/*
* Druid - a distributed column store.
* Copyright (C) 2012, 2013 Metamarkets Group Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package io.druid.cli;
import com.google.common.collect.ImmutableList;
import com.google.inject.Binder;
import com.google.inject.Module;
import com.metamx.common.logger.Logger;
import io.airlift.command.Command;
import io.druid.client.DruidServer;
import io.druid.client.InventoryView;
import io.druid.client.ServerView;
import io.druid.guice.LazySingleton;
import io.druid.guice.RealtimeModule;
import io.druid.segment.loading.DataSegmentPusher;
import io.druid.server.coordination.DataSegmentAnnouncer;
import io.druid.timeline.DataSegment;
import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.Executor;
/**
*/
@Command(
name = "realtime",
description = "Runs a standalone realtime node for examples, see http://druid.io/docs/latest/Realtime.html for a description"
)
public class CliRealtimeExample extends ServerRunnable
{
private static final Logger log = new Logger(CliBroker.class);
public CliRealtimeExample()
{
super(log);
}
@Override
protected List<Object> getModules()
{
return ImmutableList.<Object>of(
new RealtimeModule(),
new Module()
{
@Override
public void configure(Binder binder)
{
binder.bind(DataSegmentPusher.class).to(NoopDataSegmentPusher.class).in(LazySingleton.class);
binder.bind(DataSegmentAnnouncer.class).to(NoopDataSegmentAnnouncer.class).in(LazySingleton.class);
binder.bind(InventoryView.class).to(NoopInventoryView.class).in(LazySingleton.class);
binder.bind(ServerView.class).to(NoopServerView.class).in(LazySingleton.class);
}
}
);
}
private static class NoopServerView implements ServerView
{
@Override
public void registerServerCallback(
Executor exec, ServerCallback callback
)
{
// do nothing
}
@Override
public void registerSegmentCallback(
Executor exec, SegmentCallback callback
)
{
// do nothing
}
}
private static class NoopInventoryView implements InventoryView
{
@Override
public DruidServer getInventoryValue(String string)
{
return null;
}
@Override
public Iterable<DruidServer> getInventory()
{
return ImmutableList.of();
}
}
private static class NoopDataSegmentPusher implements DataSegmentPusher
{
@Override
public String getPathForHadoop(String dataSource)
{
return dataSource;
}
@Override
public DataSegment push(File file, DataSegment segment) throws IOException
{
return segment;
}
}
private static class NoopDataSegmentAnnouncer implements DataSegmentAnnouncer
{
@Override
public void announceSegment(DataSegment segment) throws IOException
{
// do nothing
}
@Override
public void unannounceSegment(DataSegment segment) throws IOException
{
// do nothing
}
@Override
public void announceSegments(Iterable<DataSegment> segments) throws IOException
{
// do nothing
}
@Override
public void unannounceSegments(Iterable<DataSegment> segments) throws IOException
{
// do nothing
}
}
}