Package oshi.util.platform.windows

Class PerfCounterWildcardQuery

java.lang.Object

oshi.util.platform.windows.PerfCounterWildcardQuery

@ThreadSafe
public final class PerfCounterWildcardQuery
extends Object

Enables queries of Performance Counters using wild cards to filter instances

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	PerfCounterWildcardQuery.PdhCounterWildcardProperty	Contract for Counter Property Enums

Method Summary

Modifier and Type	Method	Description
static <T extends Enum<T>> Pair<List<String>,Map<T,List<Long>>>	queryInstancesAndValues(Class<T> propertyEnum, String perfObject, String perfWmiClass)	Query the a Performance Counter using PDH, with WMI backup on failure, for values corresponding to the property enum.
static <T extends Enum<T>> Pair<List<String>,Map<T,List<Long>>>	queryInstancesAndValues(Class<T> propertyEnum, String perfObject, String perfWmiClass, String customFilter)	Query the a Performance Counter using PDH, with WMI backup on failure, for values corresponding to the property enum.
static <T extends Enum<T>> Pair<List<String>,Map<T,List<Long>>>	queryInstancesAndValuesFromPDH(Class<T> propertyEnum, String perfObject)	Query the a Performance Counter using PDH for values corresponding to the property enum.
static <T extends Enum<T>> Pair<List<String>,Map<T,List<Long>>>	queryInstancesAndValuesFromPDH(Class<T> propertyEnum, String perfObject, String customFilter)	Query the a Performance Counter using PDH for values corresponding to the property enum.
static <T extends Enum<T>> Pair<List<String>,Map<T,List<Long>>>	queryInstancesAndValuesFromWMI(Class<T> propertyEnum, String wmiClass)	Query the a Performance Counter using WMI for values corresponding to the property enum.

Methods inherited from class java.lang.Object

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

Method Details

queryInstancesAndValues

public static <T extends Enum<T>>
Pair<List<String>,Map<T,List<Long>>> queryInstancesAndValues(Class<T> propertyEnum,
 String perfObject,
 String perfWmiClass)

Query the a Performance Counter using PDH, with WMI backup on failure, for values corresponding to the property enum.

Type Parameters:

T - The enum type of propertyEnum

Parameters:

propertyEnum - An enum which implements PerfCounterQuery.PdhCounterProperty and contains the WMI field (Enum value) and PDH Counter string (instance and counter)

perfObject - The PDH object for this counter; all counters on this object will be refreshed at the same time

perfWmiClass - The WMI PerfData_RawData_* class corresponding to the PDH object

Returns:

A pair containing a list of instances and an EnumMap of the corresponding values indexed by propertyEnum on success, or an empty list and empty map if both PDH and WMI queries failed.

queryInstancesAndValues

public static <T extends Enum<T>>
Pair<List<String>,Map<T,List<Long>>> queryInstancesAndValues(Class<T> propertyEnum,
 String perfObject,
 String perfWmiClass,
 String customFilter)

Query the a Performance Counter using PDH, with WMI backup on failure, for values corresponding to the property enum.

Type Parameters:

T - The enum type of propertyEnum

Parameters:

propertyEnum - An enum which implements PerfCounterQuery.PdhCounterProperty and contains the WMI field (Enum value) and PDH Counter string (instance and counter)

perfObject - The PDH object for this counter; all counters on this object will be refreshed at the same time

perfWmiClass - The WMI PerfData_RawData_* class corresponding to the PDH object

customFilter - a custom instance filter to use. If null, uses the first element of the property enum

Returns:

A pair containing a list of instances and an EnumMap of the corresponding values indexed by propertyEnum on success, or an empty list and empty map if both PDH and WMI queries failed.

queryInstancesAndValuesFromPDH

public static <T extends Enum<T>>
Pair<List<String>,Map<T,List<Long>>> queryInstancesAndValuesFromPDH(Class<T> propertyEnum,
 String perfObject)

Query the a Performance Counter using PDH for values corresponding to the property enum.

Type Parameters:

T - The enum type of propertyEnum

Parameters:

propertyEnum - An enum which implements PerfCounterQuery.PdhCounterProperty and contains the WMI field (Enum value) and PDH Counter string (instance and counter)

perfObject - The PDH object for this counter; all counters on this object will be refreshed at the same time

Returns:

An pair containing a list of instances and an EnumMap of the corresponding values indexed by propertyEnum on success, or an empty list and empty map if the PDH query failed.

queryInstancesAndValuesFromPDH

public static <T extends Enum<T>>
Pair<List<String>,Map<T,List<Long>>> queryInstancesAndValuesFromPDH(Class<T> propertyEnum,
 String perfObject,
 String customFilter)

Query the a Performance Counter using PDH for values corresponding to the property enum.

Type Parameters:

T - The enum type of propertyEnum

Parameters:

propertyEnum - An enum which implements PerfCounterQuery.PdhCounterProperty and contains the WMI field (Enum value) and PDH Counter string (instance and counter)

perfObject - The PDH object for this counter; all counters on this object will be refreshed at the same time

customFilter - a custom instance filter to use. If null, uses the first element of the property enum

Returns:

An pair containing a list of instances and an EnumMap of the corresponding values indexed by propertyEnum on success, or an empty list and empty map if the PDH query failed.

queryInstancesAndValuesFromWMI

public static <T extends Enum<T>>
Pair<List<String>,Map<T,List<Long>>> queryInstancesAndValuesFromWMI(Class<T> propertyEnum,
 String wmiClass)

Query the a Performance Counter using WMI for values corresponding to the property enum.

Type Parameters:

T - The enum type of propertyEnum

Parameters:

propertyEnum - An enum which implements PerfCounterQuery.PdhCounterProperty and contains the WMI field (Enum value) and PDH Counter string (instance and counter)

wmiClass - The WMI PerfData_RawData_* class corresponding to the PDH object

Returns:

An pair containing a list of instances and an EnumMap of the corresponding values indexed by propertyEnum on success, or an empty list and empty map if the WMI query failed.