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#!/usr/bin/env python
#
# Copyright (c) 2016 Cisco and/or its affiliates.
# 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 os, util
from string import Template
dto_template = Template("""
package $base_package.$dto_package;
/**
* <p>This class represents $description.
* <br>It was generated by dto_gen.py based on $inputfile preparsed data:
* <pre>
$docs
* </pre>
*/
public final class $cls_name implements $base_package.$dto_package.$base_type {
$fields
$methods
}
""")
field_template = Template(""" public $type $name;\n""")
send_template = Template(""" @Override
public int send(final $base_package.JVpp jvpp) throws org.openvpp.jvpp.VppInvocationException {
return jvpp.$method_name($args);
}\n""")
def generate_dtos(func_list, base_package, dto_package, inputfile):
""" Generates dto objects in a dedicated package """
print "Generating DTOs"
if not os.path.exists(dto_package):
raise Exception("%s folder is missing" % dto_package)
for func in func_list:
camel_case_dto_name = util.underscore_to_camelcase_upper(func['name'])
camel_case_method_name = util.underscore_to_camelcase(func['name'])
dto_path = os.path.join(dto_package, camel_case_dto_name + ".java")
if util.is_notification(func['name']) or util.is_ignored(func['name']):
# TODO handle notifications
continue
fields = ""
for t in zip(func['types'], func['args']):
# for retval don't generate dto field in Reply
field_name = util.underscore_to_camelcase(t[1])
if util.is_reply(camel_case_dto_name) and util.is_retval_field(field_name):
continue
fields += field_template.substitute(type=util.jni_2_java_type_mapping[t[0]],
name=field_name)
methods = ""
base_type = ""
if util.is_reply(camel_case_dto_name):
description = "vpe.api reply DTO"
request_dto_name = get_request_name(camel_case_dto_name, func['name'])
if util.is_details(camel_case_dto_name):
# FIXME assumption that dump calls end with "Dump" suffix. Not enforced in vpe.api
base_type += "JVppReply<%s.%s.%s>" % (base_package, dto_package, request_dto_name + "Dump")
generate_dump_reply_dto(request_dto_name, base_package, dto_package, camel_case_dto_name,
camel_case_method_name, func)
else:
base_type += "JVppReply<%s.%s.%s>" % (base_package, dto_package, request_dto_name)
else:
args = "" if fields is "" else "this"
methods = send_template.substitute(method_name=camel_case_method_name,
base_package=base_package,
args=args)
if util.is_dump(camel_case_dto_name):
base_type += "JVppDump"
description = "vpe.api dump request DTO"
else:
base_type += "JVppRequest"
description = "vpe.api request DTO"
dto_file = open(dto_path, 'w')
dto_file.write(dto_template.substitute(inputfile=inputfile,
description=description,
docs=util.api_message_to_javadoc(func),
cls_name=camel_case_dto_name,
fields=fields,
methods=methods,
base_package=base_package,
base_type=base_type,
dto_package=dto_package))
dto_file.flush()
dto_file.close()
flush_dump_reply_dtos(inputfile)
dump_dto_suffix = "ReplyDump"
dump_reply_artificial_dtos = {}
# Returns request name or special one from unconventional_naming_rep_req map
def get_request_name(camel_case_dto_name, func_name):
return util.underscore_to_camelcase_upper(
util.unconventional_naming_rep_req[func_name]) if func_name in util.unconventional_naming_rep_req \
else util.remove_reply_suffix(camel_case_dto_name)
def flush_dump_reply_dtos(inputfile):
for dump_reply_artificial_dto in dump_reply_artificial_dtos.values():
dto_path = os.path.join(dump_reply_artificial_dto['dto_package'],
dump_reply_artificial_dto['cls_name'] + ".java")
dto_file = open(dto_path, 'w')
dto_file.write(dto_template.substitute(inputfile=inputfile,
description="vpe.api dump reply wrapper",
docs=dump_reply_artificial_dto['docs'],
cls_name=dump_reply_artificial_dto['cls_name'],
fields=dump_reply_artificial_dto['fields'],
methods=dump_reply_artificial_dto['methods'],
base_package=dump_reply_artificial_dto['base_package'],
base_type=dump_reply_artificial_dto['base_type'],
dto_package=dump_reply_artificial_dto['dto_package']))
dto_file.flush()
dto_file.close()
def generate_dump_reply_dto(request_dto_name, base_package, dto_package, camel_case_dto_name, camel_case_method_name,
func):
base_type = "JVppReplyDump<%s.%s.%s, %s.%s.%s>" % (
base_package, dto_package, util.remove_reply_suffix(camel_case_dto_name) + "Dump",
base_package, dto_package, camel_case_dto_name)
fields = " public java.util.List<%s> %s = new java.util.ArrayList<>();" % (camel_case_dto_name, camel_case_method_name)
cls_name = camel_case_dto_name + dump_dto_suffix
# In case of already existing artificial reply dump DTO, just update it
# Used for sub-dump dtos
if request_dto_name in dump_reply_artificial_dtos.keys():
dump_reply_artificial_dtos[request_dto_name]['fields'] = \
dump_reply_artificial_dtos[request_dto_name]['fields'] + '\n' + fields
else:
dump_reply_artificial_dtos[request_dto_name] = ({'docs': util.api_message_to_javadoc(func),
'cls_name': cls_name,
'fields': fields,
'methods': "",
'base_package': base_package,
'base_type': base_type,
'dto_package': dto_package,
})
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