/**
* Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
*
* 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 com.linkedin.pinot.server.starter.helix;
import java.util.Iterator;
import org.apache.commons.configuration.Configuration;
import org.apache.commons.configuration.ConfigurationException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.linkedin.pinot.common.segment.ReadMode;
import com.linkedin.pinot.core.data.manager.config.InstanceDataManagerConfig;
/**
* The config used for HelixInstanceDataManager.
*
*
*/
public class HelixInstanceDataManagerConfig implements InstanceDataManagerConfig {
private static final Logger LOGGER = LoggerFactory.getLogger(HelixInstanceDataManagerConfig.class);
// Average number of values in multi-valued columns in any table in this instance.
// This value is used to allocate initial memory for multi-valued columns in realtime segments in consuming state.
private static final String AVERAGE_MV_COUNT = "realtime.averageMultiValueEntriesPerRow";
private static final String INSTANCE_SEGMENT_METADATA_LOADER_CLASS = "segment.metadata.loader.class";
// Key of instance id
public static final String INSTANCE_ID = "id";
// Key of instance data directory
public static final String INSTANCE_DATA_DIR = "dataDir";
// Key of instance segment tar directory
public static final String INSTANCE_SEGMENT_TAR_DIR = "segmentTarDir";
// Key of segment directory
public static final String INSTANCE_BOOTSTRAP_SEGMENT_DIR = "bootstrap.segment.dir";
// Key of table data directory
public static final String kEY_OF_TABLE_DATA_DIRECTORY = "directory";
// Key of table data directory
public static final String kEY_OF_TABLE_NAME = "name";
// Key of instance level segment read mode
public static final String READ_MODE = "readMode";
// Key of the segment format this server can read
public static final String SEGMENT_FORMAT_VERSION = "segment.format.version";
// Key of whether to enable default columns
private static final String ENABLE_DEFAULT_COLUMNS = "enable.default.columns";
private final static String[] REQUIRED_KEYS = { INSTANCE_ID, INSTANCE_DATA_DIR, READ_MODE };
private Configuration _instanceDataManagerConfiguration = null;
public HelixInstanceDataManagerConfig(Configuration serverConfig) throws ConfigurationException {
_instanceDataManagerConfiguration = serverConfig;
Iterator keysIterator = serverConfig.getKeys();
while (keysIterator.hasNext()) {
String key = (String) keysIterator.next();
LOGGER.info("InstanceDataManagerConfig, key: {} , value: {}", key,
serverConfig.getProperty(key));
}
checkRequiredKeys();
}
private void checkRequiredKeys() throws ConfigurationException {
for (String keyString : REQUIRED_KEYS) {
if (!_instanceDataManagerConfiguration.containsKey(keyString)) {
throw new ConfigurationException("Cannot find required key : " + keyString);
}
}
}
@Override
public Configuration getConfig() {
return _instanceDataManagerConfiguration;
}
@Override
public String getInstanceId() {
return _instanceDataManagerConfiguration.getString(INSTANCE_ID);
}
@Override
public String getInstanceDataDir() {
return _instanceDataManagerConfiguration.getString(INSTANCE_DATA_DIR);
}
@Override
public String getInstanceSegmentTarDir() {
return _instanceDataManagerConfiguration.getString(INSTANCE_SEGMENT_TAR_DIR);
}
@Override
public String getInstanceBootstrapSegmentDir() {
return _instanceDataManagerConfiguration.getString(INSTANCE_BOOTSTRAP_SEGMENT_DIR);
}
@Override
public String getSegmentMetadataLoaderClass() {
return _instanceDataManagerConfiguration.getString(INSTANCE_SEGMENT_METADATA_LOADER_CLASS);
}
@Override
public ReadMode getReadMode() {
return ReadMode.valueOf(_instanceDataManagerConfiguration.getString(READ_MODE));
}
@Override
public String getSegmentFormatVersion() {
return _instanceDataManagerConfiguration.getString(SEGMENT_FORMAT_VERSION);
}
@Override
public boolean isEnableDefaultColumns() {
return _instanceDataManagerConfiguration.getBoolean(ENABLE_DEFAULT_COLUMNS, false);
}
@Override
public String getAvgMultiValueCount() {
return _instanceDataManagerConfiguration.getString(AVERAGE_MV_COUNT, null);
}
@Override
public String toString() {
String configString = "";
configString += "Instance Id: " + getInstanceId();
configString += "\n\tInstance Data Dir: " + getInstanceDataDir();
configString += "\n\tInstance Segment Tar Dir: " + getInstanceSegmentTarDir();
configString += "\n\tBootstrap Segment Dir: " + getInstanceBootstrapSegmentDir();
configString += "\n\tSegment Metadata Loader Clas: " + getSegmentMetadataLoaderClass();
configString += "\n\tRead Mode: " + getReadMode();
configString += "\n\tSegment format version: " + getSegmentFormatVersion();
return configString;
}
}