public boolean compare()

in odata2-jpa-processor/jpa-core/src/main/java/org/apache/olingo/odata2/jpa/processor/core/model/JPAEdmAssociationEnd.java [161:220]
53 lines of code
37 McCabe index (conditional complexity)

  public boolean compare(final AssociationEnd end1, final AssociationEnd end2) {
    FullQualifiedName end1Type = end1.getType();
    FullQualifiedName currentAssociationEnd1Type = currentAssociationEnd1.getType();
    FullQualifiedName end2Type = end2.getType();
    FullQualifiedName currentAssociationEnd2Type = currentAssociationEnd2.getType();

    if(end1.getMultiplicity() == null || currentAssociationEnd1.getMultiplicity() == null) {
      return false;
    }
    if(end2.getMultiplicity() == null || currentAssociationEnd2.getMultiplicity() == null) {
      return false;
    }

    boolean end1eqCurEnd1 = end1.getMultiplicity().equals(currentAssociationEnd1.getMultiplicity());
    boolean end2eqCurEnd2 = end2.getMultiplicity().equals(currentAssociationEnd2.getMultiplicity());
    if(end1Type.equals(currentAssociationEnd1Type) && end2Type.equals(currentAssociationEnd2Type)
        && end1eqCurEnd1 && end2eqCurEnd2) {
      return true;
    }

    boolean end1EqCurEnd2 = end1.getMultiplicity().equals(currentAssociationEnd2.getMultiplicity());
    boolean end2EqCurEnd1 = end2.getMultiplicity().equals(currentAssociationEnd1.getMultiplicity());
    if(end1Type.equals(currentAssociationEnd2Type) && end2Type.equals(currentAssociationEnd1Type)
        && end1EqCurEnd2 && end2EqCurEnd1) {
      return true;
    }

    boolean end1IsZeroToOne = end1.getMultiplicity() == EdmMultiplicity.ZERO_TO_ONE;
    boolean end1IsOne = end1.getMultiplicity() == EdmMultiplicity.ONE;
    boolean end2IsZeroToOne = end2.getMultiplicity() == EdmMultiplicity.ZERO_TO_ONE;
    boolean end2IsOne = end2.getMultiplicity() == EdmMultiplicity.ONE;

    if (end1Type.equals(currentAssociationEnd1Type) && end2Type.equals(currentAssociationEnd2Type)) {
        if ((end1IsZeroToOne && currentAssociationEnd1.getMultiplicity() == EdmMultiplicity.ONE
            || end1IsOne && currentAssociationEnd1.getMultiplicity() == EdmMultiplicity.ZERO_TO_ONE)
            && end2eqCurEnd2) {
          return true;
        }
        if ((end2IsZeroToOne && currentAssociationEnd2.getMultiplicity() == EdmMultiplicity.ONE
            || end2IsOne && currentAssociationEnd2.getMultiplicity() == EdmMultiplicity.ZERO_TO_ONE)
            && end1eqCurEnd1) {
          return true;
        }
    }

    if (end2Type.equals(currentAssociationEnd1Type) && end1Type.equals(currentAssociationEnd2Type)) {
      if ((end1IsZeroToOne && currentAssociationEnd2.getMultiplicity() == EdmMultiplicity.ONE
          || end1IsOne && currentAssociationEnd2.getMultiplicity() == EdmMultiplicity.ZERO_TO_ONE)
          && end2EqCurEnd1) {
        return true;
      }
      if ((end2IsZeroToOne && currentAssociationEnd1.getMultiplicity() == EdmMultiplicity.ONE
          || end2IsOne && currentAssociationEnd1.getMultiplicity() == EdmMultiplicity.ZERO_TO_ONE)
          && end1EqCurEnd2) {
        return true;
      }
    }

    return false;
  }