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feat: add TransactionExecutionOptions support to executor. #2396

Merged
merged 10 commits into from Apr 25, 2023
Expand Up @@ -140,6 +140,7 @@
import com.google.spanner.executor.v1.SpannerAsyncActionResponse;
import com.google.spanner.executor.v1.StartBatchTransactionAction;
import com.google.spanner.executor.v1.StartTransactionAction;
import com.google.spanner.executor.v1.TransactionExecutionOptions;
import com.google.spanner.executor.v1.UpdateCloudBackupAction;
import com.google.spanner.executor.v1.UpdateCloudDatabaseDdlAction;
import com.google.spanner.executor.v1.UpdateCloudInstanceAction;
Expand Down Expand Up @@ -227,13 +228,16 @@ private static class ReadWriteTransaction {
private Mode finishMode;
private SpannerException error;
private final String transactionSeed;
private final boolean optimistic;
// Set to true when the transaction runner completed, one of these three could happen: runner
// committed, abandoned or threw an error.
private boolean runnerCompleted;

public ReadWriteTransaction(DatabaseClient dbClient, String transactionSeed) {
public ReadWriteTransaction(
DatabaseClient dbClient, String transactionSeed, boolean optimistic) {
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this.dbClient = dbClient;
this.transactionSeed = transactionSeed;
this.optimistic = optimistic;
this.runnerCompleted = false;
}

Expand Down Expand Up @@ -318,7 +322,10 @@ public void startRWTransaction() throws Exception {
Runnable runnable =
() -> {
try {
runner = dbClient.readWriteTransaction();
runner =
optimistic
? dbClient.readWriteTransaction(Options.optimisticLock())
: dbClient.readWriteTransaction();
LOGGER.log(Level.INFO, String.format("Ready to run callable %s\n", transactionSeed));
runner.run(callable);
transactionSucceeded(runner.getCommitTimestamp().toProto());
Expand Down Expand Up @@ -537,7 +544,8 @@ public synchronized void startReadOnlyTxn(
}

/** Start a read-write transaction. */
public synchronized void startReadWriteTxn(DatabaseClient dbClient, Metadata metadata)
public synchronized void startReadWriteTxn(
DatabaseClient dbClient, Metadata metadata, TransactionExecutionOptions options)
throws Exception {
if ((rwTxn != null) || (roTxn != null) || (batchTxn != null)) {
throw SpannerExceptionFactory.newSpannerException(
Expand All @@ -548,7 +556,7 @@ public synchronized void startReadWriteTxn(DatabaseClient dbClient, Metadata met
String.format(
"There's no active transaction, safe to create rwTxn: %s\n", getTransactionSeed()));
this.metadata = metadata;
rwTxn = new ReadWriteTransaction(dbClient, transactionSeed);
rwTxn = new ReadWriteTransaction(dbClient, transactionSeed, options.getOptimistic());
LOGGER.log(
Level.INFO,
String.format(
Expand Down Expand Up @@ -2246,7 +2254,7 @@ private Status executeStartTxn(
Level.INFO,
"Starting read-write transaction %s\n",
executionContext.getTransactionSeed());
executionContext.startReadWriteTxn(dbClient, metadata);
executionContext.startReadWriteTxn(dbClient, metadata, action.getExecutionOptions());
}
executionContext.setDatabaseClient(dbClient);
executionContext.initReadState();
Expand Down