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在文件組件處理到文件夾「yyyy/yyyy-x.zip」之後，是否有辦法將名爲'yyyy-x.zip'的文件移動？我認爲以下幾點：處理後的Apache Camel移動文件
from("file://directory?preMove=working&move=${${file:onlyname}.substring(0,3)}/${file:onlyname}&moveFailed=error")
.doStuff(...);
但我總是得到以下異常。
org.apache.camel.language.simple.types.SimpleIllegalSyntaxException: Unknown function: ${file:onlyname}.toString().subString(0,3) at location 0 ${${file:onlyname}.toString().subString(0,3)}/${file:onlyname}
at org.apache.camel.language.simple.ast.SimpleFunctionStart$1.evaluate(SimpleFunctionStart.java:107)
at org.apache.camel.builder.ExpressionBuilder$75.evaluate(ExpressionBuilder.java:1795)
at org.apache.camel.support.ExpressionAdapter.evaluate(ExpressionAdapter.java:36)
at org.apache.camel.component.file.strategy.GenericFileExpressionRenamer.renameFile(GenericFileExpressionRenamer.java:37)
at org.apache.camel.component.file.strategy.GenericFileRenameProcessStrategy.commit(GenericFileRenameProcessStrategy.java:87)
at org.apache.camel.component.file.GenericFileOnCompletion.processStrategyCommit(GenericFileOnCompletion.java:127)
at org.apache.camel.component.file.GenericFileOnCompletion.onCompletion(GenericFileOnCompletion.java:83)
at org.apache.camel.component.file.GenericFileOnCompletion.onComplete(GenericFileOnCompletion.java:57)
at org.apache.camel.util.UnitOfWorkHelper.doneSynchronizations(UnitOfWorkHelper.java:104)
at org.apache.camel.impl.DefaultUnitOfWork.done(DefaultUnitOfWork.java:230)
at org.apache.camel.util.UnitOfWorkHelper.doneUow(UnitOfWorkHelper.java:65)
at org.apache.camel.processor.CamelInternalProcessor$UnitOfWorkProcessorAdvice.after(CamelInternalProcessor.java:674)
at org.apache.camel.processor.CamelInternalProcessor$UnitOfWorkProcessorAdvice.after(CamelInternalProcessor.java:629)
at org.apache.camel.processor.CamelInternalProcessor$InternalCallback.done(CamelInternalProcessor.java:246)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:109)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
at org.apache.camel.component.file.GenericFileConsumer.processExchange(GenericFileConsumer.java:460)
at org.apache.camel.component.file.GenericFileConsumer.processBatch(GenericFileConsumer.java:227)
at org.apache.camel.component.file.GenericFileConsumer.poll(GenericFileConsumer.java:191)
at org.apache.camel.impl.ScheduledPollConsumer.doRun(ScheduledPollConsumer.java:175)
at org.apache.camel.impl.ScheduledPollConsumer.run(ScheduledPollConsumer.java:102)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.camel.language.simple.types.SimpleParserException: Unknown function: ${file:onlyname}.toString().subString(0,3)
at org.apache.camel.language.simple.ast.SimpleFunctionExpression.createSimpleExpression(SimpleFunctionExpression.java:230)
at org.apache.camel.language.simple.ast.SimpleFunctionExpression.createExpression(SimpleFunctionExpression.java:45)
at org.apache.camel.language.simple.ast.SimpleFunctionStart$1.evaluate(SimpleFunctionStart.java:104)
... 27 common frames omitted
編輯：
由於克勞斯易卜生的提示，我設法拿到了以下解決方案：
from("file://directory?preMove=working&move=${bean:myBean.myMethod(${file:onlyname})}&moveFailed=error")
.doStuff(...);
通過以下豆：
import org.springframework.stereotype.Service;
@Service("myBean")
public class MyBeanImpl() implements MyBean{
@Override
public String myMethod(String fileName){
return ...create the filename...;
}
}