package com.cloudera.flume.handlers.debug;
import static org.junit.Assert.*;
import java.io.IOException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.junit.Test;
import com.cloudera.flume.conf.FlumeBuilder;
import com.cloudera.flume.conf.FlumeSpecException;
import com.cloudera.flume.conf.ReportTestingContext;
import com.cloudera.flume.core.Event;
import com.cloudera.flume.core.EventImpl;
import com.cloudera.flume.core.EventSink;
import com.cloudera.flume.reporter.ReportManager;
import com.cloudera.flume.reporter.aggregator.CounterSink;
public static final Logger LOG = LoggerFactory.getLogger(TestLazyOpen.class);
int opened = 0;
int closed = 0;
@Override
public void append(Event e)
throws IOException {
}
@Override
public void close()
throws IOException {
closed++;
LOG.info("actually closed");
}
@Override
public void open()
throws IOException {
opened++;
LOG.info("actually open happened now");
}
}
@Test
OpenInstanceCountingSink snk = new OpenInstanceCountingSink();
LazyOpenDecorator<EventSink> lazy = new LazyOpenDecorator<EventSink>(snk);
lazy.open();
LOG.info("lazy decorator opened");
assertEquals(0, snk.opened);
LOG.info("appending");
Event e = new EventImpl("foo".getBytes());
lazy.append(e);
assertEquals(1, snk.opened);
LOG.info("done");
}
@Test
OpenInstanceCountingSink snk = new OpenInstanceCountingSink();
LazyOpenDecorator<EventSink> lazy = new LazyOpenDecorator<EventSink>(snk);
lazy.open();
lazy.close();
LOG.info("lazy decorator opened");
assertEquals(0, snk.closed);
LOG.info("appending");
Event e = new EventImpl("foo".getBytes());
lazy.open();
lazy.append(e);
lazy.close();
assertEquals(1, snk.opened);
LOG.info("done");
}
@Test
EventSink snk = FlumeBuilder.buildSink(new ReportTestingContext(),
"{ lazyOpen => counter(\"count\") } ");
CounterSink cnt = (CounterSink) ReportManager.get().getReportable("count");
boolean ok = false;
Event e = new EventImpl("event".getBytes());
snk.open();
try {
cnt.append(e);
} catch (Exception ex) {
ok = true;
}
assertTrue(ok);
snk.append(e);
assertEquals(1, cnt.getCount());
snk.close();
}
}