[GitHub] [iceberg] RussellSpitzer commented on a change in pull request #2210: Adds AddFiles Procedure

[GitBox <gi...@apache.org>]

RussellSpitzer commented on a change in pull request #2210:
URL: https://github.com/apache/iceberg/pull/2210#discussion_r586764991



##########
File path: spark3/src/main/java/org/apache/iceberg/spark/procedures/AddFilesProcedure.java
##########
@@ -0,0 +1,319 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+
+package org.apache.iceberg.spark.procedures;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.stream.Collectors;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.iceberg.AppendFiles;
+import org.apache.iceberg.DataFile;
+import org.apache.iceberg.MetricsConfig;
+import org.apache.iceberg.PartitionField;
+import org.apache.iceberg.PartitionSpec;
+import org.apache.iceberg.Snapshot;
+import org.apache.iceberg.SnapshotSummary;
+import org.apache.iceberg.Table;
+import org.apache.iceberg.TableProperties;
+import org.apache.iceberg.mapping.MappingUtil;
+import org.apache.iceberg.mapping.NameMapping;
+import org.apache.iceberg.mapping.NameMappingParser;
+import org.apache.iceberg.relocated.com.google.common.collect.ImmutableList;
+import org.apache.iceberg.relocated.com.google.common.collect.Maps;
+import org.apache.iceberg.spark.Spark3Util;
+import org.apache.iceberg.spark.SparkTableUtil;
+import org.apache.spark.sql.catalyst.InternalRow;
+import org.apache.spark.sql.catalyst.catalog.CatalogTable;
+import org.apache.spark.sql.connector.catalog.Identifier;
+import org.apache.spark.sql.connector.catalog.TableCatalog;
+import org.apache.spark.sql.connector.iceberg.catalog.ProcedureParameter;
+import org.apache.spark.sql.types.DataTypes;
+import org.apache.spark.sql.types.Metadata;
+import org.apache.spark.sql.types.StructField;
+import org.apache.spark.sql.types.StructType;
+import scala.Option;
+import scala.runtime.BoxedUnit;
+
+public class AddFilesProcedure extends BaseProcedure {
+
+  enum Format {
+    catalog,
+    orc,
+    parquet
+  }
+
+  private static final ProcedureParameter[] PARAMETERS = new ProcedureParameter[]{
+      ProcedureParameter.required("table", DataTypes.StringType),
+      ProcedureParameter.required("source_table", DataTypes.StringType),
+      ProcedureParameter.optional("partition", STRING_MAP)
+  };
+
+  private static final StructType OUTPUT_TYPE = new StructType(new StructField[]{
+      new StructField("added_files_count", DataTypes.LongType, false, Metadata.empty())
+  });
+
+  private AddFilesProcedure(TableCatalog tableCatalog) {
+    super(tableCatalog);
+  }
+
+  public static SparkProcedures.ProcedureBuilder builder() {
+    return new BaseProcedure.Builder<AddFilesProcedure>() {
+      @Override
+      protected AddFilesProcedure doBuild() {
+        return new AddFilesProcedure(tableCatalog());
+      }
+    };
+  }
+
+  @Override
+  public ProcedureParameter[] parameters() {
+    return PARAMETERS;
+  }
+
+  @Override
+  public StructType outputType() {
+    return OUTPUT_TYPE;
+  }
+
+  @Override
+  public InternalRow[] call(InternalRow args) {
+    Identifier tableIdent = toIdentifier(args.getString(0), PARAMETERS[0].name());
+
+    String sourceTable = args.getString(1);
+    Format format = parseFormat(sourceTable);
+
+    Map<String, String> partition = Maps.newHashMap();
+    if (!args.isNullAt(2)) {
+      args.getMap(2).foreach(DataTypes.StringType, DataTypes.StringType,
+          (k, v) -> {
+            partition.put(k.toString(), v.toString());
+            return BoxedUnit.UNIT;
+          });
+    }
+
+    Long filesAdded = importToIceberg(tableIdent, sourceTable, format, partition);
+    return new InternalRow[]{newInternalRow(filesAdded)};
+  }
+
+  private Format parseFormat(String source) {

Review comment:
       fair enough, I considered doing this but I wasn't sure if we were ready to go all out with recognizing path based tables this way.




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