/
ConfigureConnectionPool.java
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/
ConfigureConnectionPool.java
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/*
* Copyright 2021 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 com.example.bigtable;
// [START bigtable_configure_connection_pool]
import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
import com.google.cloud.bigtable.data.v2.BigtableDataClient;
import com.google.cloud.bigtable.data.v2.BigtableDataSettings;
import com.google.cloud.bigtable.data.v2.stub.EnhancedBigtableStubSettings;
import java.io.IOException;
public class ConfigureConnectionPool {
public static void configureConnectionPool(String projectId, String instanceId) {
// String projectId = "my-project-id";
// String instanceId = "my-instance-id";
BigtableDataSettings.Builder settingsBuilder = BigtableDataSettings.newBuilder()
.setProjectId(projectId)
.setInstanceId(instanceId);
settingsBuilder.stubSettings()
.setTransportChannelProvider(
EnhancedBigtableStubSettings.defaultGrpcTransportProviderBuilder()
.setPoolSize(10)
.build());
BigtableDataSettings settings = settingsBuilder.build();
try (BigtableDataClient dataClient = BigtableDataClient.create(settings)) {
InstantiatingGrpcChannelProvider provider =
(InstantiatingGrpcChannelProvider) settings.getStubSettings()
.getTransportChannelProvider();
int poolSize = provider.toBuilder().getPoolSize();
System.out.println(String.format("Connected with pool size of %d", poolSize));
} catch (IOException e) {
System.out.println("Error during ConfigureConnectionPool: \n" + e.toString());
}
}
}
// [END bigtable_configure_connection_pool]