/*
* 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.base.Throwables;
import com.google.inject.Inject;
import com.google.inject.Injector;
import com.metamx.common.lifecycle.Lifecycle;
import com.metamx.common.logger.Logger;
import io.druid.initialization.Initialization;
import io.druid.initialization.LogLevelAdjuster;
import java.util.List;
/**
*/
public abstract class GuiceRunnable implements Runnable
{
private final Logger log;
private Injector baseInjector;
public GuiceRunnable(Logger log)
{
this.log = log;
}
@Inject
public void configure(Injector injector)
{
this.baseInjector = injector;
}
protected abstract List<Object> getModules();
public Injector makeInjector()
{
try {
return Initialization.makeInjectorWithModules(
baseInjector, getModules()
);
}
catch (Exception e) {
throw Throwables.propagate(e);
}
}
public Lifecycle initLifecycle(Injector injector)
{
try {
LogLevelAdjuster.register();
final Lifecycle lifecycle = injector.getInstance(Lifecycle.class);
try {
lifecycle.start();
}
catch (Throwable t) {
log.error(t, "Error when starting up. Failing.");
System.exit(1);
}
return lifecycle;
}
catch (Exception e) {
throw Throwables.propagate(e);
}
}
}