Java CommandHandler类代码示例

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@CommandHandler
public void handle(OrgCreateCommand command) throws Exception {
    OrgEntry saved = orgDao.findByCode(command.getCode());
    if (saved != null) {
        throw new BusinessException(UCError.ORG_CODE_IS_EXIST);
    }
    if (StringUtils.isNotEmpty(command.getParentId())) {
        OrgEntry parent = orgDao.findOne(command.getParentId());
        if (parent == null) {
            throw new BusinessException(UCError.ORG_CODE_IS_EXIST);
        }
    }
    repository.newInstance(() -> {
        return new Org(command);
    });
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@CommandHandler
public void handle(RoleCreateCommand command) throws Exception {
    RoleEntry role = roleDao.findByRoleName(command.getRoleName());
    if (role != null) {
        throw new BusinessException(UCError.ROLE_IS_EXIST);
    }
    repository.newInstance(() -> {
        return new Role(command);
    });
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@CommandHandler
public void handle(UserCreateCommand command) throws Exception {
    UserEntry saved = userDao.findByUsername(command.getUsername());
    if (saved != null) {
        throw new BusinessException(UCError.USERNAME_IS_EXIST);
    }
    repository.newInstance(() -> {
        return new User(command);
    });
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@CommandHandler
public void handle(DebitSourceBankAccountCommand command) {
    try {
        Aggregate<BankAccount> bankAccountAggregate = repository.load(command.getBankAccountId());
        bankAccountAggregate.execute(bankAccount -> bankAccount
                .debit(command.getAmount(), command.getBankTransferId()));
    } catch (AggregateNotFoundException exception) {
        eventBus.publish(asEventMessage(new SourceBankAccountNotFoundEvent(command.getBankTransferId())));
    }
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@CommandHandler
public BankTransfer(CreateBankTransferCommand command) {
    apply(new BankTransferCreatedEvent(command.getBankTransferId(),
                                       command.getSourceBankAccountId(),
                                       command.getDestinationBankAccountId(),
                                       command.getAmount()));
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@CommandHandler
public TaskAggregate(CreateTaskCommand command) {
  log.info("CreateTaskCommand received: {}", command);

  // TODO: set id here?
  this.taskId = command.getTaskId();
  TaskCreatedEvent event = new TaskCreatedEvent();
  BeanUtils.copyProperties(command, event);
  apply(event);
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@CommandHandler
public void on(CompleteTaskCommand command) {
  log.info("CompleteTaskCommand received: {}", command);
  TaskCompletedEvent event = new TaskCompletedEvent();
  BeanUtils.copyProperties(command, event);
  apply(event);
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@CommandHandler
public Preparation(PreparationCreateCommand preparationCC) {
    // check things
    Assert.hasLength(preparationCC.getName());
    // event sourcing here. Never change the state of the aggregator in commandhandlers, do so in Event handlers,
    // see @EvenSourcingHandler methods below.
    apply(new PreparationCreatedEvent(preparationCC.getId(), preparationCC.getName(), preparationCC.getDesc()));
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@CommandHandler
public void stepAdd(StepAddCommand stepAddC) {
    if (NbOfSteps >= 2) {
        throw new IllegalArgumentException();
    }
    apply(new StepAddedEvent(id, stepAddC.getStepType()));
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
/**
 * {@inheritDoc}
 */
@Override
public void doWith(final Method method) throws IllegalArgumentException, IllegalAccessException {
	if (method
			.isAnnotationPresent(
					org.axonframework.commandhandling.CommandHandler.class)) {
		result.set(true);
	}
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@Override
public <C> void subscribe(String commandName, CommandHandler<? super C> handler) {
    if(m_supportedCmds.add(commandName)) {
        m_localSegment.subscribe(commandName, handler);
        m_cmdHandlers.put(commandName, m_agent.getNodeName());
    }
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@Override
public <C> boolean unsubscribe(String commandName, CommandHandler<? super C> handler) {
    if (m_localSegment.unsubscribe(commandName, handler)) {
        if(m_supportedCmds.remove(commandName)) {
            m_cmdHandlers.remove(commandName, m_agent.getNodeName());
        }

        return true;
    }

    return false;
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@Override
public <C> boolean unsubscribe(String commandName, CommandHandler<? super C> handler) {
    if (m_localSegment.unsubscribe(commandName, handler)) {
        if(m_supportedCmds.remove(commandName)) {
        }

        return true;
    }

    return false;
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@CommandHandler
public void handle(CreateBasketCommand command) throws Exception {
    repository.newInstance(() -> new Basket(command.id()));
}
 

import org.axonframework.commandhandling.CommandHandler; //导入依赖的package包/类
@CommandHandler
public void handle(String command) {
    getCommandCountDownLatch().countDown();
}