package com.liveramp.cascading_ext.assembly;
import cascading.flow.Flow;
import cascading.flow.FlowProcess;
import cascading.operation.BaseOperation;
import cascading.operation.Buffer;
import cascading.operation.BufferCall;
import cascading.pipe.GroupBy;
import cascading.pipe.Pipe;
import cascading.stats.FlowStats;
import cascading.tap.Tap;
import cascading.tuple.Fields;
import cascading.tuple.Tuple;
import com.liveramp.cascading_ext.BaseTestCase;
import com.liveramp.cascading_ext.CascadingUtil;
import com.liveramp.cascading_ext.counters.Counters;
import com.liveramp.cascading_ext.tap.NullTap;
import com.twitter.maple.tap.MemorySourceTap;
import org.junit.Assert;
import org.junit.Test;
import java.util.Arrays;
public class TestEveryStats extends BaseTestCase {
@Test
public void run() {
Tap source = new MemorySourceTap(Arrays.asList(
new Tuple(1),
new Tuple(2),
new Tuple(1)),
new Fields("field"));
Pipe pipe = new Pipe("pipe");
pipe = new GroupBy(pipe, new Fields("field"));
pipe = new EveryStats(pipe, new MyBuffer());
Flow f = CascadingUtil.get().getFlowConnector().connect(source, new NullTap(), pipe);
f.complete();
Assert.assertEquals(2l, Counters.get(f, "TestEveryStats.java", "36 - MyBuffer - Input groups").longValue());
Assert.assertEquals(4l, Counters.get(f, "TestEveryStats.java", "36 - MyBuffer - Output records").longValue());
}
private static class MyBuffer extends BaseOperation implements Buffer {
@Override
public void operate(FlowProcess flowProcess, BufferCall bufferCall) {
bufferCall.getOutputCollector().add(new Tuple(0));
bufferCall.getOutputCollector().add(new Tuple(1));
}
}
}