cz.cuni.amis.nb.pogamut.base.logging
Class LogRecordsSource<T>

java.lang.Object
  cz.cuni.amis.nb.pogamut.base.logging.LogRecordsSource<T>

Direct Known Subclasses:

LogProxy

public abstract class LogRecordsSource<T>
extends Object

Source of LogRecords, it caches incomming logrecords and provides observers new collection of records when filter changes. All incoming log records are being cached so when the filter changes the listeners are provided with a refiltered list of past log records.

Author:

student

Nested Class Summary

static interface	LogRecordsSource.Filter<T> Interface for filtering messages.
class	LogRecordsSource.RegexpFilter<T> Filter based on regexp matching the toString() of the object

Field Summary

protected List<LogRecordsSource.Filter<T>>	filters List of all filters.
protected Set<LogRecordListener>	listeners
protected LimitedQueue<LogRecord>	queue Queue of all log records.

Constructor Summary

LogRecordsSource()

Method Summary

void	addFilter(LogRecordsSource.Filter filter) Change records filter and notify all listeners.
void	addLogRecordListener(LogRecordListener l)
protected void	addMessage(T msg) Adds new object to queue of objects.
void	clear() Clears all log records.
protected boolean	filter(T msg)
protected Collection<LogRecord>	getFilteredData() Apply filter to all cached records and return this new collection.
protected T	getLogRecParam(LogRecord lr)
org.openide.nodes.Sheet.Set	getPropSet() Returns property sheet associated with node representing this source.
protected void	notifyLogRecordsListeners(LogRecord r) Notify all listeners that new record has arrived.
void	notifySetNewData() Send new data to all listeners.
void	notifySetNewData(LogRecordListener listener) Send new data to one listeners.
void	removeFilter(LogRecordsSource.Filter filter)
void	removeLogRecordListener(LogRecordListener l)
LogRecordsSource.Filter<T>	replaceFilter(LogRecordsSource.Filter<T> oldFilter, LogRecordsSource.Filter<T> newFilter)
void	setRegexpFilterPatter(Pattern pattern) Sets new pattern for regexp filter.
protected abstract LogRecord	toLogRecord(T t) Format data element as LogRecord.

Methods inherited from class java.lang.Object

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

Field Detail

filters

protected List<LogRecordsSource.Filter<T>> filters

List of all filters.

listeners

protected Set<LogRecordListener> listeners

queue

protected LimitedQueue<LogRecord> queue

Queue of all log records.

Constructor Detail

LogRecordsSource

public LogRecordsSource()

Method Detail

addLogRecordListener

public void addLogRecordListener(LogRecordListener l)

removeLogRecordListener

public void removeLogRecordListener(LogRecordListener l)

clear

public void clear()

Clears all log records.

notifyLogRecordsListeners

protected void notifyLogRecordsListeners(LogRecord r)

Notify all listeners that new record has arrived.

toLogRecord

protected abstract LogRecord toLogRecord(T t)

Format data element as LogRecord.

notifySetNewData

public void notifySetNewData()

Send new data to all listeners.

notifySetNewData

public void notifySetNewData(LogRecordListener listener)

Send new data to one listeners.

getFilteredData

protected Collection<LogRecord> getFilteredData()

Apply filter to all cached records and return this new collection.

filter

protected boolean filter(T msg)

replaceFilter

public LogRecordsSource.Filter<T> replaceFilter(LogRecordsSource.Filter<T> oldFilter,
                                                LogRecordsSource.Filter<T> newFilter)

setRegexpFilterPatter

public void setRegexpFilterPatter(Pattern pattern)

Sets new pattern for regexp filter.

addFilter

public void addFilter(LogRecordsSource.Filter filter)

Change records filter and notify all listeners.

Parameters:

filter - new filter

removeFilter

public void removeFilter(LogRecordsSource.Filter filter)

getLogRecParam

protected T getLogRecParam(LogRecord lr)

Returns:

parameter of given log record

addMessage

protected void addMessage(T msg)

Adds new object to queue of objects. This means:

1. Construct LogRecord
2. Memorize it
3. Notify listeners

getPropSet

public org.openide.nodes.Sheet.Set getPropSet()

Returns property sheet associated with node representing this source. TODO move it to the node?

Returns:

property sheet associated with node representing this source.