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# Copyright 2013, Big Switch Networks, Inc.
#
# LoxiGen is licensed under the Eclipse Public License, version 1.0 (EPL), with
# the following special exception:
#
# LOXI Exception
#
# As a special exception to the terms of the EPL, you may distribute libraries
# generated by LoxiGen (LoxiGen Libraries) under the terms of your choice, provided
# that copyright and licensing notices generated by LoxiGen are not altered or removed
# from the LoxiGen Libraries and the notice provided below is (i) included in
# the LoxiGen Libraries, if distributed in source code form and (ii) included in any
# documentation for the LoxiGen Libraries, if distributed in binary form.
#
# Notice: "Copyright 2013, Big Switch Networks, Inc. This library was generated by the LoxiGen Compiler."
#
# You may not use this file except in compliance with the EPL or LOXI Exception. You may obtain
# a copy of the EPL at:
#
# http://www.eclipse.org/legal/epl-v10.html
#
# 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
# EPL for the specific language governing permissions and limitations
# under the EPL.
"""
@brief Main Java Generation module
"""
import pdb
import os
import shutil
import of_g
from loxi_ir import *
import lang_java
import loxi_utils.loxi_utils as loxi_utils
import java_gen.java_model as java_model
def gen_all_java(out, name):
basedir='loxi_output/openflowj'
srcdir = "%s/src/main/java/" % basedir
print "Outputting to %s" % basedir
if os.path.exists(basedir):
shutil.rmtree(basedir)
os.makedirs(basedir)
copy_prewrite_tree(basedir)
gen = JavaGenerator(srcdir)
gen.create_of_interfaces()
gen.create_of_classes()
gen.create_of_const_enums()
with open('README.java-lang') as readme_src:
out.writelines(readme_src.readlines())
out.close()
class JavaGenerator(object):
templates_dir = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'templates')
def __init__(self, basedir):
self.basedir = basedir
self.java_model = java_model.model
def render_class(self, clazz, template, **context):
context['class_name'] = clazz.name
context['package'] = clazz.package
filename = os.path.join(self.basedir, "%s/%s.java" % (clazz.package.replace(".", "/"), clazz.name))
dirname = os.path.dirname(filename)
if not os.path.exists(dirname):
os.makedirs(dirname)
prefix = '//::(?=[ \t]|$)'
print "filename: %s" % filename
with open(filename, "w") as f:
loxi_utils.render_template(f, template, [self.templates_dir], context, prefix=prefix)
def create_of_const_enums(self):
for enum in self.java_model.enums:
if enum.name in ["OFPort"]:
continue
self.render_class(clazz=enum,
template='const.java', enum=enum, all_versions=self.java_model.versions)
def create_of_interfaces(self):
""" Create the base interfaces for of classes"""
for interface in self.java_model.interfaces:
#if not utils.class_is_message(interface.c_name):
# continue
self.render_class(clazz=interface,
template="of_interface.java", msg=interface)
def create_of_classes(self):
""" Create the OF classes with implementations for each of the interfaces and versions """
for interface in self.java_model.interfaces:
if interface.name == "OFTableMod":
continue
if not loxi_utils.class_is_message(interface.c_name) and not loxi_utils.class_is_oxm(interface.c_name):
continue
for java_class in interface.versioned_classes:
self.render_class(clazz=java_class,
template='of_class.java', version=java_class.version, msg=java_class,
impl_class=java_class.name)
def mkdir_p(path):
""" Emulates `mkdir -p` """
try:
os.makedirs(path)
except OSError as exc: # Python >2.5
if exc.errno == errno.EEXIST:
pass
else: raise
def copy_file_with_boiler_plate(src_name, dst_name, with_boiler=True):
with open("java_gen/pre-written/%s" % src_name, "r") as src:
with open(dst_name, "w") as dst:
if with_boiler:
print_boiler_plate(os.path.basename(dst_name), dst)
dst.writelines(src.readlines())
def frob(s, **kwargs):
""" Step through string s and for each key in kwargs,
replace $key with kwargs[key] in s.
"""
for k,v in kwargs.iteritems():
s = s.replace('$%s' % k, v)
return s
def copy_prewrite_tree(basedir):
""" Recursively copy the directory structure from ./java_gen/pre-write
into $basedir"""
print "Copying pre-written files into %s" % basedir
#subprocess.call("cd java_gen/pre-written && tar cpf - pom.xml | ( cd ../../%s && tar xvpf - )" % basedir,
# shell=True)
os.symlink(os.path.abspath("java_gen/pre-written/pom.xml"), "%s/pom.xml" % basedir)