X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=extras%2Fjapi%2Fjava%2Fjvpp%2Fgen%2Fjvppgen%2Fjvpp_callback_facade_gen.py;fp=extras%2Fjapi%2Fjava%2Fjvpp%2Fgen%2Fjvppgen%2Fjvpp_callback_facade_gen.py;h=c5634de2e48babb59f64fd0d53bdf7b12b794f71;hb=cc4a5e8089967f0c266e9c5ed319c38c111004cd;hp=0000000000000000000000000000000000000000;hpb=a14c16674023bd6672ca49e3551c707702711050;p=vpp.git diff --git a/extras/japi/java/jvpp/gen/jvppgen/jvpp_callback_facade_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jvpp_callback_facade_gen.py new file mode 100644 index 00000000000..c5634de2e48 --- /dev/null +++ b/extras/japi/java/jvpp/gen/jvppgen/jvpp_callback_facade_gen.py @@ -0,0 +1,289 @@ +#!/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_model import is_control_ping, is_dump, is_request, is_event, is_control_ping_reply + + +def generate_callback_facade(work_dir, model, logger): + """ Generates callback facade """ + logger.debug("Generating JVpp callback facade for %s" % model.json_api_files) + _generate_ifc(work_dir, model), + _generate_impl(work_dir, model) + _generate_callback(work_dir, model) + + +def _generate_ifc(work_dir, model): + with open("%s/CallbackJVpp%s.java" % (work_dir, model.plugin_java_name), "w") as f: + f.write(_IFC_TEMPLATE.substitute( + plugin_package=model.plugin_package, + json_filename=model.json_api_files, + plugin_name=model.plugin_java_name, + methods=_generate_ifc_methods(model) + )) + +_IFC_TEMPLATE = Template(""" +package $plugin_package.callfacade; + +/** + *
Callback Java API representation of $plugin_package plugin.
+ *
It was generated by jvpp_callback_facade_gen.py based on $json_filename.
+ */
+public interface CallbackJVpp${plugin_name} extends io.fd.vpp.jvpp.notification.EventRegistryProvider, java.lang.AutoCloseable {
+
+ // TODO add send
+
+$methods
+}
+""")
+
+
+def _generate_ifc_methods(model):
+ plugin_package = model.plugin_package
+ methods = []
+ for msg in model.messages:
+ if is_control_ping(msg):
+ # Skip control ping managed by jvpp registry.
+ continue
+ if not (is_dump(msg) or is_request(msg)):
+ # Skip replies and messages that do not not have replies (e.g events/counters).
+ continue
+ template = _IFC_NO_ARG_METHOD_TEMPLATE
+ if msg.has_fields:
+ template = _IFC_METHOD_TEMPLATE
+ methods.append(template.substitute(
+ name=msg.java_name_lower,
+ plugin_package=plugin_package,
+ request=msg.java_name_upper,
+ reply=msg.reply_java
+ ))
+ return "\n".join(methods)
+
+_IFC_NO_ARG_METHOD_TEMPLATE = Template(
+ """ void $name($plugin_package.callback.${reply}Callback callback) throws io.fd.vpp.jvpp.VppInvocationException;""")
+
+_IFC_METHOD_TEMPLATE = Template(
+ """ void $name($plugin_package.dto.$request request, $plugin_package.callback.${reply}Callback callback) throws io.fd.vpp.jvpp.VppInvocationException;""")
+
+
+def _generate_impl(work_dir, model):
+ with open("%s/CallbackJVpp%sFacade.java" % (work_dir, model.plugin_java_name), "w") as f:
+ f.write(_IMPL_TEMPLATE.substitute(
+ plugin_package=model.plugin_package,
+ json_filename=model.json_api_files,
+ plugin_name=model.plugin_java_name,
+ methods=_generate_impl_methods(model)
+ ))
+
+_IMPL_TEMPLATE = Template("""
+package $plugin_package.callfacade;
+
+/**
+ *
Default implementation of Callback${plugin_name}JVpp interface.
+ * Create CallbackJVpp${plugin_name}Facade object for provided JVpp instance.
+ * Constructor internally creates CallbackJVppFacadeCallback class for processing callbacks
+ * and then connects to provided JVpp instance
+ *
+ * @param jvpp provided io.fd.vpp.jvpp.JVpp instance
+ *
+ * @throws java.io.IOException in case instance cannot connect to JVPP
+ */
+ public CallbackJVpp${plugin_name}Facade(final io.fd.vpp.jvpp.JVppRegistry registry, final $plugin_package.JVpp${plugin_name} jvpp) throws java.io.IOException {
+ this.jvpp = java.util.Objects.requireNonNull(jvpp,"jvpp is null");
+ this.callbacks = new java.util.HashMap<>();
+ java.util.Objects.requireNonNull(registry, "JVppRegistry should not be null");
+ registry.register(jvpp, new CallbackJVpp${plugin_name}FacadeCallback(this.callbacks, eventRegistry));
+ }
+
+ @Override
+ public $plugin_package.notification.${plugin_name}EventRegistry getEventRegistry() {
+ return eventRegistry;
+ }
+
+ @Override
+ public void close() throws Exception {
+ jvpp.close();
+ }
+
+ // TODO add send()
+
+$methods
+}
+""")
+
+
+def _generate_impl_methods(model):
+ plugin_package = model.plugin_package
+ methods = []
+ for msg in model.messages:
+ if is_control_ping(msg):
+ # Skip control ping managed by jvpp registry.
+ continue
+ if not (is_dump(msg) or is_request(msg)):
+ # Skip replies and messages that do not not have replies (e.g events/counters).
+ continue
+ template = _IMPL_NO_ARG_METHOD_TEMPLATE
+ if msg.has_fields:
+ template = _IMPL_METHOD_TEMPLATE
+ methods.append(template.substitute(
+ name=msg.java_name_lower,
+ plugin_package=plugin_package,
+ request=msg.java_name_upper,
+ reply=msg.reply_java
+ ))
+ return "\n".join(methods)
+
+_IMPL_NO_ARG_METHOD_TEMPLATE = Template(
+ """ public final void $name($plugin_package.callback.${reply}Callback callback) throws io.fd.vpp.jvpp.VppInvocationException {
+ synchronized (callbacks) {
+ callbacks.put(jvpp.$name(), callback);
+ }
+ }
+""")
+
+_IMPL_METHOD_TEMPLATE = Template(""" public final void $name($plugin_package.dto.$request request, $plugin_package.callback.${reply}Callback callback) throws io.fd.vpp.jvpp.VppInvocationException {
+ synchronized (callbacks) {
+ callbacks.put(jvpp.$name(request), callback);
+ }
+ }
+""")
+
+
+def _generate_callback(work_dir, model):
+ with open("%s/CallbackJVpp%sFacadeCallback.java" % (work_dir, model.plugin_java_name), "w") as f:
+ f.write(_CALLBACK_TEMPLATE.substitute(
+ plugin_package=model.plugin_package,
+ json_filename=model.json_api_files,
+ plugin_name=model.plugin_java_name,
+ methods=_generate_callback_methods(model)
+ ))
+
+_CALLBACK_TEMPLATE = Template("""
+package $plugin_package.callfacade;
+
+/**
+ * Implementation of JVppGlobalCallback interface for Java Callback API.
+ *
It was generated by jvpp_callback_facade_gen.py based on $json_filename.
+ */
+public final class CallbackJVpp${plugin_name}Facade implements CallbackJVpp${plugin_name} {
+
+ private final $plugin_package.JVpp${plugin_name} jvpp;
+ private final java.util.Map
It was generated by jvpp_callback_facade_gen.py based on $json_filename.
+ */
+public final class CallbackJVpp${plugin_name}FacadeCallback implements $plugin_package.callback.JVpp${plugin_name}GlobalCallback {
+
+ private final java.util.Map