新建

李林

2023-10-07 658d4927d468c47208fd012d9128b09249c07eff

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package com.chinaztt.mes.technology.state.routing;
 
import com.chinaztt.mes.technology.entity.Routing;
import com.chinaztt.mes.technology.state.routing.constant.RoutingEvents;
import com.chinaztt.mes.technology.state.routing.constant.RoutingStates;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.statemachine.StateMachineContext;
import org.springframework.statemachine.StateMachinePersist;
import org.springframework.statemachine.config.EnableStateMachineFactory;
import org.springframework.statemachine.config.EnumStateMachineConfigurerAdapter;
import org.springframework.statemachine.config.builders.*;
import org.springframework.statemachine.persist.DefaultStateMachinePersister;
import org.springframework.statemachine.persist.StateMachinePersister;
import org.springframework.statemachine.support.DefaultStateMachineContext;
 
import java.util.EnumSet;
 
/**
 * @Author: zhangxy
 * @Date: 2020-08-24 17:21
 */
@Configuration
@EnableStateMachineFactory(name = "routingStateMachineFactory")
public class RoutingStateMachineConfig extends EnumStateMachineConfigurerAdapter<RoutingStates, RoutingEvents> {
 
    public final static String MACHINE_ID = "routingStateMachine";
 
    @Override
    public void configure(StateMachineStateConfigurer<RoutingStates, RoutingEvents> states) throws Exception {
        states.withStates()
                .initial(RoutingStates.DRAFT)
                .states(EnumSet.allOf(RoutingStates.class));
    }
 
    @Override
    public void configure(StateMachineTransitionConfigurer<RoutingStates, RoutingEvents> transitions) throws Exception {
        transitions
                .withExternal()
                .source(RoutingStates.DRAFT).target(RoutingStates.ACCEPTED)
                .event(RoutingEvents.ACCEPT)
                .and()
                .withExternal()
                .source(RoutingStates.ACCEPTED).target(RoutingStates.DRAFT)
                .event(RoutingEvents.REVOKE)
                .and()
                .withExternal()
                .source(RoutingStates.ACCEPTED).target(RoutingStates.CANCELLED)
                .event(RoutingEvents.CANCEL);
    }
 
    @Override
    public void configure(StateMachineConfigurationConfigurer<RoutingStates, RoutingEvents> config)
            throws Exception {
        config.withConfiguration().machineId(MACHINE_ID);
    }
 
    /**
     * 持久化配置
     *
     * @return
     */
    @Bean(name ="routingPersister")
    public StateMachinePersister<RoutingStates, RoutingEvents, Routing> persister() {
        return new DefaultStateMachinePersister<>(new StateMachinePersist<RoutingStates, RoutingEvents, Routing>() {
            @Override
            public void write(StateMachineContext<RoutingStates, RoutingEvents> stateMachineContext, Routing routing) throws Exception {
 
            }
 
            @Override
            public StateMachineContext<RoutingStates, RoutingEvents> read(Routing routing) throws Exception {
                StateMachineContext<RoutingStates, RoutingEvents> result = new DefaultStateMachineContext<RoutingStates, RoutingEvents>(RoutingStates.getEnum(routing.getState()),
                        null, null, null, null, MACHINE_ID);
                return result;
            }
        });
    }
 
}