vvysotskyi commented on a change in pull request #2026: DRILL-7330: Implement
metadata usage for all format plugins
URL: https://github.com/apache/drill/pull/2026#discussion_r395078523
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/ColumnExplorer.java
##########
@@ -292,39 +289,86 @@ public static int getPartitionDepth(FileSelection
selection) {
* @param includeFileImplicitColumns if file implicit columns should be
included into the result
* @param fs file system
* @param index index of row group to populate
+ * @param start start of row group to populate
+ * @param length length of row group to populate
* @return implicit columns map
*/
public Map<String, String> populateImplicitAndInternalColumns(Path filePath,
List<String> partitionValues, boolean includeFileImplicitColumns,
FileSystem fs, int index, long start, long length) {
Map<String, String> implicitValues =
- new LinkedHashMap<>(populateImplicitColumns(filePath, partitionValues,
includeFileImplicitColumns));
+ new LinkedHashMap<>(populateImplicitAndInternalColumns(filePath,
partitionValues, includeFileImplicitColumns, fs));
- selectedInternalColumns.forEach((key, value) -> {
- switch (value) {
+ selectedInternalColumns.forEach(
+ (key, value) -> implicitValues.put(key, getImplicitColumnValue(value,
filePath, fs, index, start, length)));
+
+ return implicitValues;
+ }
+
+ /**
+ * Returns implicit column value for specified implicit file column.
+ *
+ * @param column implicit file column
+ * @param filePath file path, used to populate file implicit columns
+ * @param fs file system
+ * @param index row group index
+ * @param start row group start
+ * @param length row group length
+ * @return implicit column value for specified implicit file column
+ */
+ private static String getImplicitColumnValue(ImplicitFileColumn column, Path
filePath,
+ FileSystem fs, Integer index, Long start, Long length) {
+ if (column instanceof ImplicitFileColumns) {
+ ImplicitFileColumns fileColumn = (ImplicitFileColumns) column;
+ return fileColumn.getValue(filePath);
+ } else if (column instanceof ImplicitInternalFileColumns) {
+ ImplicitInternalFileColumns fileColumn = (ImplicitInternalFileColumns)
column;
+ switch (fileColumn) {
case ROW_GROUP_INDEX:
- implicitValues.put(key, String.valueOf(index));
- break;
+ return index != null ? String.valueOf(index) : null;
case ROW_GROUP_START:
- implicitValues.put(key, String.valueOf(start));
- break;
+ return start != null ? String.valueOf(start) : null;
case ROW_GROUP_LENGTH:
- implicitValues.put(key, String.valueOf(length));
- break;
+ return length != null ? String.valueOf(length) : null;
case PROJECT_METADATA:
- implicitValues.put(key, Boolean.TRUE.toString());
- break;
+ return Boolean.TRUE.toString();
case LAST_MODIFIED_TIME:
try {
- implicitValues.put(key,
String.valueOf(fs.getFileStatus(filePath).getModificationTime()));
+ return fs != null ?
String.valueOf(fs.getFileStatus(filePath).getModificationTime()) : null;
Review comment:
Ok, thanks!
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
With regards,
Apache Git Services
