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NIFI-1431: Added documentation about how ETag and LastModified dates are used by the Processor 

Signed-off-by: Matt Gilman <matt.c.gilman@gmail.com>
This commit is contained in:
Mark Payne 2016-01-28 15:24:55 -05:00 committed by Matt Gilman
parent 4e50263581
commit a0224f1b4c
1 changed files with 3 additions and 1 deletions
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nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GetHTTP.java
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@ -99,7 +99,9 @@ import org.apache.nifi.util.StopWatch;
@Tags({"get", "fetch", "poll", "http", "https", "ingest", "source", "input"})
@InputRequirement(Requirement.INPUT_FORBIDDEN)
@CapabilityDescription("Fetches a file via HTTP")
@CapabilityDescription("Fetches data from an HTTP or HTTPS URL and writes the data to the content of a FlowFile. Once the content has been fetched, the ETag and Last Modified "
+ "dates are remembered (if the web server supports these concepts). This allows the Processor to fetch new data only if the remote data has changed. That is, once the "
+ "content has been fetched from the given URL, it will not be fetched again until the content on the remote server changes.")
@WritesAttributes({
@WritesAttribute(attribute = "filename", description = "The filename is set to the name of the file on the remote server"),
@WritesAttribute(attribute = "mime.type", description = "The MIME Type of the FlowFile, as reported by the HTTP Content-Type header")