001/* 002 * Copyright 2021 Global Biodiversity Information Facility (GBIF) 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package org.gbif.utils.text; 017 018import java.util.regex.Matcher; 019import java.util.regex.Pattern; 020 021import org.apache.commons.lang3.StringUtils; 022 023public class EmailUtils { 024 025 public static class EmailWithName { 026 027 public String email; 028 public String name; 029 } 030 031 private static final Pattern EMAIL_PATTERN = 032 Pattern.compile("(?:(.+)(?: +| *<))?([^@ ]+(?:@| at )[^@ ]+\\.[a-zA-Z0-9_-]{2,4})(?: *>)?"); 033 034 public static EmailWithName parseEmail(String x) { 035 if (StringUtils.isBlank(x)) { 036 return null; 037 } 038 EmailWithName n = new EmailWithName(); 039 Matcher m = EMAIL_PATTERN.matcher(x); 040 if (m.find()) { 041 // int all = m.groupCount(); 042 // int idx = 0; 043 // while (idx<=all){ 044 // System.out.println(m.group(idx)); 045 // idx++; 046 // } 047 n.name = StringUtils.trimToNull(m.group(1)); 048 n.email = StringUtils.trimToNull(m.group(2)); 049 } else { 050 n.name = StringUtils.trimToNull(x); 051 } 052 return n; 053 } 054 055 private EmailUtils() { 056 throw new UnsupportedOperationException("Can't initialize class"); 057 } 058}