Examples with KeyedStateReaderFunction org.apache.flink.state.api.functions.KeyedStateReaderFunction used on opensource projects

Example 6 with KeyedStateReaderFunction

use of org.apache.flink.state.api.functions.KeyedStateReaderFunction in project flink by apache.

the class KeyedStateInputFormatTest method testReadMultipleOutputPerKey.

@Test
public void testReadMultipleOutputPerKey() throws Exception {
    OperatorID operatorID = OperatorIDGenerator.fromUid("uid");
    OperatorSubtaskState state = createOperatorSubtaskState(new StreamFlatMap<>(new StatefulFunction()));
    OperatorState operatorState = new OperatorState(operatorID, 1, 128);
    operatorState.putState(0, state);
    KeyedStateInputFormat<?, ?, ?> format = new KeyedStateInputFormat<>(operatorState, new MemoryStateBackend(), new Configuration(), new KeyedStateReaderOperator<>(new ReaderFunction(), Types.INT));
    KeyGroupRangeInputSplit split = format.createInputSplits(1)[0];
    KeyedStateReaderFunction<Integer, Integer> userFunction = new DoubleReaderFunction();
    List<Integer> data = readInputSplit(split, userFunction);
    Assert.assertEquals("Incorrect data read from input split", Arrays.asList(1, 1, 2, 2, 3, 3), data);
}