Package org.ldaptive.beans.spring

Class SpelAttributeValueMutator

java.lang.Object
org.ldaptive.beans.spring.SpelAttributeValueMutator
All Implemented Interfaces:
AttributeValueMutator
public class SpelAttributeValueMutator extends Object implements AttributeValueMutator
Attribute mutator that uses a SPEL expression and evaluation context.

  • Field Details

    • logger

      protected final Logger logger
      Logger for this class.

    • attribute

      private final Attribute attribute
      Attribute containing the SPEL expression.

    • expression

      private final org.springframework.expression.Expression expression
      SPEL expression to access values.

    • evaluationContext

      private final org.springframework.expression.EvaluationContext evaluationContext
      Evaluation context.

    • transcoder

      private final ValueTranscoder transcoder
      Custom transcoder for this attribute.

  • Constructor Details

    • SpelAttributeValueMutator

      public SpelAttributeValueMutator(Attribute attr, org.springframework.expression.EvaluationContext context)
      Creates a new spel attribute value mutator.
      Parameters:
      attr - containing the SPEL configuration
      context - containing the values

  • Method Details

    • getName

      public String getName()
      Description copied from interface: AttributeValueMutator
      Returns the name of the attribute.
      Specified by:
      getName in interface AttributeValueMutator
      Returns:
      attribute name

    • isBinary

      public boolean isBinary()
      Description copied from interface: AttributeValueMutator
      Returns whether the attribute is binary.
      Specified by:
      isBinary in interface AttributeValueMutator
      Returns:
      whether the attribute is binary

    • getStringValues

      public Collection<String> getStringValues(Object object)
      Description copied from interface: AttributeValueMutator
      Returns the string values of the attribute.
      Specified by:
      getStringValues in interface AttributeValueMutator
      Parameters:
      object - containing attribute values
      Returns:
      attribute values

    • getBinaryValues

      public Collection<byte[]> getBinaryValues(Object object)
      Description copied from interface: AttributeValueMutator
      Returns the binary values of the attribute.
      Specified by:
      getBinaryValues in interface AttributeValueMutator
      Parameters:
      object - containing attribute values
      Returns:
      attribute values

    • getValues

      protected <T> Collection<T> getValues(Object object, Class<T> type)
      Uses the configured expression and evaluation context to retrieve values from the supplied object. Values are the placed in a collection and returned.
      Type Parameters:
      T - either String or byte[]
      Parameters:
      object - to get values from
      type - of objects to place in the collection
      Returns:
      values in the supplied object

    • convertValue

      protected <T> T convertValue(Object value, Class<?> sourceType, Class<T> targetType)
      Converts the supplied value to the target type. If a custom transcoder has been configured it is used. Otherwise, the type converter from the evaluation context is used.
      Type Parameters:
      T - either String or byte[]
      Parameters:
      value - to convert
      sourceType - to convert from
      targetType - to convert to
      Returns:
      converted value

    • setStringValues

      public void setStringValues(Object object, Collection<String> values)
      Description copied from interface: AttributeValueMutator
      Sets the string values of the attribute.
      Specified by:
      setStringValues in interface AttributeValueMutator
      Parameters:
      object - to set values on
      values - to set

    • setBinaryValues

      public void setBinaryValues(Object object, Collection<byte[]> values)
      Description copied from interface: AttributeValueMutator
      Sets the binary values of the attribute.
      Specified by:
      setBinaryValues in interface AttributeValueMutator
      Parameters:
      object - to set values on
      values - to set

    • setValues

      protected <T> void setValues(Object object, Collection<T> values, Class<T> type)
      Uses the configured expression and evaluation context to set values on the supplied object. If a custom transcoder has been configured it is executed on the values before they are passed to the expression.
      Type Parameters:
      T - either String or byte[]
      Parameters:
      object - to set values on
      values - to set
      type - of objects in the collection

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • createCollection

      protected static <T> Collection<T> createCollection(Class<?> type, int size)
      Creates the best fit collection for the supplied type.
      Type Parameters:
      T - collection type
      Parameters:
      type - of collection to create
      size - of the collection
      Returns:
      collection