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
|
/*-
* ============LICENSE_START=======================================================
* OPENECOMP - MSO
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.mso.asdc.util;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.openecomp.sdc.api.notification.INotificationData;
public class NotificationLogging implements InvocationHandler {
private static Map<Object, List<Method>> objectMethodsToLog = new HashMap<>();
private static InvocationHandler handler = new InvocationHandler() {
@Override
public Object invoke(Object arg0, Method arg1, Object[] arg2)
throws Throwable {
List<Method> methods = objectMethodsToLog.get(arg0);
if ((methods == null) || (methods.isEmpty())) {
// Do nothing for now...
return null;
}
methods.add(arg1);
return arg1.invoke(arg0, arg2);
}
};
public static InvocationHandler getHandler() {
return handler;
}
/**
*
*/
private NotificationLogging() {}
private static final String[] GETTER_PREFIXES = { "get", "is" };
public static String logNotification(INotificationData iNotif) {
if (iNotif == null) {
return "NULL";
}
Class<? extends INotificationData> clazz = iNotif.getClass();
Method[] declaredMethods = clazz.getDeclaredMethods();
if (declaredMethods == null || declaredMethods.length == 0) {
return "EMPTY"; // No declared methods in this class !!!
}
StringBuffer buffer = new StringBuffer("ASDC Notification:");
buffer.append(System.lineSeparator());
for (Method m : declaredMethods) {
if ((m != null) && isGetter(m)) {
for (String prefix : GETTER_PREFIXES) {
if (m.getName().startsWith(prefix)) {
buffer.append(m.getName().substring(prefix.length()));
break;
}
}
try {
buffer.append(testNull(m.invoke(iNotif, (Object[])null)));
} catch (IllegalAccessException | IllegalArgumentException
| InvocationTargetException e) {
buffer.append("UNREADABLE");
}
buffer.append(System.lineSeparator());
}
}
return buffer.toString();
}
private static final boolean isGetter(Method method) {
// Must start with a valid (and known) prefix
boolean prefixFound = false;
for (String prefix : GETTER_PREFIXES) {
if (method.getName().startsWith(prefix)) {
prefixFound = true;
break;
}
}
if (!prefixFound) {
return false;
}
// Must not take any input arguments
if (method.getParameterTypes().length != 0) {
return false;
}
// Must not have return type 'void'
if (void.class.equals(method.getReturnType())) {
return false;
}
// Must be public
if (!Modifier.isPublic(method.getModifiers())) {
return false;
}
return true;
}
private static String testNull(Object object) {
if (object == null) {
return "NULL";
} else if (object instanceof Integer) {
return object.toString();
} else if (object instanceof String) {
return (String) object;
} else {
return "Type not recognized";
}
}
private static void registerForLog(INotificationData objectToLog) {
INotificationData proxy = (INotificationData) Proxy.newProxyInstance(
INotificationData.class.getClassLoader(),
new Class[] { INotificationData.class },
NotificationLogging.getHandler());
objectMethodsToLog.put(proxy, new ArrayList<Method>());
}
private static <T> void methodToLog(T methodCall) {
//
}
@Override
public Object invoke(Object proxy, Method method, Object[] args)
throws Throwable {
// TODO Auto-generated method stub
return null;
}
}
|
