Package org.apache.cassandra.dht

Examples of org.apache.cassandra.dht.OrderPreservingPartitioner

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    @Test
    public void testStringEndpoints() throws UnknownHostException
    {
        TokenMetadata tmd = new TokenMetadata();
        IPartitioner partitioner = new OrderPreservingPartitioner();
        AbstractReplicationStrategy strategy = new RackUnawareStrategy(tmd, partitioner, 3);

        List<Token> endPointTokens = new ArrayList<Token>();
        List<Token> keyTokens = new ArrayList<Token>();
        for (int i = 0; i < 5; i++) {
            endPointTokens.add(new StringToken(String.valueOf((char)('a' + i * 2))));
            keyTokens.add(partitioner.getToken(String.valueOf((char)('a' + i * 2 + 1))));
        }
        testGetEndpoints(tmd, strategy, endPointTokens.toArray(new Token[0]), keyTokens.toArray(new Token[0]));
    }
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    @Test
    public void testStringEndpoints() throws UnknownHostException
    {
        TokenMetadata tmd = new TokenMetadata();
        IPartitioner partitioner = new OrderPreservingPartitioner();
        AbstractReplicationStrategy strategy = new RackUnawareStrategy(tmd, partitioner, 3);

        List<Token> endPointTokens = new ArrayList<Token>();
        List<Token> keyTokens = new ArrayList<Token>();
        for (int i = 0; i < 5; i++) {
            endPointTokens.add(new StringToken(String.valueOf((char)('a' + i * 2))));
            keyTokens.add(partitioner.getToken(String.valueOf((char)('a' + i * 2 + 1))));
        }
        testGetEndpoints(tmd, strategy, endPointTokens.toArray(new Token[0]), keyTokens.toArray(new Token[0]));
    }
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    @Test
    public void testSingleWrite() throws IOException {
        File f = tempSSTableFileName();

        // write test data
        SSTableWriter writer = new SSTableWriter(f.getAbsolutePath(), 1, new OrderPreservingPartitioner());
        Random random = new Random();
        byte[] bytes = new byte[1024];
        random.nextBytes(bytes);

        String key = Integer.toString(1);
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        {
            map.put(Integer.toString(i), ("Avinash Lakshman is a good man: " + i).getBytes());
        }

        // write
        SSTableWriter writer = new SSTableWriter(f.getAbsolutePath(), 1000, new OrderPreservingPartitioner());
        for (String key: map.navigableKeySet())
        {
            writer.append(writer.partitioner.decorateKey(key), map.get(key));
        }
        SSTableReader ssTable = writer.closeAndOpenReader(0.01);
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    @Test
    public void testSingleWrite() throws IOException {
        File f = tempSSTableFileName();

        // write test data
        SSTableWriter writer = new SSTableWriter(f.getAbsolutePath(), 1, new OrderPreservingPartitioner());
        Random random = new Random();
        byte[] bytes = new byte[1024];
        random.nextBytes(bytes);

        String key = Integer.toString(1);
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        {
            map.put(Integer.toString(i), ("Avinash Lakshman is a good man: " + i).getBytes());
        }

        // write
        SSTableWriter writer = new SSTableWriter(f.getAbsolutePath(), 1000, new OrderPreservingPartitioner());
        for (String key: map.navigableKeySet())
        {
            writer.append(key, map.get(key));
        }
        SSTableReader ssTable = writer.closeAndOpenReader(0.01);
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    public void testSingleWrite() throws IOException {
        File f = File.createTempFile("sstable", "");
        SSTable ssTable;

        // write test data
        ssTable = new SSTable(f.getParent(), f.getName(), new OrderPreservingPartitioner());
        BloomFilter bf = new BloomFilter(1000, 8);
        Random random = new Random();
        byte[] bytes = new byte[1024];
        random.nextBytes(bytes);

        String key = Integer.toString(1);
        ssTable.append(key, bytes);
        bf.add(key);
        ssTable.close(bf);

        // verify
        SSTable.indexMetadataMap_.clear(); // force reloading the index
        ssTable = new SSTable(f.getPath() + "-Data.db", new OrderPreservingPartitioner());
        FileStruct fs = new FileStruct(SequenceFile.bufferedReader(ssTable.dataFile_, 128 * 1024), new OrderPreservingPartitioner());
        fs.seekTo(key);
        int size = fs.getBufIn().readInt();
        byte[] bytes2 = new byte[size];
        fs.getBufIn().readFully(bytes2);
        assert Arrays.equals(bytes2, bytes);
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        {
            map.put(Integer.toString(i), ("Avinash Lakshman is a good man: " + i).getBytes());
        }

        // write
        ssTable = new SSTable(f.getParent(), f.getName(), new OrderPreservingPartitioner());
        BloomFilter bf = new BloomFilter(1000, 8);
        for (String key: map.navigableKeySet())
        {
            ssTable.append(key, map.get(key));
        }
        ssTable.close(bf);

        // verify
        SSTable.indexMetadataMap_.clear(); // force reloading the index
        List<String> keys = new ArrayList(map.keySet());
        Collections.shuffle(keys);
        ssTable = new SSTable(f.getPath() + "-Data.db", new OrderPreservingPartitioner());
        FileStruct fs = new FileStruct(SequenceFile.bufferedReader(ssTable.dataFile_, 128 * 1024), new OrderPreservingPartitioner());
        for (String key : keys)
        {
            fs.seekTo(key);
            int size = fs.getBufIn().readInt();
            byte[] bytes2 = new byte[size];
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    @Test
    public void testStringStorageEndPoints()
    {
        TokenMetadata tmd = new TokenMetadata();
        IPartitioner partitioner = new OrderPreservingPartitioner();
        IReplicaPlacementStrategy strategy = new RackUnawareStrategy(tmd, partitioner, 3, 7000);

        List<Token> endPointTokens = new ArrayList<Token>();
        List<Token> keyTokens = new ArrayList<Token>();
        for (int i = 0; i < 5; i++) {
            endPointTokens.add(new StringToken(String.valueOf((char)('a' + i * 2))));
            keyTokens.add(partitioner.getInitialToken(String.valueOf((char)('a' + i * 2 + 1))));
        }
        testGetStorageEndPoints(tmd, strategy, endPointTokens.toArray(new Token[0]), keyTokens.toArray(new Token[0]));
    }
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    @Test
    public void testStringStorageEndPoints()
    {
        TokenMetadata tmd = new TokenMetadata();
        IPartitioner partitioner = new OrderPreservingPartitioner();
        AbstractReplicationStrategy strategy = new RackUnawareStrategy(tmd, partitioner, 3, 7000);

        List<Token> endPointTokens = new ArrayList<Token>();
        List<Token> keyTokens = new ArrayList<Token>();
        for (int i = 0; i < 5; i++) {
            endPointTokens.add(new StringToken(String.valueOf((char)('a' + i * 2))));
            keyTokens.add(partitioner.getToken(String.valueOf((char)('a' + i * 2 + 1))));
        }
        testGetStorageEndPoints(tmd, strategy, endPointTokens.toArray(new Token[0]), keyTokens.toArray(new Token[0]));
    }
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Related Classes of org.apache.cassandra.dht.OrderPreservingPartitioner

  • org.apache.cassandra.db.BufferDecoratedKey
  • org.apache.cassandra.db.DecoratedKey
  • org.apache.cassandra.io.SSTableTest
  • org.apache.cassandra.locator.RackUnawareStrategyTest
  • java.util.Random
  • java.math.BigInteger
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