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
|
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package helloworld;
import java.util.Hashtable;
import org.osgi.framework.BundleContext;
import org.osgi.framework.InvalidSyntaxException;
import org.osgi.framework.ServiceEvent;
import org.osgi.framework.ServiceListener;
import org.osgi.framework.ServiceReference;
import org.osgi.framework.BundleActivator;
import org.osoa.sca.annotations.AllowsPassByReference;
public class OSGiGreetingsImpl implements Greetings, ServiceListener, BundleActivator {
private Greetings greetingsService;
private BundleContext bundleContext;
public String[] getGreetingsFromOSGi(String s[]) {
for (int i = 0; i < s.length; i++) {
s[i] = "Hello " + s[i] + "(From OSGi)";
}
return greetingsService.getGreetingsFromOSGi(s);
}
public String[] getGreetingsFromJava(String s[]) {
for (int i = 0; i < s.length; i++) {
s[i] = s[i] + "(From OSGi)";
}
return s;
}
@AllowsPassByReference
public String[] getModifiedGreetingsFromOSGi(String s[]) {
for (int i = 0; i < s.length; i++) {
s[i] = "Hello " + s[i] + "(From OSGi)";
}
return greetingsService.getModifiedGreetingsFromOSGi(s);
}
@AllowsPassByReference
public String[] getModifiedGreetingsFromJava(String s[]) {
for (int i = 0; i < s.length; i++) {
s[i] = s[i] + "(From OSGi)";
}
return s;
}
public void start(BundleContext bc) {
System.out.println("Started OsgiGreetingsImpl bundle ");
this.bundleContext = bc;
Hashtable<String, Object> serviceProps = new Hashtable<String, Object>();
serviceProps.put("component.service.name", "OSGiGreetingsComponent/Greetings");
bundleContext.registerService("helloworld.Greetings", this, serviceProps);
ServiceReference ref = bundleContext.getServiceReference("helloworld.Greetings");
if (ref != null)
greetingsService = (helloworld.Greetings)bundleContext.getService(ref);
else {
try {
String filter = "(objectclass=helloworld.Greetings)";
this.bundleContext.addServiceListener(this, filter);
} catch (InvalidSyntaxException e) {
e.printStackTrace();
}
}
}
public void stop(BundleContext bc) {
}
public void serviceChanged(ServiceEvent event) {
try {
if (event.getType() == ServiceEvent.REGISTERED) {
ServiceReference ref = event.getServiceReference();
greetingsService = (helloworld.Greetings) bundleContext.getService(ref);
}
} catch (Throwable e) {
e.printStackTrace();
}
}
}
|
