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package org.glassfish.admin.amx.logging;
import java.util.Map;
import java.util.logging.Level;
import javax.management.MBeanOperationInfo;
import org.glassfish.admin.amx.annotation.ManagedAttribute;
import org.glassfish.admin.amx.annotation.ManagedOperation;
import org.glassfish.admin.amx.annotation.Param;
import org.glassfish.external.arc.Stability;
import org.glassfish.external.arc.Taxonomy;
/**
Provides summary information about important logging events.
PRELIMINARY--SUBJECT TO CHANGES/ADDITIONS
@since AS 9.0
*/
@Taxonomy(stability = Stability.EXPERIMENTAL)
public interface LogAnalyzer
{
/**
Key into any Map returned from {@link #getErrorInfo}.
value is of type Long.
*/
public static final String TIMESTAMP_KEY = "TimeStamp";
/**
Key into any Map returned from {@link #getErrorInfo}.
value is of type Long.
*/
public static final String SEVERE_COUNT_KEY = "SevereCount";
/**
Key into any Map returned from {@link #getErrorInfo}.
value is of type Long.
*/
public static final String WARNING_COUNT_KEY = "WarningCount";
/**
Key into any Map returned from {@link #getErrorDistribution}.
value is of type String.
*/
public static final String MODULE_NAME_KEY = "ModuleName";
/**
Get a summary of the {@link Level#SEVERE} and {@link Level#WARNING} log
entries for the known history. Each entry in the resulting array is a
Map with the following keys:
- {@link #TIMESTAMP_KEY} of type Long
- {@link #SEVERE_COUNT_KEY} of type Integer
- {@link #WARNING_COUNT_KEY} of type Integer
The entries are arranged from oldest to newest with the last entry being
the most recent.
The timestamp obtained from each Map may be used as the timestamp when
calling {@link #getErrorDistribution}. For example:
final Map[] infos = logging.getErrorInfo();
for( int i = 0; i < infos.length; ++i ) {
final Map info = infos[ i ];
final long timestamp = ((Long)info.get( TIMESTAMP_KEY )).longValue();
Map counts = getErrorDistribution( timestamp );
}
@return Map
*/
@ManagedAttribute
public Map[] getErrorInfo();
/**
Get the number of log entries for a particular timestamp of a particular {@link Level}
for all modules. SEVERE and WARNING are the only levels supported.
The resulting Map is keyed by the module ID, which may be any of the values
found in {@link LogModuleNames} or any valid Logger name.
The corresponding value
is the count for that module of the requested level.
@param timestamp a timestamp as obtained using TIME_STAMP_KEY from one of the Maps
returned by {@link #getErrorInfo}. Note that it is a 'long' not a 'Long' and is required.
@param level
@return Map
*/
@ManagedOperation
public Map getErrorDistribution(
@Param(name="timestamp") long timestamp,
@Param(name="level") String level);
/**
@return all the logger names currently in use
*/
@ManagedAttribute
public String[] getLoggerNames();
/**
@return all the logger names currently in use under this logger.
*/
@ManagedOperation(impact=MBeanOperationInfo.INFO)
public String[] getLoggerNamesUnder( @Param(name="loggerName") String loggerName );
/**
Set the number of intervals error statistics should be maintained.
@param numIntervals number of intervals
*/
@ManagedAttribute
public void setKeepErrorStatisticsForIntervals( @Param(name="numIntervals") final int numIntervals );
/*
See {@link #setErrorStatisticsIntervals}.
*/
@ManagedAttribute
public int getKeepErrorStatisticsForIntervals();
/**
Set the duration of an interval.
@param minutes The duration of an interval in minutes.
*/
@ManagedAttribute
public void setErrorStatisticsIntervalMinutes( @Param(name="minutes") final long minutes);
/*
See {@link #setErrorStatisticsIntervalMinutes}.
*/
@ManagedAttribute
public long getErrorStatisticsIntervalMinutes();
}