igorbernstein2 commented on code in PR #24015: URL: https://github.com/apache/beam/pull/24015#discussion_r1123328414
########## sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigtable/BigtableConfigTranslator.java: ########## @@ -0,0 +1,378 @@ +/* + * 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.bigtable; + +import com.google.api.gax.batching.BatchingSettings; +import com.google.api.gax.batching.FlowControlSettings; +import com.google.api.gax.core.FixedCredentialsProvider; +import com.google.api.gax.grpc.ChannelPoolSettings; +import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider; +import com.google.api.gax.retrying.RetrySettings; +import com.google.api.gax.rpc.FixedHeaderProvider; +import com.google.api.gax.rpc.StubSettings; +import com.google.auth.Credentials; +import com.google.auth.oauth2.GoogleCredentials; +import com.google.auth.oauth2.ServiceAccountJwtAccessCredentials; +import com.google.cloud.bigtable.config.BigtableOptions; +import com.google.cloud.bigtable.config.CredentialOptions; +import com.google.cloud.bigtable.data.v2.BigtableDataSettings; +import com.google.cloud.bigtable.data.v2.stub.BigtableBatchingCallSettings; +import io.grpc.internal.GrpcUtil; +import java.io.FileInputStream; +import java.io.IOException; +import java.security.GeneralSecurityException; +import java.security.KeyStore; +import java.security.PrivateKey; +import java.util.Objects; +import org.apache.beam.sdk.extensions.gcp.auth.CredentialFactory; +import org.apache.beam.sdk.extensions.gcp.auth.NoopCredentialFactory; +import org.apache.beam.sdk.extensions.gcp.options.GcpOptions; +import org.apache.beam.sdk.options.PipelineOptions; +import org.apache.beam.sdk.options.PipelineOptionsFactory; +import org.apache.beam.sdk.options.ValueProvider; +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.checkerframework.checker.nullness.qual.NonNull; +import org.threeten.bp.Duration; + +/** + * Helper class to translate {@link BigtableConfig}, {@link BigtableReadOptions}, {@link + * BigtableWriteOptions} and {@link PipelineOptions} to Bigtable Veneer settings. + * + * <p>Also translate {@link BigtableOptions} to {@link BigtableConfig} for backward compatibility. + * If the values are set on {@link BigtableConfig} directly, ignore the settings in {@link + * BigtableOptions}. + */ +@SuppressWarnings({ + "nullness" // TODO(https://github.com/apache/beam/issues/20497) +}) +class BigtableConfigTranslator { + + /** Translate BigtableConfig and BigtableReadOptions to Veneer settings. */ + static BigtableDataSettings translateReadToVeneerSettings( + @NonNull BigtableConfig config, + @NonNull BigtableReadOptions options, + @NonNull PipelineOptions pipelineOptions) + throws IOException { + BigtableDataSettings.Builder settings = buildBigtableDataSettings(config, pipelineOptions); + return configureReadSettings(settings, options); + } + + /** Translate BigtableConfig and BigtableWriteOptions to Veneer settings. */ + static BigtableDataSettings translateWriteToVeneerSettings( + @NonNull BigtableConfig config, + @NonNull BigtableWriteOptions options, + @NonNull PipelineOptions pipelineOptions) + throws IOException { + + BigtableDataSettings.Builder settings = buildBigtableDataSettings(config, pipelineOptions); + return configureWriteSettings(settings, options); + } + + /** Translate BigtableConfig and BigtableWriteOptions to Veneer settings. */ + static BigtableDataSettings translateToVeneerSettings( + @NonNull BigtableConfig config, @NonNull PipelineOptions pipelineOptions) throws IOException { + + return buildBigtableDataSettings(config, pipelineOptions).build(); + } + + private static BigtableDataSettings.Builder buildBigtableDataSettings( + BigtableConfig config, PipelineOptions pipelineOptions) throws IOException { + BigtableDataSettings.Builder dataBuilder; + boolean emulator = false; + if (!Strings.isNullOrEmpty(config.getEmulatorHost())) { + emulator = true; + String hostAndPort = config.getEmulatorHost(); + try { + int lastIndexOfCol = hostAndPort.lastIndexOf(":"); + int port = Integer.parseInt(hostAndPort.substring(lastIndexOfCol + 1)); + dataBuilder = + BigtableDataSettings.newBuilderForEmulator( + hostAndPort.substring(0, lastIndexOfCol), port); + } catch (NumberFormatException | IndexOutOfBoundsException ex) { + throw new RuntimeException("Invalid host/port in BigtableConfig " + hostAndPort); + } + } else { + dataBuilder = BigtableDataSettings.newBuilder(); + } + + // Configure target + dataBuilder + .setProjectId(Objects.requireNonNull(config.getProjectId().get())) + .setInstanceId(Objects.requireNonNull(config.getInstanceId().get())); + if (config.getAppProfileId() != null + && !Strings.isNullOrEmpty(config.getAppProfileId().get())) { + dataBuilder.setAppProfileId(Objects.requireNonNull(config.getAppProfileId().get())); + } + + // Skip resetting the credentials if it's connected to an emulator + if (!emulator) { + if (pipelineOptions.as(GcpOptions.class).getGcpCredential() != null) { + dataBuilder + .stubSettings() + .setCredentialsProvider( + FixedCredentialsProvider.create( + (pipelineOptions.as(GcpOptions.class)).getGcpCredential())); + } + + if (config.getCredentialFactory() != null) { + CredentialFactory credentialFactory = config.getCredentialFactory(); + try { + dataBuilder + .stubSettings() + .setCredentialsProvider( + FixedCredentialsProvider.create(credentialFactory.getCredential())); + } catch (GeneralSecurityException e) { + throw new RuntimeException("Exception getting credentials ", e); + } + } + } + + configureChannelPool(dataBuilder.stubSettings(), config); + configureHeaderProvider(dataBuilder.stubSettings(), pipelineOptions); + + return dataBuilder; + } + + private static void configureHeaderProvider( + StubSettings.Builder<?, ?> stubSettings, PipelineOptions pipelineOptions) { + + ImmutableMap.Builder<String, String> headersBuilder = + ImmutableMap.<String, String>builder() + .put( + GrpcUtil.USER_AGENT_KEY.name(), + Objects.requireNonNull(pipelineOptions.getUserAgent())); + + stubSettings.setHeaderProvider(FixedHeaderProvider.create(headersBuilder.build())); + } + + private static void configureChannelPool( + StubSettings.Builder<?, ?> stubSettings, BigtableConfig config) { + if (config.getChannelCount() != null + && stubSettings.getTransportChannelProvider() instanceof InstantiatingGrpcChannelProvider) { Review Comment: Lets avoid adding unnecessary defensive code...it makes maintaining this harder in the future -- This is an automated message from the Apache Git Service. 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