问题
I am not sure if my endpoints are setup correctly. My end goal is when I call stop on both adapters, that if a file is placed in either directory where the inbound channel adapters are polling, the file will not be processed. Which is not the case -- files are still getting polled and processed.
Currently, when the code runs, from the very start, 6 Task Schedulers are launched:
2015-08-03 18:12:40,011 [task-scheduler-6] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:12:40,011 [task-scheduler-5] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:12:40,011 [task-scheduler-8] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:12:40,011 [task-scheduler-1] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:12:40,011 [task-scheduler-3] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:12:40,011 [task-scheduler-1] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
When I issue a stop
@'mecFilePoller.fileMessageSourceMDW.inboundChannelAdapter'.stop()
on one of the adapters, I am left with 5 Task Schedulers. Here is the stop command being issued:
2015-08-03 18:15:28,392 [http-8080-1] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'control'
2015-08-03 18:15:28,392 [http-8080-1] DEBUG org.springframework.integration.channel.DirectChannel - preSend on channel 'control', message: GenericMessage [payload=@'mecFilePoller.fileMessageSourceMDW.inboundChannelAdapter'.stop(), headers={timestamp=1438650928392, id=8107d99e-667c-1e78-31a0-dbcac2a6b03e}]
2015-08-03 18:15:28,392 [http-8080-1] DEBUG org.springframework.integration.handler.ServiceActivatingHandler - ServiceActivator for [org.springframework.integration.handler.ExpressionCommandMessageProcessor@f275f321] received message: GenericMessage [payload=@'mecFilePoller.fileMessageSourceMDW.inboundChannelAdapter'.stop(), headers={timestamp=1438650928392, id=8107d99e-667c-1e78-31a0-dbcac2a6b03e}]
2015-08-03 18:15:28,407 [http-8080-1] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'mecFilePoller.fileMessageSourceMDW.inboundChannelAdapter'
2015-08-03 18:15:28,407 [http-8080-1] INFO org.springframework.integration.endpoint.SourcePollingChannelAdapter - stopped mecFilePoller.fileMessageSourceMDW.inboundChannelAdapter
2015-08-03 18:15:28,407 [http-8080-1] DEBUG org.springframework.integration.handler.ServiceActivatingHandler - handler 'ServiceActivator for [org.springframework.integration.handler.ExpressionCommandMessageProcessor@f275f321]' produced no reply for request Message: GenericMessage [payload=@'mecFilePoller.fileMessageSourceMDW.inboundChannelAdapter'.stop(), headers={timestamp=1438650928392, id=8107d99e-667c-1e78-31a0-dbcac2a6b03e}]
2015-08-03 18:15:28,407 [http-8080-1] DEBUG org.springframework.integration.channel.DirectChannel - postSend (sent=true) on channel 'control', message: GenericMessage [payload=@'mecFilePoller.fileMessageSourceMDW.inboundChannelAdapter'.stop(), headers={timestamp=1438650928392, id=8107d99e-667c-1e78-31a0-dbcac2a6b03e}]
And here are the resulting Task Schedulers after the first stop command, there are only 5 now:
2015-08-03 18:15:30,017 [task-scheduler-7] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:15:30,017 [task-scheduler-1] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:15:30,017 [task-scheduler-6] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:15:30,017 [task-scheduler-10] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:15:30,017 [task-scheduler-2] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
When I issue the second stop on the second adapter
@'mecFilePoller.fileMessageSourceSSN.inboundChannelAdapter'.stop()
Here is the command:
2015-08-03 18:21:49,652 [http-8080-1] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'control'
2015-08-03 18:21:49,668 [http-8080-1] DEBUG org.springframework.integration.channel.DirectChannel - preSend on channel 'control', message: GenericMessage [payload=@'mecFilePoller.fileMessageSourceSSN.inboundChannelAdapter'.stop(), headers={timestamp=1438651309652, id=d4ba5ca8-db6f-4ee9-564e-9a2df2f6fb4d}]
2015-08-03 18:21:49,668 [http-8080-1] DEBUG org.springframework.integration.handler.ServiceActivatingHandler - ServiceActivator for [org.springframework.integration.handler.ExpressionCommandMessageProcessor@f275f321] received message: GenericMessage [payload=@'mecFilePoller.fileMessageSourceSSN.inboundChannelAdapter'.stop(), headers={timestamp=1438651309652, id=d4ba5ca8-db6f-4ee9-564e-9a2df2f6fb4d}]
2015-08-03 18:21:49,668 [http-8080-1] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'mecFilePoller.fileMessageSourceSSN.inboundChannelAdapter'
2015-08-03 18:21:49,668 [http-8080-1] INFO org.springframework.integration.endpoint.SourcePollingChannelAdapter - stopped mecFilePoller.fileMessageSourceSSN.inboundChannelAdapter
2015-08-03 18:21:49,668 [http-8080-1] DEBUG org.springframework.integration.handler.ServiceActivatingHandler - handler 'ServiceActivator for [org.springframework.integration.handler.ExpressionCommandMessageProcessor@f275f321]' produced no reply for request Message: GenericMessage [payload=@'mecFilePoller.fileMessageSourceSSN.inboundChannelAdapter'.stop(), headers={timestamp=1438651309652, id=d4ba5ca8-db6f-4ee9-564e-9a2df2f6fb4d}]
2015-08-03 18:21:49,668 [http-8080-1] DEBUG org.springframework.integration.channel.DirectChannel - postSend (sent=true) on channel 'control', message: GenericMessage [payload=@'mecFilePoller.fileMessageSourceSSN.inboundChannelAdapter'.stop(), headers={timestamp=1438651309652, id=d4ba5ca8-db6f-4ee9-564e-9a2df2f6fb4d}]
I am left with 4 Task Schedulers:
2015-08-03 18:23:40,014 [task-scheduler-2] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:23:40,014 [task-scheduler-6] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:23:40,014 [task-scheduler-5] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 18:23:40,014 [task-scheduler-7] DEBUG org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
Here is the code MecFilePoller class:
@Configuration
@PropertySource("classpath:mec.properties")
@EnableIntegration
@IntegrationComponentScan
public class MecFilePoller {
private Job job;
private String fileParameterName;
@Autowired
MecProperty mecProperty;
@Bean
MessageChannel control() {
return new DirectChannel();
}
@Bean
@ServiceActivator(inputChannel="control")
public ExpressionControlBusFactoryBean controlBus() {
return new ExpressionControlBusFactoryBean();
}
public void setFileParameterName(String fileParameterName) {
this.fileParameterName = fileParameterName;
}
public void setJob(Job job) {
this.job = job;
}
@Bean
@InboundChannelAdapter(value = "ssnInboundFileChannel", poller = @Poller(cron="${mec/SSN_POLLER}"))
public MessageSource<File> fileMessageSourceSSN() {
System.out.println("SSN POLLING...");
FileReadingMessageSource source = initialSetUp();
source.setDirectory(new File(mecProperty.getProperty(MecConstants.SSN_SFTP_WORKING_DIR)));
System.out.println("enter fileMessageSource in following dir....." + mecProperty.getProperty(MecConstants.SSN_SFTP_WORKING_DIR));
return source;
}
@Bean
@InboundChannelAdapter(value = "mdwInboundFileChannel", poller = @Poller(cron="${mec/MDW_POLLER}"))
public MessageSource<File> fileMessageSourceMDW() {
System.out.println("MDW POLLING...");
FileReadingMessageSource source = initialSetUp();
source.setDirectory(new File(mecProperty.getProperty(MecConstants.MDW_SFTP_WORKING_DIR)));
System.out.println("enter fileMessageSource in following dir....." + mecProperty.getProperty(MecConstants.MDW_SFTP_WORKING_DIR));
return source;
}
private FileReadingMessageSource initialSetUp() {
FileReadingMessageSource source = new FileReadingMessageSource();
CompositeFileListFilter<File> compositeFileListFilter = new CompositeFileListFilter<File>();
SimplePatternFileListFilter simplePatternFileListFilter = new SimplePatternFileListFilter("*.done");
AcceptOnceFileListFilter<File> acceptOnceFileListFilter = new AcceptOnceFileListFilter<File>();
compositeFileListFilter.addFilter(simplePatternFileListFilter);
compositeFileListFilter.addFilter(acceptOnceFileListFilter);
source.setFilter(compositeFileListFilter);
return source;
}
@Transformer(inputChannel="mdwInboundFileChannel",outputChannel="mdwOutboundJobRequestChannel")
public JobLaunchRequest toRequestMDW(Message<File> message) {
JobParametersBuilder jobParametersBuilder = new JobParametersBuilder();
jobParametersBuilder.addString(INPUT_FILE_NAME, message.getPayload().getAbsolutePath());
return new JobLaunchRequest((Job) appContext.getBean("mecmdwJob"), jobParametersBuilder.toJobParameters());
}
@Transformer(inputChannel="ssnInboundFileChannel",outputChannel="ssnOutboundJobRequestChannel")
public JobLaunchRequest toRequestSSN(Message<File> message) {
JobParametersBuilder jobParametersBuilder = new JobParametersBuilder();
jobParametersBuilder.addString(INPUT_FILE_NAME, message.getPayload().getAbsolutePath());
return new JobLaunchRequest((Job) appContext.getBean("mecssnJob"), jobParametersBuilder.toJobParameters());
}
public void commandTypePollerRequest(String command, String type) {
if(command.equals("stop") && type.equals("mdw")){
control().send(new GenericMessage<String>(
"@'mecFilePoller.fileMessageSourceMDW.inboundChannelAdapter'.stop()"));
}
else if(command.equals("stop") && type.equals("ssn")){
control().send(new GenericMessage<String>(
"@'mecFilePoller.fileMessageSourceSSN.inboundChannelAdapter'.stop()"));
}
else if(command.equals("start") && type.equals("mdw")){
control().send(new GenericMessage<String>(
"@'mecFilePoller.fileMessageSourceMDW.inboundChannelAdapter'.start()"));
}
else if(command.equals("start") && type.equals("ssn")){
control().send(new GenericMessage<String>(
"@'mecFilePoller.fileMessageSourceSSN.inboundChannelAdapter'.start()"));
}
}
}
Here is the MecPollerController class:
@Controller
public class MECPollerController {
@Autowired
MecFilePoller mecFilePoller;
@Autowired
private ApplicationContext appContext;
@Autowired
MessageChannel ssnOutboundJobRequestChannel;
@Autowired
MessageChannel mdwOutboundJobRequestChannel;
@RequestMapping(value = "ui/stopMdwPoller.action", method = RequestMethod.GET)
public void stopMdwPollerRequest() {
mecFilePoller.commandTypePollerRequest("stop","mdw");
}
@RequestMapping(value = "ui/stopSsnPoller.action", method = RequestMethod.GET)
public void stopSsnPollerRequest() {
mecFilePoller.commandTypePollerRequest("stop","ssn");
}
@RequestMapping(value = "ui/startMdwPoller.action", method = RequestMethod.GET)
public void startMdwPollerRequest() {
mecFilePoller.commandTypePollerRequest("start","mdw");
}
@RequestMapping(value = "ui/startSsnPoller.action", method = RequestMethod.GET)
public void startSsnPollerRequest() {
mecFilePoller.commandTypePollerRequest("start","ssn");
}
}
Here is the XML config for the one Spring Batch job, job-mecmdw.xml:
<int:channel id="mdwInboundFileChannel" />
<int:channel id="mdwOutboundJobRequestChannel" />
<int:channel id="mdwJobLaunchReplyChannel" />
<int:annotation-config />
<bean class="org.springframework.integration.core.MessagingTemplate"></bean>
<!-- THIS WAS MOVED TO MecFilePoller
<int:transformer input-channel="mdwInboundFileChannel" output-channel="mdwOutboundJobRequestChannel">
<bean
class="org.batch.poller.MecFilePoller">
<property name="job" ref="mecmdwJob" />
<property name="fileParameterName" value="input.file.name" />
</bean>
</int:transformer>
-->
<batch-int:job-launching-gateway request-channel="mdwOutboundJobRequestChannel" reply-channel="mdwJobLaunchReplyChannel" />
<int:logging-channel-adapter channel="mdwJobLaunchReplyChannel" />
Here is the XML config for the other Spring Batch job, job-mecssn.xml:
<int:annotation-config />
<int:channel id="ssnInboundFileChannel" />
<int:channel id="ssnOutboundJobRequestChannel" />
<int:channel id="ssnJobLaunchReplyChannel" />
<!-- THIS WAS MOVED TO MecFilePoller
<int:transformer input-channel="ssnInboundFileChannel"
output-channel="ssnOutboundJobRequestChannel">
<bean
class="org.batch.poller.MecFilePoller">
<property name="job" ref="mecssnJob" />
<property name="fileParameterName" value="input.file.name" />
</bean>
</int:transformer>
-->
<batch-int:job-launching-gateway request-channel="ssnOutboundJobRequestChannel" reply-channel="ssnJobLaunchReplyChannel" />
<int:logging-channel-adapter channel="ssnJobLaunchReplyChannel" />
回答1:
Inbound channel adapters consist of (at least two) beans; in this case, a MessageSource and a SourcePollingChannelAdapter.
In your example, the message source gets the specified bean name (filePoller). The channel adapter's name is generated, and will be
filePoller.fileMessageSource.inboundChannelAdapter
(@Configuration class bean name + method name + type)
We have an open JIRA issue to document these generated bean names.
Since the name is dotted, you'll need to quote it when using the control bus:
@'filePoller.fileMessageSource.inboundChannelAdapter'.stop()
EDIT
I just tested this and it works just fine...
@Configuration
@EnableIntegration
public class Foo {
@Bean
QueueChannel inboundFileChannel() {
return new QueueChannel();
}
@Bean
@InboundChannelAdapter(value = "inboundFileChannel", poller = @Poller(fixedDelay="1000"))
public MessageSource<?> fileMessageSource() {
MessageSource<?> source = mock(MessageSource.class);
return source;
}
@Bean
MessageChannel control() {
return new DirectChannel();
}
@Bean
@ServiceActivator(inputChannel="control")
public ExpressionControlBusFactoryBean controlBus() {
return new ExpressionControlBusFactoryBean();
}
public static void main(String[] args) throws Exception {
AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(Foo.class);
Thread.sleep(2000);
ctx.getBean("control", MessageChannel.class).send(
new GenericMessage<String>("@'foo.fileMessageSource.inboundChannelAdapter'.stop()"));
assertFalse(ctx.getBean(SourcePollingChannelAdapter.class).isRunning());
Thread.sleep(2000);
ctx.close();
}
}
EDIT2 :
I put some sleeps in my example above and see this...
2015-08-03 12:23:34,528 [task-scheduler-1] DEBUG: org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 12:23:35,530 [task-scheduler-2] DEBUG: org.springframework.integration.endpoint.SourcePollingChannelAdapter - Received no Message during the poll, returning 'false'
2015-08-03 12:23:35,615 [main] DEBUG: org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'control'
2015-08-03 12:23:35,616 [main] DEBUG: org.springframework.integration.channel.DirectChannel - preSend on channel 'control', message: GenericMessage [payload=@'foo.fileMessageSource.inboundChannelAdapter'.stop(), headers={id=d0049777-025c-5439-6ee7-d66bce34868a, timestamp=1438619015616}]
2015-08-03 12:23:35,616 [main] DEBUG: org.springframework.integration.handler.ServiceActivatingHandler - ServiceActivator for [org.springframework.integration.handler.ExpressionCommandMessageProcessor@1e0b4072] received message: GenericMessage [payload=@'foo.fileMessageSource.inboundChannelAdapter'.stop(), headers={id=d0049777-025c-5439-6ee7-d66bce34868a, timestamp=1438619015616}]
2015-08-03 12:23:35,617 [main] DEBUG: org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'foo.fileMessageSource.inboundChannelAdapter'
2015-08-03 12:23:35,618 [main] INFO : org.springframework.integration.endpoint.SourcePollingChannelAdapter - stopped foo.fileMessageSource.inboundChannelAdapter
2015-08-03 12:23:35,618 [main] DEBUG: org.springframework.integration.handler.ServiceActivatingHandler - handler 'ServiceActivator for [org.springframework.integration.handler.ExpressionCommandMessageProcessor@1e0b4072]' produced no reply for request Message: GenericMessage [payload=@'foo.fileMessageSource.inboundChannelAdapter'.stop(), headers={id=d0049777-025c-5439-6ee7-d66bce34868a, timestamp=1438619015616}]
2015-08-03 12:23:35,618 [main] DEBUG: org.springframework.integration.channel.DirectChannel - postSend (sent=true) on channel 'control', message: GenericMessage [payload=@'foo.fileMessageSource.inboundChannelAdapter'.stop(), headers={id=d0049777-025c-5439-6ee7-d66bce34868a, timestamp=1438619015616}]
2015-08-03 12:23:35,618 [main] DEBUG: org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'foo.fileMessageSource.inboundChannelAdapter'
(no polls after the stop).
来源：https://stackoverflow.com/questions/31777621/spring-batch-integration-start-stop-file-adapter-from-controller