+++ /dev/null
-#!/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_request, is_dump, is_event
-
-
-def generate_java_impl(work_dir, model, logger):
- logger.debug("Generating JVpp implementation for %s" % model.json_api_files)
- messages = filter(_jvpp_impl_filter, model.messages)
- plugin_package = model.plugin_package
- methods = []
- for msg in messages:
- if msg.has_fields:
- methods.append(_JVPP_IMPL_METHOD_TEMPLATE.substitute(
- name=msg.java_name_lower,
- plugin_package=plugin_package,
- type=msg.java_name_upper))
- else:
- methods.append(_JVPP_IMPL_NO_ARG_METHOD_TEMPLATE.substitute(
- name=msg.java_name_lower,
- type=msg.java_name_upper))
-
- plugin_name = model.plugin_java_name
- jvpp_impl = _JVPP_IMPL_TEMPLATE.substitute(
- plugin_package=plugin_package,
- json_filename=model.json_api_files,
- plugin_name=model.plugin_java_name,
- plugin_name_underscore=model.plugin_name,
- methods="\n".join(methods))
-
- with open("%s/JVpp%sImpl.java" % (work_dir, plugin_name), "w") as f:
- f.write(jvpp_impl)
-
-
-def _jvpp_impl_filter(msg):
- return is_request(msg) or is_dump(msg) or is_event(msg)
-
-
-_JVPP_IMPL_TEMPLATE = Template("""package $plugin_package;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.StandardCopyOption;
-import java.nio.file.attribute.PosixFilePermission;
-import java.nio.file.attribute.PosixFilePermissions;
-import java.util.Set;
-import java.util.logging.Logger;
-import java.util.logging.Level;
-import io.fd.vpp.jvpp.callback.JVppCallback;
-import io.fd.vpp.jvpp.VppConnection;
-import io.fd.vpp.jvpp.JVppRegistry;
-
-/**
- * <p>Default implementation of JVpp interface.
- * <br>It was generated by jvpp_impl_gen.py based on $json_filename.
- * <br>(python representation of api file generated by vppapigen)
- */
-public final class JVpp${plugin_name}Impl implements $plugin_package.JVpp${plugin_name} {
-
- private final static Logger LOG = Logger.getLogger(JVpp${plugin_name}Impl.class.getName());
- private static final java.lang.String LIBNAME = "libjvpp_${plugin_name_underscore}.so";
-
- // FIXME using NativeLibraryLoader makes load fail could not find (WantInterfaceEventsReply).
- static {
- try {
- loadLibrary();
- } catch (Exception e) {
- LOG.severe("Can't find jvpp jni library: " + LIBNAME);
- throw new ExceptionInInitializerError(e);
- }
- }
-
- private static void loadStream(final InputStream is) throws IOException {
- final Set<PosixFilePermission> perms = PosixFilePermissions.fromString("rwxr-x---");
- final Path p = Files.createTempFile(LIBNAME, null, PosixFilePermissions.asFileAttribute(perms));
- try {
- Files.copy(is, p, StandardCopyOption.REPLACE_EXISTING);
-
- try {
- Runtime.getRuntime().load(p.toString());
- } catch (UnsatisfiedLinkError e) {
- throw new IOException("Failed to load library " + p, e);
- }
- } finally {
- try {
- Files.deleteIfExists(p);
- } catch (IOException e) {
- }
- }
- }
-
- private static void loadLibrary() throws IOException {
- try (final InputStream is = JVpp${plugin_name}Impl.class.getResourceAsStream('/' + LIBNAME)) {
- if (is == null) {
- throw new IOException("Failed to open library resource " + LIBNAME);
- }
- loadStream(is);
- }
- }
-
- private VppConnection connection;
- private JVppRegistry registry;
-
- private static native void init0(final JVppCallback callback, final long queueAddress, final int clientIndex);
- @Override
- public void init(final JVppRegistry registry, final JVppCallback callback, final long queueAddress, final int clientIndex) {
- this.registry = java.util.Objects.requireNonNull(registry, "registry should not be null");
- this.connection = java.util.Objects.requireNonNull(registry.getConnection(), "connection should not be null");
- connection.checkActive();
- init0(callback, queueAddress, clientIndex);
- }
-
- private static native void close0();
- @Override
- public void close() {
- close0();
- }
-
- @Override
- public int send(io.fd.vpp.jvpp.dto.JVppRequest request) throws io.fd.vpp.jvpp.VppInvocationException {
- return request.send(this);
- }
-
- @Override
- public final int controlPing(final io.fd.vpp.jvpp.dto.ControlPing controlPing) throws io.fd.vpp.jvpp.VppInvocationException {
- return registry.controlPing(JVpp${plugin_name}Impl.class);
- }
-$methods
-}
-""")
-
-_JVPP_IMPL_METHOD_TEMPLATE = Template("""
- private static native int ${name}0($plugin_package.dto.$type request);
- public final int $name($plugin_package.dto.$type request) throws io.fd.vpp.jvpp.VppInvocationException {
- java.util.Objects.requireNonNull(request, "Null request object");
- connection.checkActive();
- if (LOG.isLoggable(Level.FINE)) {
- LOG.fine(java.lang.String.format("Sending $type event message: %s", request));
- }
- int result=${name}0(request);
- if (result<0){
- throw new io.fd.vpp.jvpp.VppInvocationException("${name}", result);
- }
- return result;
- }""")
-
-_JVPP_IMPL_NO_ARG_METHOD_TEMPLATE = Template("""
- private static native int ${name}0() throws io.fd.vpp.jvpp.VppInvocationException;
- public final int $name() throws io.fd.vpp.jvpp.VppInvocationException {
- connection.checkActive();
- LOG.fine("Sending $type event message");
- int result=${name}0();
- if(result<0){
- throw new io.fd.vpp.jvpp.VppInvocationException("${name}", result);
- }
- return result;
- }""")
Code Review / vpp.git / blobdiff