1 |
< |
package uk.ac.ukc.iscream.client; |
1 |
> |
/* |
2 |
> |
* i-scream central monitoring system |
3 |
> |
* http://www.i-scream.org.uk |
4 |
> |
* Copyright (C) 2000-2002 i-scream |
5 |
> |
* |
6 |
> |
* This program is free software; you can redistribute it and/or |
7 |
> |
* modify it under the terms of the GNU General Public License |
8 |
> |
* as published by the Free Software Foundation; either version 2 |
9 |
> |
* of the License, or (at your option) any later version. |
10 |
> |
* |
11 |
> |
* This program is distributed in the hope that it will be useful, |
12 |
> |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
> |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 |
> |
* GNU General Public License for more details. |
15 |
> |
* |
16 |
> |
* You should have received a copy of the GNU General Public License |
17 |
> |
* along with this program; if not, write to the Free Software |
18 |
> |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
19 |
> |
*/ |
20 |
|
|
21 |
< |
import uk.ac.ukc.iscream.client.*; |
22 |
< |
import uk.ac.ukc.iscream.clientinterface.*; |
5 |
< |
import uk.ac.ukc.iscream.componentmanager.*; |
6 |
< |
import org.omg.CosNaming.*; |
7 |
< |
import org.omg.CORBA.*; |
8 |
< |
import org.omg.PortableServer.*; |
21 |
> |
//---PACKAGE DECLARATION--- |
22 |
> |
package uk.org.iscream.cms.server.client; |
23 |
|
|
24 |
< |
public class ClientMain { |
25 |
< |
public static void main(String args[]) { |
26 |
< |
System.setProperty("org.omg.CORBA.ORBClass","jacorb.orb.ORB"); |
27 |
< |
System.setProperty("org.omg.CORBA.ORBSingletonClass","jacorb.orb.ORBSingleton"); |
28 |
< |
try { |
15 |
< |
ReferenceManager _refman = ReferenceManager.getInstance(); |
16 |
< |
_refman.activatePOA(); |
24 |
> |
//---IMPORTS--- |
25 |
> |
import uk.org.iscream.cms.server.clientinterface.*; |
26 |
> |
import uk.org.iscream.cms.server.componentmanager.*; |
27 |
> |
import uk.org.iscream.cms.server.core.*; |
28 |
> |
import uk.org.iscream.cms.server.util.*; |
29 |
|
|
30 |
< |
ClientServant corbaServant = new ClientServant(); |
31 |
< |
org.omg.CORBA.Object o = _refman.getRootPOA().servant_to_reference(corbaServant); |
32 |
< |
Client client = ClientHelper.narrow(o); |
30 |
> |
/** |
31 |
> |
* A startup component for the Local Clients. |
32 |
> |
* This class starts the CORBA client used for alerting |
33 |
> |
* purposes. It reads data using the ClientServant from CORBA |
34 |
> |
* calls by the i-scream client interface. This data is then |
35 |
> |
* used by the MonitorManager to pass to Monitors. Monitors then |
36 |
> |
* analyse the data and raise alerts if needed, these are passed to |
37 |
> |
* the Alerters, which send out alerts. They are looked after by |
38 |
> |
* the AlerterManager. |
39 |
> |
* |
40 |
> |
* @author $Author$ |
41 |
> |
* @version $Id$ |
42 |
> |
*/ |
43 |
> |
public class ClientMain implements Component { |
44 |
|
|
45 |
< |
o = _refman.getCORBARef("iscream.ClientInterface.CorbaListener"); |
23 |
< |
CorbaClientListener lRef = CorbaClientListenerHelper.narrow(o); |
45 |
> |
//---FINAL ATTRIBUTES--- |
46 |
|
|
47 |
< |
boolean result; |
48 |
< |
System.out.println(" -- connecting -- "); |
49 |
< |
CorbaControlHandler handler = lRef.connect(client); |
50 |
< |
System.out.println(" -- starting data -- "); |
51 |
< |
result = handler.startData(); |
52 |
< |
//System.out.println(" -- sleep for 30s -- "); |
53 |
< |
//Thread.sleep(30000); |
54 |
< |
//System.out.println(" -- stopping data -- "); |
55 |
< |
//result = handler.stopData(); |
56 |
< |
//Thread.sleep(2000); |
57 |
< |
//System.out.println(" -- completed -- "); |
58 |
< |
_refman.getORB().run(); |
47 |
> |
/** |
48 |
> |
* The current CVS revision of this class |
49 |
> |
*/ |
50 |
> |
public static final String REVISION = "$Revision$"; |
51 |
> |
|
52 |
> |
/** |
53 |
> |
* The friendly name for this component, used by |
54 |
> |
* all related classes. |
55 |
> |
*/ |
56 |
> |
public static final String NAME = "LocalClient"; |
57 |
> |
|
58 |
> |
//---STATIC METHODS--- |
59 |
|
|
60 |
+ |
//---CONSTRUCTORS--- |
61 |
+ |
|
62 |
+ |
//---PUBLIC METHODS--- |
63 |
+ |
|
64 |
+ |
/** |
65 |
+ |
* This starts the Local Client component. |
66 |
+ |
* This starts the ClientServant, the MonitorManager and |
67 |
+ |
* the AlerterManager, aswell as initialising any queues |
68 |
+ |
* and obtaining any initial configuration. |
69 |
+ |
* |
70 |
+ |
* @throws ComponentStartException if the component fails to start |
71 |
+ |
*/ |
72 |
+ |
public void start() throws ComponentStartException { |
73 |
+ |
// get references to key objects |
74 |
+ |
_logger = _refman.getLogger(); |
75 |
+ |
|
76 |
+ |
_logger.write(toString(), Logger.SYSINIT, "coming up"); |
77 |
+ |
|
78 |
+ |
// get a reference to the configuration proxy |
79 |
+ |
ConfigurationProxy cp = ConfigurationProxy.getInstance(); |
80 |
+ |
|
81 |
+ |
// see if these Queue's need a size limit |
82 |
+ |
try { |
83 |
+ |
int queueSizeLimit = Integer.parseInt(cp.getProperty(NAME, "Queue.SizeLimit")); |
84 |
+ |
String queueRemoveAlgorithm = cp.getProperty(NAME, "Queue.RemoveAlgorithm"); |
85 |
+ |
int algorithm = StringUtils.getStringPos(queueRemoveAlgorithm, Queue.algorithms); |
86 |
+ |
if(algorithm != -1) { |
87 |
+ |
_logger.write(toString(), Logger.DEBUG, "Starting 2 Queues with size limit of "+queueSizeLimit+", using remove algorithm "+queueRemoveAlgorithm); |
88 |
+ |
// we have valid values, so lets start it. |
89 |
+ |
_alerterQueue = new Queue(queueSizeLimit, algorithm); |
90 |
+ |
_monitorQueue = new Queue(queueSizeLimit, algorithm); |
91 |
+ |
} |
92 |
+ |
else { |
93 |
+ |
_logger.write(toString(), Logger.WARNING, "Bad Queue Algorithm configuration, not known: "+queueRemoveAlgorithm); |
94 |
+ |
// just don't activate a limit |
95 |
+ |
_alerterQueue = new Queue(); |
96 |
+ |
_monitorQueue = new Queue(); |
97 |
+ |
} |
98 |
+ |
} catch (PropertyNotFoundException e) { |
99 |
+ |
_logger.write(toString(), Logger.DEBUG, "Optional config not set: "+e); |
100 |
+ |
// just don't activate a limit |
101 |
+ |
_alerterQueue = new Queue(); |
102 |
+ |
_monitorQueue = new Queue(); |
103 |
+ |
} catch (NumberFormatException e) { |
104 |
+ |
_logger.write(toString(), Logger.WARNING, "Bad Queue SizeLimit configuration: "+e); |
105 |
+ |
// just don't activate a limit |
106 |
+ |
_alerterQueue = new Queue(); |
107 |
+ |
_monitorQueue = new Queue(); |
108 |
|
} |
109 |
< |
catch (Exception e) { |
110 |
< |
System.out.println("ERROR : " + e); |
111 |
< |
e.printStackTrace(System.out); |
109 |
> |
|
110 |
> |
// startup monitors on these queues |
111 |
> |
try { |
112 |
> |
// try to get the interval, if this fails, we won't start up the monitor |
113 |
> |
int queueMonitorInterval = Integer.parseInt(cp.getProperty(NAME, "Queue.MonitorInterval")); |
114 |
> |
_alerterQueue.startMonitor(queueMonitorInterval*1000, _monitorQueue, NAME + " Alerter"); |
115 |
> |
_monitorQueue.startMonitor(queueMonitorInterval*1000, _monitorQueue, NAME + " Monitor"); |
116 |
> |
} catch (PropertyNotFoundException e) { |
117 |
> |
_logger.write(toString(), Logger.WARNING, "failed to find queue monitor config, disabling. " + e); |
118 |
> |
} |
119 |
> |
|
120 |
> |
// setup the servant and connect |
121 |
> |
_logger.write(toString(), Logger.SYSINIT, "starting servant and connecting"); |
122 |
> |
try { |
123 |
> |
ClientServant ref = new ClientServant(_monitorQueue); |
124 |
> |
org.omg.CORBA.Object objRef = _refman.getRootPOA().servant_to_reference(ref); |
125 |
> |
Client client = ClientHelper.narrow(objRef); |
126 |
> |
|
127 |
> |
// this name maybe shouldn't be static |
128 |
> |
objRef = _refman.getCORBARef("iscream.ClientInterface\\.CorbaListener"); |
129 |
> |
CorbaClientListener listener = CorbaClientListenerHelper.narrow(objRef); |
130 |
> |
|
131 |
> |
_logger.write(toString(), Logger.SYSINIT, "connecting"); |
132 |
> |
CorbaControlHandler handler = listener.connect(client, NAME); |
133 |
> |
handler.startData(); |
134 |
|
} |
135 |
+ |
catch(Exception e) { |
136 |
+ |
// not sure what to do here |
137 |
+ |
// so we just log the error |
138 |
+ |
_logger.write(toString(), Logger.ERROR, "ERROR - " + e.getMessage()); |
139 |
+ |
} |
140 |
+ |
|
141 |
+ |
// setup the MonitorManager |
142 |
+ |
MonitorManager monMan = MonitorManager.getInstance(); |
143 |
+ |
monMan.start(); |
144 |
+ |
|
145 |
+ |
// setup the AlerterManager |
146 |
+ |
AlerterManager alertMan = AlerterManager.getInstance(); |
147 |
+ |
alertMan.start(); |
148 |
+ |
|
149 |
+ |
_logger.write(toString(), Logger.SYSINIT, "started"); |
150 |
|
} |
151 |
+ |
|
152 |
+ |
/** |
153 |
+ |
* Does a dependency check. Used mainly at startup to |
154 |
+ |
* see if the required dependencies (components) are up |
155 |
+ |
* and running. |
156 |
+ |
* |
157 |
+ |
* @return a boolean value, true if the depdencies are satisfied |
158 |
+ |
*/ |
159 |
+ |
public boolean depCheck() { |
160 |
+ |
try { |
161 |
+ |
org.omg.CORBA.Object obj; |
162 |
+ |
// first check the ConfigurationManager is alive |
163 |
+ |
obj = _refman.getCORBARef("iscream.ConfigurationManager"); |
164 |
+ |
// then get some info on the CLI |
165 |
+ |
ConfigurationProxy cp = ConfigurationProxy.getInstance(); |
166 |
+ |
String cli = cp.getProperty("RootFilter", "RootFilter.realtimeInterfaceName"); |
167 |
+ |
// finally check the CLI is alive |
168 |
+ |
obj = _refman.getCORBARef("iscream.ClientInterface\\." + cli); |
169 |
+ |
} catch(ComponentCORBAException e) { |
170 |
+ |
System.err.println(toString() + ": Dependency Failure: "+e); |
171 |
+ |
return false; |
172 |
+ |
} catch(PropertyNotFoundException e) { |
173 |
+ |
System.err.println(toString() + ": Unable to obtain configuration: "+e); |
174 |
+ |
return false; |
175 |
+ |
} |
176 |
+ |
// dependency check suceeded |
177 |
+ |
return true; |
178 |
+ |
} |
179 |
+ |
|
180 |
+ |
/** |
181 |
+ |
* Overrides the {@link java.lang.Object#toString() Object.toString()} |
182 |
+ |
* method to provide clean logging (every class should have this). |
183 |
+ |
* |
184 |
+ |
* This uses the uk.org.iscream.cms.server.util.FormatName class |
185 |
+ |
* to format the toString() |
186 |
+ |
* |
187 |
+ |
* @return the name of this class and its CVS revision |
188 |
+ |
*/ |
189 |
+ |
public String toString() { |
190 |
+ |
return FormatName.getName( |
191 |
+ |
NAME, |
192 |
+ |
getClass().getName(), |
193 |
+ |
REVISION); |
194 |
+ |
} |
195 |
+ |
|
196 |
+ |
//---PRIVATE METHODS--- |
197 |
+ |
|
198 |
+ |
//---ACCESSOR/MUTATOR METHODS--- |
199 |
+ |
|
200 |
+ |
//---ATTRIBUTES--- |
201 |
+ |
|
202 |
+ |
/** |
203 |
+ |
* This holds a reference to the |
204 |
+ |
* system logger that is being used. |
205 |
+ |
*/ |
206 |
+ |
private Logger _logger; |
207 |
+ |
|
208 |
+ |
/** |
209 |
+ |
* A reference to the reference manager in use |
210 |
+ |
*/ |
211 |
+ |
private ReferenceManager _refman = ReferenceManager.getInstance(); |
212 |
+ |
|
213 |
+ |
//---STATIC ATTRIBUTES--- |
214 |
+ |
|
215 |
+ |
/** |
216 |
+ |
* A queue for the alerter manager |
217 |
+ |
*/ |
218 |
+ |
public static Queue _alerterQueue; |
219 |
+ |
|
220 |
+ |
/** |
221 |
+ |
* A queue for the monitor manager |
222 |
+ |
*/ |
223 |
+ |
public static Queue _monitorQueue; |
224 |
|
|
225 |
|
} |