forked from googleapis/java-spanner
/
GapicSpannerRpc.java
1720 lines (1578 loc) · 70.4 KB
/
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.ApiFuture;
import com.google.api.core.InternalApi;
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.retrying.ResultRetryAlgorithm;
import com.google.api.gax.retrying.RetrySettings;
import com.google.api.gax.retrying.TimedAttemptSettings;
import com.google.api.gax.rpc.AlreadyExistsException;
import com.google.api.gax.rpc.ApiCallContext;
import com.google.api.gax.rpc.ApiClientHeaderProvider;
import com.google.api.gax.rpc.ApiException;
import com.google.api.gax.rpc.FixedHeaderProvider;
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.ServerStream;
import com.google.api.gax.rpc.StatusCode;
import com.google.api.gax.rpc.StreamController;
import com.google.api.gax.rpc.TransportChannelProvider;
import com.google.api.gax.rpc.UnavailableException;
import com.google.api.gax.rpc.WatchdogProvider;
import com.google.api.pathtemplate.PathTemplate;
import com.google.cloud.RetryHelper;
import com.google.cloud.RetryHelper.RetryHelperException;
import com.google.cloud.grpc.GrpcTransportOptions;
import com.google.cloud.spanner.AdminRequestsPerMinuteExceededException;
import com.google.cloud.spanner.ErrorCode;
import com.google.cloud.spanner.SpannerException;
import com.google.cloud.spanner.SpannerExceptionFactory;
import com.google.cloud.spanner.SpannerOptions;
import com.google.cloud.spanner.SpannerOptions.CallContextConfigurator;
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.DatabaseAdminStubSettings;
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.admin.instance.v1.stub.InstanceAdminStubSettings;
import com.google.cloud.spanner.v1.stub.GrpcSpannerStub;
import com.google.cloud.spanner.v1.stub.SpannerStub;
import com.google.cloud.spanner.v1.stub.SpannerStubSettings;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Function;
import com.google.common.base.MoreObjects;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.util.concurrent.RateLimiter;
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.CancelOperationRequest;
import com.google.longrunning.GetOperationRequest;
import com.google.longrunning.Operation;
import com.google.longrunning.OperationsGrpc;
import com.google.protobuf.Empty;
import com.google.protobuf.FieldMask;
import com.google.protobuf.InvalidProtocolBufferException;
import com.google.protobuf.Message;
import com.google.protobuf.Timestamp;
import com.google.spanner.admin.database.v1.Backup;
import com.google.spanner.admin.database.v1.CreateBackupMetadata;
import com.google.spanner.admin.database.v1.CreateBackupRequest;
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.DatabaseAdminGrpc;
import com.google.spanner.admin.database.v1.DeleteBackupRequest;
import com.google.spanner.admin.database.v1.DropDatabaseRequest;
import com.google.spanner.admin.database.v1.GetBackupRequest;
import com.google.spanner.admin.database.v1.GetDatabaseDdlRequest;
import com.google.spanner.admin.database.v1.GetDatabaseRequest;
import com.google.spanner.admin.database.v1.ListBackupOperationsRequest;
import com.google.spanner.admin.database.v1.ListBackupOperationsResponse;
import com.google.spanner.admin.database.v1.ListBackupsRequest;
import com.google.spanner.admin.database.v1.ListBackupsResponse;
import com.google.spanner.admin.database.v1.ListDatabaseOperationsRequest;
import com.google.spanner.admin.database.v1.ListDatabaseOperationsResponse;
import com.google.spanner.admin.database.v1.ListDatabasesRequest;
import com.google.spanner.admin.database.v1.ListDatabasesResponse;
import com.google.spanner.admin.database.v1.RestoreDatabaseMetadata;
import com.google.spanner.admin.database.v1.RestoreDatabaseRequest;
import com.google.spanner.admin.database.v1.UpdateBackupRequest;
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.InstanceAdminGrpc;
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.SpannerGrpc;
import com.google.spanner.v1.Transaction;
import io.grpc.CallCredentials;
import io.grpc.Context;
import io.grpc.MethodDescriptor;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.Comparator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.concurrent.CancellationException;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
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 java.util.concurrent.TimeUnit;
import javax.annotation.Nullable;
import org.threeten.bp.Duration;
/** Implementation of Cloud Spanner remote calls using Gapic libraries. */
@InternalApi
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 {
// 4 Gapic clients * 4 channels per client.
private static final int DEFAULT_MIN_THREAD_COUNT = 16;
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() {
int numCpus = Runtime.getRuntime().availableProcessors();
int numThreads = Math.max(DEFAULT_MIN_THREAD_COUNT, numCpus);
ScheduledExecutorService executor =
new ScheduledThreadPoolExecutor(numThreads, 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 void awaitTermination() throws InterruptedException {
for (ScheduledExecutorService executor : executors) {
executor.awaitTermination(10L, TimeUnit.SECONDS);
}
}
}
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 static final String USER_AGENT_KEY = "user-agent";
private static final String CLIENT_LIBRARY_LANGUAGE = "spanner-java";
// TODO(weiranf): Remove this temporary endpoint once DirectPath goes to public beta.
private static final String DIRECT_PATH_ENDPOINT = "aa423245250f2bbf.sandbox.googleapis.com:443";
private final ManagedInstantiatingExecutorProvider executorProvider;
private boolean rpcIsClosed;
private final SpannerStub spannerStub;
private final SpannerStub partitionedDmlStub;
private final RetrySettings partitionedDmlRetrySettings;
private final InstanceAdminStub instanceAdminStub;
private final DatabaseAdminStubSettings databaseAdminStubSettings;
private final DatabaseAdminStub databaseAdminStub;
private final String projectId;
private final String projectName;
private final SpannerMetadataProvider metadataProvider;
private final CallCredentialsProvider callCredentialsProvider;
private final String compressorName;
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;
private final boolean throttleAdministrativeRequests;
private static final double ADMINISTRATIVE_REQUESTS_RATE_LIMIT = 1.0D;
private static final ConcurrentMap<String, RateLimiter> ADMINISTRATIVE_REQUESTS_RATE_LIMITERS =
new ConcurrentHashMap<String, RateLimiter>();
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;
this.throttleAdministrativeRequests = options.isAutoThrottleAdministrativeRequests();
if (throttleAdministrativeRequests) {
ADMINISTRATIVE_REQUESTS_RATE_LIMITERS.putIfAbsent(
projectNameStr, RateLimiter.create(ADMINISTRATIVE_REQUESTS_RATE_LIMIT));
}
// 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);
Map<String, String> headersWithUserAgent =
ImmutableMap.<String, String>builder()
.put(
USER_AGENT_KEY,
CLIENT_LIBRARY_LANGUAGE
+ "/"
+ GaxProperties.getLibraryVersion(GapicSpannerRpc.class))
.putAll(mergedHeaderProvider.getHeaders())
.build();
final HeaderProvider headerProviderWithUserAgent =
FixedHeaderProvider.create(headersWithUserAgent);
this.metadataProvider =
SpannerMetadataProvider.create(
headerProviderWithUserAgent.getHeaders(),
internalHeaderProviderBuilder.getResourceHeaderKey());
this.callCredentialsProvider = options.getCallCredentialsProvider();
this.compressorName = options.getCompressorName();
// 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
InstantiatingGrpcChannelProvider.Builder defaultChannelProviderBuilder =
InstantiatingGrpcChannelProvider.newBuilder()
.setChannelConfigurator(options.getChannelConfigurator())
.setEndpoint(options.getEndpoint())
.setMaxInboundMessageSize(MAX_MESSAGE_SIZE)
.setMaxInboundMetadataSize(MAX_METADATA_SIZE)
.setPoolSize(options.getNumChannels())
// Before updating this method to setExecutor, please verify with a code owner on
// the lowest version of gax-grpc that needs to be supported. Currently v1.47.17,
// which doesn't support the setExecutor variant.
.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(
SpannerInterceptorProvider.create(
MoreObjects.firstNonNull(
options.getInterceptorProvider(),
SpannerInterceptorProvider.createDefault()))
.withEncoding(compressorName))
.setHeaderProvider(headerProviderWithUserAgent);
// TODO(weiranf): Set to true by default once DirectPath goes to public beta.
if (shouldAttemptDirectPath()) {
defaultChannelProviderBuilder.setEndpoint(DIRECT_PATH_ENDPOINT).setAttemptDirectPath(true);
}
TransportChannelProvider channelProvider =
MoreObjects.firstNonNull(
options.getChannelProvider(), defaultChannelProviderBuilder.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());
partitionedDmlRetrySettings =
options
.getSpannerStubSettings()
.executeSqlSettings()
.getRetrySettings()
.toBuilder()
.setInitialRpcTimeout(options.getPartitionedDmlTimeout())
.setMaxRpcTimeout(options.getPartitionedDmlTimeout())
.setTotalTimeout(options.getPartitionedDmlTimeout())
.setRpcTimeoutMultiplier(1.0)
.build();
SpannerStubSettings.Builder pdmlSettings = options.getSpannerStubSettings().toBuilder();
pdmlSettings
.setTransportChannelProvider(channelProvider)
.setCredentialsProvider(credentialsProvider)
.setStreamWatchdogProvider(watchdogProvider)
.executeSqlSettings()
.setRetrySettings(partitionedDmlRetrySettings);
pdmlSettings.executeStreamingSqlSettings().setRetrySettings(partitionedDmlRetrySettings);
// The stream watchdog will by default only check for a timeout every 10 seconds, so if the
// timeout is less than 10 seconds, it would be ignored for the first 10 seconds unless we
// also change the StreamWatchdogCheckInterval.
if (options
.getPartitionedDmlTimeout()
.dividedBy(10L)
.compareTo(pdmlSettings.getStreamWatchdogCheckInterval())
< 0) {
pdmlSettings.setStreamWatchdogCheckInterval(
options.getPartitionedDmlTimeout().dividedBy(10));
pdmlSettings.setStreamWatchdogProvider(
pdmlSettings
.getStreamWatchdogProvider()
.withCheckInterval(pdmlSettings.getStreamWatchdogCheckInterval()));
}
this.partitionedDmlStub = GrpcSpannerStub.create(pdmlSettings.build());
this.instanceAdminStub =
GrpcInstanceAdminStub.create(
options
.getInstanceAdminStubSettings()
.toBuilder()
.setTransportChannelProvider(channelProvider)
.setCredentialsProvider(credentialsProvider)
.setStreamWatchdogProvider(watchdogProvider)
.build());
this.databaseAdminStubSettings =
options
.getDatabaseAdminStubSettings()
.toBuilder()
.setTransportChannelProvider(channelProvider)
.setCredentialsProvider(credentialsProvider)
.setStreamWatchdogProvider(watchdogProvider)
.build();
this.databaseAdminStub = GrpcDatabaseAdminStub.create(this.databaseAdminStubSettings);
// Check whether the SPANNER_EMULATOR_HOST env var has been set, and if so, if the emulator is
// actually running.
checkEmulatorConnection(options, channelProvider, credentialsProvider);
} catch (Exception e) {
throw newSpannerException(e);
}
}
// TODO(weiranf): Remove this once DirectPath goes to public beta.
private static boolean shouldAttemptDirectPath() {
return Boolean.getBoolean("spanner.attempt_directpath");
}
private static void checkEmulatorConnection(
SpannerOptions options,
TransportChannelProvider channelProvider,
CredentialsProvider credentialsProvider)
throws IOException {
final String emulatorHost = System.getenv("SPANNER_EMULATOR_HOST");
// Only do the check if the emulator environment variable has been set to localhost.
if (options.getChannelProvider() == null
&& emulatorHost != null
&& options.getHost() != null
&& options.getHost().startsWith("http://localhost")
&& options.getHost().endsWith(emulatorHost)) {
// Do a quick check to see if the emulator is actually running.
try {
InstanceAdminStubSettings.Builder testEmulatorSettings =
options
.getInstanceAdminStubSettings()
.toBuilder()
.setTransportChannelProvider(channelProvider)
.setCredentialsProvider(credentialsProvider);
testEmulatorSettings
.listInstanceConfigsSettings()
.setSimpleTimeoutNoRetries(Duration.ofSeconds(10L));
try (GrpcInstanceAdminStub stub =
GrpcInstanceAdminStub.create(testEmulatorSettings.build())) {
stub.listInstanceConfigsCallable()
.call(
ListInstanceConfigsRequest.newBuilder()
.setParent(String.format("projects/%s", options.getProjectId()))
.build());
}
} catch (UnavailableException e) {
throw SpannerExceptionFactory.newSpannerException(
ErrorCode.UNAVAILABLE,
String.format(
"The environment variable SPANNER_EMULATOR_HOST has been set to %s, but no running"
+ " emulator could be found at that address.\n"
+ "Did you forget to start the emulator, or to unset the environment"
+ " variable?",
emulatorHost));
}
}
}
private static final RetrySettings ADMIN_REQUESTS_LIMIT_EXCEEDED_RETRY_SETTINGS =
RetrySettings.newBuilder()
.setInitialRetryDelay(Duration.ofSeconds(2L))
.setRetryDelayMultiplier(1.5)
.setMaxRetryDelay(Duration.ofSeconds(15L))
.setMaxAttempts(10)
.build();
@VisibleForTesting
static final class AdminRequestsLimitExceededRetryAlgorithm<T>
implements ResultRetryAlgorithm<T> {
@Override
public TimedAttemptSettings createNextAttempt(
Throwable prevThrowable, T prevResponse, TimedAttemptSettings prevSettings) {
// Use default retry settings.
return null;
}
@Override
public boolean shouldRetry(Throwable prevThrowable, T prevResponse)
throws CancellationException {
return prevThrowable instanceof AdminRequestsPerMinuteExceededException;
}
}
private static <T> T runWithRetryOnAdministrativeRequestsExceeded(Callable<T> callable) {
try {
return RetryHelper.runWithRetries(
callable,
ADMIN_REQUESTS_LIMIT_EXCEEDED_RETRY_SETTINGS,
new AdminRequestsLimitExceededRetryAlgorithm<>(),
NanoClock.getDefaultClock());
} catch (RetryHelperException e) {
throw SpannerExceptionFactory.asSpannerException(e.getCause());
}
}
private static final class OperationFutureRetryAlgorithm<ResultT, MetadataT>
implements ResultRetryAlgorithm<OperationFuture<ResultT, MetadataT>> {
private static final ImmutableList<StatusCode.Code> RETRYABLE_CODES =
ImmutableList.of(StatusCode.Code.DEADLINE_EXCEEDED, StatusCode.Code.UNAVAILABLE);
@Override
public TimedAttemptSettings createNextAttempt(
Throwable prevThrowable,
OperationFuture<ResultT, MetadataT> prevResponse,
TimedAttemptSettings prevSettings) {
// Use default retry settings.
return null;
}
@Override
public boolean shouldRetry(
Throwable prevThrowable, OperationFuture<ResultT, MetadataT> prevResponse)
throws CancellationException {
if (prevThrowable instanceof ApiException) {
ApiException e = (ApiException) prevThrowable;
return RETRYABLE_CODES.contains(e.getStatusCode().getCode());
}
if (prevResponse != null) {
try {
prevResponse.getInitialFuture().get();
} catch (ExecutionException ee) {
Throwable cause = ee.getCause();
if (cause instanceof ApiException) {
ApiException e = (ApiException) cause;
return RETRYABLE_CODES.contains(e.getStatusCode().getCode());
}
} catch (InterruptedException e) {
return false;
}
}
return false;
}
}
private final class OperationFutureCallable<RequestT, ResponseT, MetadataT extends Message>
implements Callable<OperationFuture<ResponseT, MetadataT>> {
final OperationCallable<RequestT, ResponseT, MetadataT> operationCallable;
final RequestT initialRequest;
final MethodDescriptor<RequestT, Operation> method;
final String instanceName;
final OperationsLister lister;
final Function<Operation, Timestamp> getStartTimeFunction;
Timestamp initialCallTime;
boolean isRetry = false;
OperationFutureCallable(
OperationCallable<RequestT, ResponseT, MetadataT> operationCallable,
RequestT initialRequest,
MethodDescriptor<RequestT, Operation> method,
String instanceName,
OperationsLister lister,
Function<Operation, Timestamp> getStartTimeFunction) {
this.operationCallable = operationCallable;
this.initialRequest = initialRequest;
this.method = method;
this.instanceName = instanceName;
this.lister = lister;
this.getStartTimeFunction = getStartTimeFunction;
}
@Override
public OperationFuture<ResponseT, MetadataT> call() throws Exception {
acquireAdministrativeRequestsRateLimiter();
return runWithRetryOnAdministrativeRequestsExceeded(
new Callable<OperationFuture<ResponseT, MetadataT>>() {
@Override
public OperationFuture<ResponseT, MetadataT> call() throws Exception {
String operationName = null;
if (isRetry) {
// Query the backend to see if the operation was actually created, and that the
// problem was caused by a network problem or other transient problem client side.
Operation operation =
mostRecentOperation(lister, getStartTimeFunction, initialCallTime);
if (operation != null) {
// Operation found, resume tracking that operation.
operationName = operation.getName();
}
} else {
initialCallTime =
Timestamp.newBuilder()
.setSeconds(
TimeUnit.SECONDS.convert(
System.currentTimeMillis(), TimeUnit.MILLISECONDS))
.build();
}
isRetry = true;
if (operationName == null) {
GrpcCallContext context =
newCallContext(null, instanceName, initialRequest, method);
return operationCallable.futureCall(initialRequest, context);
} else {
return operationCallable.resumeFutureCall(operationName);
}
}
});
}
}
private interface OperationsLister {
Paginated<Operation> listOperations(String nextPageToken);
}
private Operation mostRecentOperation(
OperationsLister lister,
Function<Operation, Timestamp> getStartTimeFunction,
Timestamp initialCallTime)
throws InvalidProtocolBufferException {
Operation res = null;
Timestamp currMaxStartTime = null;
String nextPageToken = null;
Paginated<Operation> operations;
do {
operations = lister.listOperations(nextPageToken);
nextPageToken = operations.getNextPageToken();
for (Operation op : operations.getResults()) {
Timestamp startTime = getStartTimeFunction.apply(op);
if (res == null
|| (TimestampComparator.INSTANCE.compare(startTime, currMaxStartTime) > 0
&& TimestampComparator.INSTANCE.compare(startTime, initialCallTime) >= 0)) {
currMaxStartTime = startTime;
res = op;
}
// If the operation does not report any start time, then the operation that is not yet done
// is the one that is the most recent.
if (startTime == null && currMaxStartTime == null && !op.getDone()) {
res = op;
break;
}
}
} while (nextPageToken != null);
return res;
}
private static final class TimestampComparator implements Comparator<Timestamp> {
private static final TimestampComparator INSTANCE = new TimestampComparator();
@Override
public int compare(Timestamp t1, Timestamp t2) {
if (t1 == null && t2 == null) {
return 0;
}
if (t1 != null && t2 == null) {
return 1;
}
if (t1 == null && t2 != null) {
return -1;
}
if (t1.getSeconds() > t2.getSeconds()
|| (t1.getSeconds() == t2.getSeconds() && t1.getNanos() > t2.getNanos())) {
return 1;
}
if (t1.getSeconds() < t2.getSeconds()
|| (t1.getSeconds() == t2.getSeconds() && t1.getNanos() < t2.getNanos())) {
return -1;
}
return 0;
}
}
private void acquireAdministrativeRequestsRateLimiter() {
if (throttleAdministrativeRequests) {
RateLimiter limiter = ADMINISTRATIVE_REQUESTS_RATE_LIMITERS.get(this.projectName);
if (limiter != null) {
limiter.acquire();
}
}
}
@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, request, InstanceAdminGrpc.getListInstanceConfigsMethod());
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, request, InstanceAdminGrpc.getGetInstanceConfigMethod());
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, request, InstanceAdminGrpc.getListInstancesMethod());
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, request, InstanceAdminGrpc.getCreateInstanceMethod());
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(), request, InstanceAdminGrpc.getUpdateInstanceMethod());
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, request, InstanceAdminGrpc.getGetInstanceMethod());
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, request, InstanceAdminGrpc.getDeleteInstanceMethod());
get(instanceAdminStub.deleteInstanceCallable().futureCall(request, context));
}
@Override
public Paginated<Operation> listBackupOperations(
String instanceName, int pageSize, @Nullable String filter, @Nullable String pageToken) {
acquireAdministrativeRequestsRateLimiter();
ListBackupOperationsRequest.Builder requestBuilder =
ListBackupOperationsRequest.newBuilder().setParent(instanceName).setPageSize(pageSize);
if (filter != null) {
requestBuilder.setFilter(filter);
}
if (pageToken != null) {
requestBuilder.setPageToken(pageToken);
}
final ListBackupOperationsRequest request = requestBuilder.build();
final GrpcCallContext context =
newCallContext(
null, instanceName, request, DatabaseAdminGrpc.getListBackupOperationsMethod());
ListBackupOperationsResponse response =
runWithRetryOnAdministrativeRequestsExceeded(
new Callable<ListBackupOperationsResponse>() {
@Override
public ListBackupOperationsResponse call() throws Exception {
return get(
databaseAdminStub.listBackupOperationsCallable().futureCall(request, context));
}
});
return new Paginated<>(response.getOperationsList(), response.getNextPageToken());
}
@Override
public Paginated<Operation> listDatabaseOperations(
String instanceName, int pageSize, @Nullable String filter, @Nullable String pageToken) {
acquireAdministrativeRequestsRateLimiter();
ListDatabaseOperationsRequest.Builder requestBuilder =
ListDatabaseOperationsRequest.newBuilder().setParent(instanceName).setPageSize(pageSize);
if (filter != null) {
requestBuilder.setFilter(filter);
}
if (pageToken != null) {
requestBuilder.setPageToken(pageToken);
}
final ListDatabaseOperationsRequest request = requestBuilder.build();
final GrpcCallContext context =
newCallContext(
null, instanceName, request, DatabaseAdminGrpc.getListDatabaseOperationsMethod());
ListDatabaseOperationsResponse response =
runWithRetryOnAdministrativeRequestsExceeded(
new Callable<ListDatabaseOperationsResponse>() {
@Override
public ListDatabaseOperationsResponse call() throws Exception {
return get(
databaseAdminStub
.listDatabaseOperationsCallable()
.futureCall(request, context));
}
});
return new Paginated<>(response.getOperationsList(), response.getNextPageToken());
}
@Override
public Paginated<Backup> listBackups(
String instanceName, int pageSize, @Nullable String filter, @Nullable String pageToken)
throws SpannerException {
acquireAdministrativeRequestsRateLimiter();
ListBackupsRequest.Builder requestBuilder =
ListBackupsRequest.newBuilder().setParent(instanceName).setPageSize(pageSize);
if (filter != null) {
requestBuilder.setFilter(filter);
}
if (pageToken != null) {
requestBuilder.setPageToken(pageToken);
}
final ListBackupsRequest request = requestBuilder.build();
final GrpcCallContext context =
newCallContext(null, instanceName, request, DatabaseAdminGrpc.getListBackupsMethod());
ListBackupsResponse response =
runWithRetryOnAdministrativeRequestsExceeded(
new Callable<ListBackupsResponse>() {
@Override
public ListBackupsResponse call() throws Exception {
return get(databaseAdminStub.listBackupsCallable().futureCall(request, context));
}
});
return new Paginated<>(response.getBackupsList(), response.getNextPageToken());
}
@Override
public Paginated<Database> listDatabases(
String instanceName, int pageSize, @Nullable String pageToken) throws SpannerException {
acquireAdministrativeRequestsRateLimiter();
ListDatabasesRequest.Builder requestBuilder =
ListDatabasesRequest.newBuilder().setParent(instanceName).setPageSize(pageSize);
if (pageToken != null) {
requestBuilder.setPageToken(pageToken);
}
final ListDatabasesRequest request = requestBuilder.build();
final GrpcCallContext context =
newCallContext(null, instanceName, request, DatabaseAdminGrpc.getListDatabasesMethod());
ListDatabasesResponse response =
runWithRetryOnAdministrativeRequestsExceeded(
new Callable<ListDatabasesResponse>() {
@Override
public ListDatabasesResponse call() throws Exception {
return get(databaseAdminStub.listDatabasesCallable().futureCall(request, context));
}
});
return new Paginated<>(response.getDatabasesList(), response.getNextPageToken());
}
@Override
public OperationFuture<Database, CreateDatabaseMetadata> createDatabase(
final String instanceName,
String createDatabaseStatement,
Iterable<String> additionalStatements)
throws SpannerException {
final String databaseId =
createDatabaseStatement.substring(
"CREATE DATABASE `".length(), createDatabaseStatement.length() - 1);
CreateDatabaseRequest request =
CreateDatabaseRequest.newBuilder()
.setParent(instanceName)
.setCreateStatement(createDatabaseStatement)
.addAllExtraStatements(additionalStatements)
.build();
OperationFutureCallable<CreateDatabaseRequest, Database, CreateDatabaseMetadata> callable =
new OperationFutureCallable<CreateDatabaseRequest, Database, CreateDatabaseMetadata>(
databaseAdminStub.createDatabaseOperationCallable(),
request,
DatabaseAdminGrpc.getCreateDatabaseMethod(),
instanceName,
new OperationsLister() {
@Override
public Paginated<Operation> listOperations(String nextPageToken) {
return listDatabaseOperations(
instanceName,
0,
String.format(
"(metadata.@type:type.googleapis.com/%s) AND (name:%s/operations/)",
CreateDatabaseMetadata.getDescriptor().getFullName(),
String.format("%s/databases/%s", instanceName, databaseId)),
nextPageToken);
}
},
new Function<Operation, Timestamp>() {
@Override
public Timestamp apply(Operation input) {
if (input.getDone() && input.hasResponse()) {
try {
Timestamp createTime =
input.getResponse().unpack(Database.class).getCreateTime();
if (Timestamp.getDefaultInstance().equals(createTime)) {
// Create time was not returned by the server (proto objects never return
// null, instead they return the default instance). Return null from this
// method to indicate that there is no known create time.
return null;
}
} catch (InvalidProtocolBufferException e) {
return null;
}
}
return null;
}
});
return RetryHelper.runWithRetries(
callable,
databaseAdminStubSettings
.createDatabaseOperationSettings()
.getInitialCallSettings()
.getRetrySettings(),
new OperationFutureRetryAlgorithm<>(),
NanoClock.getDefaultClock());
}
@Override
public OperationFuture<Empty, UpdateDatabaseDdlMetadata> updateDatabaseDdl(
final String databaseName,
final Iterable<String> updateDatabaseStatements,
@Nullable final String updateId)
throws SpannerException {
acquireAdministrativeRequestsRateLimiter();