2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * =============================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
22 * ============LICENSE_END=========================================================
25 package org.onap.appc.util;
27 import org.apache.commons.lang3.StringUtils;
30 import java.util.regex.Matcher;
31 import java.util.regex.Pattern;
34 public class MessageFormatter {
35 private final static String paramNameRegexGroupName = "paramName";
36 private final static String paramRegex = "\\$\\{(?<paramName>[^}$]+)\\}"; //start with ${ and after there is one or more characters that are not $ and not } and ended with }
39 public static String format(String messageTemplate, Map<String,Object> params) {
40 if (StringUtils.isEmpty(messageTemplate))
42 if (params == null || params.isEmpty())
43 return messageTemplate;
45 String formattedMessage = messageTemplate;
46 if (formattedMessage.contains("$")) {
47 for (Map.Entry<String, Object> entry : params.entrySet()) {
48 formattedMessage = formattedMessage.replaceAll("\\$\\{" + entry.getKey() + "\\}", String.valueOf(entry.getValue()));
52 return formattedMessage;
55 public static List<String> getParamsNamesList(String messageTemplate) {
56 List<String> paramsNames = null;
57 if(!StringUtils.isEmpty(messageTemplate)){
58 paramsNames = new ArrayList<String>();
59 Matcher m = Pattern.compile(paramRegex).matcher(messageTemplate);
61 String paramName = m.group(paramNameRegexGroupName);
62 paramsNames.add(paramName);
67 public static Set<String> getParamsNamesSet(String messageTemplate) {
68 List<String> paramsNamesList = getParamsNamesList(messageTemplate);
69 Set<String> paramsNamesSet = null;
70 if(paramsNamesList != null && !paramsNamesList.isEmpty()){
71 paramsNamesSet = new HashSet<String>();
72 for(String paramName : paramsNamesList){
73 paramsNamesSet.add(paramName);
76 return paramsNamesSet;