Regular Expression Based Split Attribute Definition

This attribute definition creates its individual values by splitting an existing source attribute's values using a regular expression.

1. Create the Definition

The definition is created with the element <resolver:AttributeDefinition xsi:type="RegexSplit" xmlns="urn:mace:shibboleth:2.0:resolver:ad"> with the following required attributes:

• id: A unique identifier used within the IdP's resolver and filter to reference this definition.
• regex: A Java 5 regular expression used to split the value(s) of the source attribute. The first match group is used as the value for this attribute.

and an optional attribute:

• caseSensitive: A boolean flag that indicates whether the regular expression is case sensitive. Defaults to true.
• sourceAttributeID: The ID of an attribute to split with the regular expression. (default value: ID of this attribute)
• dependencyOnly: A boolean flag that indicates the attribute produced by this definition is used only by other resolver components and should never be released from the resolver. Defaults to false.

<resolver:AttributeDefinition xsi:type="RegexSplit" xmlns="urn:mace:shibboleth:2.0:resolver:ad"
                              id="UNIQUE_ID"
                              sourceAttributeID="ATTRIBUTE_ID"
                              regex="REGULAR_EXPRESSION">

     <!-- Remaining configuration from the next step goes here -->

</resolver:AttributeDefinition>

2. Define Dependencies

You must express, as a dependency, the attribute definition or data connector that produces the source attribute. Dependencies are declared using a <resolver:Dependency> with a ref attribute whose value is the unique ID of the dependent attribute definition or the data connector.

<resolver:AttributeDefinition xsi:type="RegexSplit" xmlns="urn:mace:shibboleth:2.0:resolver:ad"
                              id="UNIQUE_ID"
                              sourceAttributeID="ATTRIBUTE_ID"
                              regex="REGULAR_EXPRESSION">

     <resolver:Dependency ref="DEFINITION_ID_1" />

</resolver:AttributeDefinition>