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
|
/*
* 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 calculator.dosgi.operations.impl;
import java.util.Dictionary;
import java.util.Hashtable;
import java.util.logging.Logger;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.service.packageadmin.PackageAdmin;
import calculator.dosgi.operations.AddService;
import calculator.dosgi.operations.DivideService;
import calculator.dosgi.operations.MultiplyService;
import calculator.dosgi.operations.SubtractService;
/**
*
*/
public class OperationsActivator implements BundleActivator {
private Logger logger = Logger.getLogger(OperationsActivator.class.getName());
public void start(BundleContext context) throws Exception {
logger.info("Starting " + context.getBundle());
Dictionary<String, Object> props = new Hashtable<String, Object>();
props.put("service.exported.configs", new String[] {"org.osgi.sca"});
props.put("service.exported.interfaces", new String[] {"*"});
logger.info("Registering " + AddService.class.getName());
props.put("sca.service", "AddComponent#service-name(Add)");
props.put("org.osgi.sca.bindings", new String[] {"{http://sample}Add"});
context.registerService(AddService.class.getName(), new AddServiceImpl(), props);
logger.info("Registering " + SubtractService.class.getName());
props.put("sca.service", "SubtractComponent#service-name(Subtract)");
props.put("org.osgi.sca.bindings", new String[] {"{http://sample}Subtract"});
context.registerService(SubtractService.class.getName(), new SubtractServiceImpl(), props);
logger.info("Registering " + MultiplyService.class.getName());
props.put("sca.service", "MultiplyComponent#service-name(Multiply)");
props.put("org.osgi.sca.bindings", new String[] {"{http://sample}Multiply"});
context.registerService(MultiplyService.class.getName(), new MultiplyServiceImpl(), props);
logger.info("Registering " + DivideService.class.getName());
props.put("sca.service", "DivideComponent#service-name(Divide)");
props.put("org.osgi.sca.bindings", new String[] {"{http://sample}Divide"});
context.registerService(DivideService.class.getName(), new DivideServiceImpl(), props);
getBundle(context, AddService.class);
}
public void stop(BundleContext context) throws Exception {
logger.info("Stopping " + context.getBundle());
// Registered services will be automatically unregistered
}
private Bundle getBundle(BundleContext bundleContext, Class<?> cls) {
PackageAdmin packageAdmin = null;
// PackageAdmin is used to resolve bundles
ServiceReference ref = bundleContext.getServiceReference("org.osgi.service.packageadmin.PackageAdmin");
if (ref != null) {
packageAdmin = (PackageAdmin)bundleContext.getService(ref);
Bundle bundle = packageAdmin.getBundle(cls);
if (bundle != null) {
logger.info(cls.getName() + " is loaded by bundle: " + bundle.getSymbolicName());
}
bundleContext.ungetService(ref);
return bundle;
}
return null;
}
}
|
