Type Parameters:

OUTPUT_INDIVIDUAL_DECISION_REQUEST - type of output individual decision request.

INPUT_DECISION_REQUEST - type of original input decision request that may correspond to multiple individual decision requests (e.g. using XACML Multiple Decision Profile). Usually serializable, e.g. XACML-schema-derived JAXB Request for XML.

All Known Implementing Classes:

BaseXacmlJaxbRequestPreprocessor
```
public interface DecisionRequestPreprocessor<INPUT_DECISION_REQUEST,OUTPUT_INDIVIDUAL_DECISION_REQUEST extends DecisionRequest>
```
XACML Decision Request pre-processor; applies some validation and processing of the input request prior to the policy evaluation. For example, a request preprocessor may transform an XACML Request using the Multiple Decision Profile (section 2) into multiple Individual Decision Requests; and so that the policy evaluation engine is called for each Individual Decision Request. At the end, the results (one per Individual Decision Request) may be combined by a DecisionResultPostprocessor.
PDP extensions of this type (to support new ways of pre-processing XACML decision requests) must implement the DecisionRequestPreprocessor.Factory class
Note: this interface is meant to be generic enough to be independent of the actual original input data format (XML, JSON...).

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface DecisionRequestPreprocessor.Factory<IDR,OIDR extends DecisionRequest>
Factory of request preprocessors

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Class<INPUT_DECISION_REQUEST>`	`getInputRequestType()`	Returns the type of input requests
`Class<OUTPUT_INDIVIDUAL_DECISION_REQUEST>`	`getOutputRequestType()`	Returns the type of output individual decision requests
`List<OUTPUT_INDIVIDUAL_DECISION_REQUEST>`	`process(INPUT_DECISION_REQUEST req, Map<String,String> namespaceURIsByPrefix)`	Pre-processes a decision request, may result in multiple individual decision requests, e.g.

- Method Detail
  - getInputRequestType
```
Class<INPUT_DECISION_REQUEST> getInputRequestType()
```
    Returns the type of input requests
    
    Returns:
    
    INPUT_DECISION_REQUEST class.
  - getOutputRequestType
```
Class<OUTPUT_INDIVIDUAL_DECISION_REQUEST> getOutputRequestType()
```
    Returns the type of output individual decision requests
    
    Returns:
    
    OUTPUT_INDIVIDUAL_DECISION_REQUEST class.
  - process
```
List<OUTPUT_INDIVIDUAL_DECISION_REQUEST> process(INPUT_DECISION_REQUEST req,
                                                 Map<String,String> namespaceURIsByPrefix)
                                          throws IndeterminateEvaluationException
```
    Pre-processes a decision request, may result in multiple individual decision requests, e.g. if implementing the Multiple Decision Profile
    
    Parameters:
    
    req - input Request
    
    namespaceURIsByPrefix - namespace prefix-URI mappings (e.g. "... xmlns:prefix=uri") in the original XACML Request bound to req, used as part of the context for XPath evaluation; may be null if such mapping defined
    
    Returns:
    
    individual decision requests, as defined in Multiple Decision Profile, e.g. a singleton list if no multiple decision requested or supported by this
    Return a Collection and not array to make it easy for the implementer to create a defensive copy with Collections#unmodifiableList() and alike.
    
    Throws:
    
    IndeterminateEvaluationException - if some feature requested in the Request is not supported by this

Interface DecisionRequestPreprocessor<INPUT_DECISION_REQUEST,​OUTPUT_INDIVIDUAL_DECISION_REQUEST extends DecisionRequest>

Nested Class Summary

Method Summary

Method Detail

getInputRequestType

getOutputRequestType

process

Interface DecisionRequestPreprocessor<INPUT_DECISION_REQUEST,OUTPUT_INDIVIDUAL_DECISION_REQUEST extends DecisionRequest>