serializeValuesToJSON

The serializeValuesToJSON function is used to serialize multiple attribute values to a JSON object.

Syntax

c4i:serializeValuesToJSON(xpath [, lov] [, units] [, values] [, attributeGroupFilter] [, keyMetaAttribute])

Parameters

xpath

XPath to the "Values" or "MetaData" XML node will treat all attribute values.

Otherwise, you can filter the desired values by providing a custom xPath.

lov (optional)

  • Indicates how to represent LOV values
  • The authorized values are "DISPLAY_LOV_VALUE_LABEL" (default), "DISPLAY_LOV_VALUE_ID" or "DISPLAY_BOTH"

units (optional)

  • Indicates how to represent units
  • The authorized values are "NO_UNITS" (default), "DISPLAY_UNIT_ID", "DISPLAY_UNIT_LABEL"

values (optional)

  • Indicates if values and units should be concatenated or separated
  • The authorized values are "CONCAT_VALUE_UNIT" (default) or "ISOLATE_VALUE"

attributeGroupFilter (optional)

  • This parameter is used to filter the attribute types depending on their attribute group
  • Can be a regex
  • Attribute group resolution is recursive

keyMetaAttribute (optional)

  • By default, attributes are indexed using their attribute ID
  • If this parameter is supplied, attributes will be indexed using a meta-attribute value, if it is present

Return value

A JSON document containing the attribute values.

Example

Given the following STEP XML:

<STEP-ProductInformation>
    <UnitList>
        <Unit ID="unece.unit.KTM">
            <Name>km</Name>
        </Unit>
    </UnitList>
    <AttributeList>
        <Attribute ID="ATT1">
            <Validation BaseType="text"></Validation>
            <MetaData>
                <Value AttributeID="ATT_KEY">MyCustomKey</Value>
            </MetaData>
        </Attribute>
        <Attribute ID="ATT2">
            <Validation BaseType="number">
                <UnitLink UnitID="unece.unit.KTM"/>
            </Validation>
        </Attribute>
    </AttributeList>
    <Products>
        <Product ID="PRD1">
            <Values>
                <MultiValue AttributeID="ATT1">
                    <Value ID="VAL_1">Value 1</Value> 
                    <Value ID="VAL_2">Value 2</Value> 
                </MultiValue>
                <MultiValue AttributeID="ATT2">
                    <Value UnitID="unece.unit.KTM">16</Value>
                    <Value UnitID="unece.unit.KTM">12</Value>
                </MultiValue>
            </Values>
        </Product>
    </Products>
</STEP-ProductInformation>

The following YAML configuration will produce the following output :

c4i:serializeValuesToJSON(Values, "DISPLAY_LOV_VALUE_LABEL", "NO_UNITS", "CONCAT_VALUE_UNIT")

{"ATT1": ["Value 1", "Value 2"], "ATT2" : [16.0, 12.0]}

The following YAML configuration will produce the following output :

c4i:serializeValuesToJSON(Values, "DISPLAY_LOV_VALUE_LABEL", "NO_UNITS", "CONCAT_VALUE_UNIT", null, "ATT_KEY")

{"MyCustomKey": ["Value 1", "Value 2"], "ATT2" : [16.0, 12.0]}

Please refer to the documentation of multiValuesToJSON for more info on using the parameter values of this function.

Exporting only changed attributes

When executed in an event-driven OIEP, you can expose only the modified values by providing a custom XPath such as the following :

c4i:serializeValuesToJSON(Values/*[@Changed="true"], "DISPLAY_LOV_VALUE_ID")
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