Package sk.iway.iwcm.system.monitoring

Class MonitoringDB

java.lang.Object

sk.iway.iwcm.system.monitoring.MonitoringDB

public class MonitoringDB
extends Object

MonitoringDB.java Serializes and deserializes monitoring statistics into/from table cluster_monitoring, using XMLEncoder. This is done if and only if server runs in cluster configuration. Otherwise it makes no sense to persist this data, as we can take them directly from memory. Persisting this data allows us to monitor execution times on any other node, even if that node lacks administration interface.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	TYPE_COMPONENT
static final String	TYPE_DOCUMENT
static final String	TYPE_SQL

Constructor Summary

Constructors

Constructor	Description
MonitoringDB()

Method Summary

Modifier and Type	Method	Description
static List<ExecutionEntry>	getComponentStatsFor(String node)
static List<ExecutionEntry>	getDocumentStatsFor(String node)
static void	getInstance(boolean refresh)	Refresh called by ClusterRefresher
static List<ExecutionEntry>	getSqlStatsFor(String node)
static void	writeStatsToSharedTable()	Writes snapshot of stats into cluster_monitoring table

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

TYPE_SQL

public static final String TYPE_SQL

See Also:

• Constant Field Values

TYPE_COMPONENT

public static final String TYPE_COMPONENT

See Also:

• Constant Field Values

TYPE_DOCUMENT

public static final String TYPE_DOCUMENT

See Also:

• Constant Field Values

Constructor Details

MonitoringDB

public MonitoringDB()

Method Details

getInstance

public static void getInstance(boolean refresh)

Refresh called by ClusterRefresher

writeStatsToSharedTable

public static void writeStatsToSharedTable()

Writes snapshot of stats into cluster_monitoring table

getSqlStatsFor

public static List<ExecutionEntry> getSqlStatsFor(String node)

getComponentStatsFor

public static List<ExecutionEntry> getComponentStatsFor(String node)

getDocumentStatsFor

public static List<ExecutionEntry> getDocumentStatsFor(String node)