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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
import callback_gen
import dto_gen
jvpp_ifc_template = Template("""
package $base_package.$callback_facade_package;
/**
* <p>Callback Java API representation of vpe.api.
* <br>It was generated by jvpp_callback_facade_gen.py based on $inputfile
* <br>(python representation of vpe.api generated by vppapigen).
*/
public interface CallbackJVpp extends java.lang.AutoCloseable {
@Override
void close();
// TODO add send
$methods
}
""")
jvpp_impl_template = Template("""
package $base_package.$callback_facade_package;
/**
* <p>Default implementation of CallbackJVpp interface.
* <br>It was generated by jvpp_callback_facade_gen.py based on $inputfile
* <br>(python representation of vpe.api generated by vppapigen).
*/
public final class CallbackJVppFacade implements $base_package.$callback_facade_package.CallbackJVpp {
private final $base_package.JVpp jvpp;
private final java.util.Map<Integer, $base_package.$callback_package.JVppCallback> callbacks;
/**
* <p>Create CallbackJVppFacade object for provided JVpp instance.
* Constructor internally creates CallbackJVppFacadeCallback class for processing callbacks
* and then connects to provided JVpp instance
*
* @param jvpp provided $base_package.JVpp instance
*
* @throws java.io.IOException in case instance cannot connect to JVPP
*/
public CallbackJVppFacade(final $base_package.JVpp jvpp) throws java.io.IOException {
this.jvpp = java.util.Objects.requireNonNull(jvpp,"jvpp is null");
this.callbacks = new java.util.HashMap<>();
this.jvpp.connect(new CallbackJVppFacadeCallback(this.callbacks));
}
@Override
public void close() {
}
// TODO add send()
$methods
}
""")
method_template = Template(
""" void $name($base_package.$dto_package.$request request, $base_package.$callback_package.$callback callback);""")
method_impl_template = Template(""" public final void $name($base_package.$dto_package.$request request, $base_package.$callback_package.$callback callback) {
synchronized (callbacks) {
callbacks.put(jvpp.$name(request), callback);
}
}
""")
no_arg_method_template = Template(""" void $name($base_package.$callback_package.$callback callback);""")
no_arg_method_impl_template = Template(""" public final void $name($base_package.$callback_package.$callback callback) {
synchronized (callbacks) {
callbacks.put(jvpp.$name(), callback);
}
}
""")
def generate_jvpp(func_list, base_package, dto_package, callback_package, callback_facade_package, inputfile):
""" Generates callback facade """
print "Generating JVpp callback facade"
if os.path.exists(callback_facade_package):
util.remove_folder(callback_facade_package)
os.mkdir(callback_facade_package)
methods = []
methods_impl = []
for func in func_list:
if util.is_notification(func['name']) or util.is_ignored(func['name']):
# TODO handle notifications
continue
camel_case_name = util.underscore_to_camelcase(func['name'])
camel_case_name_upper = util.underscore_to_camelcase_upper(func['name'])
if util.is_reply(camel_case_name):
continue
# Strip suffix for dump calls
callback_type = get_request_name(camel_case_name_upper, func['name']) + callback_gen.callback_suffix
if len(func['args']) == 0:
methods.append(no_arg_method_template.substitute(name=camel_case_name,
base_package=base_package,
dto_package=dto_package,
callback_package=callback_package,
callback=callback_type))
methods_impl.append(no_arg_method_impl_template.substitute(name=camel_case_name,
base_package=base_package,
dto_package=dto_package,
callback_package=callback_package,
callback=callback_type))
else:
methods.append(method_template.substitute(name=camel_case_name,
request=camel_case_name_upper,
base_package=base_package,
dto_package=dto_package,
callback_package=callback_package,
callback=callback_type))
methods_impl.append(method_impl_template.substitute(name=camel_case_name,
request=camel_case_name_upper,
base_package=base_package,
dto_package=dto_package,
callback_package=callback_package,
callback=callback_type))
join = os.path.join(callback_facade_package, "CallbackJVpp.java")
jvpp_file = open(join, 'w')
jvpp_file.write(
jvpp_ifc_template.substitute(inputfile=inputfile,
methods="\n".join(methods),
base_package=base_package,
dto_package=dto_package,
callback_facade_package=callback_facade_package))
jvpp_file.flush()
jvpp_file.close()
jvpp_file = open(os.path.join(callback_facade_package, "CallbackJVppFacade.java"), 'w')
jvpp_file.write(jvpp_impl_template.substitute(inputfile=inputfile,
methods="\n".join(methods_impl),
base_package=base_package,
dto_package=dto_package,
callback_package=callback_package,
callback_facade_package=callback_facade_package))
jvpp_file.flush()
jvpp_file.close()
generate_callback(func_list, base_package, dto_package, callback_package, callback_facade_package, inputfile)
jvpp_facade_callback_template = Template("""
package $base_package.$callback_facade_package;
/**
* <p>JVppGlobalCallback implementation for Java Callback API.
* <br>It was generated by jvpp_callback_facade_gen.py based on $inputfile
* <br>(python representation of vpe.api generated by vppapigen).
*/
public final class CallbackJVppFacadeCallback implements $base_package.$callback_package.JVppGlobalCallback {
private final java.util.Map<Integer, $base_package.$callback_package.JVppCallback> requests;
public CallbackJVppFacadeCallback(final java.util.Map<Integer, $base_package.$callback_package.JVppCallback> requestMap) {
this.requests = requestMap;
}
$methods
}
""")
jvpp_facade_callback_method_template = Template("""
@Override
@SuppressWarnings("unchecked")
public void on$callback_dto($base_package.$dto_package.$callback_dto reply) {
$base_package.$callback_package.$callback callback;
synchronized(requests) {
callback = ($base_package.$callback_package.$callback) requests.remove(reply.context);
}
if(callback != null) {
callback.on$callback_dto(reply);
}
}
""")
def generate_callback(func_list, base_package, dto_package, callback_package, callback_facade_package, inputfile):
callbacks = []
for func in func_list:
if util.is_notification(func['name']) or util.is_ignored(func['name']):
# TODO handle notifications
continue
camel_case_name_with_suffix = util.underscore_to_camelcase_upper(func['name'])
if not util.is_reply(camel_case_name_with_suffix):
continue
callbacks.append(jvpp_facade_callback_method_template.substitute(base_package=base_package,
dto_package=dto_package,
callback_package=callback_package,
callback=util.remove_reply_suffix(camel_case_name_with_suffix) + callback_gen.callback_suffix,
callback_dto=camel_case_name_with_suffix))
jvpp_file = open(os.path.join(callback_facade_package, "CallbackJVppFacadeCallback.java"), 'w')
jvpp_file.write(jvpp_facade_callback_template.substitute(inputfile=inputfile,
base_package=base_package,
dto_package=dto_package,
callback_package=callback_package,
methods="".join(callbacks),
callback_facade_package=callback_facade_package))
jvpp_file.flush()
jvpp_file.close()
# Returns request name or special one from unconventional_naming_rep_req map
def get_request_name(camel_case_dto_name, func_name):
if func_name in reverse_dict(util.unconventional_naming_rep_req):
request_name = util.underscore_to_camelcase_upper(reverse_dict(util.unconventional_naming_rep_req)[func_name])
else:
request_name = camel_case_dto_name
return remove_suffix(request_name)
def reverse_dict(map):
return dict((v, k) for k, v in map.iteritems())
def remove_suffix(name):
if util.is_reply(name):
return util.remove_reply_suffix(name)
else:
if util.is_dump(name):
return util.remove_suffix(name, util.dump_suffix)
else:
return name
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