--- /dev/null
+/*-
+ * ============LICENSE_START=======================================================
+ * PolicyEngineUtils
+ * ================================================================================
+ * 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.onap.policy.utils;
+
+import java.io.IOException;
+import java.io.StringReader;
+import java.io.UnsupportedEncodingException;
+import java.util.Arrays;
+import java.util.Base64;
+import java.util.List;
+import java.util.StringTokenizer;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.drools.core.io.impl.ReaderResource;
+import org.drools.verifier.Verifier;
+import org.drools.verifier.VerifierError;
+import org.drools.verifier.builder.VerifierBuilder;
+import org.drools.verifier.builder.VerifierBuilderFactory;
+import org.kie.api.io.ResourceType;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.common.base.CharMatcher;
+
+public class PolicyUtils {
+
+ public static final String EMAIL_PATTERN =
+ "^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
+ + "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";
+ private static final String PACKAGE_ERROR = "mismatched input '{' expecting one of the following tokens: '[package";
+ private static final String SUCCESS = "success";
+
+ private PolicyUtils(){
+ // Private Constructor
+ }
+ public static String objectToJsonString(Object o) throws JsonProcessingException{
+ ObjectMapper mapper = new ObjectMapper();
+ return mapper.writeValueAsString(o);
+ }
+
+ public static <T> T jsonStringToObject(String jsonString, Class<T> className) throws IOException{
+ ObjectMapper mapper = new ObjectMapper();
+ return mapper.readValue(jsonString, className);
+ }
+
+ public static String decode(String encodedString) throws UnsupportedEncodingException {
+ if(encodedString!=null && !encodedString.isEmpty()){
+ return new String(Base64.getDecoder().decode(encodedString) ,"UTF-8");
+ }else{
+ return null;
+ }
+ }
+
+ public static String[] decodeBasicEncoding(String encodedValue) throws Exception{
+ if(encodedValue!=null && encodedValue.contains("Basic ")){
+ String encodedUserPassword = encodedValue.replaceFirst("Basic" + " ", "");
+ String usernameAndPassword = null;
+ byte[] decodedBytes = Base64.getDecoder().decode(encodedUserPassword);
+ usernameAndPassword = new String(decodedBytes, "UTF-8");
+ StringTokenizer tokenizer = new StringTokenizer(usernameAndPassword, ":");
+ String username = tokenizer.nextToken();
+ String password = tokenizer.nextToken();
+ return new String[]{username, password};
+ }else{
+ return new String[]{};
+ }
+ }
+
+ public static String emptyPolicyValidator(String field){
+ String error;
+ if ("".equals(field) || field.contains(" ") || !field.matches("^[a-zA-Z0-9_]*$")) {
+ error = "The Value in Required Field will allow only '{0-9}, {a-z}, {A-Z}, _' following set of Combinations";
+ return error;
+ } else {
+ if(CharMatcher.ASCII.matchesAllOf((CharSequence) field)){
+ error = SUCCESS;
+ }else{
+ error = "The Value Contains Non ASCII Characters";
+ return error;
+ }
+ }
+ return error;
+ }
+
+ public static String emptyPolicyValidatorWithSpaceAllowed(String field){
+ String error;
+ if ("".equals(field) || !field.matches("^[a-zA-Z0-9_ ]*$")) {
+ error = "The Value in Required Field will allow only '{0-9}, {a-z}, {A-Z}, _' following set of Combinations";
+ return error;
+ } else {
+ if(CharMatcher.ASCII.matchesAllOf((CharSequence) field)){
+ error = SUCCESS;
+ }else{
+ error = "The Value Contains Non ASCII Characters";
+ return error;
+ }
+ }
+ return error;
+ }
+ public static String descriptionValidator(String field) {
+ String error;
+ if (field.contains("@CreatedBy:") || field.contains("@ModifiedBy:")) {
+ error = "The value in the description shouldn't contain @CreatedBy: or @ModifiedBy:";
+ return error;
+ } else {
+ error = SUCCESS;
+ }
+ return error;
+ }
+
+ public static Boolean isInteger(String number){
+ try{
+ Integer.parseInt(number);
+ }catch(NumberFormatException e){
+ return false;
+ }
+ return true;
+ }
+
+ public static String validateEmailAddress(String emailAddressValue) {
+ String error = SUCCESS;
+ List<String> emailList = Arrays.asList(emailAddressValue.split(","));
+ for(int i =0 ; i < emailList.size() ; i++){
+ Pattern pattern = Pattern.compile(EMAIL_PATTERN);
+ Matcher matcher = pattern.matcher(emailList.get(i).trim());
+ if(!matcher.matches()){
+ error = "Please check the Following Email Address is not Valid .... " +emailList.get(i);
+ return error;
+ }else{
+ error = SUCCESS;
+ }
+ }
+ return error;
+ }
+
+ /*
+ * Check for "[ERR" to see if there are any errors.
+ */
+ public static String brmsRawValidate(String rule){
+ VerifierBuilder vBuilder = VerifierBuilderFactory.newVerifierBuilder();
+ Verifier verifier = vBuilder.newVerifier();
+ verifier.addResourcesToVerify(new ReaderResource(new StringReader(rule)), ResourceType.DRL);
+ // Check if there are any Errors in Verification.
+ if(!verifier.getErrors().isEmpty()){
+ boolean ignore = false;
+ StringBuilder message = new StringBuilder("Not a Valid DRL rule");
+ for(VerifierError error: verifier.getErrors()){
+ // Ignore annotations Error Messages
+ if(!error.getMessage().contains("'@'") && !error.getMessage().contains(PACKAGE_ERROR)){
+ ignore= true;
+ message.append("\n" + error.getMessage());
+ }
+ }
+ // Ignore new package names with {
+ // More checks for message to check if its a package error.
+ if(ignore && !message.toString().contains("Parser returned a null Package")){
+ message.append("[ERR 107]");
+ }
+ return message.toString();
+ }
+ return "";
+ }
+
+ /**
+ * Given a version string consisting of integers with dots between them, convert it into an array of ints.
+ *
+ * @param version
+ * @return
+ * @throws NumberFormatException
+ */
+ public static int[] versionStringToArray(String version) throws NumberFormatException {
+ if (version == null || version.length() == 0) {
+ return new int[0];
+ }
+ String[] stringArray = version.split("\\.");
+ int[] resultArray = new int[stringArray.length];
+ for (int i = 0; i < stringArray.length; i++) {
+ resultArray[i] = Integer.parseInt(stringArray[i]);
+ }
+ return resultArray;
+ }
+}
Code Review / policy / engine.git / blobdiff