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## The contents of this file are subject to the Mozilla Public License
## Version 1.1 (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.mozilla.org/MPL/
##
## Software distributed under the License is distributed on an "AS IS"
## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
## License for the specific language governing rights and limitations
## under the License.
##
## The Original Code is RabbitMQ.
##
## The Initial Developers of the Original Code are LShift Ltd,
## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd.
##
## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd,
## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd
## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial
## Technologies LLC, and Rabbit Technologies Ltd.
##
## Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift
## Ltd. Portions created by Cohesive Financial Technologies LLC are
## Copyright (C) 2007-2009 Cohesive Financial Technologies
## LLC. Portions created by Rabbit Technologies Ltd are Copyright
## (C) 2007-2009 Rabbit Technologies Ltd.
##
## All Rights Reserved.
##
## Contributor(s): ______________________________________.
##
from __future__ import nested_scopes
import re
import sys
from os import remove
try:
try:
import simplejson as json
except ImportError, e:
if sys.hexversion >= 0x20600f0:
import json
else:
raise e
except ImportError:
print >> sys.stderr , " You don't appear to have simplejson.py installed"
print >> sys.stderr , " (an implementation of a JSON reader and writer in Python)."
print >> sys.stderr , " You can install it:"
print >> sys.stderr , " - by running 'apt-get install python-simplejson' on Debian-based systems,"
print >> sys.stderr , " - by running 'yum install python-simplejson' on Fedora/Red Hat system,"
print >> sys.stderr , " - by running 'port install py25-simplejson' on Macports on OS X"
print >> sys.stderr , " (you may need to say 'make PYTHON=python2.5', as well),"
print >> sys.stderr , " - from sources from 'http://pypi.python.org/pypi/simplejson'"
print >> sys.stderr , " - simplejson is a standard json library in the Python core since 2.6"
sys.exit(1)
def insert_base_types(d):
for t in ['octet', 'shortstr', 'longstr', 'short', 'long',
'longlong', 'bit', 'table', 'timestamp']:
d[t] = t
class AmqpSpec:
def __init__(self, filename):
self.spec = json.load(file(filename))
self.major = self.spec['major-version']
self.minor = self.spec['minor-version']
self.port = self.spec['port']
self.domains = {}
insert_base_types(self.domains)
for entry in self.spec['domains']:
self.domains[ entry[0] ] = entry[1]
self.constants = []
for d in self.spec['constants']:
if d.has_key('class'):
klass = d['class']
else:
klass = ''
self.constants.append((d['name'], d['value'], klass))
self.classes = []
for element in self.spec['classes']:
self.classes.append(AmqpClass(self.spec, element))
def allClasses(self):
return self.classes
def allMethods(self):
return [m for c in self.classes for m in c.allMethods()]
def resolveDomain(self, n):
return self.domains[n]
class AmqpEntity:
def __init__(self, element):
self.element = element
self.name = element['name']
class AmqpClass(AmqpEntity):
def __init__(self, spec, element):
AmqpEntity.__init__(self, element)
self.spec = spec
self.index = int(self.element['id'])
self.methods = []
for method_element in self.element['methods']:
self.methods.append(AmqpMethod(self, method_element))
self.hasContentProperties = False
for method in self.methods:
if method.hasContent:
self.hasContentProperties = True
break
self.fields = []
if self.element.has_key('properties'):
index = 0
for e in self.element['properties']:
self.fields.append(AmqpField(self, e, index))
index = index + 1
def allMethods(self):
return self.methods
def __repr__(self):
return 'AmqpClass("' + self.name + '")'
class AmqpMethod(AmqpEntity):
def __init__(self, klass, element):
AmqpEntity.__init__(self, element)
self.klass = klass
self.index = int(self.element['id'])
if self.element.has_key('synchronous'):
self.isSynchronous = self.element['synchronous']
else:
self.isSynchronous = False
if self.element.has_key('content'):
self.hasContent = self.element['content']
else:
self.hasContent = False
self.arguments = []
index = 0
for argument in element['arguments']:
self.arguments.append(AmqpField(self, argument, index))
index = index + 1
def __repr__(self):
return 'AmqpMethod("' + self.klass.name + "." + self.name + '" ' + repr(self.arguments) + ')'
class AmqpField(AmqpEntity):
def __init__(self, method, element, index):
AmqpEntity.__init__(self, element)
self.method = method
self.index = index
if self.element.has_key('type'):
self.domain = self.element['type']
else:
self.domain = self.element['domain']
if self.element.has_key('default-value'):
self.defaultvalue = self.element['default-value']
else:
self.defaultvalue = None
def __repr__(self):
return 'AmqpField("' + self.name + '")'
def do_main(header_fn,body_fn):
def usage():
print >> sys.stderr , "Usage:"
print >> sys.stderr , " %s header|body path_to_amqp_spec.json path_to_output_file" % (sys.argv[0])
print >> sys.stderr , ""
def execute(fn, amqp_spec, out_file):
stdout = sys.stdout
f = open(out_file, 'w')
try:
sys.stdout = f
fn(amqp_spec)
except:
remove(out_file)
raise
finally:
sys.stdout = stdout
f.close()
if not len(sys.argv) == 4:
usage()
sys.exit(1)
else:
if sys.argv[1] == "header":
execute(header_fn, sys.argv[2], sys.argv[3])
elif sys.argv[1] == "body":
execute(body_fn, sys.argv[2], sys.argv[3])
else:
usage()
sys.exit(1)
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