Package org.apache.cassandra.dht

Examples of org.apache.cassandra.dht.IPartitioner

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    @Test
    public void testInclusiveBounds() throws IOException, ExecutionException, InterruptedException
    {
        ColumnFamilyStore cfs = insertKey1Key2();

        IPartitioner p = StorageService.getPartitioner();
        List<Row> result = cfs.getRangeSlice(ByteBufferUtil.EMPTY_BYTE_BUFFER,
                                             Util.bounds("key1", "key2"),
                                             10,
                                             new NamesQueryFilter(ByteBufferUtil.bytes("asdf")),
                                             null);
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        if (range.start_token != null && range.end_key != null)
            throw new org.apache.cassandra.exceptions.InvalidRequestException("start token + end key is not a supported key range");

        if (range.start_key != null && range.end_key != null)
        {
            IPartitioner p = StorageService.getPartitioner();
            Token startToken = p.getToken(range.start_key);
            Token endToken = p.getToken(range.end_key);
            if (startToken.compareTo(endToken) > 0 && !endToken.isMinimum(p))
            {
                if (p instanceof RandomPartitioner)
                    throw new org.apache.cassandra.exceptions.InvalidRequestException("start key's md5 sorts after end key's md5.  this is not allowed; you probably should not specify end key at all, under RandomPartitioner");
                else
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    {
        if (logger.isDebugEnabled())
          logger.debug("Started scheduleAllDeliveries");

        ColumnFamilyStore hintStore = Table.open(Table.SYSTEM_KS).getColumnFamilyStore(SystemTable.HINTS_CF);
        IPartitioner p = StorageService.getPartitioner();
        RowPosition minPos = p.getMinimumToken().minKeyBound();
        Range<RowPosition> range = new Range<RowPosition>(minPos, minPos, p);
        IDiskAtomFilter filter = new NamesQueryFilter(ImmutableSortedSet.<ByteBuffer>of());
        List<Row> rows = hintStore.getRangeSlice(null, range, Integer.MAX_VALUE, filter, null);
        for (Row row : rows)
        {
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        return open(descriptor, metadata);
    }

    public static SSTableReader open(Descriptor desc, CFMetaData metadata) throws IOException
    {
        IPartitioner p = desc.cfname.contains(SECONDARY_INDEX_NAME_SEPARATOR)
                       ? new LocalPartitioner(metadata.getKeyValidator())
                       : StorageService.getPartitioner();
        return open(desc, componentsFor(desc), metadata, p);
    }
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    }

    public static List<Row> scan(final String keyspace, String column_family, IndexClause index_clause, SlicePredicate column_predicate, ConsistencyLevel consistency_level)
    throws IOException, TimeoutException, UnavailableException
    {
        IPartitioner p = StorageService.getPartitioner();

        Token leftToken = index_clause.start_key == null ? p.getMinimumToken() : p.getToken(index_clause.start_key);
        List<AbstractBounds> ranges = getRestrictedRanges(new Bounds(leftToken, p.getMinimumToken()));
        logger.debug("scan ranges are {}", StringUtils.join(ranges, ","));

        // now scan until we have enough results
        List<Row> rows = new ArrayList<Row>(index_clause.count);
        for (AbstractBounds range : ranges)
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    @Test
    public void testSkipStartKey() throws IOException, ExecutionException, InterruptedException
    {
        ColumnFamilyStore cfs = insertKey1Key2();

        IPartitioner p = StorageService.getPartitioner();
        List<Row> result = cfs.getRangeSlice(ByteBufferUtil.EMPTY_BYTE_BUFFER,
                                             Util.range(p, "key1", "key2"),
                                             10,
                                             new NamesQueryFilter(ByteBufferUtil.bytes("asdf")));
        assertEquals(1, result.size());
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        // basic single-expression query
        IndexExpression expr = new IndexExpression(ByteBufferUtil.bytes("birthdate"), IndexOperator.EQ, ByteBufferUtil.bytes(1L));
        IndexClause clause = new IndexClause(Arrays.asList(expr), ByteBufferUtil.EMPTY_BYTE_BUFFER, 100);
        IFilter filter = new IdentityQueryFilter();
        IPartitioner p = StorageService.getPartitioner();
        Range range = new Range(p.getMinimumToken(), p.getMinimumToken());
        List<Row> rows = Table.open("Keyspace1").getColumnFamilyStore("Indexed1").indexManager.search(clause, range, filter);

        assert rows != null;
        assert rows.size() == 2 : StringUtils.join(rows, ",");
       
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        IndexExpression expr = new IndexExpression(ByteBufferUtil.bytes("birthdate"), IndexOperator.EQ, ByteBufferUtil.bytes(34L));
        IndexExpression expr2 = new IndexExpression(ByteBufferUtil.bytes("notbirthdate"), IndexOperator.EQ, ByteBufferUtil.bytes(1L));
        IndexClause clause = new IndexClause(Arrays.asList(expr, expr2), ByteBufferUtil.EMPTY_BYTE_BUFFER, 100);
        IFilter filter = new IdentityQueryFilter();
        IPartitioner p = StorageService.getPartitioner();
        Range range = new Range(p.getMinimumToken(), p.getMinimumToken());
        List<Row> rows = Table.open("Keyspace1").getColumnFamilyStore("Indexed1").search(clause, range, filter);

        assert rows != null;
        assert rows.size() == 50 : rows.size();
        Set<DecoratedKey> keys = new HashSet<DecoratedKey>();
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        rm.apply();

        IndexExpression expr = new IndexExpression(ByteBufferUtil.bytes("birthdate"), IndexOperator.EQ, ByteBufferUtil.bytes(1L));
        IndexClause clause = new IndexClause(Arrays.asList(expr), ByteBufferUtil.EMPTY_BYTE_BUFFER, 100);
        IFilter filter = new IdentityQueryFilter();
        IPartitioner p = StorageService.getPartitioner();
        Range range = new Range(p.getMinimumToken(), p.getMinimumToken());
        List<Row> rows = cfs.search(clause, range, filter);
        assert rows.size() == 1 : StringUtils.join(rows, ",");
        String key = ByteBufferUtil.string(rows.get(0).key.key);
        assert "k1".equals( key );
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        rm.apply();

        IndexExpression expr = new IndexExpression(ByteBufferUtil.bytes("birthdate"), IndexOperator.EQ, ByteBufferUtil.bytes(1L));
        IndexClause clause = new IndexClause(Arrays.asList(expr), ByteBufferUtil.EMPTY_BYTE_BUFFER, 100);
        IFilter filter = new IdentityQueryFilter();
        IPartitioner p = StorageService.getPartitioner();
        Range range = new Range(p.getMinimumToken(), p.getMinimumToken());
        List<Row> rows = table.getColumnFamilyStore("Indexed1").search(clause, range, filter);
        assert rows.size() == 0;

        expr = new IndexExpression(ByteBufferUtil.bytes("birthdate"), IndexOperator.EQ, ByteBufferUtil.bytes(2L));
        clause = new IndexClause(Arrays.asList(expr), ByteBufferUtil.EMPTY_BYTE_BUFFER, 100);
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Related Classes of org.apache.cassandra.dht.IPartitioner

  • org.apache.cassandra.avro.AvroValidation
  • org.apache.cassandra.db.BatchlogManager
  • org.apache.cassandra.db.BinaryMemtable
  • org.apache.cassandra.db.CleanupTest
  • org.apache.cassandra.db.ColumnFamilyStore
  • org.apache.cassandra.db.ColumnFamilyStoreTest
  • org.apache.cassandra.db.DBManager
  • org.apache.cassandra.db.HintedHandOffManager
  • org.apache.cassandra.db.Memtable
  • org.apache.cassandra.db.SerializationsTest
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