io.druid.cli.CliRealtimeExample Maven / Gradle / Ivy
/*
* Druid - a distributed column store.
* Copyright 2012 - 2015 Metamarkets Group Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.druid.cli;
import com.google.common.collect.ImmutableList;
import com.google.inject.Binder;
import com.google.inject.Module;
import com.google.inject.name.Names;
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 getModules()
{
return ImmutableList.of(
new RealtimeModule(),
new Module()
{
@Override
public void configure(Binder binder)
{
binder.bindConstant().annotatedWith(Names.named("serviceName")).to("druid/realtime");
binder.bindConstant().annotatedWith(Names.named("servicePort")).to(8084);
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 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 segments) throws IOException
{
// do nothing
}
@Override
public void unannounceSegments(Iterable segments) throws IOException
{
// do nothing
}
}
}