2 * ============LICENSE_START=======================================================
3 * PNF-REGISTRATION-HANDLER
4 * ================================================================================
5 * Copyright (C) 2019 NOKIA Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.onap.dmaap.dbcapi.resources;
23 import org.onap.dmaap.dbcapi.model.ApiError;
25 import java.util.regex.Matcher;
26 import java.util.regex.Pattern;
28 import static javax.ws.rs.core.Response.Status.BAD_REQUEST;
30 public class RequiredChecker {
32 public void required(String name, Object val) throws RequiredFieldException {
34 throw new RequiredFieldException(new ApiError(BAD_REQUEST.getStatusCode(),
35 "missing required field", name));
39 public void required(String name, String val, String expr) throws RequiredFieldException {
43 if (expr != null && !expr.isEmpty()) {
44 Pattern pattern = Pattern.compile(expr);
45 Matcher matcher = pattern.matcher(val);
46 if (!matcher.find()) {
47 throw new RequiredFieldException(new ApiError(BAD_REQUEST.getStatusCode(),
48 "value '" + val + "' violates regexp check '" + expr + "'", name));