readFileMetaData(from, consumer, false);
}
public static void readFileMetaData(InputStream from, final FileMetaDataConsumer consumer, boolean skipRowGroups) throws IOException {
try {
DelegatingFieldConsumer eventConsumer = fieldConsumer()
.onField(VERSION, new I32Consumer() {
@Override
public void consume(int value) {
consumer.setVersion(value);
}
}).onField(SCHEMA, listOf(SchemaElement.class, new Consumer<List<SchemaElement>>() {
@Override
public void consume(List<SchemaElement> schema) {
consumer.setSchema(schema);
}
})).onField(NUM_ROWS, new I64Consumer() {
@Override
public void consume(long value) {
consumer.setNumRows(value);
}
}).onField(KEY_VALUE_METADATA, listElementsOf(struct(KeyValue.class, new Consumer<KeyValue>() {
@Override
public void consume(KeyValue kv) {
consumer.addKeyValueMetaData(kv);
}
}))).onField(CREATED_BY, new StringConsumer() {
@Override
public void consume(String value) {
consumer.setCreatedBy(value);
}
});
if (!skipRowGroups) {
eventConsumer = eventConsumer.onField(ROW_GROUPS, listElementsOf(struct(RowGroup.class, new Consumer<RowGroup>() {
@Override
public void consume(RowGroup rowGroup) {
consumer.addRowGroup(rowGroup);
}
})));