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NIFI-2928 added support to validate accessibility of the file system 

NIFI-2928 polishing

This closes #1160
This commit is contained in:
Oleg Zhurakousky 2016-10-26 12:57:37 -04:00 committed by Matt Burgess
parent 60da897e10
commit ed035f85e3
2 changed files with 20 additions and 2 deletions
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9
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/FetchFile.java
View File

@ -183,8 +183,13 @@ public class FetchFile extends AbstractProcessor {
final LogLevel levelPermDenied = LogLevel.valueOf(context.getProperty(PERM_DENIED_LOG_LEVEL).getValue());
final File file = new File(filename);
// Verify that file exists
if (!file.exists()) {
// Verify that file system is reachable and file exists
Path filePath = file.toPath();
if (!Files.exists(filePath) && !Files.notExists(filePath)){ // see https://docs.oracle.com/javase/tutorial/essential/io/check.html for more details
getLogger().log(levelFileNotFound, "Could not fetch file {} from file system for {} because the existence of the file cannot be verified; routing to failure", new Object[] {file, flowFile});
session.transfer(session.penalize(flowFile), REL_FAILURE);
return;
} else if (!Files.exists(filePath)) {
getLogger().log(levelFileNotFound, "Could not fetch file {} from file system for {} because the file does not exist; routing to not.found", new Object[] {file, flowFile});
session.getProvenanceReporter().route(flowFile, REL_NOT_FOUND);
session.transfer(session.penalize(flowFile), REL_NOT_FOUND);

13
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/test/java/org/apache/nifi/processors/standard/TestFetchFile.java
View File

@ -47,6 +47,19 @@ public class TestFetchFile {
}
}
@Test
public void notFound() throws IOException {
final File sourceFile = new File("notFound");
final TestRunner runner = TestRunners.newTestRunner(new FetchFile());
runner.setProperty(FetchFile.FILENAME, sourceFile.getAbsolutePath());
runner.setProperty(FetchFile.COMPLETION_STRATEGY, FetchFile.COMPLETION_NONE.getValue());
runner.enqueue(new byte[0]);
runner.run();
runner.assertAllFlowFilesTransferred(FetchFile.REL_NOT_FOUND, 1);
}
@Test
public void testSimpleSuccess() throws IOException {
final File sourceFile = new File("target/1.txt");