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/**
* 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.drill.exec.server.options;
import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
import java.util.concurrent.ConcurrentMap;
import org.apache.commons.collections.IteratorUtils;
import org.apache.drill.common.config.DrillConfig;
import org.apache.drill.exec.ExecConstants;
import org.apache.drill.exec.cache.DistributedCache.CacheConfig;
import org.apache.drill.exec.compile.QueryClassLoader;
import org.apache.drill.exec.planner.physical.PlannerSettings;
import org.apache.drill.exec.server.options.OptionValue.OptionType;
import org.apache.drill.exec.store.sys.PStore;
import org.apache.drill.exec.store.sys.PStoreConfig;
import org.apache.drill.exec.store.sys.PStoreProvider;
import org.eigenbase.sql.SqlLiteral;
import com.google.common.collect.Maps;
public class SystemOptionManager implements OptionManager{
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(SystemOptionManager.class);
public static final CacheConfig<String, OptionValue> OPTION_CACHE = CacheConfig //
.newBuilder(OptionValue.class) //
.name("sys.options") //
.jackson()
.build();
private final OptionValidator[] VALIDATORS = {
PlannerSettings.EXCHANGE,
PlannerSettings.HASHAGG,
PlannerSettings.STREAMAGG,
PlannerSettings.HASHJOIN,
PlannerSettings.MERGEJOIN,
PlannerSettings.MULTIPHASE,
PlannerSettings.BROADCAST,
PlannerSettings.BROADCAST_THRESHOLD,
PlannerSettings.JOIN_ROW_COUNT_ESTIMATE_FACTOR,
PlannerSettings.PRODUCER_CONSUMER,
PlannerSettings.PRODUCER_CONSUMER_QUEUE_SIZE,
PlannerSettings.HASH_SINGLE_KEY,
ExecConstants.OUTPUT_FORMAT_VALIDATOR,
ExecConstants.PARQUET_BLOCK_SIZE_VALIDATOR,
ExecConstants.PARQUET_RECORD_READER_IMPLEMENTATION_VALIDATOR,
ExecConstants.JSON_READER_ALL_TEXT_MODE_VALIDATOR,
ExecConstants.SLICE_TARGET_OPTION,
ExecConstants.AFFINITY_FACTOR,
ExecConstants.MAX_WIDTH_GLOBAL,
ExecConstants.MAX_WIDTH_PER_NODE,
ExecConstants.ENABLE_QUEUE,
ExecConstants.LARGE_QUEUE_SIZE,
ExecConstants.QUEUE_THRESHOLD_SIZE,
ExecConstants.QUEUE_TIMEOUT,
ExecConstants.SMALL_QUEUE_SIZE,
ExecConstants.MIN_HASH_TABLE_SIZE,
ExecConstants.MAX_HASH_TABLE_SIZE,
ExecConstants.ENABLE_MEMORY_ESTIMATION,
ExecConstants.MAX_QUERY_MEMORY_PER_NODE,
ExecConstants.NON_BLOCKING_OPERATORS_MEMORY,
ExecConstants.HASH_JOIN_TABLE_FACTOR,
ExecConstants.HASH_AGG_TABLE_FACTOR,
ExecConstants.AVERAGE_FIELD_WIDTH,
QueryClassLoader.JAVA_COMPILER_VALIDATOR,
QueryClassLoader.JAVA_COMPILER_JANINO_MAXSIZE,
QueryClassLoader.JAVA_COMPILER_DEBUG,
ExecConstants.ENABLE_VERBOSE_ERRORS
};
public final PStoreConfig<OptionValue> config;
private PStore<OptionValue> options;
private SystemOptionAdmin admin;
private final ConcurrentMap<String, OptionValidator> knownOptions = Maps.newConcurrentMap();
private final PStoreProvider provider;
public SystemOptionManager(DrillConfig config, PStoreProvider provider){
this.provider = provider;
this.config = PStoreConfig //
.newJacksonBuilder(config.getMapper(), OptionValue.class) //
.name("sys.options") //
.build();
}
public SystemOptionManager init() throws IOException{
this.options = provider.getPStore(config);
this.admin = new SystemOptionAdmin();
return this;
}
private class Iter implements Iterator<OptionValue>{
private Iterator<Map.Entry<String, OptionValue>> inner;
public Iter(Iterator<Map.Entry<String, OptionValue>> inner){
this.inner = inner;
}
@Override
public boolean hasNext() {
return inner.hasNext();
}
@Override
public OptionValue next() {
return inner.next().getValue();
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
}
@Override
public Iterator<OptionValue> iterator() {
return new Iter(options.iterator());
}
@Override
public OptionValue getOption(String name) {
return options.get(name);
}
@Override
public void setOption(OptionValue value) {
assert value.type == OptionType.SYSTEM;
admin.validate(value);
options.put(value.name, value);
}
@Override
public void setOption(String name, SqlLiteral literal, OptionType type) {
assert type == OptionValue.OptionType.SYSTEM;
OptionValue v = admin.validate(name, literal);
v.type = type;
options.put(name, v);
}
@Override
public OptionList getOptionList() {
return (OptionList) IteratorUtils.toList(iterator());
}
@Override
public OptionManager getSystemManager() {
return this;
}
@Override
public OptionAdmin getAdmin() {
return admin;
}
private class SystemOptionAdmin implements OptionAdmin{
public SystemOptionAdmin(){
for(OptionValidator v : VALIDATORS){
knownOptions.put(v.getOptionName(), v);
options.putIfAbsent(v.getOptionName(), v.getDefault());
}
}
@Override
public void registerOptionType(OptionValidator validator) {
if(null != knownOptions.putIfAbsent(validator.getOptionName(), validator) ){
throw new IllegalArgumentException("Only one option is allowed to be registered with name: " + validator.getOptionName());
}
}
@Override
public void validate(OptionValue v) throws SetOptionException {
OptionValidator validator = knownOptions.get(v.name);
if(validator == null) throw new SetOptionException("Unknown option " + v.name);
validator.validate(v);
}
@Override
public OptionValue validate(String name, SqlLiteral value) throws SetOptionException {
OptionValidator validator = knownOptions.get(name);
if(validator == null) throw new SetOptionException("Unknown option: " + name);
return validator.validate(value);
}
}
}
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