From 91d04c64771832a0b8815ffbe1f0f9920320d94d Mon Sep 17 00:00:00 2001 From: Pamela Dragosh Date: Tue, 14 Feb 2017 19:41:00 -0500 Subject: Initial OpenECOMP policy/engine commit Change-Id: I7dbff37733b661643dd4d1caefa3d7dccc361b6e Signed-off-by: Pamela Dragosh --- .../FunctionDefinitionCustomRegexpMatch.java | 123 +++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 ECOMP-PDP/src/main/java/org/openecomp/policy/xacml/pdp/std/functions/FunctionDefinitionCustomRegexpMatch.java (limited to 'ECOMP-PDP/src/main/java/org/openecomp/policy/xacml/pdp/std/functions/FunctionDefinitionCustomRegexpMatch.java') diff --git a/ECOMP-PDP/src/main/java/org/openecomp/policy/xacml/pdp/std/functions/FunctionDefinitionCustomRegexpMatch.java b/ECOMP-PDP/src/main/java/org/openecomp/policy/xacml/pdp/std/functions/FunctionDefinitionCustomRegexpMatch.java new file mode 100644 index 000000000..9e63052a4 --- /dev/null +++ b/ECOMP-PDP/src/main/java/org/openecomp/policy/xacml/pdp/std/functions/FunctionDefinitionCustomRegexpMatch.java @@ -0,0 +1,123 @@ +/*- + * ============LICENSE_START======================================================= + * ECOMP-PDP + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ +package org.openecomp.policy.xacml.pdp.std.functions; + + +import java.util.List; + +import com.att.research.xacml.api.DataType; +import com.att.research.xacml.api.DataTypeException; +import com.att.research.xacml.api.Identifier; +import com.att.research.xacml.std.StdStatus; +import com.att.research.xacml.std.StdStatusCode; +import com.att.research.xacml.std.datatypes.DataTypes; +import com.att.research.xacmlatt.pdp.eval.EvaluationContext; +import com.att.research.xacmlatt.pdp.policy.ExpressionResult; +import com.att.research.xacmlatt.pdp.policy.FunctionArgument; +import com.att.research.xacmlatt.pdp.std.functions.ConvertedArgument; +import com.att.research.xacmlatt.pdp.std.functions.FunctionDefinitionBase; + +/** + * FunctionDefinitionCustomRegexMatch implements {@link com.att.research.xacmlatt.pdp.policy.FunctionDefinition} to + * implement the custom 'type'-regex-match predicates as functions taking two arguments, the first of String, + * and the second of the type for that specific predicate as a regular expression, + * and returning a Boolean for whether the regular expression matches the string representation of the first argument. + * + * + * @version $Revision: 0.1 $ + * + * @param the java class for the data type of the function Input arguments + */ +public class FunctionDefinitionCustomRegexpMatch extends FunctionDefinitionBase { + + + /** + * Constructor - need dataTypeArgs input because of java Generic type-erasure during compilation. + * + * @param idIn + * @param dataTypeArgsIn + */ + public FunctionDefinitionCustomRegexpMatch(Identifier idIn, DataType dataTypeArgsIn) { + super(idIn, DataTypes.DT_BOOLEAN, dataTypeArgsIn, false); + } + + + @Override + public ExpressionResult evaluate(EvaluationContext evaluationContext, List arguments) { + + if (arguments == null || arguments.size() != 2) { + return ExpressionResult.newError(new StdStatus(StdStatusCode.STATUS_CODE_PROCESSING_ERROR, this.getShortFunctionId() + " Expected 2 arguments, got " + + ((arguments == null) ? "null" : arguments.size()) )); + } + + // get the regular expression + FunctionArgument regexpArgument = arguments.get(0); + + ConvertedArgument convertedArgument = new ConvertedArgument(regexpArgument, DataTypes.DT_STRING, false); + if ( ! convertedArgument.isOk()) { + return ExpressionResult.newError(getFunctionStatus(convertedArgument.getStatus())); + } + + // String regexpValue = (String)regexpArgument.getValue().getValue(); + String regexpValue = convertedArgument.getValue(); + + + // now get the element to match + FunctionArgument elementArgument = arguments.get(1); + + ConvertedArgument convertedElement = new ConvertedArgument(elementArgument, this.getDataTypeArgs(), false); + if ( ! convertedElement.isOk()) { + return ExpressionResult.newError(getFunctionStatus(convertedElement.getStatus())); + } + + I elementValueObject = convertedElement.getValue(); + + String elementValueString; + try { + elementValueString = this.getDataTypeArgs().toStringValue(elementValueObject); + } catch (DataTypeException e) { + String message = e.getMessage(); + if (e.getCause() != null) { + message = e.getCause().getMessage(); + } + return ExpressionResult.newError(new StdStatus(StdStatusCode.STATUS_CODE_PROCESSING_ERROR, this.getShortFunctionId() + " " + message)); + } + + // ConvertedArgument checks for null value, so do not need to do again here + + // Adding this code will Change the Functionality which allows to retrieve Multiple-policy using single request. + elementValueString = elementValueString + regexpValue ; + regexpValue = elementValueString.substring(0,(elementValueString.length()- regexpValue.length())); + elementValueString = elementValueString.substring(regexpValue.length(),(elementValueString.length())); + // + + if (elementValueString.matches(regexpValue)) { + return ER_TRUE; + } else { + return ER_FALSE; + } + + } + + + + + +} -- cgit 1.2.3-korg