Jackie-Jiang commented on a change in pull request #8273:
URL: https://github.com/apache/pinot/pull/8273#discussion_r825474664
##########
File path:
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/recordtransformer/ComplexTypeTransformer.java
##########
@@ -89,25 +90,30 @@
private final List<String> _fieldsToUnnest;
private final String _delimiter;
private final ComplexTypeConfig.CollectionNotUnnestedToJson
_collectionNotUnnestedToJson;
+ private final Map<String, String> _prefixesToRename;
public ComplexTypeTransformer(TableConfig tableConfig) {
- this(parseFieldsToUnnest(tableConfig), parseDelimiter(tableConfig),
parseCollectionNotUnnestedToJson(tableConfig));
+ this(parseFieldsToUnnest(tableConfig), parseDelimiter(tableConfig),
+ parseCollectionNotUnnestedToJson(tableConfig),
parsePrefixesToRename(tableConfig));
}
@VisibleForTesting
ComplexTypeTransformer(List<String> fieldsToUnnest, String delimiter) {
- this(fieldsToUnnest, delimiter, DEFAULT_COLLECTION_TO_JSON_MODE);
+ this(fieldsToUnnest, delimiter, DEFAULT_COLLECTION_TO_JSON_MODE, new
HashMap<>());
}
@VisibleForTesting
- ComplexTypeTransformer(List<String> fieldsToUnnest, String delimiter,
- ComplexTypeConfig.CollectionNotUnnestedToJson
collectionNotUnnestedToJson) {
+ ComplexTypeTransformer(List<String> fieldsToUnnest,
Review comment:
(minor, code format) keep the Pinot Style format
##########
File path:
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/recordtransformer/ComplexTypeTransformer.java
##########
@@ -89,25 +90,30 @@
private final List<String> _fieldsToUnnest;
private final String _delimiter;
private final ComplexTypeConfig.CollectionNotUnnestedToJson
_collectionNotUnnestedToJson;
+ private final Map<String, String> _prefixesToRename;
public ComplexTypeTransformer(TableConfig tableConfig) {
- this(parseFieldsToUnnest(tableConfig), parseDelimiter(tableConfig),
parseCollectionNotUnnestedToJson(tableConfig));
+ this(parseFieldsToUnnest(tableConfig), parseDelimiter(tableConfig),
+ parseCollectionNotUnnestedToJson(tableConfig),
parsePrefixesToRename(tableConfig));
}
@VisibleForTesting
ComplexTypeTransformer(List<String> fieldsToUnnest, String delimiter) {
- this(fieldsToUnnest, delimiter, DEFAULT_COLLECTION_TO_JSON_MODE);
+ this(fieldsToUnnest, delimiter, DEFAULT_COLLECTION_TO_JSON_MODE, new
HashMap<>());
}
@VisibleForTesting
- ComplexTypeTransformer(List<String> fieldsToUnnest, String delimiter,
- ComplexTypeConfig.CollectionNotUnnestedToJson
collectionNotUnnestedToJson) {
+ ComplexTypeTransformer(List<String> fieldsToUnnest,
+ String delimiter,
+ ComplexTypeConfig.CollectionNotUnnestedToJson
collectionNotUnnestedToJson,
+ Map<String, String> prefixesToRename) {
_fieldsToUnnest = new ArrayList<>(fieldsToUnnest);
_delimiter = delimiter;
_collectionNotUnnestedToJson = collectionNotUnnestedToJson;
// the unnest fields are sorted to achieve the topological sort of the
collections, so that the parent collection
// (e.g. foo) is unnested before the child collection (e.g. foo.bar)
Collections.sort(_fieldsToUnnest);
+ _prefixesToRename = new HashMap<>(prefixesToRename);
Review comment:
Don't copy a new map since it will create unnecessary garbage
##########
File path:
pinot-spi/src/main/java/org/apache/pinot/spi/config/table/ingestion/ComplexTypeConfig.java
##########
@@ -44,13 +45,18 @@
@JsonPropertyDescription("The mode of converting collection to JSON string")
private final CollectionNotUnnestedToJson _collectionNotUnnestedToJson;
+ @JsonPropertyDescription("Map of <prefix, replacement> so matching fields
are renamed to start with the replacement")
+ private final Map<String, String> _prefixesToRename;
+
@JsonCreator
public ComplexTypeConfig(@JsonProperty("fieldsToUnnest") @Nullable
List<String> fieldsToUnnest,
@JsonProperty("delimiter") @Nullable String delimiter,
- @JsonProperty("collectionNotUnnestedToJson") @Nullable
CollectionNotUnnestedToJson collectionNotUnnestedToJson) {
+ @JsonProperty("collectionNotUnnestedToJson") @Nullable
CollectionNotUnnestedToJson collectionNotUnnestedToJson,
+ @JsonProperty("prefixesToRename") @Nullable
Map<String, String> prefixesToRename) {
Review comment:
(code format) reformat this
##########
File path:
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/recordtransformer/ComplexTypeTransformer.java
##########
@@ -89,25 +90,30 @@
private final List<String> _fieldsToUnnest;
private final String _delimiter;
private final ComplexTypeConfig.CollectionNotUnnestedToJson
_collectionNotUnnestedToJson;
+ private final Map<String, String> _prefixesToRename;
public ComplexTypeTransformer(TableConfig tableConfig) {
- this(parseFieldsToUnnest(tableConfig), parseDelimiter(tableConfig),
parseCollectionNotUnnestedToJson(tableConfig));
+ this(parseFieldsToUnnest(tableConfig), parseDelimiter(tableConfig),
+ parseCollectionNotUnnestedToJson(tableConfig),
parsePrefixesToRename(tableConfig));
}
@VisibleForTesting
ComplexTypeTransformer(List<String> fieldsToUnnest, String delimiter) {
- this(fieldsToUnnest, delimiter, DEFAULT_COLLECTION_TO_JSON_MODE);
+ this(fieldsToUnnest, delimiter, DEFAULT_COLLECTION_TO_JSON_MODE, new
HashMap<>());
Review comment:
(minor)
```suggestion
this(fieldsToUnnest, delimiter, DEFAULT_COLLECTION_TO_JSON_MODE,
Collections.emptyMap());
```
##########
File path:
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/recordtransformer/ComplexTypeTransformer.java
##########
@@ -279,6 +295,31 @@ protected void flattenMap(GenericRow record, List<String>
columns) {
}
}
+ /**
+ * Loops through all columns and renames the column's prefix with the
corresponding replacement if the prefix matches.
+ */
+ @VisibleForTesting
+ protected void renamePrefixes(GenericRow record) {
+ if (_prefixesToRename.isEmpty()) {
+ return;
+ }
+ List<String> fields = new
ArrayList<>(record.getFieldToValueMap().keySet());
Review comment:
Avoid creating this extra list
##########
File path:
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/utils/TableConfigUtils.java
##########
@@ -348,6 +349,23 @@ public static void validateIngestionConfig(TableConfig
tableConfig, @Nullable Sc
}
}
}
+
+ // Complex configs
+ ComplexTypeConfig complexTypeConfig =
ingestionConfig.getComplexTypeConfig();
+ if (complexTypeConfig != null && schema != null) {
+ Map<String, String> prefixesToRename =
complexTypeConfig.getPrefixesToRename();
+ Set<String> fieldNames = schema.getFieldSpecMap().keySet();
+ if (prefixesToRename != null) {
+ for (String prefix : prefixesToRename.keySet()) {
+ for (String field : fieldNames) {
+ if (field.startsWith(prefix)) {
Review comment:
(minor) Use `Preconditions.checkState()` with exception message template
to simplify this for readability
##########
File path:
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/utils/TableConfigUtils.java
##########
@@ -348,6 +349,23 @@ public static void validateIngestionConfig(TableConfig
tableConfig, @Nullable Sc
}
}
}
+
+ // Complex configs
+ ComplexTypeConfig complexTypeConfig =
ingestionConfig.getComplexTypeConfig();
+ if (complexTypeConfig != null && schema != null) {
+ Map<String, String> prefixesToRename =
complexTypeConfig.getPrefixesToRename();
+ Set<String> fieldNames = schema.getFieldSpecMap().keySet();
+ if (prefixesToRename != null) {
Review comment:
```suggestion
if (MapUtils.isNotEmpty(prefixesToRename)) {
```
##########
File path:
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/recordtransformer/ComplexTypeTransformer.java
##########
@@ -149,12 +155,22 @@ public static ComplexTypeTransformer
getComplexTypeTransformer(TableConfig table
}
}
+ private static Map<String, String> parsePrefixesToRename(TableConfig
tableConfig) {
+ if (tableConfig.getIngestionConfig() != null &&
tableConfig.getIngestionConfig().getComplexTypeConfig() != null
+ &&
tableConfig.getIngestionConfig().getComplexTypeConfig().getPrefixesToRename()
!= null) {
+ return
tableConfig.getIngestionConfig().getComplexTypeConfig().getPrefixesToRename();
+ } else {
+ return new HashMap<>();
Review comment:
(minor)
```suggestion
return Collections.emptyMap();
```
##########
File path:
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/recordtransformer/ComplexTypeTransformer.java
##########
@@ -279,6 +295,31 @@ protected void flattenMap(GenericRow record, List<String>
columns) {
}
}
+ /**
+ * Loops through all columns and renames the column's prefix with the
corresponding replacement if the prefix matches.
+ */
+ @VisibleForTesting
+ protected void renamePrefixes(GenericRow record) {
+ if (_prefixesToRename.isEmpty()) {
+ return;
+ }
+ List<String> fields = new
ArrayList<>(record.getFieldToValueMap().keySet());
+ for (String prefix : _prefixesToRename.keySet()) {
Review comment:
Use `.entrySet()` to avoid the extra map lookups on line 312
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