| 10 |
|
/** |
| 11 |
|
* A manager for the Monitors. |
| 12 |
|
* |
| 13 |
+ |
* This class starts by loading all the monitors as specificed in the configuration. |
| 14 |
+ |
* These monitors should implement the PluginMonitor interface. |
| 15 |
+ |
* |
| 16 |
+ |
* This class then takes the feed of data coming in over CORBA from |
| 17 |
+ |
* the ClientServant queue. This data is then looked at to determine |
| 18 |
+ |
* type. It then places it into either a data queue, a heartbeat queue or |
| 19 |
+ |
* an other queue, and all data in the the all queue. |
| 20 |
+ |
* |
| 21 |
+ |
* Monitors then read the data off the queue that they are interested in |
| 22 |
+ |
* and process the data accordingly. |
| 23 |
+ |
* |
| 24 |
|
* @author $Author$ |
| 25 |
|
* @version $Id$ |
| 26 |
|
*/ |
| 27 |
< |
class MonitorManager extends Thread { |
| 27 |
> |
public class MonitorManager extends Thread { |
| 28 |
|
|
| 29 |
|
//---FINAL ATTRIBUTES--- |
| 30 |
|
|
| 39 |
|
* Return a reference to the single class. |
| 40 |
|
* Construct it if it does not already exist, otherwise just return the reference. |
| 41 |
|
*/ |
| 42 |
< |
public static MonitorManager getInstance() { |
| 42 |
> |
public synchronized static MonitorManager getInstance() { |
| 43 |
|
if (_instance == null){ |
| 44 |
|
_instance = new MonitorManager(); |
| 45 |
|
} |
| 48 |
|
|
| 49 |
|
//---CONSTRUCTORS--- |
| 50 |
|
|
| 51 |
+ |
/** |
| 52 |
+ |
* Constructs a new MonitorManager. |
| 53 |
+ |
* This initialises all the queues and loads |
| 54 |
+ |
* all the Monitors that have been specified in the configuration |
| 55 |
+ |
*/ |
| 56 |
|
private MonitorManager() { |
| 57 |
|
// set our name |
| 58 |
|
setName("client.MonitorManager"); |
| 62 |
|
_logger.write(toString(), Logger.SYSINIT, "Initialising"); |
| 63 |
|
_logger.write(toString(), Logger.SYSMSG, "Creating monitor pipeline for plugin monitors ..."); |
| 64 |
|
|
| 65 |
+ |
// get the config proxy |
| 66 |
+ |
ConfigurationProxy cp = ConfigurationProxy.getInstance(); |
| 67 |
+ |
|
| 68 |
+ |
// get the configuration for our outgoing queue's |
| 69 |
+ |
|
| 70 |
+ |
// see if these Queue's need a size limit |
| 71 |
+ |
try { |
| 72 |
+ |
int queueSizeLimit = Integer.parseInt(cp.getProperty(_name, "Queue.SizeLimit")); |
| 73 |
+ |
String queueRemoveAlgorithm = cp.getProperty(_name, "Queue.RemoveAlgorithm"); |
| 74 |
+ |
int algorithm = StringUtils.getStringPos(queueRemoveAlgorithm, Queue.algorithms); |
| 75 |
+ |
if(algorithm != -1) { |
| 76 |
+ |
_logger.write(toString(), Logger.DEBUG, "Starting 4 Queues with size limit of "+queueSizeLimit+", using remove algorithm "+queueRemoveAlgorithm); |
| 77 |
+ |
// we have valid values, so lets start it. |
| 78 |
+ |
_dataQueue = new Queue(queueSizeLimit, algorithm); |
| 79 |
+ |
_heartbeatQueue = new Queue(queueSizeLimit, algorithm); |
| 80 |
+ |
_otherQueue = new Queue(queueSizeLimit, algorithm); |
| 81 |
+ |
_allQueue = new Queue(queueSizeLimit, algorithm); |
| 82 |
+ |
} |
| 83 |
+ |
else { |
| 84 |
+ |
_logger.write(toString(), Logger.WARNING, "Bad Queue Algorithm configuration, not known: "+queueRemoveAlgorithm); |
| 85 |
+ |
// just don't activate a limit |
| 86 |
+ |
_dataQueue = new Queue(); |
| 87 |
+ |
_heartbeatQueue = new Queue(); |
| 88 |
+ |
_otherQueue = new Queue(); |
| 89 |
+ |
_allQueue = new Queue(); |
| 90 |
+ |
} |
| 91 |
+ |
} catch (PropertyNotFoundException e) { |
| 92 |
+ |
_logger.write(toString(), Logger.DEBUG, "Optional config not set: "+e); |
| 93 |
+ |
// just don't activate a limit |
| 94 |
+ |
_dataQueue = new Queue(); |
| 95 |
+ |
_heartbeatQueue = new Queue(); |
| 96 |
+ |
_otherQueue = new Queue(); |
| 97 |
+ |
_allQueue = new Queue(); |
| 98 |
+ |
} catch (NumberFormatException e) { |
| 99 |
+ |
_logger.write(toString(), Logger.WARNING, "Bad Queue SizeLimit configuration: "+e); |
| 100 |
+ |
// just don't activate a limit |
| 101 |
+ |
_dataQueue = new Queue(); |
| 102 |
+ |
_heartbeatQueue = new Queue(); |
| 103 |
+ |
_otherQueue = new Queue(); |
| 104 |
+ |
_allQueue = new Queue(); |
| 105 |
+ |
} |
| 106 |
+ |
|
| 107 |
+ |
// startup monitors on these queues |
| 108 |
+ |
try { |
| 109 |
+ |
// try to get the interval, if this fails, we won't start up the monitor |
| 110 |
+ |
int queueMonitorInterval = Integer.parseInt(cp.getProperty(_name, "Queue.MonitorInterval")); |
| 111 |
+ |
_dataQueue.startMonitor(queueMonitorInterval*1000, ClientMain._monitorQueue, _name + " DataQueue"); |
| 112 |
+ |
_heartbeatQueue.startMonitor(queueMonitorInterval*1000, ClientMain._monitorQueue, _name + " HeartbeatQueue"); |
| 113 |
+ |
_otherQueue.startMonitor(queueMonitorInterval*1000, ClientMain._monitorQueue, _name + " OtherQueue"); |
| 114 |
+ |
_allQueue.startMonitor(queueMonitorInterval*1000, ClientMain._monitorQueue, _name + " AllQueue"); |
| 115 |
+ |
} catch (PropertyNotFoundException e) { |
| 116 |
+ |
_logger.write(toString(), Logger.WARNING, "failed to find queue monitor config, disabling. " + e); |
| 117 |
+ |
} |
| 118 |
+ |
|
| 119 |
|
// get the configuration for this plug-in setup |
| 120 |
< |
Configuration config = _refman.getCM().getConfiguration(_name); |
| 121 |
< |
String pluginsPackage = config.getProperty("Monitor.PluginsPackage"); |
| 122 |
< |
String pluginsList = config.getProperty("Monitor.Plugins"); |
| 120 |
> |
String pluginsPackage, pluginsList; |
| 121 |
> |
try { |
| 122 |
> |
pluginsPackage = cp.getProperty(_name, "Monitor.PluginsPackage"); |
| 123 |
> |
pluginsList = cp.getProperty(_name, "Monitor.Plugins"); |
| 124 |
> |
} catch(PropertyNotFoundException e) { |
| 125 |
> |
_logger.write(toString(), Logger.WARNING, "Unable to get required configuration, Monitor's will not be activated: "+e); |
| 126 |
> |
// setting these will ensure we don't build a pipeline |
| 127 |
> |
pluginsPackage = ""; |
| 128 |
> |
pluginsList = ""; |
| 129 |
> |
} |
| 130 |
|
|
| 131 |
|
StringTokenizer st = new StringTokenizer(pluginsList, ";"); |
| 132 |
|
|
| 155 |
|
|
| 156 |
|
//---PUBLIC METHODS--- |
| 157 |
|
|
| 158 |
+ |
/** |
| 159 |
+ |
* Runs the MonitorManager. This reads data from the |
| 160 |
+ |
* inbound queue (from the ClientServant). And passes |
| 161 |
+ |
* it into the appropriate queue for processing by the monitor |
| 162 |
+ |
* threads. |
| 163 |
+ |
*/ |
| 164 |
|
public void run() { |
| 165 |
|
// construct now, and use multiple times |
| 166 |
|
XMLPacketMaker xmlPacketMaker = new XMLPacketMaker(); |
| 187 |
|
// skip the rest of this loop iteration |
| 188 |
|
continue; |
| 189 |
|
} |
| 190 |
< |
|
| 191 |
< |
// for each monitor in the pipeline... |
| 192 |
< |
Iterator pluginMonitors = _monitorPipeline.iterator(); |
| 193 |
< |
while (pluginMonitors.hasNext()){ |
| 111 |
< |
PluginMonitor monitor = (PluginMonitor)pluginMonitors.next(); |
| 112 |
< |
monitor.analysePacket(packet); |
| 190 |
> |
|
| 191 |
> |
// examine the packet and place it in the relevant outgoing queue |
| 192 |
> |
if(packet.getParam("packet.attributes.type").equals("data")) { |
| 193 |
> |
_dataQueue.add(packet); |
| 194 |
|
} |
| 195 |
+ |
else if(packet.getParam("packet.attributes.type").equals("heartbeat")) { |
| 196 |
+ |
_heartbeatQueue.add(packet); |
| 197 |
+ |
} |
| 198 |
+ |
else { |
| 199 |
+ |
_otherQueue.add(packet); |
| 200 |
+ |
} |
| 201 |
+ |
// always add to all queue |
| 202 |
+ |
_allQueue.add(packet); |
| 203 |
|
} |
| 204 |
|
} |
| 205 |
|
|
| 222 |
|
//---PRIVATE METHODS--- |
| 223 |
|
|
| 224 |
|
//---ACCESSOR/MUTATOR METHODS--- |
| 225 |
< |
|
| 225 |
> |
|
| 226 |
> |
/** |
| 227 |
> |
* Allows Monitors to obtain |
| 228 |
> |
* the queue of data packets |
| 229 |
> |
*/ |
| 230 |
> |
public Queue getDataQueue() { |
| 231 |
> |
return _dataQueue; |
| 232 |
> |
} |
| 233 |
> |
|
| 234 |
> |
/** |
| 235 |
> |
* Allows Monitors to obtain |
| 236 |
> |
* the queue of heatbeat packets |
| 237 |
> |
*/ |
| 238 |
> |
public Queue getHeartbeatQueue() { |
| 239 |
> |
return _heartbeatQueue; |
| 240 |
> |
} |
| 241 |
> |
|
| 242 |
> |
/** |
| 243 |
> |
* Allows Monitors to obtain |
| 244 |
> |
* the queue of all other packets |
| 245 |
> |
*/ |
| 246 |
> |
public Queue getOtherQueue() { |
| 247 |
> |
return _otherQueue; |
| 248 |
> |
} |
| 249 |
> |
|
| 250 |
> |
/** |
| 251 |
> |
* In case a Monitor wants more |
| 252 |
> |
* than one type of packet, |
| 253 |
> |
* this queue can be obtained. |
| 254 |
> |
*/ |
| 255 |
> |
public Queue getAllQueue() { |
| 256 |
> |
return _allQueue; |
| 257 |
> |
} |
| 258 |
> |
|
| 259 |
|
//---ATTRIBUTES--- |
| 260 |
|
|
| 261 |
|
/** |
| 281 |
|
private ReferenceManager _refman = ReferenceManager.getInstance(); |
| 282 |
|
|
| 283 |
|
/** |
| 284 |
< |
* A reference to our Queue |
| 284 |
> |
* A reference to our incoming Queue |
| 285 |
|
*/ |
| 286 |
|
private Queue _queue; |
| 287 |
|
|
| 288 |
|
/** |
| 289 |
< |
* Our queue ID |
| 289 |
> |
* Our incoming queue ID |
| 290 |
|
*/ |
| 291 |
|
private int _qID; |
| 292 |
|
|
| 299 |
|
* LinkedList for holding the PluginMonitor objects (the pipeline). |
| 300 |
|
*/ |
| 301 |
|
private LinkedList _monitorPipeline = new LinkedList(); |
| 302 |
< |
|
| 302 |
> |
|
| 303 |
> |
/** |
| 304 |
> |
* Outgoing data Queue |
| 305 |
> |
*/ |
| 306 |
> |
private Queue _dataQueue; |
| 307 |
> |
|
| 308 |
> |
/** |
| 309 |
> |
* Outgoing heartbeat Queue |
| 310 |
> |
*/ |
| 311 |
> |
private Queue _heartbeatQueue; |
| 312 |
> |
|
| 313 |
> |
/** |
| 314 |
> |
* Outgoing other Queue |
| 315 |
> |
*/ |
| 316 |
> |
private Queue _otherQueue; |
| 317 |
> |
|
| 318 |
> |
/** |
| 319 |
> |
* Outgoing ALL Queue |
| 320 |
> |
*/ |
| 321 |
> |
private Queue _allQueue; |
| 322 |
> |
|
| 323 |
|
//---STATIC ATTRIBUTES--- |
| 324 |
|
|
| 325 |
|
/** |
