Can't find file Resource using Spring Batch on Linux system - linux

Question

I'm running Spring Batch job on Linux (works fine on Windows). It's a simple file existence check but I am unable to get the system to find the path/file when it definitely exists. Does Spring's Resource class somehow automatically know when it's run on Linux or Windows? Is there something else I can do
My job definition
<batch:job id="vendorGoalsJob" restartable="true">
<batch:step id="checkStartFileExists" next="readHeaderFiles">
<batch:tasklet ref="startFileExistsTasklet" />
</batch:step>
more steps....
</batch:job>
<bean id="startFileExistsTasklet"
class="com.blah.blah.StartFileExistsTasklet"
scope="step">
<property name="resource" value="/di/global/Users/my filename with blanks.txt" />
</bean>
The tasklet class:
package com.blah.blah;
import static java.lang.String.format;
import org.apache.log4j.Logger;
import org.springframework.batch.core.StepContribution;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.core.step.tasklet.Tasklet;
import org.springframework.batch.repeat.RepeatStatus;
import org.springframework.core.io.Resource;
public class StartFileExistsTasklet implements Tasklet {
private static final Logger logger = Logger.getLogger(StartFileExistsTasklet.class);
private Resource resource;
public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {
if (!resource.isReadable()) {
logger.info(format("Resource %s not found.", resource.getFilename()));
chunkContext.getStepContext().getStepExecution().setTerminateOnly();
}
return RepeatStatus.FINISHED;
}
public void setResource(Resource resource) {
this.resource = resource;
}
}
...And I always get the 'not found message':
2013-09-26 15:47:09,342 handleStep Executing step: [checkStartFileExists] (SimpleStepHandler.java:133)
2013-09-26 15:47:09,352 execute Resource vendor-goal-trigger.txt not found.
2013-09-26 15:47:09,361 isInterrupted Step interrupted through StepExecution

Answer 1

The default RessourceLoader used by Spring loads from the classpath if the protocol is not specified in the ressource URL.
/**
* Default implementation of the {#link ResourceLoader} interface.
* Used by {#link ResourceEditor}, and serves as base class for
* {#link org.springframework.context.support.AbstractApplicationContext}.
* Can also be used standalone.
*
* <p>Will return a {#link UrlResource} if the location value is a URL,
* and a {#link ClassPathResource} if it is a non-URL path or a
* "classpath:" pseudo-URL.
*
* #author Juergen Hoeller
* #since 10.03.2004
* #see FileSystemResourceLoader
* #see org.springframework.context.support.ClassPathXmlApplicationContext
*/
public class DefaultResourceLoader implements ResourceLoader { ... }
You may try using the file: prefix:
<property name="resource" value="file:/di/global/Users/my filename with blanks.txt"/>