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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
jvpp_ifc_template = Template("""
package $base_package;
/**
* <p>Java representation of vpe.api.
* <br>It was generated by jvpp_impl_gen.py based on $inputfile
* <br>(python representation of vpe.api generated by vppapigen).
*/
public interface JVpp extends java.lang.AutoCloseable {
/**
* Generic connect with $base_package.callback.JVppCallback callback handler
* providing connecting to VPP
*
* @param callback JVppCallback instance providing callback handling
*
* @throws java.io.IOException if connection cannot be initiated
*/
void connect($base_package.callback.JVppCallback callback) throws java.io.IOException;
/**
* Generic dispatch method for sending requests to VPP
*/
int send($base_package.$dto_package.JVppRequest request);
@Override
void close();
$methods
}
""")
jvpp_impl_template = Template("""
package $base_package;
/**
* <p>Default implementation of JVpp interface.
* <br>It was generated by jvpp_impl_gen.py based on $inputfile
* <br>(python representation of vpe.api generated by vppapigen).
*/
public final class JVppImpl implements $base_package.JVpp {
private final $base_package.VppConnection connection;
public JVppImpl(final $base_package.VppConnection connection) {
this.connection = java.util.Objects.requireNonNull(connection,"Connection is null");
}
@Override
public void connect($base_package.callback.JVppCallback callback) throws java.io.IOException {
connection.connect(callback);
}
@Override
public void close() {
connection.close();
}
@Override
public int send($base_package.$dto_package.JVppRequest request) {
return request.send(this);
}
$methods
}
""")
method_template = Template(""" int $name($base_package.$dto_package.$request request);""")
method_native_template = Template(
""" private static native int ${name}0($base_package.$dto_package.$request request);""")
method_impl_template = Template(""" public final int $name($base_package.$dto_package.$request request) {
if(request == null) {
throw new java.lang.NullPointerException("Null request object");
}
connection.checkActive();
return ${name}0(request);
}
""")
no_arg_method_template = Template(""" int $name();""")
no_arg_method_native_template = Template(""" private static native int ${name}0();""")
no_arg_method_impl_template = Template(""" public final int $name() {
connection.checkActive();
return ${name}0();
}
""")
def generate_jvpp(func_list, base_package, dto_package, inputfile):
""" Generates JVpp interface and JNI implementation """
print "Generating JVpp"
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
if len(func['args']) == 0:
methods.append(no_arg_method_template.substitute(name=camel_case_name,
base_package=base_package,
dto_package=dto_package))
methods_impl.append(
no_arg_method_native_template.substitute(name=camel_case_name,
base_package=base_package,
dto_package=dto_package))
methods_impl.append(no_arg_method_impl_template.substitute(name=camel_case_name,
base_package=base_package,
dto_package=dto_package))
else:
methods.append(method_template.substitute(name=camel_case_name,
request=camel_case_name_upper,
base_package=base_package,
dto_package=dto_package))
methods_impl.append(method_native_template.substitute(name=camel_case_name,
request=camel_case_name_upper,
base_package=base_package,
dto_package=dto_package))
methods_impl.append(method_impl_template.substitute(name=camel_case_name,
request=camel_case_name_upper,
base_package=base_package,
dto_package=dto_package))
jvpp_file = open("JVpp.java", 'w')
jvpp_file.write(
jvpp_ifc_template.substitute(inputfile=inputfile,
methods="\n".join(methods),
base_package=base_package,
dto_package=dto_package))
jvpp_file.flush()
jvpp_file.close()
jvpp_file = open("JVppImpl.java", 'w')
jvpp_file.write(jvpp_impl_template.substitute(inputfile=inputfile,
methods="\n".join(methods_impl),
base_package=base_package,
dto_package=dto_package))
jvpp_file.flush()
jvpp_file.close()
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