1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
#!/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 $plugin_package;
/**
* <p>Java representation of plugin's api file.
* <br>It was generated by jvpp_impl_gen.py based on $inputfile
* <br>(python representation of api file generated by vppapigen).
*/
public interface JVpp${plugin_name} extends $base_package.JVpp {
/**
* Generic dispatch method for sending requests to VPP
*
* @throws org.openvpp.jvpp.VppInvocationException if send request had failed
*/
int send($base_package.$dto_package.JVppRequest request) throws org.openvpp.jvpp.VppInvocationException;
$methods
}
""")
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 $base_package.callback.JVppCallback;
import $base_package.VppConnection;
import $base_package.JVppRegistry;
/**
* <p>Default implementation of JVpp interface.
* <br>It was generated by jvpp_impl_gen.py based on $inputfile
* <br>(python representation of api file generated by vppapigen).
*/
public final class JVpp${plugin_name}Impl implements $plugin_package.JVpp${plugin_name} {
private final static Logger LOG = Logger.getLogger(JVpp${plugin_name}Impl.class.getName());
private static final String LIBNAME = "libjvpp_${plugin_name_underscore}.so.0.0.0";
// 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${plugin_name}Impl.class.getResourceAsStream('/' + LIBNAME)) {
if (is == null) {
throw new IOException("Failed to open library resource " + LIBNAME);
}
loadStream(is);
}
}
private VppConnection connection;
private JVppRegistry registry;
private static native void init0(final JVppCallback callback, final long queueAddress, final int clientIndex);
@Override
public void init(final JVppRegistry registry, final JVppCallback callback, final long queueAddress, final int clientIndex) {
this.registry = java.util.Objects.requireNonNull(registry, "registry should not be null");
this.connection = java.util.Objects.requireNonNull(registry.getConnection(), "connection should not be null");
connection.checkActive();
init0(callback, queueAddress, clientIndex);
}
private static native void close0();
@Override
public void close() {
close0();
}
@Override
public int send($base_package.$dto_package.JVppRequest request) throws org.openvpp.jvpp.VppInvocationException {
return request.send(this);
}
@Override
public final int controlPing(final org.openvpp.jvpp.dto.ControlPing controlPing) throws org.openvpp.jvpp.VppInvocationException {
return registry.controlPing(JVpp${plugin_name}Impl.class);
}
$methods
}
""")
method_template = Template(""" int $name($plugin_package.$dto_package.$request request) throws org.openvpp.jvpp.VppInvocationException;""")
method_native_template = Template(
""" private static native int ${name}0($plugin_package.$dto_package.$request request);""")
method_impl_template = Template(""" public final int $name($plugin_package.$dto_package.$request request) throws org.openvpp.jvpp.VppInvocationException {
java.util.Objects.requireNonNull(request,"Null request object");
connection.checkActive();
int result=${name}0(request);
if(result<0){
throw new org.openvpp.jvpp.VppInvocationException("${name}",result);
}
return result;
}
""")
no_arg_method_template = Template(""" int $name() throws org.openvpp.jvpp.VppInvocationException;""")
no_arg_method_native_template = Template(""" private static native int ${name}0() throws org.openvpp.jvpp.VppInvocationException;""")
no_arg_method_impl_template = Template(""" public final int $name() throws org.openvpp.jvpp.VppInvocationException {
connection.checkActive();
int result=${name}0();
if(result<0){
throw new org.openvpp.jvpp.VppInvocationException("${name}",result);
}
return result;
}
""")
def generate_jvpp(func_list, base_package, plugin_package, plugin_name_underscore, control_ping_class, dto_package, inputfile):
""" Generates JVpp interface and JNI implementation """
print "Generating JVpp"
plugin_name = util.underscore_to_camelcase_upper(plugin_name_underscore)
methods = []
methods_impl = []
for func in func_list:
# Skip structures that are used only as notifications
if util.is_just_notification(func['name']) or util.is_ignored(func['name']):
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))
methods_impl.append(no_arg_method_native_template.substitute(name=camel_case_name))
methods_impl.append(no_arg_method_impl_template.substitute(name=camel_case_name))
else:
methods.append(method_template.substitute(name=camel_case_name,
request=camel_case_name_upper,
plugin_package=plugin_package,
dto_package=dto_package))
methods_impl.append(method_native_template.substitute(name=camel_case_name,
request=camel_case_name_upper,
plugin_package=plugin_package,
dto_package=dto_package))
methods_impl.append(method_impl_template.substitute(name=camel_case_name,
request=camel_case_name_upper,
plugin_package=plugin_package,
dto_package=dto_package))
jvpp_file = open("JVpp%s.java" % plugin_name, 'w')
jvpp_file.write(
jvpp_ifc_template.substitute(inputfile=inputfile,
methods="\n".join(methods),
base_package=base_package,
plugin_package=plugin_package,
plugin_name=plugin_name,
dto_package=dto_package))
jvpp_file.flush()
jvpp_file.close()
jvpp_file = open("JVpp%sImpl.java" % plugin_name, 'w')
jvpp_file.write(jvpp_impl_template.substitute(inputfile=inputfile,
methods="\n".join(methods_impl),
base_package=base_package,
plugin_package=plugin_package,
plugin_name=plugin_name,
plugin_name_underscore=plugin_name_underscore,
dto_package=dto_package,
control_ping_class=control_ping_class))
jvpp_file.flush()
jvpp_file.close()
|
