新建

李林

2023-10-07 658d4927d468c47208fd012d9128b09249c07eff

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package com.chinaztt.mes.warehouse.state.escort;
 
import com.chinaztt.mes.warehouse.entity.Escort;
import com.chinaztt.mes.warehouse.state.escort.constant.EscortEvents;
import com.chinaztt.mes.warehouse.state.escort.constant.EscortStates;
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.StateMachineConfigurationConfigurer;
import org.springframework.statemachine.config.builders.StateMachineStateConfigurer;
import org.springframework.statemachine.config.builders.StateMachineTransitionConfigurer;
import org.springframework.statemachine.persist.DefaultStateMachinePersister;
import org.springframework.statemachine.persist.StateMachinePersister;
import org.springframework.statemachine.support.DefaultStateMachineContext;
 
import java.util.EnumSet;
 
/**
 * @Author: cxf
 * @Date: 2020-07-24 17:21
 */
@Configuration
@EnableStateMachineFactory(name = "escortStateMachineFactory")
public class EscortStateMachineConfig extends EnumStateMachineConfigurerAdapter<EscortStates, EscortEvents> {
 
    public final static String MACHINE_ID = "escortStateMachine";
 
    @Override
    public void configure(StateMachineStateConfigurer<EscortStates, EscortEvents> states) throws Exception {
        states.withStates()
                .initial(EscortStates.DRAFT)
                .states(EnumSet.allOf(EscortStates.class));
    }
 
    @Override
    public void configure(StateMachineTransitionConfigurer<EscortStates, EscortEvents> transitions) throws Exception {
        transitions
                .withExternal()
                .source(EscortStates.DRAFT).target(EscortStates.COMPLETED)
                .event(EscortEvents.COMPLETE)
                .and()
                .withExternal()
                .source(EscortStates.COMPLETED).target(EscortStates.DRAFT)
                .event(EscortEvents.CANCEL);
    }
 
    @Override
    public void configure(StateMachineConfigurationConfigurer<EscortStates, EscortEvents> config)
            throws Exception {
        config.withConfiguration().machineId(MACHINE_ID);
    }
 
    /**
     * 持久化配置
     *
     * @return
     */
    @Bean(name = "escortPersister")
    public StateMachinePersister<EscortStates, EscortEvents, Escort> persister() {
        return new DefaultStateMachinePersister<>(new StateMachinePersist<EscortStates, EscortEvents, Escort>() {
            @Override
            public void write(StateMachineContext<EscortStates, EscortEvents> stateMachineContext, Escort escort) throws Exception {
 
            }
 
            @Override
            public StateMachineContext<EscortStates, EscortEvents> read(Escort escort) throws Exception {
                StateMachineContext<EscortStates, EscortEvents> result =
                        new DefaultStateMachineContext<EscortStates, EscortEvents>(EscortStates.getEnum(escort.getStatus()),
                                null, null, null, null, MACHINE_ID);
                return result;
            }
        });
    }
 
}