org.apache.drill.exec.store.hive.HiveDrillNativeParquetRowGroupScan.java Source code

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Here is the source code for org.apache.drill.exec.store.hive.HiveDrillNativeParquetRowGroupScan.java

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/*
 * 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.hive;

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 org.apache.drill.exec.store.parquet.ParquetReaderConfig;
import org.apache.drill.shaded.guava.com.google.common.base.Preconditions;
import org.apache.drill.common.exceptions.ExecutionSetupException;
import org.apache.drill.common.expression.LogicalExpression;
import org.apache.drill.common.expression.SchemaPath;
import org.apache.drill.exec.physical.base.PhysicalOperator;
import org.apache.drill.exec.proto.UserBitShared.CoreOperatorType;
import org.apache.drill.exec.store.StoragePluginRegistry;
import org.apache.drill.exec.store.parquet.AbstractParquetRowGroupScan;
import org.apache.drill.exec.store.parquet.RowGroupReadEntry;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hive.ql.io.parquet.ProjectionPusher;
import org.apache.hadoop.mapred.JobConf;

import java.io.IOException;
import java.util.List;
import java.util.Map;

@JsonTypeName("hive-drill-native-parquet-row-group-scan")
public class HiveDrillNativeParquetRowGroupScan extends AbstractParquetRowGroupScan {

    private final HiveStoragePlugin hiveStoragePlugin;
    private final HiveStoragePluginConfig hiveStoragePluginConfig;
    private final HivePartitionHolder hivePartitionHolder;
    private final Map<String, String> confProperties;

    @JsonCreator
    public HiveDrillNativeParquetRowGroupScan(@JacksonInject StoragePluginRegistry registry,
            @JsonProperty("userName") String userName,
            @JsonProperty("hiveStoragePluginConfig") HiveStoragePluginConfig hiveStoragePluginConfig,
            @JsonProperty("rowGroupReadEntries") List<RowGroupReadEntry> rowGroupReadEntries,
            @JsonProperty("columns") List<SchemaPath> columns,
            @JsonProperty("hivePartitionHolder") HivePartitionHolder hivePartitionHolder,
            @JsonProperty("confProperties") Map<String, String> confProperties,
            @JsonProperty("readerConfig") ParquetReaderConfig readerConfig,
            @JsonProperty("filter") LogicalExpression filter) throws ExecutionSetupException {
        this(userName, (HiveStoragePlugin) registry.getPlugin(hiveStoragePluginConfig), rowGroupReadEntries,
                columns, hivePartitionHolder, confProperties, readerConfig, filter);
    }

    public HiveDrillNativeParquetRowGroupScan(String userName, HiveStoragePlugin hiveStoragePlugin,
            List<RowGroupReadEntry> rowGroupReadEntries, List<SchemaPath> columns,
            HivePartitionHolder hivePartitionHolder, Map<String, String> confProperties,
            ParquetReaderConfig readerConfig, LogicalExpression filter) {
        super(userName, rowGroupReadEntries, columns, readerConfig, filter);
        this.hiveStoragePlugin = Preconditions.checkNotNull(hiveStoragePlugin,
                "Could not find format config for the given configuration");
        this.hiveStoragePluginConfig = hiveStoragePlugin.getConfig();
        this.hivePartitionHolder = hivePartitionHolder;
        this.confProperties = confProperties;
    }

    @JsonProperty
    public HiveStoragePluginConfig getHiveStoragePluginConfig() {
        return hiveStoragePluginConfig;
    }

    @JsonProperty
    public HivePartitionHolder getHivePartitionHolder() {
        return hivePartitionHolder;
    }

    @JsonProperty
    public Map<String, String> getConfProperties() {
        return confProperties;
    }

    @JsonIgnore
    public HiveStoragePlugin getHiveStoragePlugin() {
        return hiveStoragePlugin;
    }

    @Override
    public PhysicalOperator getNewWithChildren(List<PhysicalOperator> children) {
        Preconditions.checkArgument(children.isEmpty());
        return new HiveDrillNativeParquetRowGroupScan(getUserName(), hiveStoragePlugin, rowGroupReadEntries,
                columns, hivePartitionHolder, confProperties, readerConfig, filter);
    }

    @Override
    public int getOperatorType() {
        return CoreOperatorType.HIVE_DRILL_NATIVE_PARQUET_ROW_GROUP_SCAN_VALUE;
    }

    @Override
    public AbstractParquetRowGroupScan copy(List<SchemaPath> columns) {
        return new HiveDrillNativeParquetRowGroupScan(getUserName(), hiveStoragePlugin, rowGroupReadEntries,
                columns, hivePartitionHolder, confProperties, readerConfig, filter);
    }

    @Override
    public Configuration getFsConf(RowGroupReadEntry rowGroupReadEntry) throws IOException {
        Path path = rowGroupReadEntry.getPath().getParent();
        return new ProjectionPusher().pushProjectionsAndFilters(
                new JobConf(HiveUtilities.generateHiveConf(hiveStoragePlugin.getHiveConf(), confProperties)),
                path.getParent());
    }

    @Override
    public boolean supportsFileImplicitColumns() {
        return false;
    }

    @Override
    public List<String> getPartitionValues(RowGroupReadEntry rowGroupReadEntry) {
        return hivePartitionHolder.get(rowGroupReadEntry.getPath());
    }
}