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[FLINK-36077][Connectors/Google PubSub] Implement table api support f…
…or SinkV2
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172 changes: 172 additions & 0 deletions
172
.../src/main/java/org/apache/flink/connector/gcp/pubsub/table/CredentialProviderFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
| /* | ||
| * 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.flink.connector.gcp.pubsub.table; | ||
|
|
||
| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.configuration.ConfigOption; | ||
| import org.apache.flink.util.Preconditions; | ||
| import org.apache.flink.util.StringUtils; | ||
|
|
||
| import com.google.api.gax.core.CredentialsProvider; | ||
| import com.google.api.gax.core.FixedCredentialsProvider; | ||
| import com.google.auth.oauth2.AccessToken; | ||
| import com.google.auth.oauth2.GoogleCredentials; | ||
|
|
||
| import java.io.ByteArrayInputStream; | ||
| import java.io.IOException; | ||
| import java.time.Instant; | ||
| import java.util.Arrays; | ||
| import java.util.Date; | ||
| import java.util.Map; | ||
| import java.util.Optional; | ||
|
|
||
| import static com.google.cloud.pubsub.v1.SubscriptionAdminSettings.defaultCredentialsProviderBuilder; | ||
| import static org.apache.flink.connector.gcp.pubsub.table.PubSubOptions.CREDENTIALS_FIXED_ACCESS_EXPIRATION_EPOCH_MILLIS; | ||
| import static org.apache.flink.connector.gcp.pubsub.table.PubSubOptions.CREDENTIALS_FIXED_ACCESS_TOKEN; | ||
| import static org.apache.flink.connector.gcp.pubsub.table.PubSubOptions.CREDENTIALS_FIXED_JSON; | ||
|
|
||
| /** | ||
| * Factory for creating {@link com.google.api.gax.core.CredentialsProvider} from PubSub Table | ||
| * Options. | ||
| */ | ||
| @Internal | ||
| class CredentialProviderFactory { | ||
| private static final String PUBSUB_AUTH_SCOPES = "https://www.googleapis.com/auth/pubsub"; | ||
| private static final String PUBSUB_AUTH_CLOUD_PLATFORM_SCOPES = | ||
| "https://www.googleapis.com/auth/cloud-platform"; | ||
| private static final String CREDENTIALS_PROVIDER_PREFIX = "credentials-provider."; | ||
|
|
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| public CredentialsProvider createCredentialsProvider( | ||
| CredentialProviderType credentialType, Map<String, String> options) { | ||
| switch (credentialType) { | ||
| case DEFAULT: | ||
| case GOOGLE_CREDENTIALS: | ||
| return defaultCredentialsProviderBuilder().build(); | ||
| case FIXED: | ||
| return FixedCredentialsProvider.create(getFixedCredentialsFromOptions(options)); | ||
| default: | ||
| throw new IllegalArgumentException( | ||
| "Unknown credential provider type: " + credentialType); | ||
| } | ||
| } | ||
|
|
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| private GoogleCredentials getFixedCredentialsFromOptions(Map<String, String> options) { | ||
| Preconditions.checkArgument( | ||
| options != null | ||
| && (extractCredentialProviderOption(options, CREDENTIALS_FIXED_JSON) != null | ||
| || extractCredentialProviderOption( | ||
| options, CREDENTIALS_FIXED_ACCESS_TOKEN) | ||
| != null), | ||
| "Fixed credential provider requires '" | ||
| + CREDENTIALS_FIXED_JSON.key() | ||
| + "' or '" | ||
| + CREDENTIALS_FIXED_ACCESS_TOKEN.key() | ||
| + "' options to be set"); | ||
|
|
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| Optional<GoogleCredentials> jsonCredsOptional = | ||
| Optional.ofNullable( | ||
| extractCredentialProviderOption(options, CREDENTIALS_FIXED_JSON)) | ||
| .map(this::getJsonCredentials); | ||
| Optional<GoogleCredentials> accessTokenCredsOptional = | ||
| Optional.ofNullable( | ||
| extractCredentialProviderOption( | ||
| options, CREDENTIALS_FIXED_ACCESS_TOKEN)) | ||
| .map( | ||
| accessToken -> | ||
| getAccessTokenCredentials( | ||
| accessToken, | ||
| extractCredentialProviderOption( | ||
| options, | ||
| CREDENTIALS_FIXED_ACCESS_EXPIRATION_EPOCH_MILLIS))); | ||
|
|
||
| if (!jsonCredsOptional.isPresent() && !accessTokenCredsOptional.isPresent()) { | ||
| throw new IllegalArgumentException( | ||
| "Fixed credential provider requires '" | ||
| + CREDENTIALS_FIXED_JSON.key() | ||
| + "' or '" | ||
| + CREDENTIALS_FIXED_ACCESS_TOKEN.key() | ||
| + "' options to be set"); | ||
| } | ||
|
|
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| return jsonCredsOptional.orElseGet(accessTokenCredsOptional::get); | ||
| } | ||
|
|
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| private String extractCredentialProviderOption( | ||
| Map<String, String> options, ConfigOption<?> option) { | ||
| Preconditions.checkNotNull(options); | ||
| Preconditions.checkArgument(option.key().startsWith(CREDENTIALS_PROVIDER_PREFIX)); | ||
| return options.get(option.key().substring(CREDENTIALS_PROVIDER_PREFIX.length())); | ||
| } | ||
|
|
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| private GoogleCredentials getJsonCredentials(String credentialsStringJson) { | ||
| Preconditions.checkArgument(!StringUtils.isNullOrWhitespaceOnly(credentialsStringJson)); | ||
|
|
||
| try { | ||
| return GoogleCredentials.fromStream( | ||
| new ByteArrayInputStream(credentialsStringJson.getBytes())); | ||
| } catch (IOException e) { | ||
| throw new IllegalArgumentException( | ||
| "Failed to load Google Credentials from file " + credentialsStringJson, e); | ||
| } | ||
| } | ||
|
|
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| private GoogleCredentials getAccessTokenCredentials( | ||
| String credentialsAccessToken, String credentialsAccessExpirationEpochMillis) { | ||
|
|
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| Preconditions.checkArgument( | ||
| !StringUtils.isNullOrWhitespaceOnly(credentialsAccessToken), | ||
| "Fixed credential provider requires '" | ||
| + CREDENTIALS_FIXED_JSON.key() | ||
| + "' or '" | ||
| + CREDENTIALS_FIXED_ACCESS_TOKEN.key() | ||
| + "' options to be set"); | ||
| Long expirationEpochMillis; | ||
|
|
||
| try { | ||
| expirationEpochMillis = | ||
| StringUtils.isNullOrWhitespaceOnly(credentialsAccessExpirationEpochMillis) | ||
| ? null | ||
| : Long.parseLong(credentialsAccessExpirationEpochMillis); | ||
| } catch (NumberFormatException e) { | ||
| throw new IllegalArgumentException( | ||
| "Failed to parse expiration epoch millis: " | ||
| + credentialsAccessExpirationEpochMillis, | ||
| e); | ||
| } | ||
|
|
||
| return GoogleCredentials.create( | ||
| getAccessTokenFromOptions(credentialsAccessToken, expirationEpochMillis)); | ||
| } | ||
|
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| private AccessToken getAccessTokenFromOptions( | ||
| String credentialsAccessToken, Long credentialsAccessExpirationEpochMillis) { | ||
| AccessToken.Builder builder = | ||
| AccessToken.newBuilder() | ||
| .setTokenValue(credentialsAccessToken) | ||
| .setScopes( | ||
| Arrays.asList( | ||
| PUBSUB_AUTH_CLOUD_PLATFORM_SCOPES, PUBSUB_AUTH_SCOPES)); | ||
| if (credentialsAccessExpirationEpochMillis != null) { | ||
| builder.setExpirationTime( | ||
| Date.from(Instant.ofEpochMilli(credentialsAccessExpirationEpochMillis))); | ||
| } | ||
|
|
||
| return builder.build(); | ||
| } | ||
| } |
46 changes: 46 additions & 0 deletions
46
...sub/src/main/java/org/apache/flink/connector/gcp/pubsub/table/CredentialProviderType.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.flink.connector.gcp.pubsub.table; | ||
|
|
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| import org.apache.flink.annotation.Internal; | ||
|
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| /** GCP Credential provider type. */ | ||
| @Internal | ||
| public enum CredentialProviderType { | ||
|
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| /** Default Google Credential Providers. */ | ||
| DEFAULT("default"), | ||
|
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| /** {@link com.google.api.gax.core.FixedCredentialsProvider} with the provided credentials. */ | ||
| FIXED("fixed"), | ||
|
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| /** {@link com.google.api.gax.core.GoogleCredentialsProvider} with default credentials. */ | ||
| GOOGLE_CREDENTIALS("google-credentials"); | ||
|
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| private final String type; | ||
|
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| CredentialProviderType(String type) { | ||
| this.type = type; | ||
| } | ||
|
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| @Override | ||
| public String toString() { | ||
| return type; | ||
| } | ||
| } |
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