001/**
002 *
003 * Copyright 2019-2020 Florian Schmaus
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smack.bind2;
018
019import org.jivesoftware.smack.c2s.ModularXmppClientToServerConnection.AuthenticatedAndResourceBoundStateDescriptor;
020import org.jivesoftware.smack.c2s.ModularXmppClientToServerConnection.ConnectedButUnauthenticatedStateDescriptor;
021import org.jivesoftware.smack.c2s.ModularXmppClientToServerConnection.SaslAuthenticationStateDescriptor;
022import org.jivesoftware.smack.c2s.ModularXmppClientToServerConnectionModule;
023import org.jivesoftware.smack.c2s.internal.ModularXmppClientToServerConnectionInternal;
024import org.jivesoftware.smack.c2s.internal.WalkStateGraphContext;
025import org.jivesoftware.smack.fsm.State;
026import org.jivesoftware.smack.fsm.StateDescriptor;
027import org.jivesoftware.smack.fsm.StateTransitionResult;
028
029public class Bind2Module extends ModularXmppClientToServerConnectionModule<Bind2ModuleDescriptor> {
030
031    protected Bind2Module(Bind2ModuleDescriptor moduleDescriptor,
032                    ModularXmppClientToServerConnectionInternal connectionInternal) {
033        super(moduleDescriptor, connectionInternal);
034    }
035
036    public static final class Bind2StateDescriptor extends StateDescriptor {
037        private Bind2StateDescriptor() {
038            super(Bind2State.class, 386, StateDescriptor.Property.notImplemented);
039
040            addPredeccessor(ConnectedButUnauthenticatedStateDescriptor.class);
041            addSuccessor(AuthenticatedAndResourceBoundStateDescriptor.class);
042            declarePrecedenceOver(SaslAuthenticationStateDescriptor.class);
043        }
044
045        @Override
046        protected Bind2Module.Bind2State constructState(ModularXmppClientToServerConnectionInternal connectionInternal) {
047            // This is the trick: the module is constructed prior the states, so we get the actual state out of the module by fetching the module from the connection.
048            Bind2Module bind2Module = connectionInternal.connection.getConnectionModuleFor(Bind2ModuleDescriptor.class);
049            return bind2Module.constructBind2State(this, connectionInternal);
050        }
051    }
052
053    private static final class Bind2State extends State {
054
055        private Bind2State(Bind2StateDescriptor bind2StateDescriptor,
056                        ModularXmppClientToServerConnectionInternal connectionInternal) {
057            super(bind2StateDescriptor, connectionInternal);
058        }
059
060        @Override
061        public StateTransitionResult.TransitionImpossible isTransitionToPossible(WalkStateGraphContext walkStateGraphContext) {
062            return new StateTransitionResult.TransitionImpossibleBecauseNotImplemented(stateDescriptor);
063        }
064
065        @Override
066        public StateTransitionResult.AttemptResult transitionInto(WalkStateGraphContext walkStateGraphContext) {
067            throw new IllegalStateException("Bind2 not implemented");
068        }
069
070    }
071
072    public Bind2State constructBind2State(Bind2StateDescriptor bind2StateDescriptor,
073                    ModularXmppClientToServerConnectionInternal connectionInternal) {
074        return new Bind2State(bind2StateDescriptor, connectionInternal);
075    }
076
077}