/*
* 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.guice;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.Lists;
import com.google.inject.Injector;
import com.google.inject.Key;
import com.google.inject.Module;
import com.metamx.common.ISE;
import io.druid.guice.annotations.Json;
import io.druid.guice.annotations.Smile;
import io.druid.initialization.DruidModule;
import java.util.Collections;
import java.util.List;
/**
*/
public class ModuleList
{
private final Injector baseInjector;
private final ObjectMapper jsonMapper;
private final ObjectMapper smileMapper;
private final List<Module> modules;
public ModuleList(Injector baseInjector)
{
this.baseInjector = baseInjector;
this.jsonMapper = baseInjector.getInstance(Key.get(ObjectMapper.class, Json.class));
this.smileMapper = baseInjector.getInstance(Key.get(ObjectMapper.class, Smile.class));
this.modules = Lists.newArrayList();
}
public List<Module> getModules()
{
return Collections.unmodifiableList(modules);
}
public void addModule(Object input)
{
if (input instanceof DruidModule) {
baseInjector.injectMembers(input);
modules.add(registerJacksonModules(((DruidModule) input)));
} else if (input instanceof Module) {
baseInjector.injectMembers(input);
modules.add((Module) input);
} else if (input instanceof Class) {
if (DruidModule.class.isAssignableFrom((Class) input)) {
modules.add(registerJacksonModules(baseInjector.getInstance((Class<? extends DruidModule>) input)));
} else if (Module.class.isAssignableFrom((Class) input)) {
modules.add(baseInjector.getInstance((Class<? extends Module>) input));
return;
} else {
throw new ISE("Class[%s] does not implement %s", input.getClass(), Module.class);
}
} else {
throw new ISE("Unknown module type[%s]", input.getClass());
}
}
public void addModules(Object... object)
{
for (Object o : object) {
addModule(o);
}
}
private DruidModule registerJacksonModules(DruidModule module)
{
for (com.fasterxml.jackson.databind.Module jacksonModule : module.getJacksonModules()) {
jsonMapper.registerModule(jacksonModule);
smileMapper.registerModule(jacksonModule);
}
return module;
}
}