| /* |
| * 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.common.config; |
| |
| import java.util.Set; |
| |
| import com.fasterxml.jackson.databind.ser.impl.SimpleFilterProvider; |
| import org.apache.drill.common.expression.LogicalExpression; |
| import org.apache.drill.common.expression.SchemaPath; |
| import org.apache.drill.common.logical.FormatPluginConfigBase; |
| import org.apache.drill.common.logical.StoragePluginConfigBase; |
| import org.apache.drill.common.logical.data.LogicalOperatorBase; |
| import org.apache.drill.common.scanner.persistence.ScanResult; |
| |
| import com.fasterxml.jackson.core.JsonGenerator; |
| import com.fasterxml.jackson.core.JsonParser.Feature; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.SerializationFeature; |
| import com.fasterxml.jackson.databind.module.SimpleModule; |
| |
| |
| public class LogicalPlanPersistence { |
| private final ObjectMapper mapper; |
| |
| public LogicalPlanPersistence(DrillConfig conf, ScanResult scanResult) { |
| this(conf, scanResult, new ObjectMapper()); |
| } |
| |
| public LogicalPlanPersistence(DrillConfig conf, ScanResult scanResult, ObjectMapper mapper) { |
| this.mapper = mapper; |
| |
| SimpleModule deserModule = new SimpleModule("LogicalExpressionDeserializationModule") |
| .addDeserializer(LogicalExpression.class, new LogicalExpression.De(conf)) |
| .addDeserializer(SchemaPath.class, new SchemaPath.De()); |
| |
| mapper.registerModule(deserModule); |
| mapper.enable(SerializationFeature.INDENT_OUTPUT); |
| mapper.configure(Feature.ALLOW_UNQUOTED_FIELD_NAMES, true); |
| mapper.configure(JsonGenerator.Feature.QUOTE_FIELD_NAMES, true); |
| mapper.configure(Feature.ALLOW_COMMENTS, true); |
| mapper.setFilterProvider(new SimpleFilterProvider().setFailOnUnknownId(false)); |
| registerSubtypes(LogicalOperatorBase.getSubTypes(scanResult)); |
| registerSubtypes(StoragePluginConfigBase.getSubTypes(scanResult)); |
| registerSubtypes(FormatPluginConfigBase.getSubTypes(scanResult)); |
| } |
| |
| public ObjectMapper getMapper() { |
| return mapper; |
| } |
| |
| private <T> void registerSubtypes(Set<Class<? extends T>> types) { |
| for (Class<? extends T> type : types) { |
| mapper.registerSubtypes(type); |
| } |
| } |
| } |