Package org.apache.manifoldcf.crawler.jobs

Class TrackerClass

java.lang.Object

org.apache.manifoldcf.crawler.jobs.TrackerClass

public class TrackerClass
extends java.lang.Object

Debugging class to keep track of recent modifications to the jobqueue table, along with context as to where it occurred. If a jobqueue state error occurs, we can then print out all of the pertinent history and find the culprit.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	TrackerClass.CommitEvent
protected static class	TrackerClass.DataChange
protected static class	TrackerClass.GlobalChange
protected static class	TrackerClass.HistoryRecord
protected static class	TrackerClass.JobChange
protected static class	TrackerClass.PrecommitEvent
protected static class	TrackerClass.PrereadEvent
protected static class	TrackerClass.ReadEvent
protected static class	TrackerClass.RecordChange
protected static class	TrackerClass.TransactionData

Field Summary

Fields

Modifier and Type	Field	Description
protected static java.util.List<TrackerClass.HistoryRecord>	history
protected static long	HISTORY_LENGTH
protected static java.util.Map<java.lang.String,TrackerClass.TransactionData>	transactionData

Method Summary

Modifier and Type	Method	Description
protected static void	addChange(TrackerClass.DataChange dc)
static void	noteCommit()	Note a commit operation.
static void	noteGlobalChange(java.lang.String description)	Add a global event, as yet uncommitted, which has the potential to affect the state of any record.
static void	noteJobChange(java.lang.Long jobID, java.lang.String description)	Add a global event, as yet uncommitted, which has the potential to affect any record's state in a given job.
static void	notePrecommit()	Note that we are about to commit.
static void	notePreread(java.lang.Long recordID)	Note about to read status operation.
static void	noteRead(java.lang.Long recordID)	Note a read status operation.
static void	noteRecordChange(java.lang.Long recordID, int newStatus, java.lang.String description)	Add a single record event, as yet uncommitted
static void	noteRollback()	Note a rollback operation.
static void	printForensics(java.lang.Long recordID, int existingStatus)

Methods inherited from class java.lang.Object

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

Field Detail

HISTORY_LENGTH

protected static final long HISTORY_LENGTH

See Also:

Constant Field Values

transactionData

protected static final java.util.Map<java.lang.String,TrackerClass.TransactionData> transactionData

history

protected static final java.util.List<TrackerClass.HistoryRecord> history

Method Detail

noteRecordChange

public static void noteRecordChange(java.lang.Long recordID,
                                    int newStatus,
                                    java.lang.String description)

Add a single record event, as yet uncommitted

noteJobChange

public static void noteJobChange(java.lang.Long jobID,
                                 java.lang.String description)

Add a global event, as yet uncommitted, which has the potential to affect any record's state in a given job.

noteGlobalChange

public static void noteGlobalChange(java.lang.String description)

Add a global event, as yet uncommitted, which has the potential to affect the state of any record.

addChange

protected static void addChange(TrackerClass.DataChange dc)

notePrecommit

public static void notePrecommit()

Note that we are about to commit.

noteRead

public static void noteRead(java.lang.Long recordID)

Note a read status operation.

notePreread

public static void notePreread(java.lang.Long recordID)

Note about to read status operation.

noteCommit

public static void noteCommit()

Note a commit operation.

noteRollback

public static void noteRollback()

Note a rollback operation.

printForensics

public static void printForensics(java.lang.Long recordID,
                                  int existingStatus)