4e24c3ca5b
Split monolitic sahara-api into two services: sahara-api and sahara-engine. The former is a user-facing interface, the later - service doing all the work. Sahara-api sends tasks to sahara-engine via oslo.messaging. See the blueprint for details. Notes: * Used the following Climate RPC code as a baseline: https://github.com/stackforge/climate/blob/master/climate/utils/service.py hence added Julien Danjou to licence header. * Removed the old contents of sahara/utils/rpc.py - that is a prehistoric stuff not used anywhere. * sahara-api still depends on eventlet, while we want to drop this dependency in the end. * periodics run in sahara-api. They shold be moved to engine later. Partially Implements: blueprint scalable-savanna Change-Id: I64275a757b539f3fcddd6e993d6614d492745226
109 lines
3.4 KiB
Python
109 lines
3.4 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
|
# implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import eventlet
|
|
|
|
|
|
EVENTLET_MONKEY_PATCH_MODULES = dict(os=True,
|
|
select=True,
|
|
socket=True,
|
|
thread=True,
|
|
time=True)
|
|
|
|
|
|
def patch_all():
|
|
"""Apply all patches.
|
|
|
|
List of patches:
|
|
|
|
* eventlet's monkey patch for all cases;
|
|
* minidom's writexml patch for py < 2.7.3 only.
|
|
"""
|
|
eventlet_monkey_patch()
|
|
patch_minidom_writexml()
|
|
|
|
|
|
def eventlet_monkey_patch():
|
|
"""Apply eventlet's monkey patch.
|
|
|
|
This call should be the first call in application. It's safe to call
|
|
monkey_patch multiple times.
|
|
"""
|
|
eventlet.monkey_patch(**EVENTLET_MONKEY_PATCH_MODULES)
|
|
|
|
|
|
def eventlet_import_monkey_patched(module):
|
|
"""Returns module monkey patched by eventlet.
|
|
|
|
It's needed for some tests, for example, context test.
|
|
"""
|
|
return eventlet.import_patched(module, **EVENTLET_MONKEY_PATCH_MODULES)
|
|
|
|
|
|
def patch_minidom_writexml():
|
|
"""Patch for xml.dom.minidom toprettyxml bug with whitespaces around text
|
|
|
|
We apply the patch to avoid excess whitespaces in generated xml
|
|
configuration files that brakes Hadoop.
|
|
|
|
(This patch will be applied for all Python versions < 2.7.3)
|
|
|
|
Issue: http://bugs.python.org/issue4147
|
|
Patch: http://hg.python.org/cpython/rev/cb6614e3438b/
|
|
Description: http://ronrothman.com/public/leftbraned/xml-dom-minidom-\
|
|
toprettyxml-and-silly-whitespace/#best-solution
|
|
"""
|
|
|
|
import sys
|
|
if sys.version_info >= (2, 7, 3):
|
|
return
|
|
|
|
import xml.dom.minidom as md
|
|
|
|
def element_writexml(self, writer, indent="", addindent="", newl=""):
|
|
# indent = current indentation
|
|
# addindent = indentation to add to higher levels
|
|
# newl = newline string
|
|
writer.write(indent + "<" + self.tagName)
|
|
|
|
attrs = self._get_attributes()
|
|
a_names = attrs.keys()
|
|
a_names.sort()
|
|
|
|
for a_name in a_names:
|
|
writer.write(" %s=\"" % a_name)
|
|
md._write_data(writer, attrs[a_name].value)
|
|
writer.write("\"")
|
|
if self.childNodes:
|
|
writer.write(">")
|
|
if (len(self.childNodes) == 1
|
|
and self.childNodes[0].nodeType == md.Node.TEXT_NODE):
|
|
self.childNodes[0].writexml(writer, '', '', '')
|
|
else:
|
|
writer.write(newl)
|
|
for node in self.childNodes:
|
|
node.writexml(writer, indent + addindent, addindent, newl)
|
|
writer.write(indent)
|
|
writer.write("</%s>%s" % (self.tagName, newl))
|
|
else:
|
|
writer.write("/>%s" % (newl))
|
|
|
|
md.Element.writexml = element_writexml
|
|
|
|
def text_writexml(self, writer, indent="", addindent="", newl=""):
|
|
md._write_data(writer, "%s%s%s" % (indent, self.data, newl))
|
|
|
|
md.Text.writexml = text_writexml
|