kunal642 commented on a change in pull request #3583: [CARBONDATA-3687] Support 
writing non-transactional carbondata files through hive
URL: https://github.com/apache/carbondata/pull/3583#discussion_r388142780
 
 

 ##########
 File path: 
integration/hive/src/main/java/org/apache/carbondata/hive/util/HiveCarbonUtil.java
 ##########
 @@ -0,0 +1,332 @@
+/*
+ * 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.carbondata.hive.util;
+
+import java.io.File;
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Properties;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.apache.carbondata.common.Strings;
+import org.apache.carbondata.common.logging.LogServiceFactory;
+import org.apache.carbondata.core.constants.CarbonCommonConstants;
+import org.apache.carbondata.core.datastore.compression.CompressorFactory;
+import org.apache.carbondata.core.datastore.filesystem.CarbonFile;
+import org.apache.carbondata.core.datastore.impl.FileFactory;
+import org.apache.carbondata.core.fileoperations.FileWriteOperation;
+import org.apache.carbondata.core.metadata.AbsoluteTableIdentifier;
+import 
org.apache.carbondata.core.metadata.converter.ThriftWrapperSchemaConverterImpl;
+import org.apache.carbondata.core.metadata.datatype.DataType;
+import org.apache.carbondata.core.metadata.datatype.Field;
+import org.apache.carbondata.core.metadata.datatype.StructField;
+import org.apache.carbondata.core.metadata.schema.PartitionInfo;
+import org.apache.carbondata.core.metadata.schema.SchemaEvolution;
+import org.apache.carbondata.core.metadata.schema.SchemaEvolutionEntry;
+import org.apache.carbondata.core.metadata.schema.SchemaReader;
+import org.apache.carbondata.core.metadata.schema.partition.PartitionType;
+import org.apache.carbondata.core.metadata.schema.table.CarbonTable;
+import org.apache.carbondata.core.metadata.schema.table.TableInfo;
+import org.apache.carbondata.core.metadata.schema.table.TableSchema;
+import org.apache.carbondata.core.metadata.schema.table.TableSchemaBuilder;
+import org.apache.carbondata.core.metadata.schema.table.column.ColumnSchema;
+import org.apache.carbondata.core.util.CarbonUtil;
+import org.apache.carbondata.core.util.OutputFilesInfoHolder;
+import org.apache.carbondata.core.util.path.CarbonTablePath;
+import org.apache.carbondata.core.writer.ThriftWriter;
+import 
org.apache.carbondata.processing.loading.constants.DataLoadProcessorConstants;
+import org.apache.carbondata.processing.loading.model.CarbonDataLoadSchema;
+import org.apache.carbondata.processing.loading.model.CarbonLoadModel;
+import org.apache.carbondata.processing.util.TableOptionConstant;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hive.metastore.HiveMetaHook;
+import org.apache.hadoop.hive.metastore.api.FieldSchema;
+import org.apache.hadoop.hive.metastore.api.MetaException;
+import org.apache.hadoop.hive.metastore.api.Table;
+import org.apache.log4j.Logger;
+
+public class HiveCarbonUtil {
+
+  private static final Logger LOGGER =
+      LogServiceFactory.getLogService(HiveCarbonUtil.class.getName());
+
+  public static CarbonLoadModel getCarbonLoadModel(Configuration 
tableProperties) {
+    String[] tableUniqueName = tableProperties.get("name").split("\\.");
+    String databaseName = tableUniqueName[0];
+    String tableName = tableUniqueName[1];
+    String tablePath = tableProperties.get("location");
+    String columns = tableProperties.get("columns");
+    String sortColumns = tableProperties.get("sort_columns");
+    String columnTypes = tableProperties.get("columns.types");
+    String partitionColumns = tableProperties.get("partition_columns");
+    String partitionColumnTypes = 
tableProperties.get("partition_columns.types");
+    if (partitionColumns != null) {
+      columns = columns + "," + partitionColumns;
+      columnTypes = columnTypes + ":" + partitionColumnTypes;
+    }
+    String[] columnTypeArray = splitSchemaStringToArray(columnTypes);
+    String complexDelim = tableProperties.get("complex_delimiter", "");
+    CarbonLoadModel carbonLoadModel =
+        getCarbonLoadModel(tableName, databaseName, tablePath, sortColumns, 
columns.split(","),
+            columnTypeArray, tableProperties);
+    carbonLoadModel.setCarbonTransactionalTable(true);
+    
carbonLoadModel.getCarbonDataLoadSchema().getCarbonTable().setTransactionalTable(true);
+    for (String delim : complexDelim.split(",")) {
+      carbonLoadModel.setComplexDelimiter(delim);
+    }
+    return carbonLoadModel;
+  }
+
+  public static CarbonLoadModel getCarbonLoadModel(Properties tableProperties,
+      Configuration configuration) {
+    String[] tableUniqueName = 
tableProperties.getProperty("name").split("\\.");
+    String databaseName = tableUniqueName[0];
+    String tableName = tableUniqueName[1];
+    String tablePath = tableProperties.getProperty("location");
+    String columns = tableProperties.getProperty("columns");
+    String sortColumns = tableProperties.getProperty("sort_columns");
+    String[] columnTypes = 
splitSchemaStringToArray(tableProperties.getProperty("columns.types"));
+    String complexDelim = tableProperties.getProperty("complex_delimiter", "");
+    CarbonLoadModel carbonLoadModel =
+        getCarbonLoadModel(tableName, databaseName, tablePath, sortColumns, 
columns.split(","),
+            columnTypes, configuration);
+    for (String delim : complexDelim.split(",")) {
+      carbonLoadModel.setComplexDelimiter(delim);
+    }
+    return carbonLoadModel;
+  }
+
+  public static CarbonLoadModel getCarbonLoadModel(String tableName, String 
databaseName,
 
 Review comment:
   done

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