/**
* 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.Iterator;
import java.util.List;
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.AbstractBase;
import org.apache.drill.exec.physical.base.PhysicalOperator;
import org.apache.drill.exec.physical.base.PhysicalVisitor;
import org.apache.drill.exec.physical.base.SubScan;
import org.apache.drill.exec.store.StoragePluginRegistry;
import org.apache.drill.exec.store.dfs.FileSystemPlugin;
import com.fasterxml.jackson.annotation.JacksonInject;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonTypeName;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableSet;
// Class containing information for reading a single HBase region
@JsonTypeName("maprdb-sub-scan")
public class MapRDBSubScan extends AbstractBase implements SubScan {
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(MapRDBSubScan.class);
@JsonProperty
public final StoragePluginConfig storageConfig;
@JsonIgnore
private final MapRDBFormatPluginConfig formatPluginConfig;
private final FileSystemPlugin storagePlugin;
private final List<MapRDBSubScanSpec> regionScanSpecList;
private final List<SchemaPath> columns;
private final String tableType;
private final MapRDBFormatPlugin formatPlugin;
@JsonCreator
public MapRDBSubScan(@JacksonInject StoragePluginRegistry registry,
@JsonProperty("userName") String userName,
@JsonProperty("formatPluginConfig") MapRDBFormatPluginConfig formatPluginConfig,
@JsonProperty("storageConfig") StoragePluginConfig storage,
@JsonProperty("regionScanSpecList") List<MapRDBSubScanSpec> regionScanSpecList,
@JsonProperty("columns") List<SchemaPath> columns,
@JsonProperty("tableType") String tableType) throws ExecutionSetupException {
this(userName, formatPluginConfig,
(FileSystemPlugin) registry.getPlugin(storage),
storage, regionScanSpecList, columns, tableType);
}
public MapRDBSubScan(String userName, MapRDBFormatPluginConfig formatPluginConfig, FileSystemPlugin storagePlugin, StoragePluginConfig storageConfig,
List<MapRDBSubScanSpec> maprSubScanSpecs, List<SchemaPath> columns, String tableType) {
super(userName);
this.storageConfig = storageConfig;
this.storagePlugin = storagePlugin;
this.formatPluginConfig = formatPluginConfig;
this.formatPlugin = (MapRDBFormatPlugin) storagePlugin.getFormatPlugin(formatPluginConfig);
this.regionScanSpecList = maprSubScanSpecs;
this.columns = columns;
this.tableType = tableType;
}
public List<MapRDBSubScanSpec> getRegionScanSpecList() {
return regionScanSpecList;
}
public List<SchemaPath> getColumns() {
return columns;
}
@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(), formatPluginConfig, storagePlugin, storageConfig, regionScanSpecList, columns, tableType);
}
@Override
public Iterator<PhysicalOperator> iterator() {
return ImmutableSet.<PhysicalOperator>of().iterator();
}
@Override
public int getOperatorType() {
return 1001;
}
public String getTableType() {
return tableType;
}
public MapRDBFormatPluginConfig getFormatPluginConfig() {
return formatPluginConfig;
}
@JsonIgnore
public MapRDBFormatPlugin getFormatPlugin() {
return formatPlugin;
}
}