FANNG1 commented on code in PR #4349:
URL: https://github.com/apache/gravitino/pull/4349#discussion_r1703513023
##########
catalogs/catalog-lakehouse-paimon/src/main/java/org/apache/gravitino/catalog/lakehouse/paimon/utils/TableOpsUtils.java:
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@@ -18,20 +18,127 @@
*/
package org.apache.gravitino.catalog.lakehouse.paimon.utils;
+import static
org.apache.gravitino.catalog.lakehouse.paimon.PaimonTablePropertiesMetadata.COMMENT;
+import static
org.apache.gravitino.catalog.lakehouse.paimon.PaimonTablePropertiesMetadata.checkReservedProperties;
+import static
org.apache.gravitino.catalog.lakehouse.paimon.utils.TypeUtils.toPaimonType;
+import static org.apache.paimon.schema.SchemaChange.addColumn;
+import static org.apache.paimon.schema.SchemaChange.dropColumn;
+import static org.apache.paimon.schema.SchemaChange.removeOption;
+import static org.apache.paimon.schema.SchemaChange.renameColumn;
+import static org.apache.paimon.schema.SchemaChange.setOption;
+import static org.apache.paimon.schema.SchemaChange.updateColumnComment;
+import static org.apache.paimon.schema.SchemaChange.updateColumnNullability;
+import static org.apache.paimon.schema.SchemaChange.updateColumnPosition;
+import static org.apache.paimon.schema.SchemaChange.updateColumnType;
+import static org.apache.paimon.schema.SchemaChange.updateComment;
+
+import com.google.common.base.Joiner;
import com.google.common.base.Preconditions;
+import java.util.ArrayList;
+import java.util.List;
import org.apache.gravitino.catalog.lakehouse.paimon.ops.PaimonCatalogOps;
import org.apache.gravitino.rel.Column;
+import org.apache.gravitino.rel.TableChange;
+import org.apache.gravitino.rel.TableChange.AddColumn;
+import org.apache.gravitino.rel.TableChange.After;
+import org.apache.gravitino.rel.TableChange.ColumnChange;
+import org.apache.gravitino.rel.TableChange.ColumnPosition;
+import org.apache.gravitino.rel.TableChange.Default;
+import org.apache.gravitino.rel.TableChange.DeleteColumn;
+import org.apache.gravitino.rel.TableChange.First;
+import org.apache.gravitino.rel.TableChange.RemoveProperty;
+import org.apache.gravitino.rel.TableChange.RenameColumn;
+import org.apache.gravitino.rel.TableChange.SetProperty;
+import org.apache.gravitino.rel.TableChange.UpdateColumnComment;
+import org.apache.gravitino.rel.TableChange.UpdateColumnNullability;
+import org.apache.gravitino.rel.TableChange.UpdateColumnPosition;
+import org.apache.gravitino.rel.TableChange.UpdateColumnType;
+import org.apache.gravitino.rel.TableChange.UpdateComment;
import org.apache.gravitino.rel.expressions.Expression;
+import org.apache.paimon.schema.SchemaChange;
+import org.apache.paimon.schema.SchemaChange.Move;
/** Utilities of {@link PaimonCatalogOps} to support table operation. */
public class TableOpsUtils {
+ public static final Joiner DOT = Joiner.on(".");
+
public static void checkColumnCapability(
String fieldName, Expression defaultValue, boolean autoIncrement) {
checkColumnDefaultValue(fieldName, defaultValue);
checkColumnAutoIncrement(fieldName, autoIncrement);
}
+ public static List<SchemaChange> buildSchemaChanges(TableChange...
tableChanges)
+ throws UnsupportedOperationException {
+ List<SchemaChange> schemaChanges = new ArrayList<>();
+ for (TableChange tableChange : tableChanges) {
+ schemaChanges.add(buildSchemaChange(tableChange));
+ }
+ return schemaChanges;
+ }
+
+ public static SchemaChange buildSchemaChange(TableChange tableChange)
+ throws UnsupportedOperationException {
+ if (tableChange instanceof ColumnChange) {
+ String[] fieldNames = ((ColumnChange) tableChange).fieldName();
+ checkNestedColumn(fieldNames);
+
+ if (tableChange instanceof AddColumn) {
+ AddColumn addColumn = (AddColumn) tableChange;
+ String fieldName = fieldName(addColumn);
+ checkColumnCapability(fieldName, addColumn.getDefaultValue(),
addColumn.isAutoIncrement());
+ return addColumn(
+ fieldName,
+ toPaimonType(addColumn.getDataType()).copy(addColumn.isNullable()),
+ addColumn.getComment(),
+ move(fieldName, addColumn.getPosition()));
+ } else if (tableChange instanceof DeleteColumn) {
+ return dropColumn(fieldName((DeleteColumn) tableChange));
+ } else if (tableChange instanceof RenameColumn) {
+ RenameColumn renameColumn = ((RenameColumn) tableChange);
+ return renameColumn(fieldName(renameColumn),
renameColumn.getNewName());
+ } else if (tableChange instanceof UpdateColumnComment) {
+ UpdateColumnComment updateColumnComment = (UpdateColumnComment)
tableChange;
+ return updateColumnComment(
+ fieldName(updateColumnComment),
updateColumnComment.getNewComment());
+ } else if (tableChange instanceof UpdateColumnNullability) {
+ UpdateColumnNullability updateColumnNullability =
(UpdateColumnNullability) tableChange;
+ return updateColumnNullability(
+ fieldName(updateColumnNullability),
updateColumnNullability.nullable());
+ } else if (tableChange instanceof UpdateColumnPosition) {
+ UpdateColumnPosition updateColumnPosition = (UpdateColumnPosition)
tableChange;
+ return updateColumnPosition(
+ move(fieldName(updateColumnPosition),
updateColumnPosition.getPosition()));
+ } else if (tableChange instanceof UpdateColumnType) {
+ UpdateColumnType updateColumnType = (UpdateColumnType) tableChange;
+ return updateColumnType(
+ fieldName(updateColumnType),
toPaimonType(updateColumnType.getNewDataType()));
+ }
+ } else if (tableChange instanceof UpdateComment) {
+ return updateComment(((UpdateComment) tableChange).getNewComment());
+ } else if (tableChange instanceof SetProperty) {
+ SetProperty setProperty = ((SetProperty) tableChange);
+ String setPropertyKey = setProperty.getProperty();
+ checkReservedProperties(setPropertyKey);
Review Comment:
reserved properties are not allowed to alter, no need to check again
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