mesclient-lm/src/com/mes/step/DeviceStartStep.java

package com.mes.step;

import com.mes.core.StationContext;
import com.mes.device.IDeviceDriver;

/**
 * 设备启动步骤
 * 向PLC发送启动信号/就绪信号
 * 注意：心跳启动已移至单独的 StartHeartbeatStep
 */
public class DeviceStartStep extends AbstractStep {

    public DeviceStartStep() {
        super("device_start", "启动设备");
        this.async = false;
        this.requiresUserInteraction = false;
    }

    @Override
    public boolean execute(StationContext context) {
        // 检查设备是否启用
        if (!context.isDeviceEnabled()) {
            log.info("[{}] 设备未启用，跳过设备启动", context.getStationCode());
            return true;
        }

        IDeviceDriver driver = context.getDeviceDriver();
        if (driver == null) {
            log.warn("[{}] 设备驱动未配置", context.getStationCode());
            return true;  // 无设备时跳过
        }

        try {
            // 发送就绪/启动信号
            driver.signalReady();
            log.info("[{}] 设备启动信号已发送", context.getStationCode());

            context.setStatusMessage("设备已启动", 0);
            return true;

        } catch (Exception e) {
            log.error("[{}] 设备启动失败: {}", context.getStationCode(), e.getMessage(), e);
            context.setStatusMessage("设备启动失败: " + e.getMessage(), -1);
            return false;
        }
    }

    @Override
    public boolean canExecute(StationContext context) {
        // 质量检查通过才能启动设备
        return context.isQualityPassed();
    }

    @Override
    public boolean canSkip(StationContext context) {
        // 设备未启用时跳过
        return !context.isDeviceEnabled();
    }

    @Override
    public void onSkip(StationContext context) {
        log.info("[{}] 设备启动步骤已跳过（设备未启用）", context.getStationCode());
    }
}