blob: b71751f01f5b45aa00a5eccfd3b0fa5744b9df60 (
plain)
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
|
/*-
* ============LICENSE_START=======================================================
* Integrity Monitor
* ================================================================================
* Copyright (C) 2017-2018 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.onap.policy.common.im.jmx;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import javax.management.MBeanServerConnection;
import javax.management.Notification;
import javax.management.NotificationListener;
import javax.management.remote.JMXConnectionNotification;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
import org.onap.policy.common.im.IntegrityMonitorException;
import org.onap.policy.common.logging.flexlogger.FlexLogger;
import org.onap.policy.common.logging.flexlogger.Logger;
/**
* Class to create a JMX RMI connection to the JmxAgent.
*/
public final class JmxAgentConnection {
private static final Logger logger = FlexLogger.getLogger(JmxAgentConnection.class);
private static final String DEFAULT_HOST = "localhost";
private static final String DEFAULT_PORT = "9996";
private String host;
private String port;
private JMXConnector connector;
private String jmxUrl = null;
/**
* Set up the host/port from the properties. Use defaults if missing from the properties.
*/
public JmxAgentConnection() {
host = DEFAULT_HOST;
port = DEFAULT_PORT;
}
public JmxAgentConnection(String url) {
jmxUrl = url;
}
/**
* Generate jmxAgent url. service:jmx:rmi:///jndi/rmi://host.domain:9999/jmxAgent
*
* @param host host.domain
* @param port 9999
* @return jmxAgent url.
*/
private static String jmxAgentUrl(String host, String port) {
return "service:jmx:rmi:///jndi/rmi://" + host + ":" + port + "/jmxrmi";
}
/**
* Get a connection to the jmxAgent MBeanServer.
*
* @return the connection
* @throws IntegrityMonitorException on error
*/
public MBeanServerConnection getMBeanConnection() throws IntegrityMonitorException {
try {
JMXServiceURL url;
if (jmxUrl == null) {
url = new JMXServiceURL(jmxAgentUrl(host, port));
} else {
url = new JMXServiceURL(jmxUrl);
}
Map<String, Object> env = new HashMap<>();
connector = JMXConnectorFactory.newJMXConnector(url, env);
connector.connect();
connector.addConnectionNotificationListener(new NotificationListener() {
@Override
public void handleNotification(Notification notification, Object handback) {
if (notification.getType().equals(JMXConnectionNotification.FAILED)) {
// handle disconnect
disconnect();
}
}
}, null, null);
return connector.getMBeanServerConnection();
} catch (IOException e) {
throw new IntegrityMonitorException(e);
}
}
/**
* Disconnect.
*/
public void disconnect() {
if (connector != null) {
try {
connector.close();
} catch (IOException e) {
logger.debug(e);
}
}
}
}
|
