/*
* 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.facebook.presto.execution.resourceGroups;
import com.facebook.presto.execution.QueryManagerConfig;
import com.facebook.presto.spi.resourceGroups.ResourceGroup;
import com.facebook.presto.spi.resourceGroups.ResourceGroupConfigurationManager;
import com.facebook.presto.spi.resourceGroups.ResourceGroupConfigurationManagerContext;
import com.facebook.presto.spi.resourceGroups.ResourceGroupConfigurationManagerFactory;
import com.facebook.presto.spi.resourceGroups.ResourceGroupId;
import com.facebook.presto.spi.resourceGroups.ResourceGroupSelector;
import com.facebook.presto.spi.resourceGroups.SelectionContext;
import com.google.common.collect.ImmutableList;
import javax.inject.Inject;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import static com.google.common.base.Preconditions.checkArgument;
public class LegacyResourceGroupConfigurationManagerFactory
implements ResourceGroupConfigurationManagerFactory
{
public static final String LEGACY_RESOURCE_GROUP_MANAGER = "legacy";
private static final ResourceGroupId GLOBAL = new ResourceGroupId("global");
private final int maxRunning;
private final int maxQueued;
@Inject
public LegacyResourceGroupConfigurationManagerFactory(QueryManagerConfig config)
{
maxRunning = config.getMaxConcurrentQueries();
maxQueued = config.getMaxQueuedQueries();
}
@Override
public String getName()
{
return LEGACY_RESOURCE_GROUP_MANAGER;
}
@Override
public ResourceGroupConfigurationManager create(Map<String, String> config, ResourceGroupConfigurationManagerContext context)
{
return new LegacyResourceGroupConfigurationManager();
}
public class LegacyResourceGroupConfigurationManager
implements ResourceGroupConfigurationManager
{
@Override
public void configure(ResourceGroup group, SelectionContext context)
{
checkArgument(group.getId().equals(GLOBAL), "Unexpected resource group: %s", group.getId());
group.setMaxQueuedQueries(maxQueued);
group.setMaxRunningQueries(maxRunning);
}
@Override
public List<ResourceGroupSelector> getSelectors()
{
return ImmutableList.of(context -> Optional.of(GLOBAL));
}
}
}