/**
* 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.planner.sql;
import java.util.Collections;
import java.util.Iterator;
import org.apache.drill.common.logical.PlanProperties;
import org.apache.drill.common.logical.PlanProperties.Generator.ResultMode;
import org.apache.drill.common.logical.PlanProperties.PlanPropertiesBuilder;
import org.apache.drill.common.logical.PlanProperties.PlanType;
import org.apache.drill.exec.ops.QueryContext;
import org.apache.drill.exec.physical.PhysicalPlan;
import org.apache.drill.exec.physical.config.Screen;
import org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler;
import org.apache.drill.exec.planner.sql.handlers.SimpleCommandResult;
import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint;
import org.apache.drill.exec.store.direct.DirectGroupScan;
import org.apache.drill.exec.store.pojo.PojoRecordReader;
public class DirectPlan {
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(DirectPlan.class);
public static PhysicalPlan createDirectPlan(QueryContext context, boolean result, String message){
return createDirectPlan(context, new SimpleCommandResult(result, message));
}
@SuppressWarnings("unchecked")
public static <T> PhysicalPlan createDirectPlan(QueryContext context, T obj){
Iterator<T> iter = (Iterator<T>) Collections.singleton(obj).iterator();
return createDirectPlan(context.getCurrentEndpoint(), iter, (Class<T>) obj.getClass());
}
public static <T> PhysicalPlan createDirectPlan(DrillbitEndpoint endpoint, Iterator<T> iterator, Class<T> clazz){
PojoRecordReader<T> reader = new PojoRecordReader<T>(clazz, iterator);
DirectGroupScan scan = new DirectGroupScan(reader);
Screen screen = new Screen(scan, endpoint);
PlanPropertiesBuilder propsBuilder = PlanProperties.builder();
propsBuilder.type(PlanType.APACHE_DRILL_PHYSICAL);
propsBuilder.version(1);
propsBuilder.resultMode(ResultMode.EXEC);
propsBuilder.generator(DirectPlan.class.getSimpleName(), "");
return new PhysicalPlan(propsBuilder.build(), DefaultSqlHandler.getPops(screen));
}
}