turcsanyip commented on a change in pull request #3504: NIFI-6318: Support EL
in CSV formatting properties
URL: https://github.com/apache/nifi/pull/3504#discussion_r304804499
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File path:
nifi-nar-bundles/nifi-standard-services/nifi-record-serialization-service-api/src/main/java/org/apache/nifi/serialization/RecordSetWriterFactory.java
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@@ -77,4 +77,24 @@
* @throws IOException if unable to read from the given InputStream
*/
RecordSetWriter createWriter(ComponentLog logger, RecordSchema schema,
OutputStream out) throws SchemaNotFoundException, IOException;
+
+ /**
+ * <p>
+ * Creates a new RecordSetWriter that is capable of writing record
contents to an OutputStream.
+ * This version of the overloaded method accepts a variables map that can
be used to resolve properties specified via Expression Language.
+ * The default implementation simply discards the variables map and
delegates the call to {@link #createWriter(ComponentLog, RecordSchema,
OutputStream)}.
+ * </p>
+ *
+ * @param logger the logger to use when logging information. This is
passed in, rather than using the logger of the Controller Service
+ * because it allows messages to be logged for the component
that is calling this Controller Service.
+ * @param schema the schema that will be used for writing records
+ * @param out the OutputStream to write to
+ * @param variables the variables which is used to resolve properties
specified via Expression Language
+ *
+ * @return a RecordSetWriter that can write record sets to an OutputStream
+ * @throws IOException if unable to read from the given InputStream
+ */
+ default RecordSetWriter createWriter(ComponentLog logger, RecordSchema
schema, OutputStream out, Map<String, String> variables) throws
SchemaNotFoundException, IOException {
Review comment:
Refactored.
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