[4700b3b] | 1 | #!/usr/local/bin/python |
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| 2 | |
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| 3 | import os,sys |
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| 4 | import subprocess |
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| 5 | import tempfile |
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[c971895] | 6 | import logging |
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[4700b3b] | 7 | |
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| 8 | from fedd_services import * |
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| 9 | from fedd_internal_services import * |
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[ec4fb42] | 10 | from util import * |
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[51cc9df] | 11 | from fedid import fedid |
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[9460b1e] | 12 | from remote_service import xmlrpc_handler, soap_handler |
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[4700b3b] | 13 | from service_error import * |
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| 14 | |
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| 15 | |
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| 16 | class nullHandler(logging.Handler): |
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| 17 | def emit(self, record): pass |
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| 18 | |
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[2c6128f] | 19 | fl = logging.getLogger("fedd.splitter") |
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[4700b3b] | 20 | fl.addHandler(nullHandler()) |
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| 21 | |
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[ec4fb42] | 22 | class split_local: |
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[3f6bc5f] | 23 | def __init__(self, config=None, auth=None): |
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[4700b3b] | 24 | """ |
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| 25 | Intialize the various attributes, most from the config object |
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| 26 | """ |
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[f4f4117] | 27 | if config.has_section("splitter"): |
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| 28 | self.debug = config.getboolean("splitter", "debug") |
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| 29 | self.muxmax = config.getint("splitter", "muxmax", 3) |
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[2c6128f] | 30 | self.tclsh = config.get("splitter", "tclsh", |
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| 31 | "/usr/local/bin/otclsh") |
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| 32 | self.tcl_splitter = config.get("splitter", "tcl_splitter", |
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| 33 | "/usr/testbed/lib/ns2ir/parse.tcl") |
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[f4f4117] | 34 | else: |
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| 35 | self.debug = False |
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| 36 | self.muxmax = 3 |
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[2c6128f] | 37 | self.tclsh = "/usr/local/bin/otclsh" |
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| 38 | self.tcl_splitter = "/usr/testbed/lib/ns2ir/parse.tcl" |
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[f4f4117] | 39 | |
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[4700b3b] | 40 | self.log = logging.getLogger("fedd.splitter") |
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[c971895] | 41 | set_log_level(config, "splitter", self.log) |
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[4700b3b] | 42 | self.trace_file = sys.stderr |
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| 43 | |
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[2c6128f] | 44 | set_log_level(config, "splitter", self.log) |
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[4700b3b] | 45 | # Dispatch tables |
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| 46 | self.soap_services = {\ |
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[058f58e] | 47 | 'Ns2Split': soap_handler(\ |
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[4700b3b] | 48 | Ns2SplitRequestMessage.typecode, |
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| 49 | getattr(self, "run_splitter"), |
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| 50 | Ns2SplitResponseMessage, |
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| 51 | "Ns2SplitResponseBody"), |
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| 52 | } |
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| 53 | |
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| 54 | self.xmlrpc_services = {\ |
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[058f58e] | 55 | 'Ns2Split': xmlrpc_handler(\ |
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[4700b3b] | 56 | getattr(self, "run_splitter"), |
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| 57 | "Ns2SplitResponseBody"), |
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| 58 | } |
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| 59 | |
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| 60 | def run_splitter(self, req, fid): |
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| 61 | """ |
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| 62 | The external interface to experiment creation called from the |
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| 63 | dispatcher. |
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| 64 | |
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| 65 | Creates a working directory, splits the incoming description using the |
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| 66 | splitter script and parses out the avrious subsections using the |
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| 67 | lcasses above. Once each sub-experiment is created, use pooled threads |
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| 68 | to instantiate them and start it all up. |
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| 69 | """ |
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| 70 | try: |
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| 71 | tmpdir = tempfile.mkdtemp(prefix="split-") |
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| 72 | except IOError: |
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| 73 | raise service_error(service_error.internal, "Cannot create tmp dir") |
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| 74 | |
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| 75 | tclfile = tmpdir + "/experiment.tcl" |
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| 76 | pid = "dummy" |
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| 77 | gid = "dummy" |
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[f4f4117] | 78 | eid = "dummy" |
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[4700b3b] | 79 | |
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| 80 | req = req.get('Ns2SplitRequestBody', None) |
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| 81 | if not req: |
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| 82 | raise service_error(service_error.req, |
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| 83 | "Bad request format (no Ns2SplitRequestBody)") |
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| 84 | # The tcl parser needs to read a file so put the content into that file |
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[f4f4117] | 85 | descr=req.get('description', None) |
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[4700b3b] | 86 | if descr: |
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| 87 | file_content=descr.get('ns2description', None) |
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| 88 | if file_content: |
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| 89 | try: |
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| 90 | f = open(tclfile, 'w') |
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| 91 | f.write(file_content) |
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| 92 | f.close() |
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| 93 | except IOError: |
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| 94 | raise service_error(service_error.internal, |
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| 95 | "Cannot write temp experiment description") |
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| 96 | else: |
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| 97 | raise service_error(service_error.req, |
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| 98 | "Only ns2descriptions supported") |
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| 99 | else: |
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[f4f4117] | 100 | raise service_error(service_error.req, "No description") |
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[4700b3b] | 101 | |
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| 102 | master = req.get('master', None) |
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| 103 | if master == None: |
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| 104 | raise service_error(service_error.req, "No master testbed label") |
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| 105 | |
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[2c6128f] | 106 | include_fedkit = req.get('include_fedkit', None) |
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| 107 | if include_fedkit == None: |
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| 108 | raise service_error(service_error.req, |
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| 109 | "No federation kit inclusion directive") |
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| 110 | |
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[4700b3b] | 111 | |
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| 112 | tclcmd = [self.tclsh, self.tcl_splitter, '-s', '-x', |
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[2c6128f] | 113 | str(self.muxmax), '-m', master] |
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| 114 | if include_fedkit: tclcmd.append('-k') |
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| 115 | tclcmd.extend([pid, gid, eid, tclfile]) |
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| 116 | self.log.debug("Calling splitter %s" % " ".join(tclcmd)) |
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[c971895] | 117 | tclparser = subprocess.Popen(tclcmd, stdout=subprocess.PIPE) |
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[4700b3b] | 118 | |
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[f4f4117] | 119 | out = "" |
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[4700b3b] | 120 | # Package up the split data |
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| 121 | for line in tclparser.stdout: |
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| 122 | out += line |
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| 123 | |
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| 124 | # Walk up tmpdir, deleting as we go |
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| 125 | for path, dirs, files in os.walk(tmpdir, topdown=False): |
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| 126 | for f in files: |
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| 127 | os.remove(os.path.join(path, f)) |
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| 128 | for d in dirs: |
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| 129 | os.rmdir(os.path.join(path, d)) |
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| 130 | os.rmdir(tmpdir) |
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| 131 | |
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| 132 | resp = { 'output' : out } |
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| 133 | |
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| 134 | return resp |
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| 135 | |
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| 136 | |
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