yashmayya commented on code in PR #13945:
URL: https://github.com/apache/kafka/pull/13945#discussion_r1259821859
##########
connect/file/src/main/java/org/apache/kafka/connect/file/FileStreamSourceConnector.java:
##########
@@ -101,4 +105,50 @@ public ExactlyOnceSupport exactlyOnceSupport(Map<String,
String> props) {
: ExactlyOnceSupport.UNSUPPORTED;
}
+ @Override
+ public boolean alterOffsets(Map<String, String> connectorConfig,
Map<Map<String, ?>, Map<String, ?>> offsets) {
+ AbstractConfig config = new AbstractConfig(CONFIG_DEF,
connectorConfig);
+ String filename = config.getString(FILE_CONFIG);
+ if (filename == null || filename.isEmpty()) {
+ // If the 'file' configuration is unspecified, stdin is used and
no offsets are tracked
+ throw new ConnectException("Offsets cannot be modified if the '" +
FILE_CONFIG + "' configuration is unspecified. " +
+ "This is because stdin is used for input and offsets are
not tracked.");
+ }
+
+ // This connector makes use of a single source partition at a time
which represents the file that it is configured to read from.
+ // However, there could also be source partitions from previous
configurations of the connector.
+ for (Map.Entry<Map<String, ?>, Map<String, ?>> partitionOffset :
offsets.entrySet()) {
+ Map<String, ?> partition = partitionOffset.getKey();
+ if (partition == null) {
+ throw new ConnectException("Partition objects cannot be null");
+ }
+
+ if (!partition.containsKey(FILENAME_FIELD)) {
+ throw new ConnectException("Partition objects should contain
the key '" + FILENAME_FIELD + "'");
+ }
+
+ Map<String, ?> offset = partitionOffset.getValue();
+ // null offsets are allowed and represent a deletion of offsets
for a partition
+ if (offset == null) {
+ return true;
Review Comment:
Whoops, thanks. I forgot that we're no longer doing the single partition
offset pair validation 🤦
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