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GapicSpannerRpc.java
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GapicSpannerRpc.java
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/*
* Copyright 2018 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.google.cloud.spanner.spi.v1;
import static com.google.cloud.spanner.SpannerExceptionFactory.newSpannerException;
import com.google.api.core.NanoClock;
import com.google.api.gax.core.CredentialsProvider;
import com.google.api.gax.core.ExecutorProvider;
import com.google.api.gax.core.GaxProperties;
import com.google.api.gax.grpc.GaxGrpcProperties;
import com.google.api.gax.grpc.GrpcCallContext;
import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
import com.google.api.gax.longrunning.OperationFuture;
import com.google.api.gax.rpc.AlreadyExistsException;
import com.google.api.gax.rpc.ApiClientHeaderProvider;
import com.google.api.gax.rpc.HeaderProvider;
import com.google.api.gax.rpc.InstantiatingWatchdogProvider;
import com.google.api.gax.rpc.OperationCallable;
import com.google.api.gax.rpc.ResponseObserver;
import com.google.api.gax.rpc.StreamController;
import com.google.api.gax.rpc.TransportChannelProvider;
import com.google.api.gax.rpc.WatchdogProvider;
import com.google.api.pathtemplate.PathTemplate;
import com.google.cloud.grpc.GrpcTransportOptions;
import com.google.cloud.spanner.SpannerException;
import com.google.cloud.spanner.SpannerExceptionFactory;
import com.google.cloud.spanner.SpannerOptions;
import com.google.cloud.spanner.SpannerOptions.CallCredentialsProvider;
import com.google.cloud.spanner.admin.database.v1.stub.DatabaseAdminStub;
import com.google.cloud.spanner.admin.database.v1.stub.GrpcDatabaseAdminStub;
import com.google.cloud.spanner.admin.instance.v1.stub.GrpcInstanceAdminStub;
import com.google.cloud.spanner.admin.instance.v1.stub.InstanceAdminStub;
import com.google.cloud.spanner.v1.stub.GrpcSpannerStub;
import com.google.cloud.spanner.v1.stub.SpannerStub;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.MoreObjects;
import com.google.common.base.Preconditions;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import com.google.iam.v1.GetIamPolicyRequest;
import com.google.iam.v1.Policy;
import com.google.iam.v1.SetIamPolicyRequest;
import com.google.iam.v1.TestIamPermissionsRequest;
import com.google.iam.v1.TestIamPermissionsResponse;
import com.google.longrunning.GetOperationRequest;
import com.google.longrunning.Operation;
import com.google.protobuf.Empty;
import com.google.protobuf.FieldMask;
import com.google.spanner.admin.database.v1.CreateDatabaseMetadata;
import com.google.spanner.admin.database.v1.CreateDatabaseRequest;
import com.google.spanner.admin.database.v1.Database;
import com.google.spanner.admin.database.v1.DropDatabaseRequest;
import com.google.spanner.admin.database.v1.GetDatabaseDdlRequest;
import com.google.spanner.admin.database.v1.GetDatabaseRequest;
import com.google.spanner.admin.database.v1.ListDatabasesRequest;
import com.google.spanner.admin.database.v1.ListDatabasesResponse;
import com.google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata;
import com.google.spanner.admin.database.v1.UpdateDatabaseDdlRequest;
import com.google.spanner.admin.instance.v1.CreateInstanceMetadata;
import com.google.spanner.admin.instance.v1.CreateInstanceRequest;
import com.google.spanner.admin.instance.v1.DeleteInstanceRequest;
import com.google.spanner.admin.instance.v1.GetInstanceConfigRequest;
import com.google.spanner.admin.instance.v1.GetInstanceRequest;
import com.google.spanner.admin.instance.v1.Instance;
import com.google.spanner.admin.instance.v1.InstanceConfig;
import com.google.spanner.admin.instance.v1.ListInstanceConfigsRequest;
import com.google.spanner.admin.instance.v1.ListInstanceConfigsResponse;
import com.google.spanner.admin.instance.v1.ListInstancesRequest;
import com.google.spanner.admin.instance.v1.ListInstancesResponse;
import com.google.spanner.admin.instance.v1.UpdateInstanceMetadata;
import com.google.spanner.admin.instance.v1.UpdateInstanceRequest;
import com.google.spanner.v1.BatchCreateSessionsRequest;
import com.google.spanner.v1.BeginTransactionRequest;
import com.google.spanner.v1.CommitRequest;
import com.google.spanner.v1.CommitResponse;
import com.google.spanner.v1.CreateSessionRequest;
import com.google.spanner.v1.DeleteSessionRequest;
import com.google.spanner.v1.ExecuteBatchDmlRequest;
import com.google.spanner.v1.ExecuteBatchDmlResponse;
import com.google.spanner.v1.ExecuteSqlRequest;
import com.google.spanner.v1.PartialResultSet;
import com.google.spanner.v1.PartitionQueryRequest;
import com.google.spanner.v1.PartitionReadRequest;
import com.google.spanner.v1.PartitionResponse;
import com.google.spanner.v1.ReadRequest;
import com.google.spanner.v1.ResultSet;
import com.google.spanner.v1.RollbackRequest;
import com.google.spanner.v1.Session;
import com.google.spanner.v1.Transaction;
import io.grpc.CallCredentials;
import io.grpc.Context;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadFactory;
import javax.annotation.Nullable;
import org.threeten.bp.Duration;
/** Implementation of Cloud Spanner remote calls using Gapic libraries. */
public class GapicSpannerRpc implements SpannerRpc {
/**
* {@link ExecutorProvider} that keeps track of the executors that are created and shuts these
* down when the {@link SpannerRpc} is closed.
*/
private static final class ManagedInstantiatingExecutorProvider implements ExecutorProvider {
private static final int DEFAULT_THREAD_COUNT = 4;
private final List<ScheduledExecutorService> executors = new LinkedList<>();
private final ThreadFactory threadFactory;
private ManagedInstantiatingExecutorProvider(ThreadFactory threadFactory) {
this.threadFactory = threadFactory;
}
@Override
public boolean shouldAutoClose() {
return false;
}
@Override
public ScheduledExecutorService getExecutor() {
ScheduledExecutorService executor =
new ScheduledThreadPoolExecutor(DEFAULT_THREAD_COUNT, threadFactory);
synchronized (this) {
executors.add(executor);
}
return executor;
}
/** Shuts down all executors that have been created by this {@link ExecutorProvider}. */
private synchronized void shutdown() {
for (ScheduledExecutorService executor : executors) {
executor.shutdown();
}
}
}
private static final PathTemplate PROJECT_NAME_TEMPLATE =
PathTemplate.create("projects/{project}");
private static final PathTemplate OPERATION_NAME_TEMPLATE =
PathTemplate.create("{database=projects/*/instances/*/databases/*}/operations/{operation}");
private static final int MAX_MESSAGE_SIZE = 100 * 1024 * 1024;
private static final int MAX_METADATA_SIZE = 32 * 1024; // bytes
private static final String PROPERTY_TIMEOUT_SECONDS =
"com.google.cloud.spanner.watchdogTimeoutSeconds";
private static final String PROPERTY_PERIOD_SECONDS =
"com.google.cloud.spanner.watchdogPeriodSeconds";
private static final int DEFAULT_TIMEOUT_SECONDS = 30 * 60;
private static final int DEFAULT_PERIOD_SECONDS = 10;
private static final int GRPC_KEEPALIVE_SECONDS = 2 * 60;
private final ManagedInstantiatingExecutorProvider executorProvider;
private boolean rpcIsClosed;
private final SpannerStub spannerStub;
private final InstanceAdminStub instanceAdminStub;
private final DatabaseAdminStub databaseAdminStub;
private final String projectId;
private final String projectName;
private final SpannerMetadataProvider metadataProvider;
private final CallCredentialsProvider callCredentialsProvider;
private final Duration waitTimeout =
systemProperty(PROPERTY_TIMEOUT_SECONDS, DEFAULT_TIMEOUT_SECONDS);
private final Duration idleTimeout =
systemProperty(PROPERTY_TIMEOUT_SECONDS, DEFAULT_TIMEOUT_SECONDS);
private final Duration checkInterval =
systemProperty(PROPERTY_PERIOD_SECONDS, DEFAULT_PERIOD_SECONDS);
private final ScheduledExecutorService spannerWatchdog;
public static GapicSpannerRpc create(SpannerOptions options) {
return new GapicSpannerRpc(options);
}
public GapicSpannerRpc(final SpannerOptions options) {
this.projectId = options.getProjectId();
String projectNameStr = PROJECT_NAME_TEMPLATE.instantiate("project", this.projectId);
try {
// Fix use cases where projectName contains special charecters.
// This would happen when projects are under an organization.
projectNameStr = URLDecoder.decode(projectNameStr, StandardCharsets.UTF_8.toString());
} catch (UnsupportedEncodingException e) { // Ignored.
}
this.projectName = projectNameStr;
// create a metadataProvider which combines both internal headers and
// per-method-call extra headers for channelProvider to inject the headers
// for rpc calls
ApiClientHeaderProvider.Builder internalHeaderProviderBuilder =
ApiClientHeaderProvider.newBuilder();
ApiClientHeaderProvider internalHeaderProvider =
internalHeaderProviderBuilder
.setClientLibToken(
options.getClientLibToken(), GaxProperties.getLibraryVersion(options.getClass()))
.setTransportToken(
GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion())
.build();
HeaderProvider mergedHeaderProvider = options.getMergedHeaderProvider(internalHeaderProvider);
this.metadataProvider =
SpannerMetadataProvider.create(
mergedHeaderProvider.getHeaders(),
internalHeaderProviderBuilder.getResourceHeaderKey());
this.callCredentialsProvider = options.getCallCredentialsProvider();
// Create a managed executor provider.
this.executorProvider =
new ManagedInstantiatingExecutorProvider(
new ThreadFactoryBuilder()
.setDaemon(true)
.setNameFormat("Cloud-Spanner-TransportChannel-%d")
.build());
// First check if SpannerOptions provides a TransportChannerProvider. Create one
// with information gathered from SpannerOptions if none is provided
TransportChannelProvider channelProvider =
MoreObjects.firstNonNull(
options.getChannelProvider(),
InstantiatingGrpcChannelProvider.newBuilder()
.setChannelConfigurator(options.getChannelConfigurator())
.setEndpoint(options.getEndpoint())
.setMaxInboundMessageSize(MAX_MESSAGE_SIZE)
.setMaxInboundMetadataSize(MAX_METADATA_SIZE)
.setPoolSize(options.getNumChannels())
.setExecutorProvider(executorProvider)
// Set a keepalive time of 120 seconds to help long running
// commit GRPC calls succeed
.setKeepAliveTime(Duration.ofSeconds(GRPC_KEEPALIVE_SECONDS))
// Then check if SpannerOptions provides an InterceptorProvider. Create a default
// SpannerInterceptorProvider if none is provided
.setInterceptorProvider(
MoreObjects.firstNonNull(
options.getInterceptorProvider(),
SpannerInterceptorProvider.createDefault()))
.setHeaderProvider(mergedHeaderProvider)
.build());
CredentialsProvider credentialsProvider =
GrpcTransportOptions.setUpCredentialsProvider(options);
spannerWatchdog =
Executors.newSingleThreadScheduledExecutor(
new ThreadFactoryBuilder()
.setDaemon(true)
.setNameFormat("Cloud-Spanner-WatchdogProvider-%d")
.build());
WatchdogProvider watchdogProvider =
InstantiatingWatchdogProvider.create()
.withExecutor(spannerWatchdog)
.withCheckInterval(checkInterval)
.withClock(NanoClock.getDefaultClock());
try {
this.spannerStub =
GrpcSpannerStub.create(
options
.getSpannerStubSettings()
.toBuilder()
.setTransportChannelProvider(channelProvider)
.setCredentialsProvider(credentialsProvider)
.setStreamWatchdogProvider(watchdogProvider)
.build());
this.instanceAdminStub =
GrpcInstanceAdminStub.create(
options
.getInstanceAdminStubSettings()
.toBuilder()
.setTransportChannelProvider(channelProvider)
.setCredentialsProvider(credentialsProvider)
.setStreamWatchdogProvider(watchdogProvider)
.build());
this.databaseAdminStub =
GrpcDatabaseAdminStub.create(
options
.getDatabaseAdminStubSettings()
.toBuilder()
.setTransportChannelProvider(channelProvider)
.setCredentialsProvider(credentialsProvider)
.setStreamWatchdogProvider(watchdogProvider)
.build());
} catch (Exception e) {
throw newSpannerException(e);
}
}
@Override
public Paginated<InstanceConfig> listInstanceConfigs(int pageSize, @Nullable String pageToken)
throws SpannerException {
ListInstanceConfigsRequest.Builder requestBuilder =
ListInstanceConfigsRequest.newBuilder().setParent(projectName).setPageSize(pageSize);
if (pageToken != null) {
requestBuilder.setPageToken(pageToken);
}
ListInstanceConfigsRequest request = requestBuilder.build();
GrpcCallContext context = newCallContext(null, projectName);
ListInstanceConfigsResponse response =
get(instanceAdminStub.listInstanceConfigsCallable().futureCall(request, context));
return new Paginated<>(response.getInstanceConfigsList(), response.getNextPageToken());
}
@Override
public InstanceConfig getInstanceConfig(String instanceConfigName) throws SpannerException {
GetInstanceConfigRequest request =
GetInstanceConfigRequest.newBuilder().setName(instanceConfigName).build();
GrpcCallContext context = newCallContext(null, projectName);
return get(instanceAdminStub.getInstanceConfigCallable().futureCall(request, context));
}
@Override
public Paginated<Instance> listInstances(
int pageSize, @Nullable String pageToken, @Nullable String filter) throws SpannerException {
ListInstancesRequest.Builder requestBuilder =
ListInstancesRequest.newBuilder().setParent(projectName).setPageSize(pageSize);
if (pageToken != null) {
requestBuilder.setPageToken(pageToken);
}
if (filter != null) {
requestBuilder.setFilter(filter);
}
ListInstancesRequest request = requestBuilder.build();
GrpcCallContext context = newCallContext(null, projectName);
ListInstancesResponse response =
get(instanceAdminStub.listInstancesCallable().futureCall(request, context));
return new Paginated<>(response.getInstancesList(), response.getNextPageToken());
}
@Override
public OperationFuture<Instance, CreateInstanceMetadata> createInstance(
String parent, String instanceId, Instance instance) throws SpannerException {
CreateInstanceRequest request =
CreateInstanceRequest.newBuilder()
.setParent(parent)
.setInstanceId(instanceId)
.setInstance(instance)
.build();
GrpcCallContext context = newCallContext(null, parent);
return instanceAdminStub.createInstanceOperationCallable().futureCall(request, context);
}
@Override
public OperationFuture<Instance, UpdateInstanceMetadata> updateInstance(
Instance instance, FieldMask fieldMask) throws SpannerException {
UpdateInstanceRequest request =
UpdateInstanceRequest.newBuilder().setInstance(instance).setFieldMask(fieldMask).build();
GrpcCallContext context = newCallContext(null, instance.getName());
return instanceAdminStub.updateInstanceOperationCallable().futureCall(request, context);
}
@Override
public Instance getInstance(String instanceName) throws SpannerException {
GetInstanceRequest request = GetInstanceRequest.newBuilder().setName(instanceName).build();
GrpcCallContext context = newCallContext(null, instanceName);
return get(instanceAdminStub.getInstanceCallable().futureCall(request, context));
}
@Override
public void deleteInstance(String instanceName) throws SpannerException {
DeleteInstanceRequest request =
DeleteInstanceRequest.newBuilder().setName(instanceName).build();
GrpcCallContext context = newCallContext(null, instanceName);
get(instanceAdminStub.deleteInstanceCallable().futureCall(request, context));
}
@Override
public Paginated<Database> listDatabases(
String instanceName, int pageSize, @Nullable String pageToken) throws SpannerException {
ListDatabasesRequest.Builder requestBuilder =
ListDatabasesRequest.newBuilder().setParent(instanceName).setPageSize(pageSize);
if (pageToken != null) {
requestBuilder.setPageToken(pageToken);
}
ListDatabasesRequest request = requestBuilder.build();
GrpcCallContext context = newCallContext(null, instanceName);
ListDatabasesResponse response =
get(databaseAdminStub.listDatabasesCallable().futureCall(request, context));
return new Paginated<>(response.getDatabasesList(), response.getNextPageToken());
}
@Override
public OperationFuture<Database, CreateDatabaseMetadata> createDatabase(
String instanceName, String createDatabaseStatement, Iterable<String> additionalStatements)
throws SpannerException {
CreateDatabaseRequest request =
CreateDatabaseRequest.newBuilder()
.setParent(instanceName)
.setCreateStatement(createDatabaseStatement)
.addAllExtraStatements(additionalStatements)
.build();
GrpcCallContext context = newCallContext(null, instanceName);
return databaseAdminStub.createDatabaseOperationCallable().futureCall(request, context);
}
@Override
public OperationFuture<Empty, UpdateDatabaseDdlMetadata> updateDatabaseDdl(
String databaseName, Iterable<String> updateDatabaseStatements, @Nullable String updateId)
throws SpannerException {
UpdateDatabaseDdlRequest request =
UpdateDatabaseDdlRequest.newBuilder()
.setDatabase(databaseName)
.addAllStatements(updateDatabaseStatements)
.setOperationId(MoreObjects.firstNonNull(updateId, ""))
.build();
GrpcCallContext context = newCallContext(null, databaseName);
OperationCallable<UpdateDatabaseDdlRequest, Empty, UpdateDatabaseDdlMetadata> callable =
databaseAdminStub.updateDatabaseDdlOperationCallable();
OperationFuture<Empty, UpdateDatabaseDdlMetadata> operationFuture =
callable.futureCall(request, context);
try {
operationFuture.getInitialFuture().get();
} catch (InterruptedException e) {
throw newSpannerException(e);
} catch (ExecutionException e) {
Throwable t = e.getCause();
if (t instanceof AlreadyExistsException) {
String operationName =
OPERATION_NAME_TEMPLATE.instantiate("database", databaseName, "operation", updateId);
return callable.resumeFutureCall(operationName, context);
}
}
return operationFuture;
}
@Override
public void dropDatabase(String databaseName) throws SpannerException {
DropDatabaseRequest request =
DropDatabaseRequest.newBuilder().setDatabase(databaseName).build();
GrpcCallContext context = newCallContext(null, databaseName);
get(databaseAdminStub.dropDatabaseCallable().futureCall(request, context));
}
@Override
public Database getDatabase(String databaseName) throws SpannerException {
GetDatabaseRequest request = GetDatabaseRequest.newBuilder().setName(databaseName).build();
GrpcCallContext context = newCallContext(null, databaseName);
return get(databaseAdminStub.getDatabaseCallable().futureCall(request, context));
}
@Override
public List<String> getDatabaseDdl(String databaseName) throws SpannerException {
GetDatabaseDdlRequest request =
GetDatabaseDdlRequest.newBuilder().setDatabase(databaseName).build();
GrpcCallContext context = newCallContext(null, databaseName);
return get(databaseAdminStub.getDatabaseDdlCallable().futureCall(request, context))
.getStatementsList();
}
@Override
public Operation getOperation(String name) throws SpannerException {
GetOperationRequest request = GetOperationRequest.newBuilder().setName(name).build();
GrpcCallContext context = newCallContext(null, name);
return get(
databaseAdminStub.getOperationsStub().getOperationCallable().futureCall(request, context));
}
@Override
public List<Session> batchCreateSessions(
String databaseName,
int sessionCount,
@Nullable Map<String, String> labels,
@Nullable Map<Option, ?> options)
throws SpannerException {
BatchCreateSessionsRequest.Builder requestBuilder =
BatchCreateSessionsRequest.newBuilder()
.setDatabase(databaseName)
.setSessionCount(sessionCount);
if (labels != null && !labels.isEmpty()) {
Session.Builder session = Session.newBuilder().putAllLabels(labels);
requestBuilder.setSessionTemplate(session);
}
BatchCreateSessionsRequest request = requestBuilder.build();
GrpcCallContext context = newCallContext(options, databaseName);
return get(spannerStub.batchCreateSessionsCallable().futureCall(request, context))
.getSessionList();
}
@Override
public Session createSession(
String databaseName, @Nullable Map<String, String> labels, @Nullable Map<Option, ?> options)
throws SpannerException {
CreateSessionRequest.Builder requestBuilder =
CreateSessionRequest.newBuilder().setDatabase(databaseName);
if (labels != null && !labels.isEmpty()) {
Session.Builder session = Session.newBuilder().putAllLabels(labels);
requestBuilder.setSession(session);
}
CreateSessionRequest request = requestBuilder.build();
GrpcCallContext context = newCallContext(options, databaseName);
return get(spannerStub.createSessionCallable().futureCall(request, context));
}
@Override
public void deleteSession(String sessionName, @Nullable Map<Option, ?> options)
throws SpannerException {
DeleteSessionRequest request = DeleteSessionRequest.newBuilder().setName(sessionName).build();
GrpcCallContext context = newCallContext(options, sessionName);
get(spannerStub.deleteSessionCallable().futureCall(request, context));
}
@Override
public StreamingCall read(
ReadRequest request, ResultStreamConsumer consumer, @Nullable Map<Option, ?> options) {
GrpcCallContext context = newCallContext(options, request.getSession());
SpannerResponseObserver responseObserver = new SpannerResponseObserver(consumer);
spannerStub.streamingReadCallable().call(request, responseObserver, context);
final StreamController controller = responseObserver.getController();
return new StreamingCall() {
@Override
public void request(int numMessage) {
controller.request(numMessage);
}
// TODO(hzyi): streamController currently does not support cancel with message. Add
// this in gax and update this method later
@Override
public void cancel(String message) {
controller.cancel();
}
};
}
@Override
public ResultSet executeQuery(ExecuteSqlRequest request, @Nullable Map<Option, ?> options) {
GrpcCallContext context = newCallContext(options, request.getSession());
return get(spannerStub.executeSqlCallable().futureCall(request, context));
}
@Override
public ResultSet executePartitionedDml(
ExecuteSqlRequest request, @Nullable Map<Option, ?> options, Duration timeout) {
GrpcCallContext context = newCallContext(options, request.getSession(), timeout);
return get(spannerStub.executeSqlCallable().futureCall(request, context));
}
@Override
public StreamingCall executeQuery(
ExecuteSqlRequest request, ResultStreamConsumer consumer, @Nullable Map<Option, ?> options) {
GrpcCallContext context = newCallContext(options, request.getSession());
SpannerResponseObserver responseObserver = new SpannerResponseObserver(consumer);
spannerStub.executeStreamingSqlCallable().call(request, responseObserver, context);
final StreamController controller = responseObserver.getController();
return new StreamingCall() {
@Override
public void request(int numMessage) {
controller.request(numMessage);
}
// TODO(hzyi): streamController currently does not support cancel with message. Add
// this in gax and update this method later
@Override
public void cancel(String message) {
controller.cancel();
}
};
}
@Override
public ExecuteBatchDmlResponse executeBatchDml(
ExecuteBatchDmlRequest request, @Nullable Map<Option, ?> options) {
GrpcCallContext context = newCallContext(options, request.getSession());
return get(spannerStub.executeBatchDmlCallable().futureCall(request, context));
}
@Override
public Transaction beginTransaction(
BeginTransactionRequest request, @Nullable Map<Option, ?> options) throws SpannerException {
GrpcCallContext context = newCallContext(options, request.getSession());
return get(spannerStub.beginTransactionCallable().futureCall(request, context));
}
@Override
public CommitResponse commit(CommitRequest commitRequest, @Nullable Map<Option, ?> options)
throws SpannerException {
GrpcCallContext context = newCallContext(options, commitRequest.getSession());
return get(spannerStub.commitCallable().futureCall(commitRequest, context));
}
@Override
public void rollback(RollbackRequest request, @Nullable Map<Option, ?> options)
throws SpannerException {
GrpcCallContext context = newCallContext(options, request.getSession());
get(spannerStub.rollbackCallable().futureCall(request, context));
}
@Override
public PartitionResponse partitionQuery(
PartitionQueryRequest request, @Nullable Map<Option, ?> options) throws SpannerException {
GrpcCallContext context = newCallContext(options, request.getSession());
return get(spannerStub.partitionQueryCallable().futureCall(request, context));
}
@Override
public PartitionResponse partitionRead(
PartitionReadRequest request, @Nullable Map<Option, ?> options) throws SpannerException {
GrpcCallContext context = newCallContext(options, request.getSession());
return get(spannerStub.partitionReadCallable().futureCall(request, context));
}
@Override
public Policy getDatabaseAdminIAMPolicy(String resource) {
GrpcCallContext context = newCallContext(null, resource);
return get(
databaseAdminStub
.getIamPolicyCallable()
.futureCall(GetIamPolicyRequest.newBuilder().setResource(resource).build(), context));
}
@Override
public Policy setDatabaseAdminIAMPolicy(String resource, Policy policy) {
GrpcCallContext context = newCallContext(null, resource);
return get(
databaseAdminStub
.setIamPolicyCallable()
.futureCall(
SetIamPolicyRequest.newBuilder().setResource(resource).setPolicy(policy).build(),
context));
}
@Override
public TestIamPermissionsResponse testDatabaseAdminIAMPermissions(
String resource, Iterable<String> permissions) {
GrpcCallContext context = newCallContext(null, resource);
return get(
databaseAdminStub
.testIamPermissionsCallable()
.futureCall(
TestIamPermissionsRequest.newBuilder()
.setResource(resource)
.addAllPermissions(permissions)
.build(),
context));
}
@Override
public Policy getInstanceAdminIAMPolicy(String resource) {
GrpcCallContext context = newCallContext(null, resource);
return get(
instanceAdminStub
.getIamPolicyCallable()
.futureCall(GetIamPolicyRequest.newBuilder().setResource(resource).build(), context));
}
@Override
public Policy setInstanceAdminIAMPolicy(String resource, Policy policy) {
GrpcCallContext context = newCallContext(null, resource);
return get(
instanceAdminStub
.setIamPolicyCallable()
.futureCall(
SetIamPolicyRequest.newBuilder().setResource(resource).setPolicy(policy).build(),
context));
}
@Override
public TestIamPermissionsResponse testInstanceAdminIAMPermissions(
String resource, Iterable<String> permissions) {
GrpcCallContext context = newCallContext(null, resource);
return get(
instanceAdminStub
.testIamPermissionsCallable()
.futureCall(
TestIamPermissionsRequest.newBuilder()
.setResource(resource)
.addAllPermissions(permissions)
.build(),
context));
}
/** Gets the result of an async RPC call, handling any exceptions encountered. */
private static <T> T get(final Future<T> future) throws SpannerException {
final Context context = Context.current();
try {
return future.get();
} catch (InterruptedException e) {
// We are the sole consumer of the future, so cancel it.
future.cancel(true);
throw SpannerExceptionFactory.propagateInterrupt(e);
} catch (Exception e) {
throw newSpannerException(context, e);
}
}
@VisibleForTesting
GrpcCallContext newCallContext(@Nullable Map<Option, ?> options, String resource) {
return newCallContext(options, resource, null);
}
private GrpcCallContext newCallContext(
@Nullable Map<Option, ?> options, String resource, Duration timeout) {
GrpcCallContext context = GrpcCallContext.createDefault();
if (options != null) {
context = context.withChannelAffinity(Option.CHANNEL_HINT.getLong(options).intValue());
}
context = context.withExtraHeaders(metadataProvider.newExtraHeaders(resource, projectName));
if (timeout != null) {
context = context.withTimeout(timeout);
}
if (callCredentialsProvider != null) {
CallCredentials callCredentials = callCredentialsProvider.getCallCredentials();
if (callCredentials != null) {
context =
context.withCallOptions(context.getCallOptions().withCallCredentials(callCredentials));
}
}
return context.withStreamWaitTimeout(waitTimeout).withStreamIdleTimeout(idleTimeout);
}
@Override
public void shutdown() {
this.rpcIsClosed = true;
this.spannerStub.close();
this.instanceAdminStub.close();
this.databaseAdminStub.close();
this.spannerWatchdog.shutdown();
this.executorProvider.shutdown();
}
@Override
public boolean isClosed() {
return rpcIsClosed;
}
/**
* A {@code ResponseObserver} that exposes the {@code StreamController} and delegates callbacks to
* the {@link ResultStreamConsumer}.
*/
private static class SpannerResponseObserver implements ResponseObserver<PartialResultSet> {
private StreamController controller;
private final ResultStreamConsumer consumer;
public SpannerResponseObserver(ResultStreamConsumer consumer) {
this.consumer = consumer;
}
@Override
public void onStart(StreamController controller) {
// Disable the auto flow control to allow client library
// set the number of messages it prefers to request
controller.disableAutoInboundFlowControl();
this.controller = controller;
}
@Override
public void onResponse(PartialResultSet response) {
consumer.onPartialResultSet(response);
}
@Override
public void onError(Throwable t) {
consumer.onError(newSpannerException(t));
}
@Override
public void onComplete() {
consumer.onCompleted();
}
StreamController getController() {
return Preconditions.checkNotNull(this.controller);
}
}
private static Duration systemProperty(String name, int defaultValue) {
String stringValue = System.getProperty(name, "");
return Duration.ofSeconds(stringValue.isEmpty() ? defaultValue : Integer.parseInt(stringValue));
}
}