diff options
author | Marek Gradzki <mgradzki@cisco.com> | 2018-02-09 13:42:12 +0100 |
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committer | Neale Ranns <nranns@cisco.com> | 2018-03-02 15:22:34 +0000 |
commit | a51ccb5bb56fad29f68f9acafd458fada69bd825 (patch) | |
tree | c155c143fc1289ab33d48abbe4d7fba8f88add1b /src/vpp-api/java/jvpp/gen/jvppgen/jni_type_handlers_gen.py | |
parent | 371ca50a74a9c4f1b74c4c1b65c6fdec610fcfc3 (diff) |
jvpp: object model for jvpp generator (VPP-1184)
Introduces JSON parser which builds object model of Java API.
Also rewrites JNI translation of typedefs
to use per type translation functions
instead of code inlining.
Not covered:
- integrate with vappigen plugin (VPP-1154) or vapi parser (VPP-1155)
- use better templating engine (VPP-480)
- improvements of generator structure (e.g. VPP-1186)
Change-Id: I9e12d76c2f3c6ee041669f58e8a37917f656aa90
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>
Diffstat (limited to 'src/vpp-api/java/jvpp/gen/jvppgen/jni_type_handlers_gen.py')
-rwxr-xr-x | src/vpp-api/java/jvpp/gen/jvppgen/jni_type_handlers_gen.py | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/vpp-api/java/jvpp/gen/jvppgen/jni_type_handlers_gen.py b/src/vpp-api/java/jvpp/gen/jvppgen/jni_type_handlers_gen.py new file mode 100755 index 00000000000..eb6ab235ba5 --- /dev/null +++ b/src/vpp-api/java/jvpp/gen/jvppgen/jni_type_handlers_gen.py @@ -0,0 +1,78 @@ +#!/usr/bin/env python2 +# +# Copyright (c) 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 jni_common_gen import generate_j2c_swap, generate_j2c_identifiers, generate_c2j_swap +from jvpp_model import Class + + +def generate_type_handlers(model): + """ + Generates msg handlers for all messages except for dumps and requests (handled by vpp, not client). + :param model: meta-model of VPP API used for jVPP generation. + """ + type_handlers = [] + for t in model.types: + if not isinstance(t, Class): + continue + ref_name = t.java_name_lower + jni_identifiers = generate_j2c_identifiers(t, class_ref_name="%sClass" % ref_name, object_ref_name="_host") + type_handlers.append(_TYPE_NET_TO_HOST_TEMPLATE.substitute( + c_name=t.name, + json_filename=model.json_api_files, + json_definition=t.doc, + type_reference_name=ref_name, + class_FQN=t.jni_name, + jni_identifiers=jni_identifiers, + type_swap=generate_j2c_swap(t, struct_ref_name="_net") + )) + + type_handlers.append(_TYPE_HOST_TO_NET_TEMPLATE.substitute( + c_name=t.name, + json_filename=model.json_api_files, + json_definition=t.doc, + type_reference_name=ref_name, + class_FQN=t.jni_name, + jni_identifiers=jni_identifiers, + type_swap=generate_c2j_swap(t, object_ref_name="_host", struct_ref_name="_net") + )) + + return "\n".join(type_handlers) + +_TYPE_NET_TO_HOST_TEMPLATE = Template(""" +/** + * Host to network byte order conversion for ${c_name} type. + * Generated based on $json_filename: +$json_definition + */ +static inline void _host_to_net_${c_name}(JNIEnv * env, jobject _host, vl_api_${c_name}_t * _net) +{ + jclass ${type_reference_name}Class = (*env)->FindClass(env, "${class_FQN}"); +$jni_identifiers +$type_swap +}""") + +_TYPE_HOST_TO_NET_TEMPLATE = Template(""" +/** + * Network to host byte order conversion for ${c_name} type. + * Generated based on $json_filename: +$json_definition + */ +static inline void _net_to_host_${c_name}(JNIEnv * env, vl_api_${c_name}_t * _net, jobject _host) +{ + jclass ${type_reference_name}Class = (*env)->FindClass(env, "${class_FQN}"); +$type_swap +}""") |