@Override
@SuppressWarnings({"unchecked", "deprecation"})
protected void populateAvroHeaders(Map<String, String> hdrs, Schema schema, Object message) {
if (!initialized) {
// initialize here rather than in activateOptions to avoid initialization
// cycle in Configuration and log4j
try {
URI datasetUri = new URIBuilder(datasetRepositoryUri, datasetName).build();
Dataset dataset = Datasets.load(datasetUri);
if (dataset.getDescriptor().isPartitioned()) {
partitionStrategy = dataset.getDescriptor().getPartitionStrategy();
}
URL schemaUrl = dataset.getDescriptor().getSchemaUrl();
if (schemaUrl != null) {
setAvroSchemaUrl(schemaUrl.toExternalForm());
}
} catch (Exception e) {
throw new FlumeException(e);
} finally {
initialized = true;
}
}
super.populateAvroHeaders(hdrs, schema, message);
if (partitionStrategy != null) {
key = PartitionKey.partitionKeyForEntity(partitionStrategy, message, key);
int i = 0;
for (FieldPartitioner fp : partitionStrategy.getFieldPartitioners()) {
hdrs.put(PARTITION_PREFIX + fp.getName(), fp.valueToString(key.get(i++)));
}
}
}
