MyPresentationPolicyAlternatives.java

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//* IBM                                                               *
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//* eu.abc4trust.pabce.1.34                                           *
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package eu.abc4trust.util;

import java.net.URI;

import eu.abc4trust.exceptions.TokenVerificationException;
import eu.abc4trust.xml.PresentationPolicy;
import eu.abc4trust.xml.PresentationPolicyAlternatives;

public class MyPresentationPolicyAlternatives {
  private final PresentationPolicyAlternatives policyAlternatives;
  
  public MyPresentationPolicyAlternatives(PresentationPolicyAlternatives ppa) {
    this.policyAlternatives = ppa;
  }

  public MyPresentationPolicy findOrThrow(URI policyUri) throws TokenVerificationException {
    for(PresentationPolicy pp: policyAlternatives.getPresentationPolicy()) {
      if (pp.getPolicyUID().equals(policyUri)) {
        return new MyPresentationPolicy(pp);
      }
    }
    String errorMessage = "Cannot find presentation policy with URI '" + policyUri + "' among the alternatives";
    TokenVerificationException ex = new TokenVerificationException();
    ex.errorMessages.add(errorMessage);
    throw ex;
  }

}