ahmedabu98 commented on code in PR #23988: URL: https://github.com/apache/beam/pull/23988#discussion_r1042661523
########## sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/providers/BigQueryStorageWriteApiSchemaTransformProvider.java: ########## @@ -0,0 +1,361 @@ +/* + * 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.beam.sdk.io.gcp.bigquery.providers; + +import static org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkArgument; +import static org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkNotNull; + +import com.google.api.services.bigquery.model.TableSchema; +import com.google.auto.service.AutoService; +import com.google.auto.value.AutoValue; +import java.util.Collections; +import java.util.List; +import java.util.Map; +import javax.annotation.Nullable; +import org.apache.beam.sdk.annotations.Experimental; +import org.apache.beam.sdk.annotations.Experimental.Kind; +import org.apache.beam.sdk.io.gcp.bigquery.BigQueryHelpers; +import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO; +import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO.Write.CreateDisposition; +import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO.Write.Method; +import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO.Write.WriteDisposition; +import org.apache.beam.sdk.io.gcp.bigquery.BigQueryServices; +import org.apache.beam.sdk.io.gcp.bigquery.BigQueryUtils; +import org.apache.beam.sdk.io.gcp.bigquery.WriteResult; +import org.apache.beam.sdk.io.gcp.bigquery.providers.BigQueryStorageWriteApiSchemaTransformProvider.BigQueryStorageWriteApiSchemaTransformConfiguration; +import org.apache.beam.sdk.schemas.AutoValueSchema; +import org.apache.beam.sdk.schemas.Schema; +import org.apache.beam.sdk.schemas.Schema.Field; +import org.apache.beam.sdk.schemas.Schema.FieldType; +import org.apache.beam.sdk.schemas.annotations.DefaultSchema; +import org.apache.beam.sdk.schemas.transforms.SchemaTransform; +import org.apache.beam.sdk.schemas.transforms.SchemaTransformProvider; +import org.apache.beam.sdk.schemas.transforms.TypedSchemaTransformProvider; +import org.apache.beam.sdk.transforms.MapElements; +import org.apache.beam.sdk.transforms.PTransform; +import org.apache.beam.sdk.values.PCollection; +import org.apache.beam.sdk.values.PCollectionRowTuple; +import org.apache.beam.sdk.values.Row; +import org.apache.beam.sdk.values.TypeDescriptor; +import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.annotations.VisibleForTesting; +import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Strings; +import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableMap; +import org.joda.time.Duration; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * An implementation of {@link TypedSchemaTransformProvider} for BigQuery Storage Write API jobs + * configured via {@link BigQueryStorageWriteApiSchemaTransformConfiguration}. + * + * <p><b>Internal only:</b> This class is actively being worked on, and it will likely change. We + * provide no backwards compatibility guarantees, and it should not be implemented outside the Beam + * repository. + */ +@SuppressWarnings({ + "nullness" // TODO(https://github.com/apache/beam/issues/20497) +}) +@Experimental(Kind.SCHEMAS) +@AutoService(SchemaTransformProvider.class) +public class BigQueryStorageWriteApiSchemaTransformProvider + extends TypedSchemaTransformProvider<BigQueryStorageWriteApiSchemaTransformConfiguration> { + private static final Logger LOG = LoggerFactory.getLogger(BigQueryStorageWriteApiSchemaTransformProvider.class); + + private static final String INPUT_ROWS_TAG = "INPUT_ROWS"; + private static final String OUTPUT_ERRORS_TAG = "ERROR_ROWS"; + + @Override + protected Class<BigQueryStorageWriteApiSchemaTransformConfiguration> configurationClass() { + return BigQueryStorageWriteApiSchemaTransformConfiguration.class; + } + + @Override + protected SchemaTransform from( + BigQueryStorageWriteApiSchemaTransformConfiguration configuration) { + return new BigQueryStorageWriteApiSchemaTransform(configuration); + } + + @Override + public String identifier() { + return String.format("beam:transform:org.apache.beam:bigquery_storage_write:v1"); + } + + @Override + public List<String> inputCollectionNames() { + return Collections.singletonList(INPUT_ROWS_TAG); + } + + @Override + public List<String> outputCollectionNames() { + return Collections.singletonList(OUTPUT_ERRORS_TAG); + } + + /** Configuration for writing to BigQuery with Storage Write API. */ + @DefaultSchema(AutoValueSchema.class) + @AutoValue + public abstract static class BigQueryStorageWriteApiSchemaTransformConfiguration { + static final Map<String, CreateDisposition> CREATE_DISPOSITIONS = + ImmutableMap.<String, CreateDisposition>builder() + .put(CreateDisposition.CREATE_IF_NEEDED.name(), CreateDisposition.CREATE_IF_NEEDED) + .put(CreateDisposition.CREATE_NEVER.name(), CreateDisposition.CREATE_NEVER) + .build(); + + static final Map<String, WriteDisposition> WRITE_DISPOSITIONS = + ImmutableMap.<String, WriteDisposition>builder() + .put(WriteDisposition.WRITE_TRUNCATE.name(), WriteDisposition.WRITE_TRUNCATE) + .put(WriteDisposition.WRITE_EMPTY.name(), WriteDisposition.WRITE_EMPTY) + .put(WriteDisposition.WRITE_APPEND.name(), WriteDisposition.WRITE_APPEND) + .build(); + + public void validate() { + String invalidConfigMessage = "Invalid BigQuery Storage Write configuration: "; + + // validate output table spec + checkArgument( + !Strings.isNullOrEmpty(this.getOutputTable()), + invalidConfigMessage + "Table spec for a BigQuery Write must be specified."); + checkNotNull(BigQueryHelpers.parseTableSpec(this.getOutputTable())); + + // validate create and write dispositions + CreateDisposition createDisposition = null; + if (!Strings.isNullOrEmpty(this.getCreateDisposition())) { + checkArgument( + CREATE_DISPOSITIONS.get(this.getCreateDisposition().toUpperCase()) != null, + invalidConfigMessage + + "Invalid create disposition was specified. Available dispositions are: ", + CREATE_DISPOSITIONS.keySet()); + createDisposition = CREATE_DISPOSITIONS.get(this.getCreateDisposition().toUpperCase()); + } + if (!Strings.isNullOrEmpty(this.getWriteDisposition())) { + checkNotNull( + WRITE_DISPOSITIONS.get(this.getWriteDisposition().toUpperCase()), + invalidConfigMessage + + "Invalid write disposition was specified. Available dispositions are: ", + WRITE_DISPOSITIONS.keySet()); + } + + // validate schema + if (!Strings.isNullOrEmpty(this.getJsonSchema())) { + // check if a TableSchema can be deserialized from the input schema string + checkNotNull(BigQueryHelpers.fromJsonString(this.getJsonSchema(), TableSchema.class)); + } else if (this.getUseBeamSchema() == null || !this.getUseBeamSchema()) { + // if no schema is provided, create disposition CREATE_NEVER has to be specified. + checkArgument( + createDisposition == CreateDisposition.CREATE_NEVER, + invalidConfigMessage + + "Create disposition is CREATE_IF_NEEDED, but no schema was provided."); + } + + // validation checks for streaming writes + checkArgument( + this.getNumStorageWriteApiStreams() == null || this.getNumStorageWriteApiStreams() > 0, + invalidConfigMessage + "When set, numStorageWriteApiStreams must be > 0, but was: %s", + this.getNumStorageWriteApiStreams()); + checkArgument( + this.getNumFileShards() == null || this.getNumFileShards() > 0, + invalidConfigMessage + "When set, numFileShards must be > 0, but was: %s", + this.getNumFileShards()); + checkArgument( + this.getTriggeringFrequencySeconds() == null || this.getTriggeringFrequencySeconds() > 0, + invalidConfigMessage + "When set, the trigger frequency must be > 0, but was: %s", + this.getTriggeringFrequencySeconds()); + } + + /** + * Instantiates a {@link BigQueryStorageWriteApiSchemaTransformConfiguration.Builder} instance. + */ + public static Builder builder() { + return new AutoValue_BigQueryStorageWriteApiSchemaTransformProvider_BigQueryStorageWriteApiSchemaTransformConfiguration + .Builder(); + } + + public abstract String getOutputTable(); + + @Nullable + public abstract String getJsonSchema(); + + @Nullable + public abstract Boolean getUseBeamSchema(); + + @Nullable + public abstract String getCreateDisposition(); + + @Nullable + public abstract String getWriteDisposition(); + + @Nullable + public abstract Integer getNumStorageWriteApiStreams(); + + @Nullable + public abstract Integer getNumFileShards(); + + @Nullable + public abstract Integer getTriggeringFrequencySeconds(); + + @Nullable + public abstract Boolean getUseAtLeastOnceSemantics(); + + /** Builder for {@link BigQueryStorageWriteApiSchemaTransformConfiguration}. */ + @AutoValue.Builder + public abstract static class Builder { + public abstract Builder setOutputTable(String tableSpec); + + public abstract Builder setJsonSchema(String jsonSchema); + + public abstract Builder setUseBeamSchema(Boolean useBeamSchema); + + public abstract Builder setCreateDisposition(String createDisposition); + + public abstract Builder setWriteDisposition(String writeDisposition); + + public abstract Builder setNumStorageWriteApiStreams(Integer numStorageWriteApiStreams); + + public abstract Builder setNumFileShards(Integer numFileShards); Review Comment: will do, that sounds better. fyi support was added in #16795 -- This is an automated message from the Apache Git Service. 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