6692

Build # 6692

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88.89

/core/src/main/java/org/apache/carbondata/core/readcommitter/LatestFilesReadCommittedScope.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.readcommitter;

import java.io.IOException;
import java.util.*;

import org.apache.carbondata.common.annotations.InterfaceAudience;
import org.apache.carbondata.common.annotations.InterfaceStability;
import org.apache.carbondata.core.datamap.Segment;
import org.apache.carbondata.core.datastore.filesystem.CarbonFile;
import org.apache.carbondata.core.datastore.impl.FileFactory;
import org.apache.carbondata.core.indexstore.blockletindex.SegmentIndexFileStore;
import org.apache.carbondata.core.mutate.UpdateVO;
import org.apache.carbondata.core.statusmanager.LoadMetadataDetails;
import org.apache.carbondata.core.statusmanager.SegmentRefreshInfo;
import org.apache.carbondata.core.statusmanager.SegmentStatus;
import org.apache.carbondata.core.util.path.CarbonTablePath;

/**
 * This is a readCommittedScope for non transactional carbon table
 */
@InterfaceAudience.Internal
@InterfaceStability.Stable
public class LatestFilesReadCommittedScope implements ReadCommittedScope {

  private String carbonFilePath;
  private String segmentId;
  private ReadCommittedIndexFileSnapShot readCommittedIndexFileSnapShot;
  private LoadMetadataDetails[] loadMetadataDetails;

  /**
   * a new constructor of this class
   *
   * @param path      carbon file path
   * @param segmentId segment id
   */
  public LatestFilesReadCommittedScope(String path, String segmentId) {
    Objects.requireNonNull(path);
    this.carbonFilePath = path;
    this.segmentId = segmentId;
    try {
      takeCarbonIndexFileSnapShot();
    } catch (IOException ex) {
      throw new RuntimeException("Error while taking index snapshot", ex);
    }
  }

  /**
   * a new constructor with path
   *
   * @param path carbon file path
   */
  public LatestFilesReadCommittedScope(String path) {
    this(path, null);
  }

  private void prepareLoadMetadata() {
    int loadCount = 0;
    Map<String, List<String>> snapshotMap =
        this.readCommittedIndexFileSnapShot.getSegmentIndexFileMap();
    LoadMetadataDetails[] loadMetadataDetailsArray = new LoadMetadataDetails[snapshotMap.size()];
    String segmentID;
    for (Map.Entry<String, List<String>> entry : snapshotMap.entrySet()) {
      segmentID = entry.getKey();
      LoadMetadataDetails loadMetadataDetails = new LoadMetadataDetails();
      long timeSet;
      try {
        timeSet = Long.parseLong(segmentID);
      } catch (NumberFormatException nu) {
        timeSet = 0;
      }
      loadMetadataDetails.setLoadEndTime(timeSet);
      loadMetadataDetails.setLoadStartTime(timeSet);
      loadMetadataDetails.setSegmentStatus(SegmentStatus.SUCCESS);
      loadMetadataDetails.setLoadName(segmentID);
      loadMetadataDetailsArray[loadCount++] = loadMetadataDetails;
    }
    this.loadMetadataDetails = loadMetadataDetailsArray;
  }

  @Override public LoadMetadataDetails[] getSegmentList() throws IOException {
    try {
      if (loadMetadataDetails == null) {
        takeCarbonIndexFileSnapShot();
      }
      return loadMetadataDetails;

    } catch (IOException ex) {
      throw new IOException("Problem encountered while reading the Table Status file.", ex);
    }
  }

  @Override public Map<String, String> getCommittedIndexFile(Segment segment) throws IOException {
    Map<String, String> indexFileStore = new HashMap<>();
    Map<String, List<String>> snapShot = readCommittedIndexFileSnapShot.getSegmentIndexFileMap();
    String segName;
    if (segment.getSegmentNo() != null) {
      segName = segment.getSegmentNo();
    } else {
      segName = segment.getSegmentFileName();
    }
    List<String> index = snapShot.get(segName);
    if (null == index) {
      index = new LinkedList<>();
    }
    for (String indexPath : index) {
      indexFileStore.put(indexPath, null);
    }
    return indexFileStore;
  }

  @Override public SegmentRefreshInfo getCommittedSegmentRefreshInfo(
      Segment segment, UpdateVO updateVo) throws IOException {
    Map<String, SegmentRefreshInfo> snapShot =
        readCommittedIndexFileSnapShot.getSegmentTimestampUpdaterMap();
    String segName;
    if (segment.getSegmentNo() != null) {
      segName = segment.getSegmentNo();
    } else {
      segName = segment.getSegmentFileName();
    }
    SegmentRefreshInfo segmentRefreshInfo = snapShot.get(segName);
    return segmentRefreshInfo;
  }

  private String getSegmentID(String carbonIndexFileName, String indexFilePath) {
    if (indexFilePath.contains("/Fact/Part0/Segment_")) {
      // This is CarbonFile case where the Index files are present inside the Segment Folder
      // So the Segment has to be extracted from the path not from the CarbonIndex file.
      String segString = indexFilePath.substring(0, indexFilePath.lastIndexOf("/") + 1);
      String segName = segString
          .substring(segString.lastIndexOf("_") + 1, segString.lastIndexOf("/"));
      return segName;
    } else {
      String fileName = carbonIndexFileName;
      String segId = fileName.substring(fileName.lastIndexOf("-") + 1, fileName.lastIndexOf("."));
      return segId;
    }
  }

  @Override public void takeCarbonIndexFileSnapShot() throws IOException {
    // Read the current file Path get the list of indexes from the path.
    CarbonFile file = FileFactory.getCarbonFile(carbonFilePath);
    Map<String, List<String>> indexFileStore = new HashMap<>();
    Map<String, SegmentRefreshInfo> segmentTimestampUpdaterMap = new HashMap<>();
    CarbonFile[] carbonIndexFiles = null;
    if (file.isDirectory()) {
      if (segmentId == null) {
        carbonIndexFiles = SegmentIndexFileStore.getCarbonIndexFiles(file);
      } else {
        String segmentPath = CarbonTablePath.getSegmentPath(carbonFilePath, segmentId);
        carbonIndexFiles = SegmentIndexFileStore.getCarbonIndexFiles(segmentPath);
      }
      if (carbonIndexFiles.length == 0) {
        throw new IOException(
            "No Index files are present in the table location :" + carbonFilePath);
      }
      for (int i = 0; i < carbonIndexFiles.length; i++) {
        // TODO. If Required to support merge index, then this code has to be modified.
        // TODO. Nested File Paths.
        if (carbonIndexFiles[i].getName().endsWith(CarbonTablePath.INDEX_FILE_EXT)) {
          // Get Segment Name from the IndexFile.
          String indexFilePath =
              FileFactory.getUpdatedFilePath(carbonIndexFiles[i].getAbsolutePath());
          String segId =
              getSegmentID(carbonIndexFiles[i].getName(), indexFilePath);
          // TODO. During Partition table handling, place Segment File Name.
          List<String> indexList;
          SegmentRefreshInfo segmentRefreshInfo;
          if (indexFileStore.get(segId) == null) {
            indexList = new ArrayList<>(1);
            segmentRefreshInfo =
                new SegmentRefreshInfo(carbonIndexFiles[i].getLastModifiedTime(), 0);
            segmentTimestampUpdaterMap.put(segId, segmentRefreshInfo);
          } else {
            // Entry is already present.
            indexList = indexFileStore.get(segId);
            segmentRefreshInfo = segmentTimestampUpdaterMap.get(segId);
          }
          indexList.add(indexFilePath);
          if (segmentRefreshInfo.getSegmentUpdatedTimestamp() < carbonIndexFiles[i]
              .getLastModifiedTime()) {
            segmentRefreshInfo
                .setSegmentUpdatedTimestamp(carbonIndexFiles[i].getLastModifiedTime());
          }
          indexFileStore.put(segId, indexList);
          segmentRefreshInfo.setCountOfFileInSegment(indexList.size());
        }
      }
      ReadCommittedIndexFileSnapShot readCommittedIndexFileSnapShot =
          new ReadCommittedIndexFileSnapShot(indexFileStore, segmentTimestampUpdaterMap);
      this.readCommittedIndexFileSnapShot = readCommittedIndexFileSnapShot;
      prepareLoadMetadata();
    } else {
      throw new IOException("Path is not pointing to directory");
    }
  }

}

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.readcommitter;
18
19	import java.io.IOException;
20	import java.util.*;
21
22	import org.apache.carbondata.common.annotations.InterfaceAudience;
23	import org.apache.carbondata.common.annotations.InterfaceStability;
24	import org.apache.carbondata.core.datamap.Segment;
25	import org.apache.carbondata.core.datastore.filesystem.CarbonFile;
26	import org.apache.carbondata.core.datastore.impl.FileFactory;
27	import org.apache.carbondata.core.indexstore.blockletindex.SegmentIndexFileStore;
28	import org.apache.carbondata.core.mutate.UpdateVO;
29	import org.apache.carbondata.core.statusmanager.LoadMetadataDetails;
30	import org.apache.carbondata.core.statusmanager.SegmentRefreshInfo;
31	import org.apache.carbondata.core.statusmanager.SegmentStatus;
32	import org.apache.carbondata.core.util.path.CarbonTablePath;
33
34	/**
35	* This is a readCommittedScope for non transactional carbon table
36	*/
37	@InterfaceAudience.Internal
38	@InterfaceStability.Stable
39	public class LatestFilesReadCommittedScope implements ReadCommittedScope {
40
41	private String carbonFilePath;
42	private String segmentId;
43	private ReadCommittedIndexFileSnapShot readCommittedIndexFileSnapShot;
44	private LoadMetadataDetails[] loadMetadataDetails;
45
46	/**
47	* a new constructor of this class
48	*
49	* @param path carbon file path
50	* @param segmentId segment id
51	*/
52	public LatestFilesReadCommittedScope(String path, String segmentId) {	1✔
53	Objects.requireNonNull(path);	1✔
54	this.carbonFilePath = path;	1✔
55	this.segmentId = segmentId;	1✔
56	try {
57	takeCarbonIndexFileSnapShot();	1✔
58	} catch (IOException ex) {	1✔
59	throw new RuntimeException("Error while taking index snapshot", ex);	1✔
60	}	1✔
61	}	1✔
62
63	/**
64	* a new constructor with path
65	*
66	* @param path carbon file path
67	*/
68	public LatestFilesReadCommittedScope(String path) {
69	this(path, null);	1✔
70	}	1✔
71
72	private void prepareLoadMetadata() {
73	int loadCount = 0;	1✔
74	Map<String, List<String>> snapshotMap =	1✔
75	this.readCommittedIndexFileSnapShot.getSegmentIndexFileMap();	1✔
76	LoadMetadataDetails[] loadMetadataDetailsArray = new LoadMetadataDetails[snapshotMap.size()];	1✔
77	String segmentID;
78	for (Map.Entry<String, List<String>> entry : snapshotMap.entrySet()) {	1✔
79	segmentID = entry.getKey();	1✔
80	LoadMetadataDetails loadMetadataDetails = new LoadMetadataDetails();	1✔
81	long timeSet;
82	try {
83	timeSet = Long.parseLong(segmentID);	1✔
84	} catch (NumberFormatException nu) {	1✔
85	timeSet = 0;	1✔
86	}	1✔
87	loadMetadataDetails.setLoadEndTime(timeSet);	1✔
88	loadMetadataDetails.setLoadStartTime(timeSet);	1✔
89	loadMetadataDetails.setSegmentStatus(SegmentStatus.SUCCESS);	1✔
90	loadMetadataDetails.setLoadName(segmentID);	1✔
91	loadMetadataDetailsArray[loadCount++] = loadMetadataDetails;	1✔
92	}	1✔
93	this.loadMetadataDetails = loadMetadataDetailsArray;	1✔
94	}	1✔
95
96	@Override public LoadMetadataDetails[] getSegmentList() throws IOException {
97	try {
98	if (loadMetadataDetails == null) {	1✔
99	takeCarbonIndexFileSnapShot();	×
100	}
101	return loadMetadataDetails;	1✔
102
103	} catch (IOException ex) {	×
104	throw new IOException("Problem encountered while reading the Table Status file.", ex);	×
105	}
106	}
107
108	@Override public Map<String, String> getCommittedIndexFile(Segment segment) throws IOException {
109	Map<String, String> indexFileStore = new HashMap<>();	1✔
110	Map<String, List<String>> snapShot = readCommittedIndexFileSnapShot.getSegmentIndexFileMap();	1✔
111	String segName;
112	if (segment.getSegmentNo() != null) {	1✔
113	segName = segment.getSegmentNo();	1✔
114	} else {
115	segName = segment.getSegmentFileName();	×
116	}
117	List<String> index = snapShot.get(segName);	1✔
118	if (null == index) {	1✔
119	index = new LinkedList<>();	×
120	}
121	for (String indexPath : index) {	1✔
122	indexFileStore.put(indexPath, null);	1✔
123	}	1✔
124	return indexFileStore;	1✔
125	}
126
127	@Override public SegmentRefreshInfo getCommittedSegmentRefreshInfo(
128	Segment segment, UpdateVO updateVo) throws IOException {
129	Map<String, SegmentRefreshInfo> snapShot =	1✔
130	readCommittedIndexFileSnapShot.getSegmentTimestampUpdaterMap();	1✔
131	String segName;
132	if (segment.getSegmentNo() != null) {	1✔
133	segName = segment.getSegmentNo();	1✔
134	} else {
135	segName = segment.getSegmentFileName();	×
136	}
137	SegmentRefreshInfo segmentRefreshInfo = snapShot.get(segName);	1✔
138	return segmentRefreshInfo;	1✔
139	}
140
141	private String getSegmentID(String carbonIndexFileName, String indexFilePath) {
142	if (indexFilePath.contains("/Fact/Part0/Segment_")) {	1✔
143	// This is CarbonFile case where the Index files are present inside the Segment Folder
144	// So the Segment has to be extracted from the path not from the CarbonIndex file.
145	String segString = indexFilePath.substring(0, indexFilePath.lastIndexOf("/") + 1);	1✔
146	String segName = segString	1✔
147	.substring(segString.lastIndexOf("_") + 1, segString.lastIndexOf("/"));	1✔
148	return segName;	1✔
149	} else {
150	String fileName = carbonIndexFileName;	1✔
151	String segId = fileName.substring(fileName.lastIndexOf("-") + 1, fileName.lastIndexOf("."));	1✔
152	return segId;	1✔
153	}
154	}
155
156	@Override public void takeCarbonIndexFileSnapShot() throws IOException {
157	// Read the current file Path get the list of indexes from the path.
158	CarbonFile file = FileFactory.getCarbonFile(carbonFilePath);	1✔
159	Map<String, List<String>> indexFileStore = new HashMap<>();	1✔
160	Map<String, SegmentRefreshInfo> segmentTimestampUpdaterMap = new HashMap<>();	1✔
161	CarbonFile[] carbonIndexFiles = null;	1✔
162	if (file.isDirectory()) {	1✔
163	if (segmentId == null) {	1✔
164	carbonIndexFiles = SegmentIndexFileStore.getCarbonIndexFiles(file);	1✔
165	} else {
166	String segmentPath = CarbonTablePath.getSegmentPath(carbonFilePath, segmentId);	×
167	carbonIndexFiles = SegmentIndexFileStore.getCarbonIndexFiles(segmentPath);	×
168	}
169	if (carbonIndexFiles.length == 0) {	1✔
170	throw new IOException(	1✔
171	"No Index files are present in the table location :" + carbonFilePath);
172	}
173	for (int i = 0; i < carbonIndexFiles.length; i++) {	1✔
174	// TODO. If Required to support merge index, then this code has to be modified.
175	// TODO. Nested File Paths.
176	if (carbonIndexFiles[i].getName().endsWith(CarbonTablePath.INDEX_FILE_EXT)) {	1✔
177	// Get Segment Name from the IndexFile.
178	String indexFilePath =	1✔
179	FileFactory.getUpdatedFilePath(carbonIndexFiles[i].getAbsolutePath());	1✔
180	String segId =	1✔
181	getSegmentID(carbonIndexFiles[i].getName(), indexFilePath);	1✔
182	// TODO. During Partition table handling, place Segment File Name.
183	List<String> indexList;
184	SegmentRefreshInfo segmentRefreshInfo;
185	if (indexFileStore.get(segId) == null) {	1✔
186	indexList = new ArrayList<>(1);	1✔
187	segmentRefreshInfo =	1✔
188	new SegmentRefreshInfo(carbonIndexFiles[i].getLastModifiedTime(), 0);	1✔
189	segmentTimestampUpdaterMap.put(segId, segmentRefreshInfo);	1✔
190	} else {
191	// Entry is already present.
192	indexList = indexFileStore.get(segId);	1✔
193	segmentRefreshInfo = segmentTimestampUpdaterMap.get(segId);	1✔
194	}
195	indexList.add(indexFilePath);	1✔
196	if (segmentRefreshInfo.getSegmentUpdatedTimestamp() < carbonIndexFiles[i]	1✔
197	.getLastModifiedTime()) {	1✔
198	segmentRefreshInfo	×
199	.setSegmentUpdatedTimestamp(carbonIndexFiles[i].getLastModifiedTime());	×
200	}
201	indexFileStore.put(segId, indexList);	1✔
202	segmentRefreshInfo.setCountOfFileInSegment(indexList.size());	1✔
203	}
204	}
205	ReadCommittedIndexFileSnapShot readCommittedIndexFileSnapShot =	1✔
206	new ReadCommittedIndexFileSnapShot(indexFileStore, segmentTimestampUpdaterMap);
207	this.readCommittedIndexFileSnapShot = readCommittedIndexFileSnapShot;	1✔
208	prepareLoadMetadata();	1✔
209	} else {	1✔
210	throw new IOException("Path is not pointing to directory");	×
211	}
212	}	1✔
213
214	}

apache / carbondata / 6692

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