/** * Perform a SubSet function against two defined Bags. * * @param firstBag * @param secondBag * @param pip * @return * @throws XACML3EntitlementException */ private boolean SubSet(DataBag firstBag, DataBag secondBag, XACMLEvalContext pip) throws XACML3EntitlementException { int subSetCount = 0; // Iterate over the First Bag. for (int b = 0; b < firstBag.size(); b++) { DataValue dataValue1 = (DataValue) firstBag.get(b).doEvaluate(pip); for (int z = 0; z < secondBag.size(); z++) { DataValue dataValue2 = (DataValue) secondBag.get(z).doEvaluate(pip); // Check Equality by using this Types Equality Function. AnyuriEqual fEquals = new AnyuriEqual(); fEquals.addArgument(dataValue2); fEquals.addArgument(dataValue1); FunctionArgument result = fEquals.doEvaluate(pip); if (result.isTrue()) { subSetCount++; break; } } // End of Inner Loop. } // End of Outer For Loop. // Determine if we have in-fact a subSet. return (subSetCount == firstBag.size()); }
public FunctionArgument evaluate(XACMLEvalContext pip) throws XACML3EntitlementException { int args = getArgCount(); if (args != 2) { throw new IndeterminateException( "Function Requires 2 arguments, " + "however " + args + " in stack."); } // Iterate Over the 2 DataBag's in Stack, Evaluate and determine if First Bag is a Subset of the // Second Bag and // in reverse and then And against each result. boolean firstSubSet = false; boolean secondSubSet = false; DataBag firstBag = null; DataBag secondBag = null; try { firstBag = (DataBag) getArg(0).doEvaluate(pip); secondBag = (DataBag) getArg(1).doEvaluate(pip); // Verify our Data Type with First Data Bag's Data Type. if (firstBag.getType().getIndex() != secondBag.getType().getIndex()) { throw new IndeterminateException( "First Bag Type: " + firstBag.getType().getTypeName() + ", however the subsequent Bag Type was " + secondBag.getType().getTypeName()); } // Is the First Bag a SubSet of the Second? firstSubSet = this.SubSet(firstBag, secondBag, pip); // Is the Second Bag a SubSet of the First? secondSubSet = this.SubSet(secondBag, firstBag, pip); } catch (Exception e) { throw new IndeterminateException("Iterating over Arguments Exception: " + e.getMessage()); } // And our Conditions. return (firstSubSet & secondSubSet) ? FunctionArgument.trueObject : FunctionArgument.falseObject; }
public FunctionArgument evaluate(XACMLEvalContext pip) throws XACML3EntitlementException { int args = getArgCount(); if (args < 2) { throw new IndeterminateException( "Function Requires at least 2 arguments, " + "however " + getArgCount() + " in stack."); } // Create our union DataBag from other Bags. DataBag unionBag = new DataBag(); // Iterate Over All DataBag's in Stack, Evaluate and create a Union of all Bags with Unique // Objects. try { for (int i = 0; i < args; i++) { DataBag bag = (DataBag) getArg(i).doEvaluate(pip); if (bag == null) { continue; } // Set our Union Data Bag with First Bag's Data Type and check subsequent Bags. if (i == 0) { unionBag.setType(bag.getType()); } else { // Verify our Data Type with First Data Bag's Data Type. if (bag.getType().getIndex() != unionBag.getType().getIndex()) { throw new IndeterminateException( "First Bag Type: " + unionBag.getType().getTypeName() + ", however a subsequent Bag Type was " + bag.getType().getTypeName()); } } // Iterate over the current Bag. for (int b = 0; b < bag.size(); b++) { DataValue dataValue = (DataValue) bag.get(b).doEvaluate(pip); boolean contained = false; for (int z = 0; z < unionBag.size(); z++) { // Apply the Typed Equal Function to determine if // the object already exists in the Union Bag. TimeEqual fEquals = new TimeEqual(); fEquals.addArgument(unionBag.get(z)); fEquals.addArgument(dataValue); FunctionArgument result = fEquals.doEvaluate(pip); if (result.isTrue()) { contained = true; break; } } // Add the Object if not contained. if (!contained) { // Add the Unique DataValue Element into the Union Bag. unionBag.add(dataValue); } } // End of Inner For Loop. } // End of Outer For Loop. } catch (Exception e) { throw new IndeterminateException("Iterating over Arguments Exception: " + e.getMessage()); } // Return our UnionBag Value. return unionBag; }