Examples with Channel org.apache.flume.Channel used on opensource projects

Example 11 with Channel

use of org.apache.flume.Channel in project phoenix by apache.

the class JsonEventSerializerIT method testInnerColumnsWithArrayMapping.

@Test
public void testInnerColumnsWithArrayMapping() throws EventDeliveryException, SQLException {
    final String fullTableName = "FLUME_JSON_TEST";
    String ddl = "CREATE TABLE IF NOT EXISTS " + fullTableName + "  (flume_time timestamp not null, col1 varchar , col2 double, col3 varchar[], col4 integer[]" + "  CONSTRAINT pk PRIMARY KEY (flume_time))\n";
    String columns = "col1,col2,col3,col4";
    String rowkeyType = DefaultKeyGenerator.TIMESTAMP.name();
    String columnsMapping = "{\"col1\":\"col1\",\"col2\":\"x.y\",\"col3\":\"a.b[*].c\",\"col4\":\"col4\"}";
    initSinkContext(fullTableName, ddl, columns, columnsMapping, rowkeyType, null);
    sink = new PhoenixSink();
    Configurables.configure(sink, sinkContext);
    assertEquals(LifecycleState.IDLE, sink.getLifecycleState());
    final Channel channel = this.initChannel();
    sink.setChannel(channel);
    sink.start();
    final String eventBody = "{\"col1\" : \"kalyan\", \"x\" : {\"y\" : 10.5}, \"a\" : {\"b\" : [{\"c\" : \"abc\"}, {\"c\" : \"pqr\"}, {\"c\" : \"xyz\"}] , \"b2\" : 111}, \"col4\" : [1,2,3,4]}";
    final Event event = EventBuilder.withBody(Bytes.toBytes(eventBody));
    // put event in channel
    Transaction transaction = channel.getTransaction();
    transaction.begin();
    channel.put(event);
    transaction.commit();
    transaction.close();
    sink.process();
    int rowsInDb = countRows(fullTableName);
    assertEquals(1, rowsInDb);
    sink.stop();
    assertEquals(LifecycleState.STOP, sink.getLifecycleState());
    dropTable(fullTableName);
}

Example 12 with Channel

use of org.apache.flume.Channel in project phoenix by apache.

the class CsvEventSerializerIT method testEventsWithHeaders.

@Test
public void testEventsWithHeaders() throws Exception {
    sinkContext = new Context();
    final String fullTableName = "FLUME_CSV_TEST";
    final String ddl = "CREATE TABLE IF NOT EXISTS " + fullTableName + "  (rowkey VARCHAR not null, col1 varchar , col2 double, col3 varchar[], col4 integer[], host varchar , source varchar \n" + "  CONSTRAINT pk PRIMARY KEY (rowkey))\n";
    String columns = "col1,col2,col3,col4";
    String rowkeyType = DefaultKeyGenerator.UUID.name();
    String headers = "host,source";
    initSinkContext(fullTableName, ddl, columns, null, null, null, null, rowkeyType, headers);
    sink = new PhoenixSink();
    Configurables.configure(sink, sinkContext);
    assertEquals(LifecycleState.IDLE, sink.getLifecycleState());
    final Channel channel = this.initChannel();
    sink.setChannel(channel);
    sink.start();
    int numEvents = 10;
    String col1 = "val1";
    String a1 = "\"aaa,bbb,ccc\"";
    String a2 = "\"1,2,3,4\"";
    String hostHeader = "host1";
    String sourceHeader = "source1";
    String eventBody = null;
    List<Event> eventList = Lists.newArrayListWithCapacity(numEvents);
    for (int i = 0; i < numEvents; i++) {
        eventBody = (col1 + i) + "," + i * 10.5 + "," + a1 + "," + a2;
        Map<String, String> headerMap = Maps.newHashMapWithExpectedSize(2);
        headerMap.put("host", hostHeader);
        headerMap.put("source", sourceHeader);
        Event event = EventBuilder.withBody(Bytes.toBytes(eventBody), headerMap);
        eventList.add(event);
    }
    // put event in channel
    Transaction transaction = channel.getTransaction();
    transaction.begin();
    for (Event event : eventList) {
        channel.put(event);
    }
    transaction.commit();
    transaction.close();
    sink.process();
    final String query = " SELECT * FROM \n " + fullTableName;
    Properties props = PropertiesUtil.deepCopy(TEST_PROPERTIES);
    final ResultSet rs;
    final Connection conn = DriverManager.getConnection(getUrl(), props);
    try {
        rs = conn.createStatement().executeQuery(query);
        assertTrue(rs.next());
        assertEquals("host1", rs.getString("host"));
        assertEquals("source1", rs.getString("source"));
        assertTrue(rs.next());
        assertEquals("host1", rs.getString("host"));
        assertEquals("source1", rs.getString("source"));
    } finally {
        if (conn != null) {
            conn.close();
        }
    }
    sink.stop();
    assertEquals(LifecycleState.STOP, sink.getLifecycleState());
    dropTable(fullTableName);
}

Example 13 with Channel

use of org.apache.flume.Channel in project phoenix by apache.

the class CsvEventSerializerIT method testMissingColumnsInEvent.

@Test
public void testMissingColumnsInEvent() throws EventDeliveryException, SQLException {
    final String fullTableName = "FLUME_CSV_TEST";
    initSinkContextWithDefaults(fullTableName);
    sink = new PhoenixSink();
    Configurables.configure(sink, sinkContext);
    assertEquals(LifecycleState.IDLE, sink.getLifecycleState());
    final Channel channel = this.initChannel();
    sink.setChannel(channel);
    sink.start();
    final String eventBody = "kalyan,\"abc,pqr,xyz\",\"1,2,3,4\"";
    final Event event = EventBuilder.withBody(Bytes.toBytes(eventBody));
    // put event in channel
    Transaction transaction = channel.getTransaction();
    transaction.begin();
    channel.put(event);
    transaction.commit();
    transaction.close();
    sink.process();
    int rowsInDb = countRows(fullTableName);
    assertEquals(0, rowsInDb);
    sink.stop();
    assertEquals(LifecycleState.STOP, sink.getLifecycleState());
    dropTable(fullTableName);
}

Example 14 with Channel

use of org.apache.flume.Channel in project cdap-ingest by caskdata.

the class StreamSink method process.

@Override
public Status process() throws EventDeliveryException {
    Status status = Status.READY;
    Channel channel = getChannel();
    Transaction transaction = channel.getTransaction();
    try {
        tryReopenClientConnection();
        transaction.begin();
        Event event = channel.take();
        if (event != null) {
            try {
                writer.write(ByteBuffer.wrap(event.getBody()), event.getHeaders()).get();
                LOG.trace("Success write to stream: {} ", streamName);
            } catch (Throwable t) {
                if (t instanceof ExecutionException) {
                    t = t.getCause();
                }
                LOG.error("Error during writing event to stream {}", streamName, t);
                throw new EventDeliveryException("Failed to send events to stream: " + streamName, t);
            }
        }
        transaction.commit();
    } catch (Throwable t) {
        transaction.rollback();
        if (t instanceof Error) {
            throw (Error) t;
        } else if (t instanceof ChannelException) {
            LOG.error("Stream Sink {}: Unable to get event from channel {} ", getName(), channel.getName());
            status = Status.BACKOFF;
        } else {
            LOG.debug("Closing writer due to stream error ", t);
            closeClientQuietly();
            closeWriterQuietly();
            throw new EventDeliveryException("Sink event sending error", t);
        }
    } finally {
        transaction.close();
    }
    return status;
}

Example 15 with Channel

use of org.apache.flume.Channel in project cdap-ingest by caskdata.

the class MockStreamSink method getMockChannel.

private Channel getMockChannel() {
    Channel channel = Mockito.mock(Channel.class);
    Transaction transaction = Mockito.mock(Transaction.class);
    Mockito.doNothing().when(transaction).begin();
    Mockito.doNothing().when(transaction).commit();
    Mockito.doNothing().when(transaction).close();
    Mockito.doNothing().when(transaction).rollback();
    Mockito.when(channel.getTransaction()).thenReturn(transaction);
    Mockito.when(channel.take()).thenReturn(new SimpleEvent());
    return channel;
}