Question

目前在wso2集成商的公司工作，我需要检索定期创建到目录中的文件，以便可以处理，修改和发送到远程API。

问题是我们需要专门使用wso2而绝对不能代码端程序来适应这种情况。我们可以使用脚本，只有它们嵌入在wso2中。

有人有线索吗？

Answer 1

这是一个简单的突触配置：

等待指定目录中的传入CSV文件
将其内容转换为XML
对其元素进行一些转换
将结果发送到另一个端点（在本例中为输出目录）

我希望让你前进（内联评论）：

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://ws.apache.org/ns/synapse">


<!-- ======================================== -->
<!-- Smooks configuration to parse sample CSV -->
<!-- ======================================== -->

<localEntry key="smooks-orders-csv">
    <smooks-resource-list
        xmlns="http://www.milyn.org/xsd/smooks-1.1.xsd" xmlns:csv="http://www.milyn.org/xsd/smooks/csv-1.2.xsd">
        <resource-config selector="org.xml.sax.driver">
            <resource>org.milyn.csv.CSVReader</resource>
            <param name="fields">OrderId,SKU,Quantity,UnitPrice,TotalPrice</param>
            <param name="skip-line-count">1</param> <!-- Skip Header line -->
            <param name="rootElementName">orders</param>
            <param name="recordElementName">order</param>
        </resource-config>
    </smooks-resource-list>
</localEntry>

<!-- ====================================================== -->
<!-- XML processing logic: Replaces SKU number 0002 to 0003 -->
<!-- ====================================================== -->

<localEntry key="change-sku">
    <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
        <xsl:template match="@*|node()">
            <xsl:copy>
                <xsl:apply-templates select="@*|node()"/>
            </xsl:copy>
        </xsl:template>
        <xsl:template match="SKU/text()[.='0002']">0003</xsl:template>
    </xsl:stylesheet>
    <description/>
</localEntry>   

<!-- *********************** -->
<!-- Process Orders sequence -->
<!-- *********************** -->

<sequence name="process_orders" onError="fault" statistics="enable" trace="enable">

    <!-- Convert incoming file into a stream of orders -->
    <smooks config-key="smooks-orders-csv">
        <input type="text"/>
        <output type="xml"/>
    </smooks>

    <!-- General Synapse properties that must be set for a One-Way exchange pattern -->
    <property name="FORCE_SC_ACCEPTED" scope="axis2" value="true"/>
    <property name="OUT_ONLY" value="true"/>

    <!-- VFS send will fail unless you remove this property -->
    <property action="remove" name="ClientApiNonBlocking" scope="axis2"/>

    <!-- The "magic" property 'transport.vfs.ReplyFileName' is used by the VFS transport to define output file name 
         when the specified URI is a directory
      -->
    <property
        expression="fn:concat(fn:substring-after(get-property('MessageID'), 'urn:uuid:'), '.xml')"
        name="transport.vfs.ReplyFileName" scope="transport" xmlns:ns="http://org.apache.synapse/xsd"/>

    <!-- Create output file -->
    <send>
        <endpoint>
            <address format="pox" uri="vfs:file:///mnt/c/transfer/out"/>
        </endpoint>
    </send>
</sequence>

<!-- Inbound polling endpoint -->
<inboundEndpoint name="received_orders" onError="fault"
    protocol="file" sequence="process_orders" suspend="false">
    <parameters>
        <parameter name="interval">1000</parameter>
        <parameter name="sequential">true</parameter>
        <parameter name="coordination">true</parameter>

        <!-- Input directory -->
        <parameter name="transport.vfs.FileURI">file:///mnt/c/transfer/in</parameter>

        <!-- CSV files are plain text messages -->
        <parameter name="transport.vfs.ContentType">text/plain</parameter>

        <!-- RegExp used to filter files in input directory -->
        <parameter name="transport.vfs.FileNamePattern">.*\.txt</parameter>
        <parameter name="transport.vfs.Locking">disable</parameter>

        <!-- Move processed files to the 'processed' subdirectory -->
        <parameter name="transport.vfs.ActionAfterProcess">MOVE</parameter>
        <parameter name="transport.vfs.MoveAfterProcess">file:///mnt/c/transfer/in/processed</parameter>

        <!-- Move failed files to the 'rejected  subdirectory -->
        <parameter name="transport.vfs.ActionAfterFailure">MOVE</parameter>
        <parameter name="transport.vfs.MoveAfterFailure">file:///mnt/c/transfer/in/rejected</parameter>

        <parameter name="transport.vfs.AutoLockRelease">true</parameter>
        <parameter name="transport.vfs.LockReleaseSameNode">false</parameter>
        <parameter name="transport.vfs.DistributedLock">false</parameter>
        <parameter name="transport.vfs.FileSortAttribute">NONE</parameter>
        <parameter name="transport.vfs.FileSortAscending">true</parameter>
        <parameter name="transport.vfs.CreateFolder">true</parameter>
        <parameter name="transport.vfs.Streaming">false</parameter>
        <parameter name="transport.vfs.Build">false</parameter>
    </parameters>
</inboundEndpoint>
</definitions>

WSO2 Integrator 6，文件入站协议进程代码

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