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CommitAvroSchemaExample.java
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CommitAvroSchemaExample.java
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/*
* Copyright 2023 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.
*/
package pubsub;
// [START pubsub_commit_avro_schema]
import com.google.api.gax.rpc.NotFoundException;
import com.google.cloud.pubsub.v1.SchemaServiceClient;
import com.google.pubsub.v1.ProjectName;
import com.google.pubsub.v1.Schema;
import com.google.pubsub.v1.SchemaName;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
public class CommitAvroSchemaExample {
public static void main(String... args) throws Exception {
// TODO(developer): Replace these variables before running the sample.
String projectId = "your-project-id";
String schemaId = "your-schema-id";
String avscFile = "path/to/an/avro/schema/file/(.avsc)/formatted/in/json";
commitAvroSchemaExample(projectId, schemaId, avscFile);
}
public static Schema commitAvroSchemaExample(String projectId, String schemaId, String avscFile)
throws IOException {
ProjectName projectName = ProjectName.of(projectId);
SchemaName schemaName = SchemaName.of(projectId, schemaId);
// Read an Avro schema file formatted in JSON as a string.
String avscSource = new String(Files.readAllBytes(Paths.get(avscFile)));
try (SchemaServiceClient schemaServiceClient = SchemaServiceClient.create()) {
Schema schema =
schemaServiceClient.commitSchema(
schemaName.toString(),
Schema.newBuilder()
.setName(schemaName.toString())
.setType(Schema.Type.AVRO)
.setDefinition(avscSource)
.build());
System.out.println("Committed a schema using an Avro schema:\n" + schema);
return schema;
} catch (NotFoundException e) {
System.out.println(schemaName + "does not exist.");
return null;
}
}
}
// [END pubsub_commit_avro_schema]