Package org.apache.cassandra.io.util

Examples of org.apache.cassandra.io.util.DataOutputStreamAndChannel

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        {
            WritableByteChannel out = socket.getChannel();
            // socket channel is null when encrypted(SSL)
            if (out == null)
                out = Channels.newChannel(socket.getOutputStream());
            return new DataOutputStreamAndChannel(socket.getOutputStream(), out);
        }
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        public void run()
        {
            try
            {
                DataOutputStreamAndChannel out = getWriteChannel(socket);

                StreamMessage next;
                while (!isClosed())
                {
                    if ((next = messageQueue.poll(1, TimeUnit.SECONDS)) != null)
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                String path = descriptor.filenameFor(Component.FILTER);
                try
                {
                    // bloom filter
                    FileOutputStream fos = new FileOutputStream(path);
                    DataOutputStreamAndChannel stream = new DataOutputStreamAndChannel(fos);
                    FilterFactory.serialize(bf, stream);
                    stream.flush();
                    fos.getFD().sync();
                    stream.close();
                }
                catch (IOException e)
                {
                    throw new FSWriteError(e, path);
                }
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        ByteBuffer test = ByteBuffer.wrap(new byte[] {0, 1});

        File file = FileUtils.createTempFile("bloomFilterTest-", ".dat");
        BloomFilter filter = (BloomFilter) FilterFactory.getFilter(((long)Integer.MAX_VALUE / 8) + 1, 0.01d, true);
        filter.add(test);
        DataOutputStreamAndChannel out = new DataOutputStreamAndChannel(new FileOutputStream(file));
        FilterFactory.serialize(filter, out);
        filter.bitset.serialize(out);
        out.close();
       
        DataInputStream in = new DataInputStream(new FileInputStream(file));
        BloomFilter filter2 = (BloomFilter) FilterFactory.deserialize(in, true);
        Assert.assertTrue(filter2.isPresent(test));
        FileUtils.closeQuietly(in);
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    protected static DataOutputStreamAndChannel getOutput(String name) throws IOException
    {
        File f = new File("test/data/serialization/" + CUR_VER + "/" + name);
        f.getParentFile().mkdirs();
        return new DataOutputStreamAndChannel(new FileOutputStream(f));
    }
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    private void testBloomFilterWrite(boolean offheap) throws IOException
    {
        IFilter bf = FilterFactory.getFilter(1000000, 0.0001, offheap);
        for (int i = 0; i < 100; i++)
            bf.add(StorageService.getPartitioner().getTokenFactory().toByteArray(StorageService.getPartitioner().getRandomToken()));
        DataOutputStreamAndChannel out = getOutput("utils.BloomFilter.bin");
        FilterFactory.serialize(bf, out);
        out.close();
    }
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            data[i] = 10 * i;
        }
        data[offsets.length] = 100000;
        EstimatedHistogram hist2 = new EstimatedHistogram(offsets, data);

        DataOutputStreamAndChannel out = getOutput("utils.EstimatedHistogram.bin");
        EstimatedHistogram.serializer.serialize(hist0, out);
        EstimatedHistogram.serializer.serialize(hist1, out);
        EstimatedHistogram.serializer.serialize(hist2, out);
        out.close();
    }
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        Map<MetadataType, MetadataComponent> originalMetadata = collector.finalizeMetadata(partitioner, bfFpChance, 0);

        MetadataSerializer serializer = new MetadataSerializer();
        // Serialize to tmp file
        File statsFile = File.createTempFile(Component.STATS.name, null);
        try (DataOutputStreamAndChannel out = new DataOutputStreamAndChannel(new FileOutputStream(statsFile)))
        {
            serializer.serialize(originalMetadata, out);
        }

        Descriptor desc = new Descriptor(Descriptor.Version.CURRENT, statsFile.getParentFile(), "", "", 0, Descriptor.Type.FINAL);
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        RangeSliceCommand emptyRangeCmdSup = new RangeSliceCommand(statics.KS, "Super1", statics.readTs, emptyRangePred, bounds, 100);
        MessageOut<RangeSliceCommand> emptyRangeCmdSupMsg = emptyRangeCmdSup.createMessage();
        RangeSliceCommand regRangeCmdSup = new RangeSliceCommand(statics.KS, "Super1", statics.readTs, nonEmptyRangeSCPred, bounds, 100);
        MessageOut<RangeSliceCommand> regRangeCmdSupMsg = regRangeCmdSup.createMessage();

        DataOutputStreamAndChannel out = getOutput("db.RangeSliceCommand.bin");
        namesCmdMsg.serialize(out, getVersion());
        emptyRangeCmdMsg.serialize(out, getVersion());
        regRangeCmdMsg.serialize(out, getVersion());
        namesCmdSupMsg.serialize(out, getVersion());
        emptyRangeCmdSupMsg.serialize(out, getVersion());
        regRangeCmdSupMsg.serialize(out, getVersion());
        out.close();

        // test serializedSize
        testSerializedSize(namesCmd, RangeSliceCommand.serializer);
        testSerializedSize(emptyRangeCmd, RangeSliceCommand.serializer);
        testSerializedSize(regRangeCmd, RangeSliceCommand.serializer);
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    private void testSliceByNamesReadCommandWrite() throws IOException
    {
        SliceByNamesReadCommand standardCmd = new SliceByNamesReadCommand(statics.KS, statics.Key, statics.StandardCF, statics.readTs, namesPred);
        SliceByNamesReadCommand superCmd = new SliceByNamesReadCommand(statics.KS, statics.Key, statics.SuperCF, statics.readTs, namesSCPred);

        DataOutputStreamAndChannel out = getOutput("db.SliceByNamesReadCommand.bin");
        SliceByNamesReadCommand.serializer.serialize(standardCmd, out, getVersion());
        SliceByNamesReadCommand.serializer.serialize(superCmd, out, getVersion());
        ReadCommand.serializer.serialize(standardCmd, out, getVersion());
        ReadCommand.serializer.serialize(superCmd, out, getVersion());
        standardCmd.createMessage().serialize(out, getVersion());
        superCmd.createMessage().serialize(out, getVersion());
        out.close();

        // test serializedSize
        testSerializedSize(standardCmd, SliceByNamesReadCommand.serializer);
        testSerializedSize(superCmd, SliceByNamesReadCommand.serializer);
    }
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Related Classes of org.apache.cassandra.io.util.DataOutputStreamAndChannel

  • org.apache.cassandra.AbstractSerializationsTester
  • org.apache.cassandra.db.SerializationsTest
  • org.apache.cassandra.gms.SerializationsTest
  • org.apache.cassandra.io.sstable.format.big.BigTableWriter$IndexWriter
  • org.apache.cassandra.io.sstable.metadata.MetadataSerializer
  • org.apache.cassandra.io.sstable.metadata.MetadataSerializerTest
  • org.apache.cassandra.io.sstable.SSTableReader
  • org.apache.cassandra.io.sstable.SSTableWriter$IndexWriter
  • org.apache.cassandra.streaming.ConnectionHandler$MessageHandler
  • org.apache.cassandra.streaming.ConnectionHandler$OutgoingMessageHandler
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