Package org.apache.accumulo.core.data

Examples of org.apache.accumulo.core.data.Range

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  public OfflineScanner(Instance instance, TCredentials credentials, String tableId, Authorizations authorizations) {
    ArgumentChecker.notNull(instance, credentials, tableId, authorizations);
    this.instance = instance;
    this.credentials = credentials;
    this.tableId = new Text(tableId);
    this.range = new Range((Key) null, (Key) null);
   
    this.authorizations = authorizations;
   
    this.batchSize = Constants.SCAN_BATCH_SIZE;
    this.timeOut = Integer.MAX_VALUE;
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    Map<String,Map<KeyExtent,List<Range>>> binnedRanges2 = new HashMap<String,Map<KeyExtent,List<Range>>>();
    for (Entry<String,Map<KeyExtent,List<Range>>> entry : binnedRanges.entrySet()) {
      Map<KeyExtent,List<Range>> tabletMap = new HashMap<KeyExtent,List<Range>>();
      binnedRanges2.put(entry.getKey(), tabletMap);
      for (Entry<KeyExtent,List<Range>> tabletRanges : entry.getValue().entrySet()) {
        Range tabletRange = tabletRanges.getKey().toDataRange();
        List<Range> clippedRanges = new ArrayList<Range>();
        tabletMap.put(tabletRanges.getKey(), clippedRanges);
        for (Range range : tabletRanges.getValue())
          clippedRanges.add(tabletRange.clip(range));
      }
    }
   
    binnedRanges.clear();
    binnedRanges.putAll(binnedRanges2);
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      KeyExtent ke = new KeyExtent(scanResult.partScan);
      Key nextKey = new Key(scanResult.partNextKey);
     
      ListIterator<Range> iterator = unscanned.get(ke).listIterator();
      while (iterator.hasNext()) {
        Range range = iterator.next();
       
        if (range.afterEndKey(nextKey) || (nextKey.equals(range.getEndKey()) && scanResult.partNextKeyInclusive != range.isEndKeyInclusive())) {
          iterator.remove();
        } else if (range.contains(nextKey)) {
          iterator.remove();
          Range partRange = new Range(nextKey, scanResult.partNextKeyInclusive, range.getEndKey(), range.isEndKeyInclusive());
          iterator.add(partRange);
        }
      }
    }
  }
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    // copy requested to unscanned map. we will remove ranges as they are scanned in trackScanning()
    for (Entry<KeyExtent,List<Range>> entry : requested.entrySet()) {
      ArrayList<Range> ranges = new ArrayList<Range>();
      for (Range range : entry.getValue()) {
        ranges.add(new Range(range));
      }
      unscanned.put(new KeyExtent(entry.getKey()), ranges);
    }
   
    timeoutTracker.startingScan();
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      iter.printInfo();
      System.out.println();
      org.apache.accumulo.core.file.rfile.bcfile.PrintInfo.main(new String[] {arg});
     
      if (opts.histogram || opts.dump) {
        iter.seek(new Range((Key) null, (Key) null), new ArrayList<ByteSequence>(), false);
        while (iter.hasTop()) {
          Key key = iter.getTopKey();
          Value value = iter.getTopValue();
          if (opts.dump)
            System.out.println(key + " -> " + value);
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        && val.equals(SUPPRESS_ROW_VALUE);
  }
 
  private void reseek(Key key) throws IOException {
    if (range.afterEndKey(key)) {
      range = new Range(range.getEndKey(), true, range.getEndKey(), range.isEndKeyInclusive());
      source.seek(range, columnFamilies, inclusive);
    } else {
      range = new Range(key, true, range.getEndKey(), range.isEndKeyInclusive());
      source.seek(range, columnFamilies, inclusive);
    }
  }
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    this.columnFamilies = columnFamilies;
    this.inclusive = inclusive;
   
    if (range.getStartKey() != null) {
      // seek to beginning of row to see if there is a suppression marker
      Range newRange = new Range(new Key(range.getStartKey().getRow()), true, range.getEndKey(), range.isEndKeyInclusive());
      source.seek(newRange, columnFamilies, inclusive);
     
      readNextRow();
     
      // it is possible that all or some of the data read for the current
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    CachableBlockFile.Reader _cbr = new CachableBlockFile.Reader(fs, path, conf, dataCache, indexCache);
    Reader iter = new RFile.Reader(_cbr);
   
    if (seekToBeginning) {
      iter.seek(new Range((Key) null, null), EMPTY_CF_SET, false);
    }
   
    return iter;
  }
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  }
 
  @Override
  public void seek(Range range, Collection<ByteSequence> columnFamilies, boolean inclusive) throws IOException {
    // do not want to seek to the middle of a row
    Range seekRange = IteratorUtil.maximizeStartKeyTimeStamp(range);
    this.range = seekRange;
    this.columnFamilies = columnFamilies;
    this.inclusive = inclusive;
   
    super.seek(seekRange, columnFamilies, inclusive);
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  protected void reseek(Key key) throws IOException {
    if (key == null)
      return;
    if (range.afterEndKey(key)) {
      range = new Range(range.getEndKey(), true, range.getEndKey(), range.isEndKeyInclusive());
      getSource().seek(range, columnFamilies, inclusive);
    } else {
      range = new Range(key, true, range.getEndKey(), range.isEndKeyInclusive());
      getSource().seek(range, columnFamilies, inclusive);
    }
  }
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Related Classes of org.apache.accumulo.core.data.Range

  • org.apache.accumulo.core.client.admin.FindMax
  • org.apache.accumulo.core.client.impl.OfflineIterator
  • org.apache.accumulo.core.client.impl.OfflineScanner
  • org.apache.accumulo.core.client.impl.TabletLocatorImplTest
  • org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator
  • org.apache.accumulo.core.client.impl.ThriftScanner
  • org.apache.accumulo.core.client.mapred.InputFormatBase
  • org.apache.accumulo.core.client.mapred.RangeInputSplitTest
  • org.apache.accumulo.core.client.mapreduce.AccumuloInputFormat
  • org.apache.accumulo.core.client.mapreduce.InputFormatBase
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