Mule文件入站轮询配置 [英] Mule File Inbound Polling Configuration

问题描述

我想以特定的时间间隔一次从特定目录中轮询10个文件.如果该目录中存在250个文件，则入站的Mule文件应从250个文件中取出10个文件，然后再处理10个文件，依此类推.我的轮询频率值为"10000"

I want to poll 10 files at a time at certain time intervals from a particular directory. If there exists 250 files in that directory Mule file inbound should take 10 files out of 250 and process them then again 10 files etc.. I have polling frequence value "10000"

我试图像这样应用maxThreadsActive，但是它不起作用

I tried to apply maxThreadsActive like this but it doesnt work

<file:connector>
<receiver-thread-profile maxThreadsActive=10/>
</file:connector>

推荐答案

Mule使您可以覆盖传输实现的某些部分.在这种情况下，您应该覆盖org.mule.transport.file.FileMessageReceiver，尤其是listFiles()方法.

Mule lets you override certain parts of the transport implementation. In this case you should override org.mule.transport.file.FileMessageReceiver, specifically listFiles() method.

public class MyFileMessageReceiver extends FileMessageReceiver
{
    private static final MAX_FILES = 10;

    @Override
    List<File> listFiles() throws MuleException
    {
        try
        {
            List<File> files = new ArrayList<File>();
            this.basicListFiles(readDirectory, files);

            if(files.isEmpty())
                return NO_FILES;

            if(files.size() > MAX_FILES)
                return files.subList(0, MAX_FILES);
            else
                return files;
        }
        catch (Exception e)
        {
            throw new DefaultMuleException(FileMessages.errorWhileListingFiles(), e);
        }
    }
}

然后，创建一个将使用您的消息接收器的连接器

Then, create a connector that will use your message receiver

<file:connector name="inboundFileConnector"> 
    <service-overrides messageReceiver="org.mule.transport.file.MyFileMessageReceiver"/> 
</file:connector>

最后，您可以将此连接器与配置中的任何文件入站端点一起使用.您只需要指定轮询频率就可以了.

Finally you can use this connector with any file inbound endpoint in your config. You just have to specify the polling frequency and you're done.

HTH

这篇关于Mule文件入站轮询配置的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！