#!/usr/bin/env python
+import moe
import moe.config
+import moe.box
+import moe.log
+import moe.status
+import moe.pipeline
+import moe.batch
+import moe.util
+import os.path
+import shutil
+
+class Eval:
+ """
+ """
+
+ def __init__(self):
+ self.log = moe.log.Loggers()
+ self.config = moe.config.ConfigTree()
+ self.main_pipe = moe.pipeline.MoePipeline("main")
+ self.test_pipe = moe.pipeline.MoePipeline("test")
+ self.status = moe.status.MoeStatus()
+
+ def __getitem__(self, key):
+ return self.config[key]
+
+ def init(self, overrides=[]):
+ "Initializes most part of Eval before running the pipeline. See the timeline for details."
+ self.log.info("Initializing ...")
+
+ # set basic builtins
+ self.config.parse('HOME = \'%s\'' % os.getcwd(), source="<builtins>", level=0)
+ self.config.parse('CONFIG = "{HOME}/config"', source="<builtins>", level=0)
+ self.config.parse('LOG = "{HOME}/log"', source="<builtins>", level=0)
+ self.config.parse('DEBUG_LEVEL = "0"', source="<builtins>", level=0)
+ self.config.parse('VERBOSE = ""', source="<builtins>", level=0)
+ self.config.parse('EXTENSIONS = ""', source="<builtins>", level=0)
+
+ # apply overrides
+ for ov in overrides:
+ self.config.parse(ov, source="<overrides>", level=100)
+
+ # load config file
+ self.config.fix('CONFIG')
+ self.config.parse_file(self['CONFIG'], level=30)
+ # fix variables
+ self.config.fix(['LOG', 'USER_LOG', 'VERBOSE', 'HOME', 'DEBUG_LEVEL', 'TDIR'])
+ # start logging
+ self.log.open_eval_log(self['LOG'], self['DEBUG_LEVEL'], redirect_fds = True)
+ self.log.open_user_log(self['USER_LOG'])
+ self.debug_dump_config()
+
+ # init and check TDIR
+ self.debug('Cleaning TDIR: %s'%self['TDIR'])
+ self.init_TDIR()
+
+ # insert hooks into main pipeline
+ self.main_pipe.insert(5, "Eval.hook_init_dirs", self.hook_init_dirs)
+ self.main_pipe.insert(15, "Eval.hook_load_task_config", self.hook_load_task_config)
+ self.main_pipe.insert(20, "Eval.hook_init_tasktype", self.hook_init_tasktype)
+ self.main_pipe.insert(90, "Eval.hook_write_metadata", self.hook_write_metadata)
+
+ # ininialize extensions (let them insert hooks)
+ self.conf.fix('EXTENSIONS')
+ exts = self['EXTENSIONS'].split()
+ for e in exts:
+ if not e:
+ raise MoeError, "Invalid extension name: %r" % e
+ self.log.debug("Loading extension %s", e)
+ try:
+ mod = util.load_module('moe.exts.' + e)
+ except ImportError:
+ self.log.exception()
+ raise MoeError, 'Unknown extension: %r' % e
+ mod.init(self)
+
+ def run(self):
+ "Run the main pipeline."
+ self.debug_dump_pipe(self.main_pipe)
+ self.debug('Running main pipeline')
+ self.main_pipe.run(self)
+
+ def debug_dump_config(self):
+ "Dumps config at level DDEBUG (only compiles the dump if main level is low enough)."
+ if self.log.level <= 5:
+ self.log.ddebug('****** Config dump: ******')
+ self.log.ddebug(self.config.dump('**** '))
+ self.log.ddebug('**************************')
+
+ def debug_dump_pipe(self, pipe):
+ "Dumps pipeline `pipe` at level DDEBUG (only compiles the dump if main level low enough)."
+ if self.log.level <= 5:
+ self.log.ddebug('****** Pipeline %r dump: ******'%pipe,name)
+ self.log.ddebug(pipe.dump(prefix='**** '))
+ self.log.ddebug('**************************')
+
+ def hook_init_dirs(self):
+ """(mainline at time 5) Create and check directories, fix directory variables.
+ .. note:: Currently only TDIR."""
+ self.config.fix('TDIR')
+ tdir = self['TDIR']
+ if os.path.isdir(tdir):
+ shutil.rmtree(tdir)
+ moe.util.mkdir_tree(tdir)
+
+ def hook_load_task_config(self):
+ """(mainline at time 15) Load `TASK_CONFIG` and check `PDIR`, fixes `TASK`, `PDIR`, `TASK_CONFIG`."""
+ self.config.fix(['TASK', 'PDIR', 'TASK_CONFIG'])
+ self.log.debug('Loading task config %s', self['TASK_CONFIG'])
+ if not os.path.isdir(self['PDIR']):
+ raise moe.MoeError, "No such task %s in %s" % (self['TASK'], self['PDIR'])
+ self.config.parse_file(self['TASK_CONFIG'], level=50)
+ self.debug_dump_config()
+
+ self.stat["task"] = task # Metadata
+
+ def hook_init_tasktype(self):
+ """(mainline at time 20) Fix `TASK_TYPE`, initialize task type module."""
+
+ self.config.fix('TASK_TYPE')
+ task_type = self['TASK_TYPE']
+ self.log.debug('Loading module for TASK_TYPE: %r', task_type)
+ if not task_type:
+ raise MoeError, "Invalid TASK_TYPE: %r" % e
+ try:
+ self.tasktype_module = utils.load_module('moe.tasktypes.' + task_type)
+ except ImportError:
+ self.log.exception()
+ raise MoeError, 'Unknown TASK_TYPE: %r' % task_type
+ mod.tasktype_module.init(self)
+
+ def hook_write_metadata(self):
+ """(mainline at time 90) Write status metadata into file `STATUS_FILE`."""
+ self.log.debug('Writing status file %s', self['STATUS_FILE'])
+ self.status.write(self['STATUS_FILE'])
+ # TODO: dump to ddebug
+
+
+