Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 org.reficio.cougar.domain; import org.apache.commons.lang.StringUtils; /** * User: Tom Bujok (tom.bujok@reficio.org) * Date: 2010-11-22 * Time: 7:54 PM * <p/> * Reficio (TM) - Reestablish your software! * http://www.reficio.org */ public enum Command { // handshake CONNECT(true), CONNECTED(false), DISCONNECT(true), // subscriptions SUBSCRIBE(true), UNSUBSCRIBE(true), RECEIPT(false), // transactions BEGIN(true), COMMIT(true), ABORT(true), ACK(true), // message tramsmission SEND(true), MESSAGE(false), ERROR(false); private final boolean clientCommand; private Command(boolean clientCommand) { this.clientCommand = clientCommand; } public static Command getCommand(String value) { if (StringUtils.isBlank(value)) { return null; } try { return Enum.valueOf(Command.class, value); } catch (IllegalArgumentException ex) { return null; } } public boolean isClientCommand() { return clientCommand; } public boolean isServerCommand() { return clientCommand == false; } public String getName() { return name(); } @Override public String toString() { return this.name(); } }