/* * Copyright 2019 Arcus Project * * 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.iris.platform.subsystem.pairing.state; import java.util.Map; import java.util.Optional; import com.google.common.collect.ImmutableMap; import com.google.common.collect.ImmutableMap.Builder; import com.iris.common.subsystem.SubsystemContext; import com.iris.messages.MessageBody; import com.iris.messages.PlatformMessage; import com.iris.messages.model.subs.PairingSubsystemModel; import com.iris.platform.subsystem.state.StateMachine; import com.iris.prodcat.ProductCatalogEntry; public class PairingStateMachine extends StateMachine<PairingSubsystemModel, PairingState> { private static final PairingState DefaultState; private static final Map<String, PairingState> States; static { DefaultState = new IdleState(); ImmutableMap.Builder<String, PairingState> builder = ImmutableMap.builder(); add(builder, DefaultState); add(builder, new PairingStepsState()); add(builder, new SearchingState()); add(builder, new FactoryResetStepsState()); States = builder.build(); } private static void add(Builder<String, PairingState> builder, PairingState state) { builder.put(state.name(), state); } public static PairingStateMachine get(SubsystemContext<PairingSubsystemModel> context) { return new PairingStateMachine(context); } private PairingStateMachine(SubsystemContext<PairingSubsystemModel> context) { super(context, "pairingState"); if(context.getVariable("pairingState").isNull()) { context.setVariable("pairingState", PairingStateName.Idle); } } @Override protected PairingState state(String name) { return States.getOrDefault(name, DefaultState); } // exposed for testing protected PairingState current() { return super.current(); } // exposed for testing @Override protected void transition(String next) { current(); // make sure its initialized super.transition(next); } public MessageBody startPairing(PlatformMessage request, ProductCatalogEntry entry) { transition(current().startPairing(context(), request, entry)); return MessageBody.noResponse(); } public MessageBody search(PlatformMessage request, Optional<ProductCatalogEntry> product, Map<String, Object> form) { transition(current().search(context(), request, product, form)); return MessageBody.noResponse(); } public MessageBody factoryReset(PlatformMessage request, ProductCatalogEntry product) { transition(current().factoryReset(context(), request, product)); return MessageBody.noResponse(); } public void stopPairing() { transition(current().stopPairing(context())); } /** * Invoked when the hub enters pairing mode *via* request from the PairingSubsystem. * This will not be used for generic pairing / unpairing changes from legacy systems. */ public void onHubPairing() { transition(current().onHubPairing(context())); } /** * Invoked when the hub enters unpairing mode *via* request from the PairingSubsystem. * This will not be used for generic pairing / unpairing changes from legacy systems. */ public void onHubUnpairing() { transition(current().onHubUnpairing(context())); } public void onHubPairingIdle() { transition(current().onHubPairingIdle(context())); } /** * Invoked when there is an error putting the hub into pairing or unpairing mode. */ public void onHubPairingFailed(String error) { transition(current().onHubPairingFailed(context(), error)); } public void onCloudPairingSucceeded() { //Avoid putting pairing back to IDLE, I2-3807 //transition(current().onCloudPairingSucceeded(context())); context().logger().debug("onCloudPairingSucceeded is called, current state [{}]", current().name()); } public void onCloudPairingFailed(String errorCode, String error) { transition(current().onCloudPairingFailed(context(), errorCode, error)); } }