Simple Threshold

System.Performance.ThresholdMonitorType (UnitMonitorType)

A simple threshold monitor.

Element properties:

Member Modules:

Overrideable Parameters:

Source Code:

<UnitMonitorType ID="System.Performance.ThresholdMonitorType" Accessibility="Public">

  <MonitorTypeStates>

    <MonitorTypeState ID="UnderThreshold"/>

    <MonitorTypeState ID="OverThreshold"/>

  </MonitorTypeStates>

  <Configuration>

    <xsd:element name="ComputerName" type="xsd:string" minOccurs="0" maxOccurs="1"/>

    <xsd:element name="CounterName" type="xsd:string"/>

    <xsd:element name="ObjectName" type="xsd:string"/>

    <xsd:element name="InstanceName" type="xsd:string" minOccurs="0" maxOccurs="1"/>

    <xsd:element name="AllInstances" type="xsd:boolean" minOccurs="0" maxOccurs="1"/>

    <xsd:element name="Frequency" type="xsd:unsignedInt"/>

    <xsd:element name="ScaleBy" type="xsd:double" minOccurs="0" maxOccurs="1"/>

    <xsd:element name="Threshold" type="xsd:string"/>

  </Configuration>

  <OverrideableParameters>

    <OverrideableParameter ID="Frequency" Selector="$Config/Frequency$" ParameterType="int"/>

    <OverrideableParameter ID="Threshold" Selector="$Config/Threshold$" ParameterType="string"/>

  </OverrideableParameters>

  <MonitorImplementation>

    <MemberModules>

      <DataSource ID="DataSource" TypeID="System.Performance.DataProvider">

        <ComputerName>$Config/ComputerName$</ComputerName>

        <CounterName>$Config/CounterName$</CounterName>

        <ObjectName>$Config/ObjectName$</ObjectName>

        <InstanceName>$Config/InstanceName$</InstanceName>

        <AllInstances>$Config/AllInstances$</AllInstances>

        <Frequency>$Config/Frequency$</Frequency>

        <ScaleBy>$Config/ScaleBy$</ScaleBy>

      </DataSource>

      <ConditionDetection ID="UnderThresholdFilter" TypeID="System!System.ExpressionFilter">

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="Double">Value</XPathQuery>

            </ValueExpression>

            <Operator>LessEqual</Operator>

            <ValueExpression>

              <Value Type="Double">$Config/Threshold$</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </ConditionDetection>

      <ConditionDetection ID="OverThresholdFilter" TypeID="System!System.ExpressionFilter">

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="Double">Value</XPathQuery>

            </ValueExpression>

            <Operator>Greater</Operator>

            <ValueExpression>

              <Value Type="Double">$Config/Threshold$</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </ConditionDetection>

    </MemberModules>

    <RegularDetections>

      <RegularDetection MonitorTypeStateID="UnderThreshold">

        <Node ID="UnderThresholdFilter">

          <Node ID="DataSource"/>

        </Node>

      </RegularDetection>

      <RegularDetection MonitorTypeStateID="OverThreshold">

        <Node ID="OverThresholdFilter">

          <Node ID="DataSource"/>

        </Node>

      </RegularDetection>

    </RegularDetections>

  </MonitorImplementation>

</UnitMonitorType>