Java tutorial
/** * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.hulaki.smtp.api; import com.hulaki.smtp.exceptions.ApiProtocolException; import org.apache.commons.lang3.StringUtils; public enum ServerName { MAIL_PROCESSOR, SMTP_SERVER; public static ServerName parse(String nameAsString) { for (ServerName name : values()) { if (name.toString().equalsIgnoreCase(nameAsString)) { return name; } } throw new ApiProtocolException("Could not parse the server-name: " + nameAsString + ". Valid values are: " + StringUtils.join(values(), ',')); } }