我正在使用非常大的csv文件并使用Mule Requester来读取文件的内容。 我配置了一个ftp连接器,并将流设置为" true"但是,当我尝试记录有效负载时,我可以看到Mule请求者正在返回一个字节数组,这意味着它会将文件的所有内容加载到内存中,我不希望这样。
这是我的流程:
<?xml version="1.0" encoding="UTF-8"?>
<mule xmlns:batch="http://www.mulesoft.org/schema/mule/batch" xmlns:mulerequester="http://www.mulesoft.org/schema/mule/mulerequester" xmlns:quartz="http://www.mulesoft.org/schema/mule/quartz" xmlns:ftp="http://www.mulesoft.org/schema/mule/ee/ftp" xmlns:tracking="http://www.mulesoft.org/schema/mule/ee/tracking" xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
xmlns:spring="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.mulesoft.org/schema/mule/ee/ftp http://www.mulesoft.org/schema/mule/ee/ftp/current/mule-ftp-ee.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-current.xsd
http://www.mulesoft.org/schema/mule/mulerequester http://www.mulesoft.org/schema/mule/mulerequester/current/mule-mulerequester.xsd
http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd
http://www.mulesoft.org/schema/mule/ee/tracking http://www.mulesoft.org/schema/mule/ee/tracking/current/mule-tracking-ee.xsd
http://www.mulesoft.org/schema/mule/quartz http://www.mulesoft.org/schema/mule/quartz/current/mule-quartz.xsd
http://www.mulesoft.org/schema/mule/batch http://www.mulesoft.org/schema/mule/batch/current/mule-batch.xsd">
<ftp:connector name="FTP" pollingFrequency="1000" streaming="true" validateConnections="true" doc:name="FTP"/>
<flow name="mulerequesterstreamFlow1" processingStrategy="synchronous">
<quartz:inbound-endpoint jobName="streamingTest" repeatInterval="15000" responseTimeout="10000" doc:name="Quartz">
<quartz:event-generator-job/>
</quartz:inbound-endpoint>
<flow-ref name="mulerequesterstreamFlow" doc:name="mulerequesterstreamFlow"/>
</flow>
<flow name="mulerequesterstreamFlow" processingStrategy="synchronous">
<mulerequester:request resource="ftp://vagrant:vagrant@192.168.1.9:21/home/vagrant/read_directory?connector=FTP" throwExceptionOnTimeout="true" doc:name="Mule Requester" />
<choice doc:name="Choice">
<when expression="#[payload != empty]">
<logger message="payload is not empty #[payload]" level="INFO" doc:name="Logger - payload"/>
</when>
<otherwise>
<logger message="empty payload" level="INFO" doc:name="Logger - log when payload is empty"/>
</otherwise>
</choice>
</flow>
</mule>
为简单起见,我已经删除了围绕这些流程的其他逻辑,但这个问题并不是必需的。
以下是记录的内容:
payload is not empty [B@3ac94399
答案 0 :(得分:0)
每当你试图传递csv文件然后确保在选择范围之前使用变换器并且在选择范围内拖动另一个变换器和记录器以获得结果,通过提供变压器来提及选择范围的“何时”条件在选择范围流中使用并将记录器放在每个范围内,以便迭代。确保不将变换器放在foreach范围内。