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TypeScript ClientSubscription.monitor方法代码示例

本文整理汇总了TypeScript中node-opcua-client.ClientSubscription.monitor方法的典型用法代码示例。如果您正苦于以下问题:TypeScript ClientSubscription.monitor方法的具体用法?TypeScript ClientSubscription.monitor怎么用?TypeScript ClientSubscription.monitor使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在node-opcua-client.ClientSubscription的用法示例。


在下文中一共展示了ClientSubscription.monitor方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的TypeScript代码示例。

示例1: _monitor_execution_flag

    public _monitor_execution_flag(
        proxyObject: any,
        callback: (err?: Error) => void
    ) {

        // note : proxyObject must wrap a method
        assert(_.isFunction(callback));
        assert(proxyObject.nodeId instanceof NodeId);

        if (!this.subscription) {
            // some server do not provide subscription support, do not treat this as an error.
            return callback(); // new Error("No subscription"));
        }

        const itemToMonitor = { // ReadValueId
            attributeId: AttributeIds.Executable,
            nodeId: proxyObject.nodeId,
        };

        const monitoringParameters = { // MonitoringParameters
            discardOldest: true,
            queueSize: 10,
            samplingInterval: 0, /* event-based */
        };
        const requestedParameters = TimestampsToReturn.Neither;

        this.subscription.monitor(
            itemToMonitor, monitoringParameters, requestedParameters,
            (err: Error | null, monitoredItem?: ClientMonitoredItemBase) => {

                Object.defineProperty(
                    proxyObject,
                    "__monitoredItem_execution_flag",
                    {value: monitoredItem, enumerable: false});

                proxyObject.__monitoredItem_execution_flag.on("changed", (dataValue: DataValue) => {
                    proxyObject.executableFlag = dataValue.value.value;
                });

                callback(err!);
            });
    }
开发者ID:node-opcua,项目名称:node-opcua,代码行数:42,代码来源:proxy_manager.ts

示例2: _monitor_value

    public _monitor_value(
        proxyObject: any,
        callback: ErrorCallback
    ) {

        if (!this.subscription) {
            // some server do not provide subscription support, do not treat this as an error.
            return callback(); // new Error("No subscription"));
        }

        const itemToMonitor = { // ReadValueId
            attributeId: AttributeIds.Value,
            nodeId: proxyObject.nodeId,
        };
        const monitoringParameters = { // MonitoringParameters
            discardOldest: true,
            queueSize: 10,
            samplingInterval: 0, /* event-based */
        };
        const requestedParameters = TimestampsToReturn.Both;

        this.subscription.monitor(
            itemToMonitor, monitoringParameters, requestedParameters,

            (err: Error | null, monitoredItem?: ClientMonitoredItemBase) => {

                Object.defineProperty(proxyObject, "__monitoredItem", {value: monitoredItem, enumerable: false});

                proxyObject.__monitoredItem.on("changed", (dataValue: DataValue) => {
                    proxyObject.dataValue = dataValue;
                    proxyObject.emit("value_changed", dataValue);
                });
                callback(err!);
            });

    }
开发者ID:node-opcua,项目名称:node-opcua,代码行数:36,代码来源:proxy_manager.ts


注:本文中的node-opcua-client.ClientSubscription.monitor方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。