Andreas Wundsam | 2730346 | 2013-07-16 12:52:35 -0700 | [diff] [blame] | 1 | # Copyright 2013, Big Switch Networks, Inc. |
| 2 | # |
| 3 | # LoxiGen is licensed under the Eclipse Public License, version 1.0 (EPL), with |
| 4 | # the following special exception: |
| 5 | # |
| 6 | # LOXI Exception |
| 7 | # |
| 8 | # As a special exception to the terms of the EPL, you may distribute libraries |
| 9 | # generated by LoxiGen (LoxiGen Libraries) under the terms of your choice, provided |
| 10 | # that copyright and licensing notices generated by LoxiGen are not altered or removed |
| 11 | # from the LoxiGen Libraries and the notice provided below is (i) included in |
| 12 | # the LoxiGen Libraries, if distributed in source code form and (ii) included in any |
| 13 | # documentation for the LoxiGen Libraries, if distributed in binary form. |
| 14 | # |
| 15 | # Notice: "Copyright 2013, Big Switch Networks, Inc. This library was generated by the LoxiGen Compiler." |
| 16 | # |
| 17 | # You may not use this file except in compliance with the EPL or LOXI Exception. You may obtain |
| 18 | # a copy of the EPL at: |
| 19 | # |
| 20 | # http://www.eclipse.org/legal/epl-v10.html |
| 21 | # |
| 22 | # Unless required by applicable law or agreed to in writing, software |
| 23 | # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 24 | # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 25 | # EPL for the specific language governing permissions and limitations |
| 26 | # under the EPL. |
| 27 | |
| 28 | """ |
| 29 | @brief Main Java Generation module |
| 30 | """ |
| 31 | |
| 32 | import pdb |
| 33 | import os |
| 34 | import shutil |
| 35 | |
| 36 | import of_g |
| 37 | from loxi_ir import * |
| 38 | import lang_java |
| 39 | |
| 40 | import loxi_utils.loxi_utils as loxi_utils |
| 41 | |
| 42 | import java_gen.java_model as java_model |
| 43 | |
| 44 | def gen_all_java(out, name): |
| 45 | target_dir='loxi_output/openflowj' |
| 46 | basedir="%s/%s/" % ( |
| 47 | target_dir, |
| 48 | lang_java.file_to_subdir_map['base_java']) |
| 49 | srcdir = "%s/src/main/java/" % basedir |
| 50 | print "Outputting to %s" % basedir |
| 51 | if os.path.exists(basedir): |
| 52 | shutil.rmtree(basedir) |
| 53 | os.makedirs(basedir) |
| 54 | copy_prewrite_tree(basedir) |
| 55 | |
| 56 | gen = JavaGenerator(srcdir) |
| 57 | gen.create_of_interfaces() |
| 58 | gen.create_of_classes() |
| 59 | gen.create_of_const_enums() |
| 60 | |
| 61 | with open('README.java-lang') as readme_src: |
| 62 | out.writelines(readme_src.readlines()) |
| 63 | out.close() |
| 64 | |
| 65 | |
| 66 | class JavaGenerator(object): |
| 67 | templates_dir = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'templates') |
| 68 | |
| 69 | def __init__(self, basedir): |
| 70 | self.basedir = basedir |
| 71 | self.java_model = java_model.model |
| 72 | |
| 73 | def render_class(self, clazz, template, **context): |
| 74 | context['class_name'] = clazz.name |
| 75 | context['package'] = clazz.package |
| 76 | |
| 77 | filename = os.path.join(self.basedir, "%s/%s.java" % (clazz.package.replace(".", "/"), clazz.name)) |
| 78 | dirname = os.path.dirname(filename) |
| 79 | if not os.path.exists(dirname): |
| 80 | os.makedirs(dirname) |
| 81 | prefix = '//::(?=[ \t]|$)' |
| 82 | print "filename: %s" % filename |
| 83 | with open(filename, "w") as f: |
| 84 | loxi_utils.render_template(f, template, [self.templates_dir], context, prefix=prefix) |
| 85 | |
| 86 | def create_of_const_enums(self): |
| 87 | for enum in self.java_model.enums: |
| 88 | if enum.name in ["OFPort"]: |
| 89 | continue |
| 90 | self.render_class(clazz=enum, |
| 91 | template='const.java', enum=enum, all_versions=self.java_model.versions) |
| 92 | |
| 93 | def create_of_interfaces(self): |
| 94 | """ Create the base interfaces for of classes""" |
| 95 | for interface in self.java_model.interfaces: |
| 96 | #if not utils.class_is_message(interface.c_name): |
| 97 | # continue |
| 98 | self.render_class(clazz=interface, |
| 99 | template="of_interface.java", msg=interface) |
| 100 | |
| 101 | def create_of_classes(self): |
| 102 | """ Create the OF classes with implementations for each of the interfaces and versions """ |
| 103 | for interface in self.java_model.interfaces: |
| 104 | if not loxi_utils.class_is_message(interface.c_name) and not loxi_utils.class_is_oxm(interface.c_name): |
| 105 | continue |
| 106 | for java_class in interface.versioned_classes: |
| 107 | self.render_class(clazz=java_class, |
| 108 | template='of_class.java', version=java_class.version, msg=java_class, |
| 109 | impl_class=java_class.name) |
| 110 | |
| 111 | |
| 112 | def mkdir_p(path): |
| 113 | """ Emulates `mkdir -p` """ |
| 114 | try: |
| 115 | os.makedirs(path) |
| 116 | except OSError as exc: # Python >2.5 |
| 117 | if exc.errno == errno.EEXIST: |
| 118 | pass |
| 119 | else: raise |
| 120 | |
| 121 | def copy_file_with_boiler_plate(src_name, dst_name, with_boiler=True): |
| 122 | with open("java_gen/pre-written/%s" % src_name, "r") as src: |
| 123 | with open(dst_name, "w") as dst: |
| 124 | if with_boiler: |
| 125 | print_boiler_plate(os.path.basename(dst_name), dst) |
| 126 | dst.writelines(src.readlines()) |
| 127 | |
| 128 | def frob(s, **kwargs): |
| 129 | """ Step through string s and for each key in kwargs, |
| 130 | replace $key with kwargs[key] in s. |
| 131 | """ |
| 132 | for k,v in kwargs.iteritems(): |
| 133 | s = s.replace('$%s' % k, v) |
| 134 | return s |
| 135 | |
| 136 | def copy_prewrite_tree(basedir): |
| 137 | """ Recursively copy the directory structure from ./java_gen/pre-write |
| 138 | into $basedir""" |
| 139 | print "Copying pre-written files into %s" % basedir |
| 140 | # subprocess.call("cd java_gen/pre-written && tar cpf - . | ( cd ../../%s && tar xvpf - )" % basedir, |
| 141 | # shell=True) |