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A module that is everything required to understands Druid Segments
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.druid.guice;
import com.google.common.base.Supplier;
import com.google.inject.Binder;
import com.google.inject.Module;
import com.google.inject.Provides;
import org.apache.druid.common.config.ConfigManager;
import org.apache.druid.common.config.ConfigManagerConfig;
import org.apache.druid.common.config.JacksonConfigManager;
import org.apache.druid.java.util.common.lifecycle.Lifecycle;
import org.apache.druid.metadata.MetadataStorageConnector;
import org.apache.druid.metadata.MetadataStorageTablesConfig;
/**
*/
public class JacksonConfigManagerModule implements Module
{
@Override
public void configure(Binder binder)
{
JsonConfigProvider.bind(binder, "druid.manager.config", ConfigManagerConfig.class);
binder.bind(JacksonConfigManager.class).in(LazySingleton.class);
}
@Provides @ManageLifecycle
public ConfigManager getConfigManager(
final MetadataStorageConnector dbConnector,
final Supplier dbTables,
final Supplier config,
final Lifecycle lifecycle
)
{
lifecycle.addHandler(
new Lifecycle.Handler()
{
@Override
public void start()
{
dbConnector.createConfigTable();
}
@Override
public void stop()
{
}
}
);
return new ConfigManager(dbConnector, dbTables, config);
}
}