| /* |
| * 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.store.mapr.db; |
| |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import com.fasterxml.jackson.annotation.JsonIgnore; |
| import org.apache.drill.common.exceptions.ExecutionSetupException; |
| import org.apache.drill.common.expression.SchemaPath; |
| import org.apache.drill.common.logical.StoragePluginConfig; |
| import org.apache.drill.exec.physical.base.AbstractDbSubScan; |
| import org.apache.drill.exec.physical.base.PhysicalOperator; |
| import org.apache.drill.exec.physical.base.PhysicalVisitor; |
| import org.apache.drill.exec.record.metadata.TupleMetadata; |
| import org.apache.drill.exec.store.StoragePluginRegistry; |
| |
| import com.fasterxml.jackson.annotation.JacksonInject; |
| import com.fasterxml.jackson.annotation.JsonCreator; |
| import com.fasterxml.jackson.annotation.JsonProperty; |
| import com.fasterxml.jackson.annotation.JsonTypeName; |
| import org.apache.drill.shaded.guava.com.google.common.base.Preconditions; |
| |
| // Class containing information for reading a single HBase region |
| @JsonTypeName("maprdb-sub-scan") |
| |
| public class MapRDBSubScan extends AbstractDbSubScan { |
| |
| public static final String OPERATOR_TYPE = "MAPRDB_SUB_SCAN"; |
| |
| private final MapRDBFormatPlugin formatPlugin; |
| private final List<MapRDBSubScanSpec> regionScanSpecList; |
| private final List<SchemaPath> columns; |
| private final int maxRecordsToRead; |
| private final String tableType; |
| private final TupleMetadata schema; |
| |
| @JsonCreator |
| public MapRDBSubScan(@JacksonInject StoragePluginRegistry engineRegistry, |
| @JsonProperty("userName") String userName, |
| @JsonProperty("formatPluginConfig") MapRDBFormatPluginConfig formatPluginConfig, |
| @JsonProperty("storageConfig") StoragePluginConfig storageConfig, |
| @JsonProperty("regionScanSpecList") List<MapRDBSubScanSpec> regionScanSpecList, |
| @JsonProperty("columns") List<SchemaPath> columns, |
| @JsonProperty("maxRecordsToRead") int maxRecordsToRead, |
| @JsonProperty("tableType") String tableType, |
| @JsonProperty("schema") TupleMetadata schema) throws ExecutionSetupException { |
| this(userName, |
| engineRegistry.resolveFormat(storageConfig, formatPluginConfig, MapRDBFormatPlugin.class), |
| regionScanSpecList, |
| columns, |
| maxRecordsToRead, |
| tableType, |
| schema); |
| } |
| |
| public MapRDBSubScan(String userName, MapRDBFormatPlugin formatPlugin, |
| List<MapRDBSubScanSpec> maprSubScanSpecs, List<SchemaPath> columns, String tableType, TupleMetadata schema) { |
| this(userName, formatPlugin, maprSubScanSpecs, columns, -1, tableType, schema); |
| } |
| |
| public MapRDBSubScan(String userName, MapRDBFormatPlugin formatPlugin, |
| List<MapRDBSubScanSpec> maprSubScanSpecs, List<SchemaPath> columns, int maxRecordsToRead, String tableType, TupleMetadata schema) { |
| super(userName); |
| this.formatPlugin = formatPlugin; |
| this.regionScanSpecList = maprSubScanSpecs; |
| this.columns = columns; |
| this.maxRecordsToRead = maxRecordsToRead; |
| this.tableType = tableType; |
| this.schema = schema; |
| } |
| |
| |
| @JsonProperty("formatPluginConfig") |
| public MapRDBFormatPluginConfig getFormatPluginConfig() { |
| return formatPlugin.getConfig(); |
| } |
| |
| @JsonProperty("storageConfig") |
| public StoragePluginConfig getStorageConfig(){ |
| return formatPlugin.getStorageConfig(); |
| } |
| |
| @JsonProperty("regionScanSpecList") |
| public List<MapRDBSubScanSpec> getRegionScanSpecList() { |
| return regionScanSpecList; |
| } |
| |
| @JsonProperty("columns") |
| public List<SchemaPath> getColumns() { |
| return columns; |
| } |
| |
| @JsonProperty("maxRecordsToRead") |
| public int getMaxRecordsToRead() { |
| return maxRecordsToRead; |
| } |
| |
| @JsonProperty("tableType") |
| public String getTableType() { |
| return tableType; |
| } |
| |
| @JsonProperty("schema") |
| public TupleMetadata getSchema() { |
| return schema; |
| } |
| |
| @Override |
| public boolean isExecutable() { |
| return false; |
| } |
| |
| @Override |
| public <T, X, E extends Throwable> T accept(PhysicalVisitor<T, X, E> physicalVisitor, X value) throws E { |
| return physicalVisitor.visitSubScan(this, value); |
| } |
| |
| @Override |
| public PhysicalOperator getNewWithChildren(List<PhysicalOperator> children) { |
| Preconditions.checkArgument(children.isEmpty()); |
| return new MapRDBSubScan(getUserName(), formatPlugin, regionScanSpecList, columns, tableType, schema); |
| } |
| |
| @Override |
| public Iterator<PhysicalOperator> iterator() { |
| return Collections.emptyIterator(); |
| } |
| |
| @Override |
| public String getOperatorType() { |
| return OPERATOR_TYPE; |
| } |
| |
| @JsonIgnore |
| public MapRDBFormatPlugin getFormatPlugin() { |
| return formatPlugin; |
| } |
| |
| } |