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docs: Add ingestion from GCS sample (#2211)
* docs: Add ingestion from GCS Java sample * docs: Add ingestion from GCS sample * docs: Add test for GCS ingestion * docs: Move topicName declaration to satisfy style check * docs: Update bucket for Cloud Storage ingestion sample test
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samples/snippets/src/main/java/pubsub/CreateTopicWithCloudStorageIngestionExample.java
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| /* | ||
| * Copyright 2024 Google LLC | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| package pubsub; | ||
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| // [START pubsub_create_topic_with_cloud_storage_ingestion] | ||
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| import com.google.cloud.pubsub.v1.TopicAdminClient; | ||
| import com.google.protobuf.util.Timestamps; | ||
| import com.google.pubsub.v1.IngestionDataSourceSettings; | ||
| import com.google.pubsub.v1.Topic; | ||
| import com.google.pubsub.v1.TopicName; | ||
| import java.io.IOException; | ||
| import java.text.ParseException; | ||
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| public class CreateTopicWithCloudStorageIngestionExample { | ||
| public static void main(String... args) throws Exception { | ||
| // TODO(developer): Replace these variables before running the sample. | ||
| String projectId = "your-project-id"; | ||
| String topicId = "your-topic-id"; | ||
| // Cloud Storage ingestion settings. | ||
| // bucket and inputFormat are required arguments. | ||
| String bucket = "your-bucket"; | ||
| String inputFormat = "text"; | ||
| String textDelimiter = "\n"; | ||
| String matchGlob = "**.txt"; | ||
| String minimumObjectCreateTime = "YYYY-MM-DDThh:mm:ssZ"; | ||
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| createTopicWithCloudStorageIngestionExample( | ||
| projectId, topicId, bucket, inputFormat, textDelimiter, matchGlob, minimumObjectCreateTime); | ||
| } | ||
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| public static void createTopicWithCloudStorageIngestionExample( | ||
| String projectId, | ||
| String topicId, | ||
| String bucket, | ||
| String inputFormat, | ||
| String textDelimiter, | ||
| String matchGlob, | ||
| String minimumObjectCreateTime) | ||
| throws IOException { | ||
| try (TopicAdminClient topicAdminClient = TopicAdminClient.create()) { | ||
| IngestionDataSourceSettings.CloudStorage.Builder cloudStorageBuilder = | ||
| IngestionDataSourceSettings.CloudStorage.newBuilder().setBucket(bucket); | ||
| switch (inputFormat) { | ||
| case "text": | ||
| cloudStorageBuilder.setTextFormat( | ||
| IngestionDataSourceSettings.CloudStorage.TextFormat.newBuilder() | ||
| .setDelimiter(textDelimiter) | ||
| .build()); | ||
| break; | ||
| case "avro": | ||
| cloudStorageBuilder.setAvroFormat( | ||
| IngestionDataSourceSettings.CloudStorage.AvroFormat.getDefaultInstance()); | ||
| break; | ||
| case "pubsub_avro": | ||
| cloudStorageBuilder.setPubsubAvroFormat( | ||
| IngestionDataSourceSettings.CloudStorage.PubSubAvroFormat.getDefaultInstance()); | ||
| break; | ||
| default: | ||
| throw new IllegalArgumentException( | ||
| "inputFormat must be in ('text', 'avro', 'pubsub_avro'); got value: " + inputFormat); | ||
| } | ||
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| if (matchGlob != null && !matchGlob.isEmpty()) { | ||
| cloudStorageBuilder.setMatchGlob(matchGlob); | ||
| } | ||
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| if (minimumObjectCreateTime != null && !minimumObjectCreateTime.isEmpty()) { | ||
| try { | ||
| cloudStorageBuilder.setMinimumObjectCreateTime(Timestamps.parse(minimumObjectCreateTime)); | ||
| } catch (ParseException e) { | ||
| System.err.println("Unable to parse timestamp: " + minimumObjectCreateTime); | ||
| } | ||
| } | ||
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| IngestionDataSourceSettings ingestionDataSourceSettings = | ||
| IngestionDataSourceSettings.newBuilder() | ||
| .setCloudStorage(cloudStorageBuilder.build()) | ||
| .build(); | ||
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| TopicName topicName = TopicName.of(projectId, topicId); | ||
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| Topic topic = | ||
| topicAdminClient.createTopic( | ||
| Topic.newBuilder() | ||
| .setName(topicName.toString()) | ||
| .setIngestionDataSourceSettings(ingestionDataSourceSettings) | ||
| .build()); | ||
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| System.out.println( | ||
| "Created topic with Cloud Storage ingestion settings: " + topic.getAllFields()); | ||
| } | ||
| } | ||
| } | ||
| // [END pubsub_create_topic_with_cloud_storage_ingestion] |
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