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#!/usr/bin/env python2
#
# Copyright (c) 2016,2018 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.
from string import Template
from jvpp_common_gen import generate_hash_code, generate_equals, generate_to_string, generate_fields
from jvpp_model import is_request, is_reply, is_retval, is_dump, is_details, is_event, is_control_ping, \
is_control_ping_reply
def generate_dtos(work_dir, model, logger):
logger.debug("Generating DTOs for %s " % model.json_api_files)
_generate_message_dtos(work_dir, model, logger)
_generate_dump_reply_wrappers(work_dir, model, logger)
def _generate_message_dtos(work_dir, model, logger):
for msg in model.messages:
logger.debug("Generating DTO for message %s", msg)
class_name = msg.java_name_upper
if is_control_ping(msg) or is_control_ping_reply(msg):
# Skip control_ping managed by jvpp registry.
continue
if is_request(msg):
dto = _generate_request_dto(msg, model, base_type="JVppRequest")
elif is_dump(msg):
dto = _generate_request_dto(msg, model, base_type="JVppDump")
elif is_reply(msg) or is_details(msg):
dto = _generate_reply_dto(msg, model)
elif is_event(msg):
dto = _generate_event_dto(msg, model)
else:
logger.warn("Failed to generate DTO for: %s. Message type is not supported." % msg)
continue
with open("%s/%s.java" % (work_dir, class_name), "w") as f:
f.write(dto)
def _generate_request_dto(msg, model, base_type):
msg_java_name_upper = msg.java_name_upper
fields = msg.fields
return _REQUEST_TEMPLATE.substitute(
plugin_package=model.plugin_package,
json_filename=model.json_api_files,
json_definition=msg.doc,
class_name=msg_java_name_upper,
base_type=base_type,
fields=generate_fields(fields),
hash_code=generate_hash_code(fields),
equals=generate_equals(msg_java_name_upper, fields),
to_string=generate_to_string(msg_java_name_upper, fields),
send=_generate_send(model, msg))
_REQUEST_TEMPLATE = Template("""
package $plugin_package.dto;
/**
* <p>This class represents request DTO.
* <br>It was generated by dto_gen.py based on $json_filename:
* <pre>
$json_definition
* </pre>
*/
public final class $class_name implements io.fd.vpp.jvpp.dto.$base_type {
$fields
$hash_code
$equals
$to_string
$send
}
""")
def _generate_send(model, msg):
return _SEND_TEMPLATE.substitute(
plugin_package=model.plugin_package,
plugin_name=model.plugin_java_name,
method_name=msg.java_name_lower,
args="this" if msg.has_fields else ""
)
_SEND_TEMPLATE = Template("""
@Override
public int send(final io.fd.vpp.jvpp.JVpp jvpp) throws io.fd.vpp.jvpp.VppInvocationException {
return (($plugin_package.JVpp${plugin_name})jvpp).$method_name($args);
}""")
def _generate_reply_dto(msg, model):
msg_java_name_upper = msg.java_name_upper
# Negative retval is mapped to java exception, so filter it out:
fields = filter(lambda field: not is_retval(field), msg.fields)
return _REPLY_TEMPLATE.substitute(
plugin_package=model.plugin_package,
json_filename=model.json_api_files,
json_definition=msg.doc,
class_name=msg_java_name_upper,
request_name=msg.request_java,
fields=generate_fields(fields),
hash_code=generate_hash_code(fields),
equals=generate_equals(msg_java_name_upper, fields),
to_string=generate_to_string(msg_java_name_upper, fields))
_REPLY_TEMPLATE = Template("""
package $plugin_package.dto;
/**
* <p>This class represents reply DTO.
* <br>It was generated by jvpp_dto_gen.py based on $json_filename:
* <pre>
$json_definition
* </pre>
*/
public final class $class_name implements io.fd.vpp.jvpp.dto.JVppReply<$plugin_package.dto.$request_name> {
$fields
$hash_code
$equals
$to_string
}
""")
def _generate_event_dto(msg, model):
msg_java_name_upper = msg.java_name_upper
# Negative retval is mapped to java exception, so filter it out:
fields = filter(lambda field: not is_retval(field), msg.fields)
return _EVENT_TEMPLATE.substitute(
plugin_package=model.plugin_package,
json_filename=model.json_api_files,
json_definition=msg.doc,
class_name=msg_java_name_upper,
fields=generate_fields(fields),
hash_code=generate_hash_code(fields),
equals=generate_equals(msg_java_name_upper, fields),
to_string=generate_to_string(msg_java_name_upper, fields))
_EVENT_TEMPLATE = Template("""
package $plugin_package.dto;
/**
* <p>This class represents event DTO.
* <br>It was generated by jvpp_dto_gen.py based on $json_filename:
* <pre>
$json_definition
* </pre>
*/
public final class $class_name {
$fields
$hash_code
$equals
$to_string
}
""")
def _generate_dump_reply_wrappers(work_dir, model, logger):
for msg in model.messages:
if is_details(msg):
logger.debug("Generating ReplyDump DTO for message %s", msg)
details_class = msg.java_name_upper
dto = _REPLY_DUMP_TEMPLATE.substitute(
plugin_package=model.plugin_package,
json_filename=model.json_api_files,
json_definition=msg.doc,
details_class=details_class,
details_field=msg.java_name_lower,
dump_class=msg.request_java
)
with open("%s/%sReplyDump.java" % (work_dir, details_class), "w") as f:
f.write(dto)
_REPLY_DUMP_TEMPLATE = Template("""
package $plugin_package.dto;
/**
* <p>This class represents dump reply wrapper.
* <br>It was generated by jvpp_dto_gen.py based on $json_filename:
* <pre>
$json_definition
* </pre>
*/
public final class ${details_class}ReplyDump implements io.fd.vpp.jvpp.dto.JVppReplyDump<${plugin_package}.dto.${dump_class}, ${plugin_package}.dto.${details_class}> {
public java.util.List<${details_class}> ${details_field} = new java.util.ArrayList<>();
@Override
@io.fd.vpp.jvpp.coverity.SuppressFBWarnings("UWF_UNWRITTEN_PUBLIC_OR_PROTECTED_FIELD")
public int hashCode() {
return java.util.Objects.hash(${details_field});
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
final ${details_class}ReplyDump other = (${details_class}ReplyDump) o;
if (!java.util.Objects.equals(this.${details_field}, other.${details_field})) {
return false;
}
return true;
}
@Override
public String toString() {
return "${details_class}ReplyDump{" +
"${details_field}=" + ${details_field} + "}";
}
}
""")
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