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package io.quarkus.narayana.jta;

import java.util.function.Function;

import jakarta.annotation.PreDestroy;
import jakarta.enterprise.context.RequestScoped;
import jakarta.inject.Inject;
import jakarta.transaction.NotSupportedException;
import jakarta.transaction.Status;
import jakarta.transaction.SystemException;
import jakarta.transaction.Transaction;
import jakarta.transaction.TransactionManager;
import jakarta.transaction.UserTransaction;

import org.jboss.logging.Logger;

import io.quarkus.narayana.jta.runtime.TransactionManagerConfiguration;

/**
 * A request scoped representation of a transaction.
 * 

* If the transaction is not committed it will be automatically rolled back when the request scope is destroyed. */ @RequestScoped class RequestScopedTransaction { private static final Logger log = Logger.getLogger(RequestScopedTransaction.class); public static final Function DEFAULT_HANDLER = ( e) -> RunOptions.ExceptionResult.ROLLBACK; private final UserTransaction userTransaction; private final TransactionManager transactionManager; private final TransactionManagerConfiguration transactionManagerConfiguration; private Transaction createdTransaction; boolean autoCommit; @Inject public RequestScopedTransaction(UserTransaction userTransaction, TransactionManager transactionManager, TransactionManagerConfiguration transactionManagerConfiguration) { this.userTransaction = userTransaction; this.transactionManager = transactionManager; this.transactionManagerConfiguration = transactionManagerConfiguration; } public RequestScopedTransaction() { //for proxiability this.userTransaction = null; this.transactionManagerConfiguration = null; this.transactionManager = null; } void begin(BeginOptions options) { int timeout = options != null ? options.timeout : 0; boolean commitOnRequestScopeEnd = options != null && options.commitOnRequestScopeEnd; try { if (userTransaction.getStatus() != Status.STATUS_NO_TRANSACTION) { throw new QuarkusTransactionException("Transaction already active"); } this.autoCommit = commitOnRequestScopeEnd; if (timeout > 0) { userTransaction.setTransactionTimeout(timeout); } userTransaction.begin(); createdTransaction = transactionManager.getTransaction(); } catch (NotSupportedException | SystemException e) { throw new QuarkusTransactionException(e); } finally { if (timeout > 0) { try { userTransaction.setTransactionTimeout( (int) transactionManagerConfiguration.defaultTransactionTimeout.toSeconds()); } catch (SystemException e) { throw new QuarkusTransactionException(e); } } } } @PreDestroy void destroy() { try { if (transactionManager.getTransaction() == createdTransaction) { if (autoCommit) { QuarkusTransaction.commit(); } else { log.warn("Rolling back transaction that was not committed or explicitly rolled back."); try { userTransaction.rollback(); } catch (SystemException e) { throw new QuarkusTransactionException(e); } } } } catch (SystemException e) { log.warn("Failed to destroy request scoped transaction", e); } } }





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