start = Timestamp(start),
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duration = Duration(duration),
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deadline = None,
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preemptible=preemptible,
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software = DiskImageSoftwareEnvironment(self.opt.vmimage, self.opt.vmimagesize),
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state = None
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)
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lease_xml_str = ET.tostring(lease.to_xml())
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server = self.create_rpc_proxy(self.opt.server)
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try:
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lease_id = server.create_lease(lease_xml_str)
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print "Lease submitted correctly."
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print "Lease ID: %i" % lease_id
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except xmlrpclib.Fault, err:
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print >> sys.stderr, "XMLRPC fault: %s" % err.faultString
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if self.opt.debug:
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raise
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except Exception, msg:
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print >> sys.stderr, "Error: %s" % msg
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if self.opt.debug:
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raise
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def __absolute_time(self, time_str):
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if time_str[0] == "+":
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time = round_datetime(now() + ISO.ParseTime(time_str[1:]))
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else:
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time = Parser.ParseDateTime(time_str)
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return time
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class haizea_cancel_lease(RPCCommand):
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"""
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Cancel a lease.
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"""
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name = "haizea-cancel-lease"
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def __init__(self, argv):
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RPCCommand.__init__(self, argv)
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self.optparser.add_option(Option("-l", "--lease", action="store", type="int", dest="lease",
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help = """
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ID of lease to cancel.
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"""))
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def run(self):
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self.parse_options()
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server = self.create_rpc_proxy(self.opt.server)
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try:
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code = server.cancel_lease(self.opt.lease)
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except xmlrpclib.Fault, err:
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print >> sys.stderr, "XMLRPC fault: %s" % err.faultString
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if self.opt.debug:
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raise
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except Exception, msg:
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print >> sys.stderr, "Error: %s" % msg
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if self.opt.debug:
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raise
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class haizea_list_leases(RPCCommand):
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"""
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List all active leases in the system (i.e., not including completed or cancelled leases)
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"""
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name = "haizea-list-leases"
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def __init__(self, argv):
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RPCCommand.__init__(self, argv)
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def run(self):
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self.parse_options()
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server = self.create_rpc_proxy(self.opt.server)
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fields = [("id","ID", 3),
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("type","Type", 12),
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("state","State", 9),
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("start_req", "Starting time", 22),
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("duration_req", "Duration", 12),
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("numnodes", "Nodes", 3)]
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try:
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leases = server.get_leases()
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leases_fields = []
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for lease_xml in leases:
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lease = Lease.from_xml_string(lease_xml)
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lease_fields = {}
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lease_fields["id"] = lease.id
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lease_fields["type"] = Lease.type_str[lease.get_type()]
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lease_fields["state"] = Lease.state_str[lease.get_state()]
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lease_fields["start_req"] = lease.start.requested
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lease_fields["duration_req"] = lease.duration.requested
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lease_fields["numnodes"] = len(lease.requested_resources)
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leases_fields.append(lease_fields)
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console_table_printer(fields, leases_fields)
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except xmlrpclib.Fault, err:
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print >> sys.stderr, "XMLRPC fault: %s" % err.faultString
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if self.opt.debug:
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raise
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except Exception, msg:
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print >> sys.stderr, "Error: %s" % msg
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if self.opt.debug:
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raise
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class haizea_list_hosts(RPCCommand):
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"""
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List hosts managed by Haizea
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"""
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name = "haizea-list-hosts"
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def __init__(self, argv):
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RPCCommand.__init__(self, argv)
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def run(self):
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self.parse_options()
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server = self.create_rpc_proxy(self.opt.server)
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fields = [("id","ID", 3),
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("hostname","Hostname", 10),
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("cpu","CPUs", 6),
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("mem", "Mem", 6)]
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try:
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hosts = server.get_hosts()
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console_table_printer(fields, hosts)
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except xmlrpclib.Fault, err:
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print >> sys.stderr, "XMLRPC fault: %s" % err.faultString
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if self.opt.debug:
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raise
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except Exception, msg:
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print >> sys.stderr, "Error: %s" % msg
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if self.opt.debug:
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raise
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class haizea_show_queue(RPCCommand):
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"""
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Show the contents of the Haizea queue
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"""
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name = "haizea-show-queue"
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def __init__(self, argv):
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RPCCommand.__init__(self, argv)
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def run(self):
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self.parse_options()
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server = self.create_rpc_proxy(self.opt.server)
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fields = [("id","ID", 3),
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("type","Type", 12),
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("state","State", 9),
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("start_req", "Starting time", 22),
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("duration_req", "Duration", 12),
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("numnodes", "Nodes", 3)]
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try:
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leases = server.get_queue()
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if len(leases) == 0:
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print "Queue is empty."
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else:
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leases_fields = []
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for lease_xml in leases:
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lease = Lease.from_xml_string(lease_xml)
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lease_fields = {}
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lease_fields["id"] = lease.id
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lease_fields["type"] = Lease.type_str[lease.get_type()]
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lease_fields["state"] = Lease.state_str[lease.get_state()]
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lease_fields["start_req"] = lease.start.requested
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lease_fields["duration_req"] = lease.duration.requested
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lease_fields["numnodes"] = len(lease.requested_resources)
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leases_fields.append(lease_fields)
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console_table_printer(fields, leases_fields)
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except xmlrpclib.Fault, err:
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print >> sys.stderr, "XMLRPC fault: %s" % err.faultString
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if self.opt.debug:
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raise
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except Exception, msg:
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print >> sys.stderr, "Error: %s" % msg
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if self.opt.debug:
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raise
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def console_table_printer(fields, values):
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print "\33[1m\33[4m",
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for (name,pname,width) in fields:
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width = max(len(pname),width) + 1
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centered = pname.ljust(width)
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print centered,
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print "\33[0m"
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for v in values:
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for (name,pname,width) in fields:
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width = max(len(name),width)
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print " %s" % str(v[name]).ljust(width),
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print
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