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67.57

/core/src/main/java/org/apache/carbondata/core/util/DataFileFooterConverter.java

/*
 * 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.core.util;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.apache.carbondata.core.datastore.FileReader;
import org.apache.carbondata.core.datastore.block.TableBlockInfo;
import org.apache.carbondata.core.datastore.impl.FileFactory;
import org.apache.carbondata.core.metadata.ColumnarFormatVersion;
import org.apache.carbondata.core.metadata.blocklet.BlockletInfo;
import org.apache.carbondata.core.metadata.blocklet.DataFileFooter;
import org.apache.carbondata.core.metadata.blocklet.datachunk.DataChunk;
import org.apache.carbondata.core.metadata.blocklet.index.BlockletIndex;
import org.apache.carbondata.core.metadata.schema.table.column.ColumnSchema;
import org.apache.carbondata.core.reader.CarbonFooterReader;
import org.apache.carbondata.format.FileFooter;

import org.apache.hadoop.conf.Configuration;

/**
 * Below class will be used to convert the thrift object of data file
 * meta data to wrapper object
 */
public class DataFileFooterConverter extends AbstractDataFileFooterConverter {

  public DataFileFooterConverter(Configuration configuration) {
    super(configuration);
  }

  public DataFileFooterConverter() {
    super(FileFactory.getConfiguration());
  }

  /**
   * Below method will be used to convert thrift file meta to wrapper file meta
   */
  @Override public DataFileFooter readDataFileFooter(TableBlockInfo tableBlockInfo)
      throws IOException {
    DataFileFooter dataFileFooter = new DataFileFooter();
    FileReader fileReader = null;
    try {
      long completeBlockLength = tableBlockInfo.getBlockLength();
      long footerPointer = completeBlockLength - 8;
      fileReader = FileFactory.getFileHolder(FileFactory.getFileType(tableBlockInfo.getFilePath()));
      long actualFooterOffset = fileReader.readLong(tableBlockInfo.getFilePath(), footerPointer);
      CarbonFooterReader reader =
          new CarbonFooterReader(tableBlockInfo.getFilePath(), actualFooterOffset);
      FileFooter footer = reader.readFooter();
      dataFileFooter.setVersionId(ColumnarFormatVersion.valueOf((short) footer.getVersion()));
      dataFileFooter.setNumberOfRows(footer.getNum_rows());
      dataFileFooter.setSegmentInfo(getSegmentInfo(footer.getSegment_info()));
      List<ColumnSchema> columnSchemaList = new ArrayList<ColumnSchema>();
      List<org.apache.carbondata.format.ColumnSchema> table_columns = footer.getTable_columns();
      for (int i = 0; i < table_columns.size(); i++) {
        columnSchemaList.add(thriftColumnSchemaToWrapperColumnSchema(table_columns.get(i)));
      }
      dataFileFooter.setColumnInTable(columnSchemaList);

      List<org.apache.carbondata.format.BlockletIndex> leaf_node_indices_Thrift =
          footer.getBlocklet_index_list();
      List<BlockletIndex> blockletIndexList = new ArrayList<BlockletIndex>();
      for (int i = 0; i < leaf_node_indices_Thrift.size(); i++) {
        BlockletIndex blockletIndex = getBlockletIndex(leaf_node_indices_Thrift.get(i));
        blockletIndexList.add(blockletIndex);
      }

      List<org.apache.carbondata.format.BlockletInfo> leaf_node_infos_Thrift =
          footer.getBlocklet_info_list();
      List<BlockletInfo> blockletInfoList = new ArrayList<BlockletInfo>();
      for (int i = 0; i < leaf_node_infos_Thrift.size(); i++) {
        BlockletInfo blockletInfo = getBlockletInfo(leaf_node_infos_Thrift.get(i));
        blockletInfo.setBlockletIndex(blockletIndexList.get(i));
        blockletInfoList.add(blockletInfo);
      }
      dataFileFooter.setBlockletList(blockletInfoList);
      dataFileFooter.setBlockletIndex(getBlockletIndexForDataFileFooter(blockletIndexList));
    } finally {
      if (null != fileReader) {
        fileReader.finish();
      }
    }
    return dataFileFooter;
  }

  /**
   * Below method is to convert the blocklet info of the thrift to wrapper
   * blocklet info
   *
   * @param blockletInfoThrift blocklet info of the thrift
   * @return blocklet info wrapper
   */
  private BlockletInfo getBlockletInfo(
      org.apache.carbondata.format.BlockletInfo blockletInfoThrift) {
    BlockletInfo blockletInfo = new BlockletInfo();
    List<DataChunk> dimensionColumnChunk = new ArrayList<DataChunk>();
    List<DataChunk> measureChunk = new ArrayList<DataChunk>();
    Iterator<org.apache.carbondata.format.DataChunk> column_data_chunksIterator =
        blockletInfoThrift.getColumn_data_chunksIterator();
    if (null != column_data_chunksIterator) {
      while (column_data_chunksIterator.hasNext()) {
        org.apache.carbondata.format.DataChunk next = column_data_chunksIterator.next();
        if (next.isRowMajor()) {
          dimensionColumnChunk.add(getDataChunk(next, false));
        } else if (next.getEncoders().contains(org.apache.carbondata.format.Encoding.DELTA)) {
          measureChunk.add(getDataChunk(next, true));
        } else {
          dimensionColumnChunk.add(getDataChunk(next, false));
        }
      }
    }
    blockletInfo.setDimensionColumnChunk(dimensionColumnChunk);
    blockletInfo.setMeasureColumnChunk(measureChunk);
    blockletInfo.setNumberOfRows(blockletInfoThrift.getNum_rows());
    return blockletInfo;
  }

  @Override public List<ColumnSchema> getSchema(TableBlockInfo tableBlockInfo) throws IOException {
    FileReader fileReader = null;
    List<ColumnSchema> columnSchemaList = new ArrayList<ColumnSchema>();
    try {
      long completeBlockLength = tableBlockInfo.getBlockLength();
      long footerPointer = completeBlockLength - 8;
      fileReader = FileFactory.getFileHolder(FileFactory.getFileType(tableBlockInfo.getFilePath()));
      long actualFooterOffset = fileReader.readLong(tableBlockInfo.getFilePath(), footerPointer);
      CarbonFooterReader reader =
          new CarbonFooterReader(tableBlockInfo.getFilePath(), actualFooterOffset);
      FileFooter footer = reader.readFooter();
      List<org.apache.carbondata.format.ColumnSchema> table_columns = footer.getTable_columns();
      for (int i = 0; i < table_columns.size(); i++) {
        columnSchemaList.add(thriftColumnSchemaToWrapperColumnSchema(table_columns.get(i)));
      }
    } finally {
      if (null != fileReader) {
        fileReader.finish();
      }
    }
    return columnSchemaList;
  }
}

1	/*
2	* Licensed to the Apache Software Foundation (ASF) under one or more
3	* contributor license agreements. See the NOTICE file distributed with
4	* this work for additional information regarding copyright ownership.
5	* The ASF licenses this file to You under the Apache License, Version 2.0
6	* (the "License"); you may not use this file except in compliance with
7	* the License. You may obtain a copy of the License at
8	*
9	* http://www.apache.org/licenses/LICENSE-2.0
10	*
11	* Unless required by applicable law or agreed to in writing, software
12	* distributed under the License is distributed on an "AS IS" BASIS,
13	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14	* See the License for the specific language governing permissions and
15	* limitations under the License.
16	*/
17	package org.apache.carbondata.core.util;
18
19	import java.io.IOException;
20	import java.util.ArrayList;
21	import java.util.Iterator;
22	import java.util.List;
23
24	import org.apache.carbondata.core.datastore.FileReader;
25	import org.apache.carbondata.core.datastore.block.TableBlockInfo;
26	import org.apache.carbondata.core.datastore.impl.FileFactory;
27	import org.apache.carbondata.core.metadata.ColumnarFormatVersion;
28	import org.apache.carbondata.core.metadata.blocklet.BlockletInfo;
29	import org.apache.carbondata.core.metadata.blocklet.DataFileFooter;
30	import org.apache.carbondata.core.metadata.blocklet.datachunk.DataChunk;
31	import org.apache.carbondata.core.metadata.blocklet.index.BlockletIndex;
32	import org.apache.carbondata.core.metadata.schema.table.column.ColumnSchema;
33	import org.apache.carbondata.core.reader.CarbonFooterReader;
34	import org.apache.carbondata.format.FileFooter;
35
36	import org.apache.hadoop.conf.Configuration;
37
38	/**
39	* Below class will be used to convert the thrift object of data file
40	* meta data to wrapper object
41	*/
42	public class DataFileFooterConverter extends AbstractDataFileFooterConverter {
43
44	public DataFileFooterConverter(Configuration configuration) {
45	super(configuration);	1✔
46	}	1✔
47
48	public DataFileFooterConverter() {
49	super(FileFactory.getConfiguration());	2✔
50	}	2✔
51
52	/**
53	* Below method will be used to convert thrift file meta to wrapper file meta
54	*/
55	@Override public DataFileFooter readDataFileFooter(TableBlockInfo tableBlockInfo)
56	throws IOException {
57	DataFileFooter dataFileFooter = new DataFileFooter();	2✔
58	FileReader fileReader = null;	2✔
59	try {
60	long completeBlockLength = tableBlockInfo.getBlockLength();	2✔
61	long footerPointer = completeBlockLength - 8;	2✔
62	fileReader = FileFactory.getFileHolder(FileFactory.getFileType(tableBlockInfo.getFilePath()));	2✔
63	long actualFooterOffset = fileReader.readLong(tableBlockInfo.getFilePath(), footerPointer);	2✔
64	CarbonFooterReader reader =	2✔
65	new CarbonFooterReader(tableBlockInfo.getFilePath(), actualFooterOffset);	2✔
66	FileFooter footer = reader.readFooter();	2✔
67	dataFileFooter.setVersionId(ColumnarFormatVersion.valueOf((short) footer.getVersion()));	2✔
68	dataFileFooter.setNumberOfRows(footer.getNum_rows());	2✔
69	dataFileFooter.setSegmentInfo(getSegmentInfo(footer.getSegment_info()));	2✔
70	List<ColumnSchema> columnSchemaList = new ArrayList<ColumnSchema>();	2✔
71	List<org.apache.carbondata.format.ColumnSchema> table_columns = footer.getTable_columns();	2✔
72	for (int i = 0; i < table_columns.size(); i++) {	2✔
73	columnSchemaList.add(thriftColumnSchemaToWrapperColumnSchema(table_columns.get(i)));	2✔
74	}
75	dataFileFooter.setColumnInTable(columnSchemaList);	2✔
76
77	List<org.apache.carbondata.format.BlockletIndex> leaf_node_indices_Thrift =	2✔
78	footer.getBlocklet_index_list();	2✔
79	List<BlockletIndex> blockletIndexList = new ArrayList<BlockletIndex>();	2✔
80	for (int i = 0; i < leaf_node_indices_Thrift.size(); i++) {	2✔
81	BlockletIndex blockletIndex = getBlockletIndex(leaf_node_indices_Thrift.get(i));	2✔
82	blockletIndexList.add(blockletIndex);	2✔
83	}
84
85	List<org.apache.carbondata.format.BlockletInfo> leaf_node_infos_Thrift =	2✔
86	footer.getBlocklet_info_list();	2✔
87	List<BlockletInfo> blockletInfoList = new ArrayList<BlockletInfo>();	2✔
88	for (int i = 0; i < leaf_node_infos_Thrift.size(); i++) {	2✔
89	BlockletInfo blockletInfo = getBlockletInfo(leaf_node_infos_Thrift.get(i));	2✔
90	blockletInfo.setBlockletIndex(blockletIndexList.get(i));	2✔
91	blockletInfoList.add(blockletInfo);	2✔
92	}
93	dataFileFooter.setBlockletList(blockletInfoList);	2✔
94	dataFileFooter.setBlockletIndex(getBlockletIndexForDataFileFooter(blockletIndexList));	2✔
95	} finally {
96	if (null != fileReader) {	2✔
97	fileReader.finish();	2✔
98	}
99	}	2✔
100	return dataFileFooter;	2✔
101	}
102
103	/**
104	* Below method is to convert the blocklet info of the thrift to wrapper
105	* blocklet info
106	*
107	* @param blockletInfoThrift blocklet info of the thrift
108	* @return blocklet info wrapper
109	*/
110	private BlockletInfo getBlockletInfo(
111	org.apache.carbondata.format.BlockletInfo blockletInfoThrift) {
112	BlockletInfo blockletInfo = new BlockletInfo();	2✔
113	List<DataChunk> dimensionColumnChunk = new ArrayList<DataChunk>();	2✔
114	List<DataChunk> measureChunk = new ArrayList<DataChunk>();	2✔
115	Iterator<org.apache.carbondata.format.DataChunk> column_data_chunksIterator =	2✔
116	blockletInfoThrift.getColumn_data_chunksIterator();	2✔
117	if (null != column_data_chunksIterator) {	2✔
118	while (column_data_chunksIterator.hasNext()) {	×
119	org.apache.carbondata.format.DataChunk next = column_data_chunksIterator.next();	×
120	if (next.isRowMajor()) {	×
121	dimensionColumnChunk.add(getDataChunk(next, false));	×
122	} else if (next.getEncoders().contains(org.apache.carbondata.format.Encoding.DELTA)) {	×
123	measureChunk.add(getDataChunk(next, true));	×
124	} else {
125	dimensionColumnChunk.add(getDataChunk(next, false));	×
126	}
127	}	×
128	}
129	blockletInfo.setDimensionColumnChunk(dimensionColumnChunk);	2✔
130	blockletInfo.setMeasureColumnChunk(measureChunk);	2✔
131	blockletInfo.setNumberOfRows(blockletInfoThrift.getNum_rows());	2✔
132	return blockletInfo;	2✔
133	}
134
135	@Override public List<ColumnSchema> getSchema(TableBlockInfo tableBlockInfo) throws IOException {
136	FileReader fileReader = null;	×
137	List<ColumnSchema> columnSchemaList = new ArrayList<ColumnSchema>();	×
138	try {
139	long completeBlockLength = tableBlockInfo.getBlockLength();	×
140	long footerPointer = completeBlockLength - 8;	×
141	fileReader = FileFactory.getFileHolder(FileFactory.getFileType(tableBlockInfo.getFilePath()));	×
142	long actualFooterOffset = fileReader.readLong(tableBlockInfo.getFilePath(), footerPointer);	×
143	CarbonFooterReader reader =	×
144	new CarbonFooterReader(tableBlockInfo.getFilePath(), actualFooterOffset);	×
145	FileFooter footer = reader.readFooter();	×
146	List<org.apache.carbondata.format.ColumnSchema> table_columns = footer.getTable_columns();	×
147	for (int i = 0; i < table_columns.size(); i++) {	×
148	columnSchemaList.add(thriftColumnSchemaToWrapperColumnSchema(table_columns.get(i)));	×
149	}
150	} finally {
151	if (null != fileReader) {	×
152	fileReader.finish();	×
153	}
154	}	×
155	return columnSchemaList;	×
156	}
157	}

apache / carbondata / 3054

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