Package org.apache.cassandra.io

Examples of org.apache.cassandra.io.DataOutputBuffer

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            map.put(Integer.toString(i), "Avinash Lakshman is a good man: " + i);
        }

        // write
        cf = ColumnFamily.create("Keyspace1", "Standard1");
        DataOutputBuffer bufOut = new DataOutputBuffer();
        for (String cName : map.navigableKeySet())
        {
            cf.addColumn(column(cName, map.get(cName), 314));
        }
        ColumnFamily.serializer().serialize(cf, bufOut);

        // verify
        DataInputBuffer bufIn = new DataInputBuffer();
        bufIn.reset(bufOut.getData(), bufOut.getLength());
        cf = ColumnFamily.serializer().deserialize(bufIn);
        for (String cName : map.navigableKeySet())
        {
            assert new String(cf.getColumn(cName.getBytes()).value()).equals(map.get(cName));
        }
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    public static void serialize(ColumnFamily columnFamily, DataOutput dos) throws IOException
  {
        Collection<IColumn> columns = columnFamily.getSortedColumns();
        BloomFilter bf = createColumnBloomFilter(columns);                   
        /* Write out the bloom filter. */
        DataOutputBuffer bufOut = new DataOutputBuffer();
        BloomFilter.serializer().serialize(bf, bufOut);
        /* write the length of the serialized bloom filter. */
        dos.writeInt(bufOut.getLength());
        /* write out the serialized bytes. */
        dos.write(bufOut.getData(), 0, bufOut.getLength());

        /* Do the indexing */
        doIndexing(columnFamily.getComparator(), columns, dos);
  }
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            public int compare(String o1, String o2)
            {
                return dc.compare(partitioner.decorateKey(o1), partitioner.decorateKey(o2));
            }
        });
        DataOutputBuffer buffer = new DataOutputBuffer();
        for (String key : orderedKeys)
        {
            buffer.reset();
            ColumnFamily columnFamily = columnFamilies_.get(key);
            if (columnFamily != null)
            {
                /* serialize the cf with column indexes */
                ColumnFamily.serializer().serializeWithIndexes(columnFamily, buffer);
                /* Now write the key and value to disk */
                writer.append(partitioner.decorateKey(key), buffer);
            }
        }
        SSTableReader ssTable = writer.closeAndOpenReader();
        cfStore.onMemtableFlush(cLogCtx);
        cfStore.storeLocation(ssTable);
        buffer.close();
        isFlushed_ = true;
        logger_.info("Completed flushing " + this);
    }
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    }

    private ReadCommand serializeAndDeserializeReadMessage(ReadCommand rm) throws IOException
    {
        ReadCommandSerializer rms = ReadCommand.serializer();
        DataOutputBuffer dos = new DataOutputBuffer();
        DataInputBuffer dis = new DataInputBuffer();

        rms.serialize(rm, dos);
        dis.reset(dos.getData(), dos.getLength());
        return rms.deserialize(dis);
    }
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public class FastSerializer implements ISerializer
{
    public byte[] serialize(Message message) throws IOException
    {
        DataOutputBuffer buffer = new DataOutputBuffer();
        Message.serializer().serialize(message, buffer);
        return buffer.getData();
    }
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    }

    public static Filter testSerialize(Filter f) throws IOException
    {
        f.add("a");
        DataOutputBuffer out = new DataOutputBuffer();
        f.getSerializer().serialize(f, out);

        DataInputBuffer in = new DataInputBuffer();
        in.reset(out.getData(), out.getLength());
        Filter f2 = f.getSerializer().deserialize(in);

        assert f2.isPresent("a");
        assert !f2.isPresent("b");
        return f2;
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    {
        ColumnFamily cf;

        cf = ColumnFamily.create("Keyspace1", "Standard1");
        cf.addColumn(column("C", "v", 1));
        DataOutputBuffer bufOut = new DataOutputBuffer();
        ColumnFamily.serializer().serialize(cf, bufOut);

        DataInputBuffer bufIn = new DataInputBuffer();
        bufIn.reset(bufOut.getData(), bufOut.getLength());
        cf = ColumnFamily.serializer().deserialize(bufIn);
        assert cf != null;
        assert cf.name().equals("Standard1");
        assert cf.getSortedColumns().size() == 1;
    }
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            map.put(Integer.toString(i), "Avinash Lakshman is a good man: " + i);
        }

        // write
        cf = ColumnFamily.create("Keyspace1", "Standard1");
        DataOutputBuffer bufOut = new DataOutputBuffer();
        for (String cName : map.navigableKeySet())
        {
            cf.addColumn(column(cName, map.get(cName), 314));
        }
        ColumnFamily.serializer().serialize(cf, bufOut);

        // verify
        DataInputBuffer bufIn = new DataInputBuffer();
        bufIn.reset(bufOut.getData(), bufOut.getLength());
        cf = ColumnFamily.serializer().deserialize(bufIn);
        for (String cName : map.navigableKeySet())
        {
            assert new String(cf.getColumn(cName.getBytes()).value()).equals(map.get(cName));
        }
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        assertEquals(endPoint, expected.getEndPoint());
        assertEquals(generation, expected.getGeneration());
        assertEquals(maxVersion, expected.getMaxVersion());
       
        //test the serialization and equals
        DataOutputBuffer output = new DataOutputBuffer();
        GossipDigest.serializer().serialize(expected, output);
       
        DataInputBuffer input = new DataInputBuffer();
        input.reset(output.getData(), output.getLength());
        GossipDigest actual = GossipDigest.serializer().deserialize(input);
        assertEquals(0, expected.compareTo(actual));
    }
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        this.rangeCompletedLocally = rangeCompletedLocally;
    }

    public Message getReply(Message originalMessage) throws IOException
    {
        DataOutputBuffer dob = new DataOutputBuffer();
        dob.writeBoolean(rangeCompletedLocally);

        for (String key : keys)
        {
            dob.writeUTF(key);
        }
        byte[] data = Arrays.copyOf(dob.getData(), dob.getLength());
        return originalMessage.getReply(StorageService.getLocalStorageEndPoint(), data);
    }
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Related Classes of org.apache.cassandra.io.DataOutputBuffer

  • org.apache.cassandra.bulkloader.CassandraBulkLoader
  • org.apache.cassandra.db.Column
  • org.apache.cassandra.db.ColumnFamilyStore
  • org.apache.cassandra.db.ColumnFamilyTest
  • org.apache.cassandra.db.ColumnIndexer
  • org.apache.cassandra.db.CommitLog
  • org.apache.cassandra.db.CommitLog$LogRecordAdder
  • org.apache.cassandra.db.CompactSerializerInvocationHandler
  • org.apache.cassandra.db.FileStruct
  • org.apache.cassandra.db.Memtable
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