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NIFI-14215 - nifi-client - retrieve input/output content via provenance data #9676

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Feb 8, 2025
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NIFI-14215 - nifi-client - retrieve input/output content via provenance data #9676

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5 changes: 5 additions & 0 deletions ...it/nifi-toolkit-client/src/main/java/org/apache/nifi/toolkit/client/ProvenanceClient.java
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@
import org.apache.nifi.web.api.entity.ReplayLastEventResponseEntity;

import java.io.IOException;
import java.io.InputStream;

public interface ProvenanceClient {
ProvenanceEntity submitProvenanceQuery(ProvenanceEntity provenanceQuery) throws NiFiClientException, IOException;
Expand All @@ -40,6 +41,10 @@ public interface ProvenanceClient {

LatestProvenanceEventsEntity getLatestEvents(String processorId) throws NiFiClientException, IOException;

InputStream getInputFlowFileContent(String provenanceEventId, String nodeId) throws NiFiClientException, IOException;

InputStream getOutputFlowFileContent(String provenanceEventId, String nodeId) throws NiFiClientException, IOException;

enum ReplayEventNodes {
PRIMARY,
ALL;
Expand Down
39 changes: 39 additions & 0 deletions ...lkit-client/src/main/java/org/apache/nifi/toolkit/client/impl/JerseyProvenanceClient.java
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@
import org.apache.nifi.web.api.entity.ReplayLastEventResponseEntity;

import java.io.IOException;
import java.io.InputStream;
import java.util.Objects;

public class JerseyProvenanceClient extends AbstractJerseyClient implements ProvenanceClient {
Expand Down Expand Up @@ -149,4 +150,42 @@ public LatestProvenanceEventsEntity getLatestEvents(final String processorId) th
return getRequestBuilder(target).get(LatestProvenanceEventsEntity.class);
});
}

@Override
public InputStream getInputFlowFileContent(final String provenanceEventId, final String nodeId) throws NiFiClientException, IOException {
if (StringUtils.isBlank(provenanceEventId)) {
throw new IllegalArgumentException("Provenance Event ID must be specified");
}

return executeAction("Error retrieving Input FlowFile Content from provenance event", () -> {
WebTarget target = provenanceEventsTarget
.path("/{id}/content/input")
.resolveTemplate("id", provenanceEventId);

if (nodeId != null) {
target = target.queryParam("clusterNodeId", nodeId);
}

return getRequestBuilder(target).get(InputStream.class);
});
}

@Override
public InputStream getOutputFlowFileContent(String provenanceEventId, final String nodeId) throws NiFiClientException, IOException {
if (StringUtils.isBlank(provenanceEventId)) {
throw new IllegalArgumentException("Provenance Event ID must be specified");
}

return executeAction("Error retrieving Output FlowFile Content from provenance event", () -> {
WebTarget target = provenanceEventsTarget
.path("/{id}/content/output")
.resolveTemplate("id", provenanceEventId);

if (nodeId != null) {
target = target.queryParam("clusterNodeId", nodeId);
}

return getRequestBuilder(target).get(InputStream.class);
});
}
}