Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/426#discussion_r26205234
--- Diff:
flink-java/src/main/java/org/apache/flink/api/java/io/CsvInputFormat.java ---
@@ -152,6 +177,38 @@ public void setFields(boolean[] sourceFieldMask,
Class<?>[] fieldTypes) {
public Class<?>[] getFieldTypes() {
return super.getGenericFieldTypes();
}
+
+ public void setFieldsMap(String[] fieldsMap) {
+ Preconditions.checkNotNull(fieldsMap);
+ Preconditions.checkState(typeInformation instanceof
PojoTypeInfo);
+
+ PojoTypeInfo<OUT> pojoTypeInfo = (PojoTypeInfo<OUT>)
typeInformation;
+
+ String[] fields = pojoTypeInfo.getFieldNames();
+ Class<?>[] fieldTypes = getFieldTypes();
+ this.fieldsMap = Arrays.copyOfRange(fieldsMap, 0,
fieldsMap.length);
+
+ boolean[] includeMask = new boolean[fieldsMap.length];
--- End diff --
The ``includeMask`` refers to the fields in the CsvFile and allows to skip
fields of the file.
For example if a line in your file looks like:
``Sam,Smith,09-15-1963,123.123``and you only want to read the first name
and the date field, you would set the ``includeMask`` to ``[true, false,
true]`` (missing fields are treated as ``false``).
So the ``includeMask`` should not depend on the ``fieldsMap``, but the
number of ``true`` entries in the ``includeMask`` must be equal to the number
for fields in the ``fieldsMap``.
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