Package org.metricshub.wmi

Class WmiHelper

java.lang.Object

org.metricshub.wmi.WmiHelper

public abstract class WmiHelper
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_NAMESPACE

Method Summary

Modifier and Type	Method	Description
static String	createNetworkResource(String hostname, String namespace)	The "network resource" is either just the namespace (for localhost), or \\hostname\\namespace.
static List<String>	extractPropertiesFromResult(List<Map<String,Object>> resultRows, String wql)	Extract the exact name of the properties from a WMI result.
static List<String>	extractPropertiesFromResult(List<Map<String,Object>> resultRows, WqlQuery wqlQuery)	Extract the exact name of the properties from a WMI result.
static boolean	isLocalNetworkResource(String networkResource)
static boolean	isValidWql(String wqlQuery)	Check if the WQL Query respect the simple syntax in the form of Select * from (where) or Select a,b,c from (where) is valid.

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_NAMESPACE

public static final String DEFAULT_NAMESPACE

See Also:

• Constant Field Values

Method Details

isValidWql

public static boolean isValidWql(String wqlQuery)

Check if the WQL Query respect the simple syntax in the form of Select * from (where) or Select a,b,c from (where) is valid.

Parameters:

wqlQuery -

Returns:

whether specified WQL query's syntax is valid or not

createNetworkResource

public static String createNetworkResource(String hostname,
 String namespace)

The "network resource" is either just the namespace (for localhost), or \\hostname\\namespace.

Parameters:

hostname - Host to connect to.

namespace - The Namespace.

Returns:

A string representing the Network resource.

isLocalNetworkResource

public static boolean isLocalNetworkResource(String networkResource)

Parameters:

networkResource - Network resource string to test

Returns:

whether specified networkResource is local or not

extractPropertiesFromResult

public static List<String> extractPropertiesFromResult(List<Map<String,Object>> resultRows,
 String wql)

Extract the exact name of the properties from a WMI result. The interest is to retrieve the exact case of the property names, instead of the lowercase that we have at this stage.

Parameters:

resultRows - The result whose first row will be parsed

wql - The WQL query that was used (so we make sure to return the properties in the same order)

Returns:

a list of property names

Throws:

IllegalStateException - if the specified WQL is invalid

extractPropertiesFromResult

public static List<String> extractPropertiesFromResult(List<Map<String,Object>> resultRows,
 WqlQuery wqlQuery)

Extract the exact name of the properties from a WMI result. The interest is to retrieve the exact case of the property names, instead of the lowercase that we have at this stage. Note: The exact case cannot be retrieved if result is empty, in which case all names are reported in lower case

Parameters:

resultRows - The result whose first row will be parsed

wqlQuery - The WQL query that was used (so we make sure to return the properties in the same order)

Returns:

a list of property names