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
|
#!/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
import callback_gen
import util
from string import Template
notification_registry_template = Template("""
package $plugin_package.$notification_package;
/**
* <p>Registry for notification callbacks defined in ${plugin_name}.
* <br>It was generated by notification_gen.py based on $inputfile
* <br>(python representation of api file generated by vppapigen).
*/
public interface ${plugin_name}EventRegistry extends $base_package.$notification_package.EventRegistry {
$register_callback_methods
@Override
void close();
}
""")
global_notification_callback_template = Template("""
package $plugin_package.$notification_package;
/**
* <p>Aggregated callback interface for notifications only.
* <br>It was generated by notification_gen.py based on $inputfile
* <br>(python representation of api file generated by vppapigen).
*/
public interface Global${plugin_name}EventCallback$callbacks {
}
""")
notification_registry_impl_template = Template("""
package $plugin_package.$notification_package;
/**
* <p>Notification registry delegating notification processing to registered callbacks.
* <br>It was generated by notification_gen.py based on $inputfile
* <br>(python representation of api file generated by vppapigen).
*/
public final class ${plugin_name}EventRegistryImpl implements ${plugin_name}EventRegistry, Global${plugin_name}EventCallback {
// TODO add a special NotificationCallback interface and only allow those to be registered
private final java.util.concurrent.ConcurrentMap<Class<?>, $base_package.$callback_package.JVppCallback> registeredCallbacks =
new java.util.concurrent.ConcurrentHashMap<>();
private static java.util.logging.Logger LOG = java.util.logging.Logger.getLogger(${plugin_name}EventRegistryImpl.class.getName());
$register_callback_methods
$handler_methods
@Override
public void close() {
registeredCallbacks.clear();
}
@Override
public void onError(io.fd.vpp.jvpp.VppCallbackException ex) {
java.util.logging.Logger LOG = java.util.logging.Logger.getLogger(${plugin_name}EventRegistryImpl.class.getName());
LOG.log(java.util.logging.Level.WARNING, String.format("Received onError exception: call=%s, context=%d, retval=%d%n", ex.getMethodName(),
ex.getCtxId(), ex.getErrorCode()), ex);
}
}
""")
register_callback_impl_template = Template("""
public java.lang.AutoCloseable register$callback(final $plugin_package.$callback_package.$callback callback){
if(null != registeredCallbacks.putIfAbsent($plugin_package.$dto_package.$notification.class, callback)){
throw new IllegalArgumentException("Callback for " + $plugin_package.$dto_package.$notification.class +
"notification already registered");
}
return () -> registeredCallbacks.remove($plugin_package.$dto_package.$notification.class);
}
""")
handler_impl_template = Template("""
@Override
public void on$notification(
final $plugin_package.$dto_package.$notification_reply notification) {
if (LOG.isLoggable(java.util.logging.Level.FINE)) {
LOG.fine(String.format("Received $notification event message: %s", notification));
}
final $base_package.$callback_package.JVppCallback jVppCallback = registeredCallbacks.get($plugin_package.$dto_package.$notification.class);
if (null != jVppCallback) {
(($plugin_package.$callback_package.$callback) registeredCallbacks
.get($plugin_package.$dto_package.$notification.class))
.on$notification(notification);
}
}
""")
notification_provider_template = Template("""
package $plugin_package.$notification_package;
/**
* Provides ${plugin_name}EventRegistry.
* <br>The file was generated by notification_gen.py based on $inputfile
* <br>(python representation of api file generated by vppapigen).
*/
public interface ${plugin_name}EventRegistryProvider extends $base_package.$notification_package.EventRegistryProvider {
@Override
public ${plugin_name}EventRegistry getEventRegistry();
}
""")
def generate_notification_registry(func_list, base_package, plugin_package, plugin_name, notification_package, callback_package, dto_package, inputfile):
""" Generates notification registry interface and implementation """
print "Generating Notification interfaces and implementation"
if not os.path.exists(notification_package):
os.mkdir(notification_package)
callbacks = []
register_callback_methods = []
register_callback_methods_impl = []
handler_methods = []
for func in func_list:
if not util.is_reply(func['name']) and not util.is_notification(func['name']):
continue
camel_case_name_with_suffix = util.underscore_to_camelcase_upper(func['name'])
if util.is_control_ping(camel_case_name_with_suffix):
continue
notification_dto = camel_case_name_with_suffix
callback_ifc = camel_case_name_with_suffix + callback_gen.callback_suffix
fully_qualified_callback_ifc = "{0}.{1}.{2}".format(plugin_package, callback_package, callback_ifc)
callbacks.append(fully_qualified_callback_ifc)
# TODO create NotificationListenerRegistration and return that instead of AutoCloseable to better indicate
# that the registration should be closed
register_callback_methods.append("java.lang.AutoCloseable register{0}({1} callback);"
.format(callback_ifc, fully_qualified_callback_ifc))
register_callback_methods_impl.append(register_callback_impl_template.substitute(plugin_package=plugin_package,
callback_package=callback_package,
dto_package=dto_package,
notification=camel_case_name_with_suffix,
callback=callback_ifc))
handler_methods.append(handler_impl_template.substitute(base_package=base_package,
plugin_package=plugin_package,
callback_package=callback_package,
dto_package=dto_package,
notification=notification_dto,
notification_reply=camel_case_name_with_suffix,
callback=callback_ifc))
callback_file = open(os.path.join(notification_package, "%sEventRegistry.java" % plugin_name), 'w')
callback_file.write(notification_registry_template.substitute(inputfile=inputfile,
register_callback_methods="\n ".join(register_callback_methods),
base_package=base_package,
plugin_package=plugin_package,
plugin_name=plugin_name,
notification_package=notification_package))
callback_file.flush()
callback_file.close()
callback_file = open(os.path.join(notification_package, "Global%sEventCallback.java" % plugin_name), 'w')
global_notification_callback_callbacks = ""
if (callbacks):
global_notification_callback_callbacks = " extends " + ", ".join(callbacks)
callback_file.write(global_notification_callback_template.substitute(inputfile=inputfile,
callbacks=global_notification_callback_callbacks,
plugin_package=plugin_package,
plugin_name=plugin_name,
notification_package=notification_package))
callback_file.flush()
callback_file.close()
callback_file = open(os.path.join(notification_package, "%sEventRegistryImpl.java" % plugin_name), 'w')
callback_file.write(notification_registry_impl_template.substitute(inputfile=inputfile,
callback_package=callback_package,
dto_package=dto_package,
register_callback_methods="".join(register_callback_methods_impl),
handler_methods="".join(handler_methods),
base_package=base_package,
plugin_package=plugin_package,
plugin_name=plugin_name,
notification_package=notification_package))
callback_file.flush()
callback_file.close()
callback_file = open(os.path.join(notification_package, "%sEventRegistryProvider.java" % plugin_name), 'w')
callback_file.write(notification_provider_template.substitute(inputfile=inputfile,
base_package=base_package,
plugin_package=plugin_package,
plugin_name=plugin_name,
notification_package=notification_package))
callback_file.flush()
callback_file.close()
|
