Metadata File

MetaData.xml

The MetaData.xml file contains meta-datas related to the SMM Measure:

• Name and description of the Measure
• Type of the Measure
• Unite of the Measure
• List of properties of the measure
• List of references for Derived Measure (inputs form others measures)

Element	Cardianlity	Attribute	Description
Measure	1		The Measure
		name	Name / Id of the Measure
		type	SMM Type of the measure : [DIRECT,COLLECTIVE,RACKING,GRADE,BINARY,COUNTING,ESCALED,RATIO]
		unite	Unite of the Measurement return by the Measure
description	1		Description of the Measure
scopeProperties	*		A property user to configure the execution of the measure
		name	Name of the property
		defaultValue	Default value of the property
scopeProperties-description	1		Description of the property
references	*		References to inputs required by DErived Measures
		measureRef	Name of the required measure
		number	Default Number of instance of this input required
		expirationDelay	Filter old measurement
references-role	1		Role of the imput in current Measurement. This role allow to identifyseveral instance of the same Measure in a DerivedMeasure.

---

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Measure name="RandomBinaryMeasure" type="BINARY" unite="Numeric">
    <description>A Test Measure delivering colculating the sum of random numbers</description>
   <scopeProperties defaultValue="+" name="Operation">
        <description>Applied Operation</description>
    </scopeProperties>
    <references expirationDelay="60000" measureRef="RandomGenerator" number="1">
        <role>RandomNumber A</role>
    </references>
    <references expirationDelay="60000" measureRef="RandomGenerator" number="1">
        <role>RandomNumber B</role>
    </references>
 
</Measure>

---

Product the MetaData.xml file

The MetaData.xml file can be generated using JAXB :

---

	public static void main(String[] args) {
		SMMMeasure measure = new SMMMeasure();
		measure.setName("RandomBinaryMeasure");
		measure.setDescription("A Test Measure delivering colculating the sum of random numbers");
		measure.setType(MeasureType.BINARY);
		measure.setUnite(MeasureUnite.Numeric);
		
		
		ScopeProperty minRange = new ScopeProperty();
		minRange.setName("Operation");
		minRange.setDescription("Applied Operation");
		minRange.setDefaultValue("+");
		measure.getScopeProperties().add(minRange);
		
		MeasureReference ref1 = new MeasureReference();
		ref1.setExpirationDelay(new Long(60000));
		ref1.setMeasureRef("RandomGenerator");
		ref1.setNumber(1);	
		ref1.setRole("RandomNumber A");
		
		measure.getReferences().add(ref1);
		
		MeasureReference ref2 = new MeasureReference();
		ref2.setExpirationDelay(new Long(60000));
		ref2.setMeasureRef("RandomGenerator");
		ref2.setNumber(1);	
		ref2.setRole("RandomNumber B");
		
		measure.getReferences().add(ref2);
		
		File xmlTmpFile = File.createTempFile("SMMMeasure", "xml");

		JAXBContext context = JAXBContext.newInstance(SMMMeasure.class);
		Marshaller m = context.createMarshaller();
		m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
		m.marshal(measure, xmlTmpFile);
	}

---