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TypeScript BinaryStream.readByteStream方法代码示例

本文整理汇总了TypeScript中node-opcua-binary-stream.BinaryStream.readByteStream方法的典型用法代码示例。如果您正苦于以下问题:TypeScript BinaryStream.readByteStream方法的具体用法?TypeScript BinaryStream.readByteStream怎么用?TypeScript BinaryStream.readByteStream使用的例子?那么恭喜您, 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-binary-stream.BinaryStream的用法示例。


在下文中一共展示了BinaryStream.readByteStream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: decodeExtensionObject

export function decodeExtensionObject(stream: BinaryStream): ExtensionObject | null {

    const nodeId = decodeNodeId(stream);
    const encodingType = stream.readUInt8();

    if (encodingType === 0) {
        return null;
    }

    const length = stream.readUInt32();

    /* istanbul ignore next */
    if (nodeId.value === 0 || encodingType === 0) {
        return {} as ExtensionObject;
    }

    // let verify that  decode will use the expected number of bytes
    const streamLengthBefore = stream.length;

    let object: any;
    if (nodeId.namespace !== 0) {
        // this is a extension object define in a other namespace
        // we can only threat it as an opaque object for the time being
        // the caller that may now more about the namespace Array and type
        // definition will be able to turn the opaque object into a meaningful
        // structure
        // lets rewind before the length
        stream.length -= 4;
        object = new OpaqueStructure(nodeId, stream.readByteStream()!);

    } else {
        object = constructEmptyExtensionObject(nodeId);
        /* istanbul ignore next */
        if (object === null) {
            // this object is unknown to us ..
            stream.length += length;
            object = {} as ExtensionObject;
        } else {
            try {
                object.decode(stream);
            } catch (err) {
                debugLog("Cannot decode object ", err.message);
            }
        }
    }

    if (streamLengthBefore + length !== stream.length) {
        // this may happen if the server or client do have a different OPCUA version
        // for instance SubscriptionDiagnostics structure has been changed between OPCUA version 1.01 and 1.04
        // causing 2 extra member to be added.
        debugLog(chalk.bgWhiteBright.red("========================================="));

        // tslint:disable-next-line:no-console
        console.warn("WARNING => Extension object decoding error on ",
          object.constructor.name, " expected size was", length,
          "but only this amount of bytes have been read :", stream.length - streamLengthBefore);
        stream.length = streamLengthBefore + length;
    }
    return object;
}
开发者ID:node-opcua,项目名称:node-opcua,代码行数:60,代码来源:extension_object.ts

示例2: decodeByteString

export function decodeByteString(stream: BinaryStream): ByteString {
    return stream.readByteStream() as ByteString;
}
开发者ID:node-opcua,项目名称:node-opcua,代码行数:3,代码来源:byte_string.ts


注:本文中的node-opcua-binary-stream.BinaryStream.readByteStream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。