Github user ravipesala commented on a diff in the pull request:
https://github.com/apache/incubator-carbondata/pull/251#discussion_r85267495
--- Diff:
processing/src/main/java/org/apache/carbondata/processing/newflow/steps/writer/DataWriterProcessorStepImpl.java
---
@@ -0,0 +1,360 @@
+/*
+ * 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.processing.newflow.steps.writer;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.carbondata.common.logging.LogService;
+import org.apache.carbondata.common.logging.LogServiceFactory;
+import org.apache.carbondata.core.carbon.CarbonTableIdentifier;
+import org.apache.carbondata.core.carbon.datastore.block.SegmentProperties;
+import org.apache.carbondata.core.carbon.metadata.CarbonMetadata;
+import org.apache.carbondata.core.carbon.metadata.schema.table.CarbonTable;
+import
org.apache.carbondata.core.carbon.metadata.schema.table.column.ColumnSchema;
+import org.apache.carbondata.core.carbon.path.CarbonStorePath;
+import org.apache.carbondata.core.carbon.path.CarbonTablePath;
+import org.apache.carbondata.core.constants.CarbonCommonConstants;
+import org.apache.carbondata.core.constants.IgnoreDictionary;
+import org.apache.carbondata.core.keygenerator.KeyGenerator;
+import org.apache.carbondata.core.util.CarbonProperties;
+import org.apache.carbondata.core.util.CarbonTimeStatisticsFactory;
+import org.apache.carbondata.core.util.CarbonUtil;
+import org.apache.carbondata.processing.datatypes.GenericDataType;
+import
org.apache.carbondata.processing.newflow.AbstractDataLoadProcessorStep;
+import
org.apache.carbondata.processing.newflow.CarbonDataLoadConfiguration;
+import org.apache.carbondata.processing.newflow.DataField;
+import
org.apache.carbondata.processing.newflow.constants.DataLoadProcessorConstants;
+import
org.apache.carbondata.processing.newflow.exception.CarbonDataLoadingException;
+import org.apache.carbondata.processing.newflow.row.CarbonRow;
+import org.apache.carbondata.processing.newflow.row.CarbonRowBatch;
+import org.apache.carbondata.processing.store.CarbonDataFileAttributes;
+import org.apache.carbondata.processing.store.CarbonFactDataHandlerModel;
+import org.apache.carbondata.processing.store.CarbonFactHandler;
+import org.apache.carbondata.processing.store.CarbonFactHandlerFactory;
+import
org.apache.carbondata.processing.store.writer.exception.CarbonDataWriterException;
+import org.apache.carbondata.processing.util.CarbonDataProcessorUtil;
+
+/**
+ * It reads data from sorted files which are generated in previous sort
step.
+ * And it writes data to carbondata file. It also generates mdk key while
writing to carbondata file
+ */
+public class DataWriterProcessorStepImpl extends
AbstractDataLoadProcessorStep {
+
+ private static final LogService LOGGER =
+
LogServiceFactory.getLogService(DataWriterProcessorStepImpl.class.getName());
+
+ private String storeLocation;
+
+ private boolean[] isUseInvertedIndex;
+
+ private int[] dimLens;
+
+ private int dimensionCount;
+
+ private List<ColumnSchema> wrapperColumnSchema;
+
+ private int[] colCardinality;
+
+ private SegmentProperties segmentProperties;
+
+ private KeyGenerator keyGenerator;
+
+ private CarbonFactHandler dataHandler;
+
+ private Map<Integer, GenericDataType> complexIndexMap;
+
+ private int noDictionaryCount;
+
+ private int complexDimensionCount;
+
+ private int measureCount;
+
+ private long readCounter;
+
+ private long writeCounter;
+
+ private int measureIndex =
IgnoreDictionary.MEASURES_INDEX_IN_ROW.getIndex();
+
+ private int noDimByteArrayIndex =
IgnoreDictionary.BYTE_ARRAY_INDEX_IN_ROW.getIndex();
+
+ private int dimsArrayIndex =
IgnoreDictionary.DIMENSION_INDEX_IN_ROW.getIndex();
+
+ public DataWriterProcessorStepImpl(CarbonDataLoadConfiguration
configuration,
+ AbstractDataLoadProcessorStep child) {
+ super(configuration, child);
+ }
+
+ @Override public DataField[] getOutput() {
+ return child.getOutput();
+ }
+
+ @Override public void initialize() throws CarbonDataLoadingException {
+ CarbonTableIdentifier tableIdentifier =
+ configuration.getTableIdentifier().getCarbonTableIdentifier();
+
+ storeLocation = CarbonDataProcessorUtil
+ .getLocalDataFolderLocation(tableIdentifier.getDatabaseName(),
+ tableIdentifier.getTableName(),
String.valueOf(configuration.getTaskNo()),
+ configuration.getPartitionId(), configuration.getSegmentId() +
"", false);
+ isUseInvertedIndex =
+
CarbonDataProcessorUtil.getIsUseInvertedIndex(configuration.getDataFields());
+
+ if (!(new File(storeLocation).exists())) {
+ LOGGER.error("Local data load folder location does not exist: " +
storeLocation);
+ return;
+ }
+
+ int[] dimLensWithComplex =
+ (int[])
configuration.getDataLoadProperty(DataLoadProcessorConstants.DIMENSION_LENGTHS);
+ List<Integer> dimsLenList = new ArrayList<Integer>();
+ for (int eachDimLen : dimLensWithComplex) {
+ if (eachDimLen != 0) dimsLenList.add(eachDimLen);
+ }
+ dimLens = new int[dimsLenList.size()];
+ for (int i = 0; i < dimsLenList.size(); i++) {
+ dimLens[i] = dimsLenList.get(i);
+ }
+
+ this.dimensionCount = configuration.getDimensionCount();
+ this.noDictionaryCount = configuration.getNoDictionaryCount();
+ this.complexDimensionCount = configuration.getComplexDimensionCount();
+ this.measureCount = configuration.getMeasureCount();
+
+ int simpleDimsCount = this.dimensionCount - complexDimensionCount;
+ int[] simpleDimsLen = new int[simpleDimsCount];
+ for (int i = 0; i < simpleDimsCount; i++) {
+ simpleDimsLen[i] = dimLens[i];
+ }
+
+ CarbonTable carbonTable = CarbonMetadata.getInstance().getCarbonTable(
+ tableIdentifier.getDatabaseName() +
CarbonCommonConstants.UNDERSCORE + tableIdentifier
+ .getTableName());
+ wrapperColumnSchema = CarbonUtil
+
.getColumnSchemaList(carbonTable.getDimensionByTableName(tableIdentifier.getTableName()),
+
carbonTable.getMeasureByTableName(tableIdentifier.getTableName()));
+ colCardinality =
CarbonUtil.getFormattedCardinality(dimLensWithComplex, wrapperColumnSchema);
+ segmentProperties = new SegmentProperties(wrapperColumnSchema,
colCardinality);
+ // Actual primitive dimension used to generate start & end key
+
+ keyGenerator = segmentProperties.getDimensionKeyGenerator();
+
+ //To Set MDKey Index of each primitive type in complex type
+ int surrIndex = simpleDimsCount;
+ Iterator<Map.Entry<String, GenericDataType>> complexMap =
+
CarbonDataProcessorUtil.getComplexTypesMap(configuration.getDataFields()).entrySet()
+ .iterator();
+ complexIndexMap = new HashMap<Integer,
GenericDataType>(complexDimensionCount);
+ while (complexMap.hasNext()) {
+ Map.Entry<String, GenericDataType> complexDataType =
complexMap.next();
+ complexDataType.getValue().setOutputArrayIndex(0);
+ complexIndexMap.put(simpleDimsCount, complexDataType.getValue());
+ simpleDimsCount++;
+ List<GenericDataType> primitiveTypes = new
ArrayList<GenericDataType>();
+ complexDataType.getValue().getAllPrimitiveChildren(primitiveTypes);
+ for (GenericDataType eachPrimitive : primitiveTypes) {
+ eachPrimitive.setSurrogateIndex(surrIndex++);
+ }
+ }
+ }
+
+ private void initDataHandler() {
--- End diff --
Ok, I will move handlerModel creation to handlerModel itself to keep it
simple.
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