X-Git-Url: https://gerrit.onap.org/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=PolicyEngineUtils%2Fsrc%2Fmain%2Fjava%2Forg%2Fonap%2Fpolicy%2Futils%2FPolicyUtils.java;fp=PolicyEngineUtils%2Fsrc%2Fmain%2Fjava%2Forg%2Fonap%2Fpolicy%2Futils%2FPolicyUtils.java;h=82340c13c36685dd114fe058240df4cbcb3f6106;hb=073cc188efe9abb4c010cf674e34e2cf46ef1c52;hp=0000000000000000000000000000000000000000;hpb=4ca818fdfb9b807562166800a086b413593d6894;p=policy%2Fengine.git diff --git a/PolicyEngineUtils/src/main/java/org/onap/policy/utils/PolicyUtils.java b/PolicyEngineUtils/src/main/java/org/onap/policy/utils/PolicyUtils.java new file mode 100644 index 000000000..82340c13c --- /dev/null +++ b/PolicyEngineUtils/src/main/java/org/onap/policy/utils/PolicyUtils.java @@ -0,0 +1,201 @@ +/*- + * ============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,})$"; + private static final String PACKAGE_ERROR = "mismatched input '{' expecting one of the following tokens: '[package"; + private static final String SUCCESS = "success"; + + private PolicyUtils(){ + // Private Constructor + } + public static String objectToJsonString(Object o) throws JsonProcessingException{ + ObjectMapper mapper = new ObjectMapper(); + return mapper.writeValueAsString(o); + } + + public static T jsonStringToObject(String jsonString, Class className) throws IOException{ + ObjectMapper mapper = new ObjectMapper(); + return mapper.readValue(jsonString, className); + } + + public static String decode(String encodedString) throws UnsupportedEncodingException { + if(encodedString!=null && !encodedString.isEmpty()){ + return new String(Base64.getDecoder().decode(encodedString) ,"UTF-8"); + }else{ + return null; + } + } + + public static String[] decodeBasicEncoding(String encodedValue) throws Exception{ + if(encodedValue!=null && encodedValue.contains("Basic ")){ + String encodedUserPassword = encodedValue.replaceFirst("Basic" + " ", ""); + String usernameAndPassword = null; + byte[] decodedBytes = Base64.getDecoder().decode(encodedUserPassword); + usernameAndPassword = new String(decodedBytes, "UTF-8"); + StringTokenizer tokenizer = new StringTokenizer(usernameAndPassword, ":"); + String username = tokenizer.nextToken(); + String password = tokenizer.nextToken(); + return new String[]{username, password}; + }else{ + return new String[]{}; + } + } + + public static String emptyPolicyValidator(String field){ + String error; + if ("".equals(field) || field.contains(" ") || !field.matches("^[a-zA-Z0-9_]*$")) { + 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 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; + } +}