/**
* 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;
import java.io.IOException;
import org.apache.drill.common.config.DrillConfig;
import org.apache.drill.common.logical.LogicalPlan;
import org.apache.drill.common.types.TypeProtos.MajorType;
import org.apache.drill.exec.coord.DrillbitEndpointSerDe;
import org.apache.drill.exec.physical.PhysicalPlan;
import org.apache.drill.exec.physical.base.FragmentLeaf;
import org.apache.drill.exec.physical.base.FragmentRoot;
import org.apache.drill.exec.physical.base.PhysicalOperator;
import org.apache.drill.exec.physical.base.PhysicalOperatorUtil;
import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint;
import org.apache.drill.exec.record.MajorTypeSerDe;
import org.apache.drill.exec.server.options.OptionList;
import org.apache.drill.exec.store.StoragePluginRegistry;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.InjectableValues;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectReader;
import com.fasterxml.jackson.databind.module.SimpleModule;
public class PhysicalPlanReader {
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(PhysicalPlanReader.class);
private final ObjectReader physicalPlanReader;
private final ObjectMapper mapper;
private final ObjectReader operatorReader;
private final ObjectReader logicalPlanReader;
public PhysicalPlanReader(DrillConfig config, ObjectMapper mapper, final DrillbitEndpoint endpoint,
final StoragePluginRegistry pluginRegistry) {
// Endpoint serializer/deserializer.
SimpleModule deserModule = new SimpleModule("PhysicalOperatorModule") //
.addSerializer(DrillbitEndpoint.class, new DrillbitEndpointSerDe.Se()) //
.addDeserializer(DrillbitEndpoint.class, new DrillbitEndpointSerDe.De()) //
.addSerializer(MajorType.class, new MajorTypeSerDe.Se())
.addDeserializer(MajorType.class, new MajorTypeSerDe.De());
mapper.registerModule(deserModule);
mapper.registerSubtypes(PhysicalOperatorUtil.getSubTypes(config));
InjectableValues injectables = new InjectableValues.Std() //
.addValue(StoragePluginRegistry.class, pluginRegistry) //
.addValue(DrillbitEndpoint.class, endpoint); //
this.mapper = mapper;
this.physicalPlanReader = mapper.reader(PhysicalPlan.class).with(injectables);
this.operatorReader = mapper.reader(PhysicalOperator.class).with(injectables);
this.logicalPlanReader = mapper.reader(LogicalPlan.class).with(injectables);
}
// TODO - we do not want to storage engine registry generated here in production, this was created to keep old
// tests passing, this constructor should be removed and the tests should be updated to use the contstructor
// that takes a storage engine registry
@Deprecated
public PhysicalPlanReader(DrillConfig config, ObjectMapper mapper, final DrillbitEndpoint endpoint) {
this(config, mapper, endpoint, null);
}
public String writeJson(OptionList list) throws JsonProcessingException{
return mapper.writeValueAsString(list);
}
public String writeJson(PhysicalOperator op) throws JsonProcessingException{
return mapper.writeValueAsString(op);
}
public PhysicalPlan readPhysicalPlan(String json) throws JsonProcessingException, IOException {
logger.debug("Reading physical plan {}", json);
return physicalPlanReader.readValue(json);
}
public FragmentRoot readFragmentOperator(String json) throws JsonProcessingException, IOException {
logger.debug("Attempting to read {}", json);
PhysicalOperator op = operatorReader.readValue(json);
if(op instanceof FragmentLeaf){
return (FragmentRoot) op;
}else{
throw new UnsupportedOperationException(String.format("The provided json fragment doesn't have a FragmentRoot as its root operator. The operator was %s.", op.getClass().getCanonicalName()));
}
}
public LogicalPlan readLogicalPlan(String json) throws JsonProcessingException, IOException{
logger.debug("Reading logical plan {}", json);
return logicalPlanReader.readValue(json);
}
}