Java tutorial
package de.metas.ui.web.globalaction; import com.google.common.base.Strings; import de.metas.process.ProcessExecutionResult; import lombok.Builder; import lombok.NonNull; import lombok.Value; /* * #%L * metasfresh-webui-api * %% * Copyright (C) 2018 metas GmbH * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 2 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/gpl-2.0.html>. * #L% */ @Value @Builder public class GlobalActionEvent { @NonNull GlobalActionType type; String payload; private static final String SEPARATOR = "#"; public static GlobalActionEvent parseQRCode(@NonNull final String eventStr) { final int idx = eventStr.indexOf(SEPARATOR); if (idx > 0) { final String typeStr = eventStr.substring(0, idx); final GlobalActionType type = GlobalActionType.forCode(typeStr); final String payload = Strings.emptyToNull(eventStr.substring(idx + SEPARATOR.length())); return builder().type(type).payload(payload).build(); } else { final GlobalActionType type = GlobalActionType.forCode(eventStr); return builder().type(type).build(); } } @Override @Deprecated public String toString() { return toQRCodeString(); } public String toQRCodeString() { if (payload == null || payload.isEmpty()) { return type.getCode(); } else { return type.getCode() + SEPARATOR + payload; } } public ProcessExecutionResult.DisplayQRCode toDisplayQRCodeProcessResult() { return ProcessExecutionResult.DisplayQRCode.builder().code(toQRCodeString()).build(); } }