org.exist.storage
Class ProcessMonitor

java.lang.Object
  org.exist.storage.ProcessMonitor

public class ProcessMonitor
extends Object

Class to keep track of all running queries in a database instance. The main purpose of this class is to signal running queries that the database is going to shut down. This is done through the XQueryWatchDog registered by each query. It is up to the query to check the watchdog's state. If it simply ignores the terminate signal, it will be killed after the shutdown timeout is reached.

Author:

wolf

Nested Class Summary

class	ProcessMonitor.FixedSizeLinkedHashMap<K,V> Linked HashMap that has a fixed size Oldest items are removed when new items are added if the max size is exceeded
static class	ProcessMonitor.JobInfo
static class	ProcessMonitor.Monitor
class	ProcessMonitor.QueryHistory

Field Summary

static String	ACTION_BACKUP
static String	ACTION_COPY_COLLECTION
static String	ACTION_MOVE_COLLECTION
static String	ACTION_REINDEX_COLLECTION
static String	ACTION_REMOVE_BINARY
static String	ACTION_REMOVE_COLLECTION
static String	ACTION_REMOVE_XML
static String	ACTION_STORE_BINARY
static String	ACTION_STORE_DOC
static String	ACTION_UNSPECIFIED
static String	ACTION_VALIDATE_DOC

Constructor Summary

ProcessMonitor()

Method Summary

void	endJob()
ProcessMonitor.QueryHistory[]	getRecentQueryHistory()
XQueryWatchDog[]	getRunningXQueries()
void	killAll(long waitTime)
void	queryCompleted(XQueryWatchDog watchdog)
void	queryStarted(XQueryWatchDog watchdog)
ProcessMonitor.JobInfo[]	runningJobs()
void	startJob(String action)
void	startJob(String action, Object addInfo)
void	startJob(String action, Object addInfo, ProcessMonitor.Monitor monitor)
void	stopRunningJobs()

Methods inherited from class java.lang.Object

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

Field Detail

ACTION_UNSPECIFIED

public static final String ACTION_UNSPECIFIED

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Constant Field Values

ACTION_VALIDATE_DOC

public static final String ACTION_VALIDATE_DOC

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Constant Field Values

ACTION_STORE_DOC

public static final String ACTION_STORE_DOC

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Constant Field Values

ACTION_STORE_BINARY

public static final String ACTION_STORE_BINARY

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Constant Field Values

ACTION_REMOVE_XML

public static final String ACTION_REMOVE_XML

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Constant Field Values

ACTION_REMOVE_BINARY

public static final String ACTION_REMOVE_BINARY

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Constant Field Values

ACTION_REMOVE_COLLECTION

public static final String ACTION_REMOVE_COLLECTION

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Constant Field Values

ACTION_REINDEX_COLLECTION

public static final String ACTION_REINDEX_COLLECTION

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Constant Field Values

ACTION_COPY_COLLECTION

public static final String ACTION_COPY_COLLECTION

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Constant Field Values

ACTION_MOVE_COLLECTION

public static final String ACTION_MOVE_COLLECTION

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Constant Field Values

ACTION_BACKUP

public static final String ACTION_BACKUP

See Also:

Constant Field Values

Constructor Detail

ProcessMonitor

public ProcessMonitor()

Method Detail

startJob

public void startJob(String action)

startJob

public void startJob(String action,
                     Object addInfo)

startJob

public void startJob(String action,
                     Object addInfo,
                     ProcessMonitor.Monitor monitor)

endJob

public void endJob()

runningJobs

public ProcessMonitor.JobInfo[] runningJobs()

stopRunningJobs

public void stopRunningJobs()

queryStarted

public void queryStarted(XQueryWatchDog watchdog)

queryCompleted

public void queryCompleted(XQueryWatchDog watchdog)

getRecentQueryHistory

public ProcessMonitor.QueryHistory[] getRecentQueryHistory()

killAll

public void killAll(long waitTime)

getRunningXQueries

public XQueryWatchDog[] getRunningXQueries()