Package org.apache.cassandra.io.sstable

Examples of org.apache.cassandra.io.sstable.SSTableScanner$FilteredKeyScanningIterator

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        Thread.sleep(2000); // wait for ttl to expire
        assertEquals(4, cfs.getSSTables().size());
        cfs.enableAutoCompaction(true);
        assertEquals(1, cfs.getSSTables().size());
        SSTableReader sstable = cfs.getSSTables().iterator().next();
        SSTableScanner scanner = sstable.getScanner(DataRange.allData(sstable.partitioner));
        assertTrue(scanner.hasNext());
        while(scanner.hasNext())
        {
            OnDiskAtomIterator iter = scanner.next();
            assertEquals(noTTLKey, iter.getKey());
        }
    }
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            iterators.add(new ConvertToColumnIterator(filter, memtable.getEntryIterator(startWith, stopAt)));
        }

        for (SSTableReader sstable : sstables)
        {
            final SSTableScanner scanner = sstable.getScanner(filter);
            scanner.seekTo(startWith);
            iterators.add(scanner);
        }

        // reduce rows from all sources into a single row
        return MergeIterator.get(iterators, COMPARE_BY_KEY, new MergeIterator.Reducer<IColumnIterator, Row>()
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        CompactionManager.instance.performMaximal(cfs);
        assertEquals(1, cfs.getSSTables().size());

        // check that the shadowed column is gone
        SSTableReader sstable = cfs.getSSTables().iterator().next();
        SSTableScanner scanner = sstable.getScanner(new QueryFilter(null, new QueryPath("Super1", scName), new IdentityQueryFilter()));
        scanner.seekTo(key);
        OnDiskAtomIterator iter = scanner.next();
        assertEquals(key, iter.getKey());
        SuperColumn sc = (SuperColumn) iter.next();
        assert sc.getSubColumns().isEmpty();
    }
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            iterators.add(new ConvertToColumnIterator(filter, memtable.getEntryIterator(startWith, stopAt)));
        }

        for (SSTableReader sstable : sstables)
        {
            final SSTableScanner scanner = sstable.getScanner(filter);
            scanner.seekTo(startWith);
            iterators.add(scanner);
        }

        // reduce rows from all sources into a single row
        return MergeIterator.get(iterators, COMPARE_BY_KEY, new MergeIterator.Reducer<OnDiskAtomIterator, Row>()
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        }

        // sstables
        for (SSTableReader sstable : sstables)
        {
            final SSTableScanner scanner = sstable.getScanner(RANGE_FILE_BUFFER_SIZE, filter);
            scanner.seekTo(startWith);
            assert scanner instanceof Closeable; // otherwise we leak FDs
            iterators.add(scanner);
        }

        Iterator<IColumnIterator> collated = IteratorUtils.collatedIterator(COMPARE_BY_KEY, iterators);
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     */
    public static void export(String ssTableFile, PrintStream outs, String[] keys, String[] excludes)
    throws IOException
    {
        SSTableReader reader = SSTableReader.open(Descriptor.fromFilename(ssTableFile));
        SSTableScanner scanner = reader.getScanner(INPUT_FILE_BUFFER_SIZE);
        IPartitioner<?> partitioner = DatabaseDescriptor.getPartitioner();   
        Set<String> excludeSet = new HashSet();
        int i = 0;

        if (excludes != null)
            excludeSet = new HashSet<String>(Arrays.asList(excludes));
       
        outs.println("{");
       
        for (String key : keys)
        {
            if (excludeSet.contains(key))
                continue;
            DecoratedKey<?> dk = partitioner.decorateKey(hexToBytes(key));
            scanner.seekTo(dk);
           
            i++;
           
            if (scanner.hasNext())
            {
                SSTableIdentityIterator row = (SSTableIdentityIterator) scanner.next();
                try
                {
                    String jsonOut = serializeRow(row);
                    if (i != 1)
                        outs.println(",");
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    // This is necessary to accommodate the test suite since you cannot open a Reader more
    // than once from within the same process.
    static void export(SSTableReader reader, PrintStream outs, String[] excludes) throws IOException
    {
        SSTableScanner scanner = reader.getScanner(INPUT_FILE_BUFFER_SIZE);
        Set<String> excludeSet = new HashSet();

        if (excludes != null)
            excludeSet = new HashSet<String>(Arrays.asList(excludes));

        outs.println("{");

        while (scanner.hasNext())
        {
            SSTableIdentityIterator row = (SSTableIdentityIterator) scanner.next();
            if (excludeSet.contains(bytesToHex(row.getKey().key)))
                continue;
            try
            {
                String jsonOut = serializeRow(row);
                outs.print("  " + jsonOut);
                if (scanner.hasNext())
                    outs.println(",");
                else
                    outs.println();
            }
            catch (IOException ioexcep)
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Related Classes of org.apache.cassandra.io.sstable.SSTableScanner$FilteredKeyScanningIterator

  • org.apache.cassandra.db.columniterator.IColumnIteratorFactory
  • org.apache.cassandra.db.columniterator.LazyColumnIterator
  • org.apache.cassandra.db.compaction.AntiCompactionTest
  • org.apache.cassandra.db.compaction.CompactionsTest
  • org.apache.cassandra.db.compaction.TTLExpiryTest
  • org.apache.cassandra.db.DecoratedKey
  • org.apache.cassandra.db.RowIndexEntry
  • org.apache.cassandra.db.RowIteratorFactory
  • org.apache.cassandra.io.util.BufferedRandomAccessFile
  • org.apache.cassandra.tools.SSTableExport
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