001package ca.uhn.fhir.rest.server.interceptor.s13n.standardizers;
002
003/*-
004 * #%L
005 * HAPI FHIR - Server Framework
006 * %%
007 * Copyright (C) 2014 - 2022 Smile CDR, Inc.
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 *
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 *
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023/**
024 * Standardizes phone numbers to fit 123-456-7890 pattern.
025 */
026public class PhoneStandardizer implements IStandardizer {
027
028        public static final String PHONE_NUMBER_PATTERN = "(\\d{3})(\\d{3})(\\d+)";
029        public static final String PHONE_NUMBER_REPLACE_PATTERN = "$1-$2-$3";
030
031        @Override
032        public String standardize(String thePhone) {
033                StringBuilder buf = new StringBuilder(thePhone.length());
034                for (char ch : thePhone.toCharArray()) {
035                        if (Character.isDigit(ch)) {
036                                buf.append(ch);
037                        }
038                }
039                return buf.toString().replaceFirst(PHONE_NUMBER_PATTERN, PHONE_NUMBER_REPLACE_PATTERN);
040        }
041
042}