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Add Hive connector procedure call to create empty partition
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presto-hive/src/main/java/com/facebook/presto/hive/CreateEmptyPartitionProcedure.java
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| /* | ||
| * Licensed 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 com.facebook.presto.hive; | ||
|
|
||
| import com.facebook.presto.hive.LocationService.WriteInfo; | ||
| import com.facebook.presto.hive.PartitionUpdate.UpdateMode; | ||
| import com.facebook.presto.hive.metastore.ExtendedHiveMetastore; | ||
| import com.facebook.presto.spi.ConnectorSession; | ||
| import com.facebook.presto.spi.PrestoException; | ||
| import com.facebook.presto.spi.procedure.Procedure; | ||
| import com.facebook.presto.spi.procedure.Procedure.Argument; | ||
| import com.google.common.collect.ImmutableList; | ||
| import io.airlift.json.JsonCodec; | ||
| import io.airlift.slice.Slice; | ||
| import io.airlift.slice.Slices; | ||
| import org.apache.hadoop.hive.common.FileUtils; | ||
|
|
||
| import javax.inject.Inject; | ||
| import javax.inject.Provider; | ||
|
|
||
| import java.lang.invoke.MethodHandle; | ||
| import java.util.List; | ||
| import java.util.Objects; | ||
| import java.util.Optional; | ||
| import java.util.function.Supplier; | ||
|
|
||
| import static com.facebook.presto.spi.StandardErrorCode.ALREADY_EXISTS; | ||
| import static com.facebook.presto.spi.StandardErrorCode.INVALID_PROCEDURE_ARGUMENT; | ||
| import static com.facebook.presto.spi.block.MethodHandleUtil.methodHandle; | ||
| import static com.facebook.presto.spi.type.StandardTypes.VARCHAR; | ||
| import static com.google.common.collect.ImmutableList.toImmutableList; | ||
| import static java.util.Objects.requireNonNull; | ||
|
|
||
| public class CreateEmptyPartitionProcedure | ||
| implements Provider<Procedure> | ||
| { | ||
| private static final MethodHandle CREATE_EMPTY_PARTITION = methodHandle( | ||
| CreateEmptyPartitionProcedure.class, | ||
| "createEmptyPartition", | ||
| ConnectorSession.class, | ||
| String.class, | ||
| String.class, | ||
| List.class, | ||
| List.class); | ||
|
|
||
| private final Supplier<TransactionalMetadata> hiveMetadataFactory; | ||
| private final ExtendedHiveMetastore metastore; | ||
| private final LocationService locationService; | ||
| private final JsonCodec<PartitionUpdate> partitionUpdateJsonCodec; | ||
|
|
||
| @Inject | ||
| public CreateEmptyPartitionProcedure(Supplier<TransactionalMetadata> hiveMetadataFactory, ExtendedHiveMetastore metastore, LocationService locationService, JsonCodec<PartitionUpdate> partitionUpdateCodec) | ||
| { | ||
| this.hiveMetadataFactory = requireNonNull(hiveMetadataFactory, "hiveMetadataFactory is null"); | ||
| this.metastore = requireNonNull(metastore, "metastore is null"); | ||
| this.locationService = requireNonNull(locationService, "locationService is null"); | ||
| this.partitionUpdateJsonCodec = requireNonNull(partitionUpdateCodec, "partitionUpdateCodec is null"); | ||
| } | ||
|
|
||
| @Override | ||
| public Procedure get() | ||
| { | ||
| return new Procedure( | ||
| "system", | ||
| "create_empty_partition", | ||
| ImmutableList.of( | ||
| new Argument("schema", VARCHAR), | ||
| new Argument("table", VARCHAR), | ||
| new Argument("partitionColumnNames", "array(varchar)"), | ||
| new Argument("partitionValues", "array(varchar)")), | ||
| CREATE_EMPTY_PARTITION.bindTo(this)); | ||
| } | ||
|
|
||
| public void createEmptyPartition(ConnectorSession session, String schema, String table, List<Object> partitionColumnNames, List<Object> partitionValues) | ||
| { | ||
| TransactionalMetadata hiveMetadata = hiveMetadataFactory.get(); | ||
|
|
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| HiveInsertTableHandle hiveInsertTableHandle = (HiveInsertTableHandle) hiveMetadata.beginInsert(session, new HiveTableHandle(schema, table)); | ||
|
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| List<String> actualPartitionColumnNames = hiveInsertTableHandle.getInputColumns().stream() | ||
| .filter(HiveColumnHandle::isPartitionKey) | ||
| .map(HiveColumnHandle::getName) | ||
| .collect(toImmutableList()); | ||
| if (!Objects.equals(partitionColumnNames, actualPartitionColumnNames)) { | ||
| throw new PrestoException(INVALID_PROCEDURE_ARGUMENT, "input partition column names doesn't match actual partition column names"); | ||
| } | ||
|
|
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| List<String> partitionStringValues = partitionValues.stream() | ||
| .map(String.class::cast) | ||
| .collect(toImmutableList()); | ||
|
|
||
| if (metastore.getPartition(schema, table, partitionStringValues).isPresent()) { | ||
| throw new PrestoException(ALREADY_EXISTS, "Partition already exists"); | ||
| } | ||
| String partitionName = FileUtils.makePartName(actualPartitionColumnNames, partitionStringValues); | ||
|
|
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| WriteInfo writeInfo = locationService.getPartitionWriteInfo(hiveInsertTableHandle.getLocationHandle(), Optional.empty(), partitionName); | ||
| Slice serializedPartitionUpdate = Slices.wrappedBuffer( | ||
| partitionUpdateJsonCodec.toJsonBytes( | ||
| new PartitionUpdate( | ||
| partitionName, | ||
| UpdateMode.NEW, | ||
| writeInfo.getWritePath(), | ||
| writeInfo.getTargetPath(), | ||
| ImmutableList.of(), | ||
| 0, | ||
| 0, | ||
| 0))); | ||
|
|
||
| hiveMetadata.finishInsert( | ||
| session, | ||
| hiveInsertTableHandle, | ||
| ImmutableList.of(serializedPartitionUpdate), | ||
| ImmutableList.of()); | ||
| hiveMetadata.commit(); | ||
| } | ||
| } |
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33 changes: 33 additions & 0 deletions
33
presto-hive/src/main/java/com/facebook/presto/hive/HiveProcedureModule.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /* | ||
| * Licensed 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 com.facebook.presto.hive; | ||
|
|
||
| import com.facebook.presto.spi.procedure.Procedure; | ||
| import com.google.inject.Binder; | ||
| import com.google.inject.Module; | ||
| import com.google.inject.Scopes; | ||
| import com.google.inject.multibindings.Multibinder; | ||
|
|
||
| import static com.google.inject.multibindings.Multibinder.newSetBinder; | ||
|
|
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| public class HiveProcedureModule | ||
| implements Module | ||
| { | ||
| @Override | ||
| public void configure(Binder binder) | ||
| { | ||
| Multibinder<Procedure> procedures = newSetBinder(binder, Procedure.class); | ||
| procedures.addBinding().toProvider(CreateEmptyPartitionProcedure.class).in(Scopes.SINGLETON); | ||
| } | ||
| } |
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