Question

我正在使用具有自定义过滤器的SFTP入站适配器。我想要实现的是，如果过滤器接受该文件，则让它在消息流中移动，其中该文件将使用＆＃34;批量集成：job-launch-gateway＆＃34;传递给spring批处理作业。这工作正常。现在问题是，如果过滤器拒绝它，那么我希望它移动到某个目录，如＆＃34; / failed /＆＃34;如果在批处理期间如果jdbc事务失败，那么我也希望它移动到＆＃34; / failed /＆＃34; dir以便我们以后处理它们。我们如何在spring集成中将jdbc事务与此场景同步。

我在Spring集成中阅读了这个文档（http://docs.spring.io/spring-integration/reference/html/transactions.html），但不清楚，示例应用程序将是完美的，否则一些提示也可以。

配置

<context:component-scan base-package="com.sftp.test" />
<import resource="beans-context.xml" />

<!-- Default poller -->
<int:poller default="true" fixed-delay="5000"/>


<!-- SFTP inbound poller -->
<int-sftp:inbound-channel-adapter id="sftpInbondAdapter"
    channel="fileMessageChannel" session-factory="sftpSessionFactory"
    local-directory="${test.sftp.local.dir}" remote-directory="${test.sftp.remote.dir}"
    remote-file-separator="/" auto-create-local-directory="true"
    delete-remote-files="true" filename-pattern="*" local-filter="testFileFilter"
    preserve-timestamp="true" temporary-file-suffix=".writing"
    >

    <int:poller cron="${test.file.poll.frequency}"
        max-messages-per-poll="1">
        <int:transactional transaction-manager="transactionManager"
            synchronization-factory="syncFactory" /> 
    </int:poller>
</int-sftp:inbound-channel-adapter>

<int:transaction-synchronization-factory
    id="syncFactory">
    <int:after-commit expression="payload.renameTo('/tmp/dds/test/success/' + payload.name)"
        channel="committedChannel" />
    <int:after-rollback expression="payload.renameTo('/tmp/dds/test/failed/' + payload.name)"
        channel="rolledBackChannel" />
</int:transaction-synchronization-factory>

<int:channel id="committedChannel">
    <int:queue />
</int:channel>

<int:logging-channel-adapter channel="committedChannel" />


<int:channel id="rolledBackChannel">
    <int:queue />
</int:channel>

<int:logging-channel-adapter channel="rolledBackChannel" />


<!-- Channel where message with file name will be dropped by inbound sftp 
    channel adapter -->
<int:channel id="fileMessageChannel">
    <int:queue />
</int:channel>

<!-- Transform spring integration message to job launch request -->
<int:transformer input-channel="fileMessageChannel"
    output-channel="jobRequestChannel" id="jobLaunchMessageTransformer">
    <bean class="com.sftp.test.test.util.FileMessageToJobRequest">
        <property name="job" ref="testJob" />
        <property name="fileParameterName" value="fileName" />
    </bean>
</int:transformer>

<!-- Job request channel -->
<int:channel id="jobRequestChannel">
    <int:queue />
</int:channel>

<!-- The JobLaunchingGateway is used to launch Batch Jobs. Internally it 
    delegates to a JobLaunchingMessageHandler. -->
<batch-integration:job-launching-gateway
    request-channel="jobRequestChannel" reply-channel="jobLaunchReplyChannel" />

<!-- job response channel -->
<int:channel id="jobLaunchReplyChannel">
    <int:queue />
</int:channel>

<!-- Logging response received from job on jobLaunchReplyChannel -->

<int:outbound-channel-adapter channel="jobLaunchReplyChannel"   ref="fileProcessAdapter"    method="moveFile"/>

Answer 1

问题是您正在使用QueueChannel。一旦您将请求移交给另一个线程，轮询器事务就会＃34;提交＆＃34;。

您需要在轮询器线程上运行作业（从通道中删除<queue/>元素）。如果要同时运行多个作业，请将任务执行程序添加到轮询器。

此外，为了拒绝和重命名文件，您无法使用内部过滤器，因为过滤后的文件不会生成消息。您可以在过滤器中进行重命名，也可以在适配器中使用AcceptAllFileListFilter并在流中使用<filter/>（配置为在拒绝时抛出异常）。

SFTP入站适配器和事务同步

1 个答案: