Package org.apache.accumulo.core.iterators

Examples of org.apache.accumulo.core.iterators.SourceSwitchingIterator


    }
   
    ScanDataSource dataSource = new ScanDataSource(authorizations, this.defaultSecurityLabel, columns, ssiList, ssio, interruptFlag);
   
    try {
      SortedKeyValueIterator<Key,Value> iter = new SourceSwitchingIterator(dataSource);
      return lookup(iter, ranges, columns, results, maxResultSize);
    } catch (IOException ioe) {
      dataSource.close(true);
      throw ioe;
    } finally {
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        SortedKeyValueIterator<Key,Value> iter;
       
        if (options.isolated) {
          if (isolatedIter == null)
            isolatedIter = new SourceSwitchingIterator(dataSource, true);
          else
            isolatedDataSource.fileManager.reattach();
          iter = isolatedIter;
        } else {
          iter = new SourceSwitchingIterator(dataSource, false);
        }
       
        results = nextBatch(iter, range, options.num, options.columnSet);
       
        if (results.results == null) {
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    }
   
    ScanDataSource dataSource = new ScanDataSource(authorizations, this.defaultSecurityLabel, columns, ssiList, ssio, interruptFlag);
   
    try {
      SortedKeyValueIterator<Key,Value> iter = new SourceSwitchingIterator(dataSource);
      return lookup(iter, ranges, columns, results, maxResultSize);
    } catch (IOException ioe) {
      dataSource.close(true);
      throw ioe;
    } finally {
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        SortedKeyValueIterator<Key,Value> iter;
       
        if (options.isolated) {
          if (isolatedIter == null)
            isolatedIter = new SourceSwitchingIterator(dataSource, true);
          else
            isolatedDataSource.fileManager.reattach();
          iter = isolatedIter;
        } else {
          iter = new SourceSwitchingIterator(dataSource, false);
        }
       
        results = nextBatch(iter, range, options.num, options.columnSet);
       
        if (results.results == null) {
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    if (deleted)
      throw new IllegalStateException("Can not obtain iterator after map deleted");
   
    int mc = mutationCount.get();
    MemoryDataSource mds = new MemoryDataSource();
    SourceSwitchingIterator ssi = new SourceSwitchingIterator(new MemoryDataSource());
    MemoryIterator mi = new MemoryIterator(new ColumnFamilySkippingIterator(new PartialMutationSkippingIterator(ssi, mc)));
    mi.setSSI(ssi);
    mi.setMDS(mds);
    activeIters.add(mi);
    return mi;
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      for (FileSKVIterator reader : newlyReservedReaders) {
        String filename = getReservedReadeFilename(reader);
        if (detachable) {
          FileDataSource fds = new FileDataSource(filename, reader);
          dataSources.add(fds);
          SourceSwitchingIterator ssi = new SourceSwitchingIterator(fds);
          iters.add(new ProblemReportingIterator(tablet.getTableId().toString(), filename, continueOnFailure, ssi));
        } else {
          iters.add(new ProblemReportingIterator(tablet.getTableId().toString(), filename, continueOnFailure, reader));
        }
      }
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    put(tm1, "r1", "cf1", "cq3", 5, "v2");
    put(tm1, "r2", "cf1", "cq1", 5, "v3");
   
    SortedMapIterator smi = new SortedMapIterator(tm1);
    TestDataSource tds = new TestDataSource(smi);
    SourceSwitchingIterator ssi = new SourceSwitchingIterator(tds);
   
    ssi.seek(new Range(), new ArrayList<ByteSequence>(), false);
    ane(ssi, "r1", "cf1", "cq1", 5, "v1", true);
    ane(ssi, "r1", "cf1", "cq3", 5, "v2", true);
    ane(ssi, "r2", "cf1", "cq1", 5, "v3", true);
    assertFalse(ssi.hasTop());
  }
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    put(tm1, "r1", "cf1", "cq3", 5, "v2");
    put(tm1, "r2", "cf1", "cq1", 5, "v3");
   
    SortedMapIterator smi = new SortedMapIterator(tm1);
    TestDataSource tds = new TestDataSource(smi);
    SourceSwitchingIterator ssi = new SourceSwitchingIterator(tds);
   
    ssi.seek(new Range(), new ArrayList<ByteSequence>(), false);
    ane(ssi, "r1", "cf1", "cq1", 5, "v1", true);
   
    TreeMap<Key,Value> tm2 = new TreeMap<Key,Value>();
    put(tm2, "r1", "cf1", "cq1", 5, "v4");
    put(tm2, "r1", "cf1", "cq3", 5, "v5");
    put(tm2, "r2", "cf1", "cq1", 5, "v6");
   
    SortedMapIterator smi2 = new SortedMapIterator(tm2);
    TestDataSource tds2 = new TestDataSource(smi2);
    tds.next = tds2;
   
    ane(ssi, "r1", "cf1", "cq3", 5, "v2", true);
    ane(ssi, "r2", "cf1", "cq1", 5, "v6", true);
    assertFalse(ssi.hasTop());
  }
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    put(tm1, "r3", "cf1", "cq1", 5, "v5");
    put(tm1, "r3", "cf1", "cq2", 5, "v6");
   
    SortedMapIterator smi = new SortedMapIterator(tm1);
    TestDataSource tds = new TestDataSource(smi);
    SourceSwitchingIterator ssi = new SourceSwitchingIterator(tds, true);
   
    ssi.seek(new Range(), new ArrayList<ByteSequence>(), false);
    ane(ssi, "r1", "cf1", "cq1", 5, "v1", true);
   
    TreeMap<Key,Value> tm2 = new TreeMap<Key,Value>(tm1);
    put(tm2, "r1", "cf1", "cq5", 5, "v7"); // should not see this because it should not switch until the row is finished
    put(tm2, "r2", "cf1", "cq1", 5, "v8"); // should see this new row after it switches
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    put(tm1, "r1", "cf1", "cq1", 5, "v1");
    put(tm1, "r1", "cf1", "cq2", 5, "v2");
   
    SortedMapIterator smi = new SortedMapIterator(tm1);
    TestDataSource tds = new TestDataSource(smi);
    SourceSwitchingIterator ssi = new SourceSwitchingIterator(tds, false);
   
    TreeMap<Key,Value> tm2 = new TreeMap<Key,Value>();
    put(tm2, "r1", "cf1", "cq1", 6, "v3");
    put(tm2, "r1", "cf1", "cq2", 6, "v4");
   
    SortedMapIterator smi2 = new SortedMapIterator(tm2);
    TestDataSource tds2 = new TestDataSource(smi2);
    tds.next = tds2;
   
    ssi.seek(new Range(), new ArrayList<ByteSequence>(), false);
   
    ane(ssi, "r1", "cf1", "cq1", 6, "v3", true);
    ane(ssi, "r1", "cf1", "cq2", 6, "v4", true);
   
  }
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