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NIFI-1650: Ensure that we seek to the appropriate offset within the Content Claim when downloading content of a FlowFile

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This commit is contained in:
Mark Payne 2016-03-19 11:18:02 -04:00
parent 9cde92da16
commit d3578a7c03
1 changed files with 11 additions and 2 deletions
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13
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/controller/FlowController.java
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@ -158,6 +158,8 @@ import org.apache.nifi.reporting.ReportingInitializationContext;
import org.apache.nifi.reporting.ReportingTask;
import org.apache.nifi.reporting.Severity;
import org.apache.nifi.scheduling.SchedulingStrategy;
import org.apache.nifi.stream.io.LimitingInputStream;
import org.apache.nifi.stream.io.StreamUtils;
import org.apache.nifi.util.FormatUtils;
import org.apache.nifi.util.NiFiProperties;
import org.apache.nifi.util.ReflectionUtils;
@ -3381,7 +3383,7 @@ public class FlowController implements EventAccess, ControllerServiceProvider, R
requireNonNull(requestor);
requireNonNull(requestUri);
final InputStream stream;
InputStream stream;
final ResourceClaim resourceClaim;
final ContentClaim contentClaim = flowFile.getContentClaim();
if (contentClaim == null) {
@ -3390,6 +3392,12 @@ public class FlowController implements EventAccess, ControllerServiceProvider, R
} else {
resourceClaim = flowFile.getContentClaim().getResourceClaim();
stream = contentRepository.read(flowFile.getContentClaim());
final long contentClaimOffset = flowFile.getContentClaimOffset();
if (contentClaimOffset > 0L) {
StreamUtils.skip(stream, contentClaimOffset);
}
stream = new LimitingInputStream(stream, flowFile.getSize());
}
// Register a Provenance Event to indicate that we replayed the data.
@ -3406,7 +3414,8 @@ public class FlowController implements EventAccess, ControllerServiceProvider, R
.setDetails("Download of Content requested by " + requestor + " for " + flowFile);
if (contentClaim != null) {
sendEventBuilder.setCurrentContentClaim(resourceClaim.getContainer(), resourceClaim.getSection(), resourceClaim.getId(), contentClaim.getOffset(), flowFile.getSize());
sendEventBuilder.setCurrentContentClaim(resourceClaim.getContainer(), resourceClaim.getSection(), resourceClaim.getId(),
contentClaim.getOffset() + flowFile.getContentClaimOffset(), flowFile.getSize());
}
final ProvenanceEventRecord sendEvent = sendEventBuilder.build();