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001/*- 002 * #%L 003 * HAPI FHIR - Server Framework 004 * %% 005 * Copyright (C) 2014 - 2024 Smile CDR, Inc. 006 * %% 007 * Licensed under the Apache License, Version 2.0 (the "License"); 008 * you may not use this file except in compliance with the License. 009 * You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, software 014 * distributed under the License is distributed on an "AS IS" BASIS, 015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 016 * See the License for the specific language governing permissions and 017 * limitations under the License. 018 * #L% 019 */ 020package ca.uhn.fhir.rest.server.interceptor.s13n.standardizers; 021 022/** 023 * Standardizes email addresses by removing whitespace, ISO control characters and applying lower-case to the values. 024 */ 025public class EmailStandardizer implements IStandardizer { 026 027 @Override 028 public String standardize(String theString) { 029 StringBuilder buf = new StringBuilder(); 030 for (int offset = 0; offset < theString.length(); ) { 031 int codePoint = theString.codePointAt(offset); 032 offset += Character.charCount(codePoint); 033 034 if (Character.isISOControl(codePoint)) { 035 continue; 036 } 037 038 if (!Character.isWhitespace(codePoint)) { 039 buf.append(new String(Character.toChars(codePoint)).toLowerCase()); 040 } 041 } 042 return buf.toString(); 043 } 044}