Examples with DataInputBuffer org.apache.cassandra.io.util.DataInputBuffer used on opensource projects

Example 6 with DataInputBuffer

use of org.apache.cassandra.io.util.DataInputBuffer in project cassandra by apache.

the class PartitionTest method testSingleColumn.

@Test
public void testSingleColumn() throws IOException {
    ColumnFamilyStore cfs = Keyspace.open(KEYSPACE1).getColumnFamilyStore(CF_STANDARD1);
    PartitionUpdate update = new RowUpdateBuilder(cfs.metadata(), 5, "key1").clustering("c").add("val", "val1").buildUpdate();
    CachedBTreePartition partition = CachedBTreePartition.create(update.unfilteredIterator(), FBUtilities.nowInSeconds());
    DataOutputBuffer bufOut = new DataOutputBuffer();
    CachedPartition.cacheSerializer.serialize(partition, bufOut);
    CachedPartition deserialized = CachedPartition.cacheSerializer.deserialize(new DataInputBuffer(bufOut.getData()));
    assert deserialized != null;
    assert deserialized.metadata().name.equals(CF_STANDARD1);
    assert deserialized.partitionKey().equals(partition.partitionKey());
}

Example 7 with DataInputBuffer

use of org.apache.cassandra.io.util.DataInputBuffer in project cassandra by apache.

the class ReadResponseTest method roundTripSerialization.

private void roundTripSerialization(ReadResponse response, int version) {
    try {
        DataOutputBuffer out = new DataOutputBuffer();
        ReadResponse.serializer.serialize(response, out, version);
        DataInputBuffer in = new DataInputBuffer(out.buffer(), false);
        ReadResponse deser = ReadResponse.serializer.deserialize(in, version);
        if (version < MessagingService.VERSION_40) {
            assertFalse(deser.mayIncludeRepairedDigest());
            // even though that means they should never be used, verify that the default values are present
            assertEquals(ByteBufferUtil.EMPTY_BYTE_BUFFER, deser.repairedDataDigest());
            assertTrue(deser.isRepairedDigestConclusive());
        } else {
            assertTrue(deser.mayIncludeRepairedDigest());
            assertEquals(response.repairedDataDigest(), deser.repairedDataDigest());
            assertEquals(response.isRepairedDigestConclusive(), deser.isRepairedDigestConclusive());
        }
    } catch (IOException e) {
        fail("Caught unexpected IOException during SerDe: " + e.getMessage());
    }
}

Example 8 with DataInputBuffer

use of org.apache.cassandra.io.util.DataInputBuffer in project cassandra by apache.

the class StandardAnalyzer method reset.

public void reset(ByteBuffer input) {
    this.next = null;
    Reader reader = new InputStreamReader(new DataInputBuffer(input, false), StandardCharsets.UTF_8);
    scanner.yyreset(reader);
    this.inputReader = reader;
}

Example 9 with DataInputBuffer

use of org.apache.cassandra.io.util.DataInputBuffer in project cassandra by apache.

the class DurationSerializer method deserialize.

public <V> Duration deserialize(V value, ValueAccessor<V> accessor) {
    if (accessor.isEmpty(value))
        return null;
    try (// TODO: make a value input buffer
    DataInputBuffer in = new DataInputBuffer(accessor.toBuffer(value), true)) {
        int months = (int) in.readVInt();
        int days = (int) in.readVInt();
        long nanoseconds = in.readVInt();
        return Duration.newInstance(months, days, nanoseconds);
    } catch (IOException e) {
        // this should never happen with a DataInputBuffer
        throw new AssertionError("Unexpected error", e);
    }
}

Example 10 with DataInputBuffer

use of org.apache.cassandra.io.util.DataInputBuffer in project cassandra by apache.

the class DurationSerializer method validate.

public <V> void validate(V value, ValueAccessor<V> accessor) throws MarshalException {
    if (accessor.size(value) < 3)
        throw new MarshalException(String.format("Expected at least 3 bytes for a duration (%d)", accessor.size(value)));
    try (// FIXME: value input buffer
    DataInputBuffer in = new DataInputBuffer(accessor.toBuffer(value), true)) {
        long monthsAsLong = in.readVInt();
        long daysAsLong = in.readVInt();
        long nanoseconds = in.readVInt();
        if (!canBeCastToInt(monthsAsLong))
            throw new MarshalException(String.format("The duration months must be a 32 bits integer but was: %d", monthsAsLong));
        if (!canBeCastToInt(daysAsLong))
            throw new MarshalException(String.format("The duration days must be a 32 bits integer but was: %d", daysAsLong));
        int months = (int) monthsAsLong;
        int days = (int) daysAsLong;
        if (!((months >= 0 && days >= 0 && nanoseconds >= 0) || (months <= 0 && days <= 0 && nanoseconds <= 0)))
            throw new MarshalException(String.format("The duration months, days and nanoseconds must be all of the same sign (%d, %d, %d)", months, days, nanoseconds));
    } catch (IOException e) {
        // this should never happen with a DataInputBuffer
        throw new AssertionError("Unexpected error", e);
    }
}