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[#3230] Implement TransactionProvider for use with DataSourceConnectionProvider

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This commit is contained in:
Lukas Eder 2014-05-06 14:47:28 +02:00
parent d3d5d2ec41
commit 80dc9d197b
12 changed files with 301 additions and 65 deletions
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78
jOOQ-test/src/test/java/org/jooq/test/_/testcases/TransactionTests.java
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@ -47,9 +47,11 @@ import static org.junit.Assert.fail;
import java.sql.Connection;
import java.sql.Date;
import java.sql.SQLException;
import java.util.concurrent.atomic.AtomicInteger;
import org.jooq.Configuration;
import org.jooq.ConnectionProvider;
import org.jooq.DSLContext;
import org.jooq.Record1;
import org.jooq.Record2;
import org.jooq.Record3;
@ -106,8 +108,12 @@ extends BaseTest<A, AP, B, S, B2S, BS, L, X, DATE, BOOL, D, T, U, UU, I, IPK, T7
}
public void testTransactionsWithJDBCSimple() throws Exception {
DSLContext create = create();
TransactionalConnectionProvider provider = new TransactionalConnectionProvider(create.configuration().connectionProvider());
create.configuration().set(provider);
try {
create().transaction(new Transactional<Integer>() {
create.transaction(new Transactional<Integer>() {
@Override
public Integer run(Configuration configuration) {
assertAutoCommit(configuration.connectionProvider(), false);
@ -125,17 +131,24 @@ extends BaseTest<A, AP, B, S, B2S, BS, L, X, DATE, BOOL, D, T, U, UU, I, IPK, T7
fail();
}
catch (MyRuntimeException expected) {
assertEquals(1, provider.acquire.get());
assertEquals(1, provider.release.get());
assertEquals("No", expected.getMessage());
assertEquals(2, create().fetchCount(TAuthor()));
assertAutoCommit(create().configuration().connectionProvider(), true);
assertEquals(2, create.fetchCount(TAuthor()));
assertAutoCommit(create.configuration().connectionProvider(), true);
}
assertEquals(2, create().fetchCount(TAuthor()));
assertEquals(2, create.fetchCount(TAuthor()));
}
public void testTransactionsWithJDBCCheckedException() throws Exception {
DSLContext create = create();
TransactionalConnectionProvider provider = new TransactionalConnectionProvider(create.configuration().connectionProvider());
create.configuration().set(provider);
try {
create().transaction(new Transactional<Integer>() {
create.transaction(new Transactional<Integer>() {
@Override
public Integer run(Configuration configuration) throws MyCheckedException {
assertAutoCommit(configuration.connectionProvider(), false);
@ -153,13 +166,16 @@ extends BaseTest<A, AP, B, S, B2S, BS, L, X, DATE, BOOL, D, T, U, UU, I, IPK, T7
fail();
}
catch (DataAccessException expected) {
assertEquals(1, provider.acquire.get());
assertEquals(1, provider.release.get());
assertEquals(MyCheckedException.class, expected.getCause().getClass());
assertEquals("No", expected.getCause().getMessage());
assertEquals(2, create().fetchCount(TAuthor()));
assertAutoCommit(create().configuration().connectionProvider(), true);
assertEquals(2, create.fetchCount(TAuthor()));
assertAutoCommit(create.configuration().connectionProvider(), true);
}
assertEquals(2, create().fetchCount(TAuthor()));
assertEquals(2, create.fetchCount(TAuthor()));
}
public void testTransactionsWithJDBCNestedWithSavepoints() throws Exception {
@ -168,8 +184,12 @@ extends BaseTest<A, AP, B, S, B2S, BS, L, X, DATE, BOOL, D, T, U, UU, I, IPK, T7
final int[] inserted = new int[1];
final int[] updated = new int[1];
DSLContext create = create();
TransactionalConnectionProvider provider = new TransactionalConnectionProvider(create.configuration().connectionProvider());
create.configuration().set(provider);
Integer result =
create().transaction(new Transactional<Integer>() {
create.transaction(new Transactional<Integer>() {
@Override
public Integer run(Configuration c1) throws MyCheckedException {
assertAutoCommit(c1.connectionProvider(), false);
@ -215,7 +235,9 @@ extends BaseTest<A, AP, B, S, B2S, BS, L, X, DATE, BOOL, D, T, U, UU, I, IPK, T7
}
});
assertEquals(3, create().fetchCount(TAuthor()));
assertEquals(1, provider.acquire.get());
assertEquals(1, provider.release.get());
assertEquals(3, create.fetchCount(TAuthor()));
assertEquals(42, (int) result);
}
@ -224,8 +246,12 @@ extends BaseTest<A, AP, B, S, B2S, BS, L, X, DATE, BOOL, D, T, U, UU, I, IPK, T7
final int[] inserted = new int[1];
final int[] updated = new int[1];
DSLContext create = create();
TransactionalConnectionProvider provider = new TransactionalConnectionProvider(create.configuration().connectionProvider());
create.configuration().set(provider);
try {
create().transaction(new Transactional<Integer>() {
create.transaction(new Transactional<Integer>() {
@Override
public Integer run(Configuration c1) throws MyCheckedException {
assertAutoCommit(c1.connectionProvider(), false);
@ -266,7 +292,10 @@ extends BaseTest<A, AP, B, S, B2S, BS, L, X, DATE, BOOL, D, T, U, UU, I, IPK, T7
}
catch (MyRuntimeException expected) {
assertEquals(2, create().fetchCount(TAuthor()));
assertEquals(1, provider.acquire.get());
assertEquals(1, provider.release.get());
assertEquals(2, create.fetchCount(TAuthor()));
assertEquals(MyRuntimeException.class, expected.getClass());
assertEquals("No", expected.getMessage());
}
@ -287,4 +316,29 @@ extends BaseTest<A, AP, B, S, B2S, BS, L, X, DATE, BOOL, D, T, U, UU, I, IPK, T7
provider.release(c);
}
}
private static class TransactionalConnectionProvider implements ConnectionProvider {
private final ConnectionProvider delegate;
private final AtomicInteger acquire;
private final AtomicInteger release;
TransactionalConnectionProvider(ConnectionProvider delegate) {
this.delegate = delegate;
this.acquire = new AtomicInteger();
this.release = new AtomicInteger();
}
@Override
public Connection acquire() throws DataAccessException {
acquire.incrementAndGet();
return delegate.acquire();
}
@Override
public void release(Connection connection) throws DataAccessException {
release.incrementAndGet();
delegate.release(connection);
}
}
}

3
jOOQ-test/src/test/java/org/jooq/test/jOOQAbstractTest.java
View File

@ -101,9 +101,7 @@ import org.jooq.conf.RenderMapping;
import org.jooq.conf.Settings;
import org.jooq.conf.SettingsTools;
import org.jooq.impl.DSL;
import org.jooq.impl.DefaultConnectionProvider;
import org.jooq.impl.DefaultExecuteListenerProvider;
import org.jooq.impl.DefaultTransactionProvider;
import org.jooq.test._.converters.Boolean_10;
import org.jooq.test._.converters.Boolean_TF_LC;
import org.jooq.test._.converters.Boolean_TF_UC;
@ -977,7 +975,6 @@ public abstract class jOOQAbstractTest<
return DSL.using(c
.derive(cp)
.derive(new DefaultTransactionProvider((DefaultConnectionProvider) c.connectionProvider()))
.derive(
DefaultExecuteListenerProvider.providers(
new JDBCLifecycleListener(),

6
jOOQ/src/main/java/org/jooq/ConnectionProvider.java
View File

@ -52,6 +52,12 @@ import org.jooq.exception.DataAccessException;
* behaviour into jOOQ's internals. jOOQ will try to acquire a new JDBC
* {@link Connection} from the connection provider as early as needed, and will
* release it as early as possible.
* <p>
* {@link TransactionProvider} implementations may choose to influence
* {@link ConnectionProvider} behaviour, e.g. by acquiring connections upon
* {@link TransactionProvider#begin(TransactionContext)} and by releasing
* connections only upon {@link TransactionProvider#commit(TransactionContext)},
* or {@link TransactionProvider#rollback(TransactionContext)}.
*
* @author Aaron Digulla
* @author Lukas Eder

70
jOOQ/src/main/java/org/jooq/TransactionContext.java Normal file
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@ -0,0 +1,70 @@
/**
* Copyright (c) 2009-2014, Data Geekery GmbH (http://www.datageekery.com)
* All rights reserved.
*
* This work is dual-licensed
* - under the Apache Software License 2.0 (the "ASL")
* - under the jOOQ License and Maintenance Agreement (the "jOOQ License")
* =============================================================================
* You may choose which license applies to you:
*
* - If you're using this work with Open Source databases, you may choose
* either ASL or jOOQ License.
* - If you're using this work with at least one commercial database, you must
* choose jOOQ License
*
* For more information, please visit http://www.jooq.org/licenses
*
* Apache Software License 2.0:
* -----------------------------------------------------------------------------
* 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.
*
* jOOQ License and Maintenance Agreement:
* -----------------------------------------------------------------------------
* Data Geekery grants the Customer the non-exclusive, timely limited and
* non-transferable license to install and use the Software under the terms of
* the jOOQ License and Maintenance Agreement.
*
* This library is distributed with a LIMITED WARRANTY. See the jOOQ License
* and Maintenance Agreement for more details: http://www.jooq.org/licensing
*/
package org.jooq;
/**
* A context object that is used to pass arguments to the various methods of
* {@link TransactionProvider}.
*
* @author Lukas Eder
*/
public interface TransactionContext {
/**
* The configuration scoped to this transaction and its nested transactions.
*/
Configuration configuration();
/**
* A user-defined transaction object, obtained from
* {@link TransactionProvider#begin(TransactionContext)}.
*
* @return The transaction object. May be <code>null</code>.
*/
Transaction transaction();
/**
* The exception that has caused the rollback.
*
* @return The exception. May be <code>null</code>.
*/
Exception cause();
}

21
jOOQ/src/main/java/org/jooq/TransactionProvider.java
View File

@ -53,10 +53,9 @@ import org.jooq.impl.DefaultTransactionProvider;
* A new {@link Configuration} copy is created from the calling
* {@link DSLContext} for the scope of a single transactions. Implementors may
* freely add custom data to {@link Configuration#data()}, in order to share
* information between {@link #begin(Configuration)} and
* {@link #commit(Configuration, Transaction)} or
* {@link #rollback(Configuration, Transaction, Exception)}, as well as to share
* information with nested transactions.
* information between {@link #begin(TransactionContext)} and
* {@link #commit(TransactionContext)} or {@link #rollback(TransactionContext)},
* as well as to share information with nested transactions.
* <p>
* Implementors may freely choose whether they support nested transactions. An
* example implementation supporting nested transactions is
@ -73,8 +72,8 @@ public interface TransactionProvider {
* This method begins a new transaction with a {@link Configuration} scoped
* for this transaction. The resulting {@link Transaction} object may be
* used by implementors to identify the transaction when
* {@link #commit(Configuration, Transaction)} or
* {@link #rollback(Configuration, Transaction, Exception)} is called.
* {@link #commit(TransactionContext)} or
* {@link #rollback(TransactionContext)} is called.
*
* @param Configuration the configuration scoped to this transaction and its
* nested transactions.
@ -82,27 +81,27 @@ public interface TransactionProvider {
* @throws DataAccessException Any exception issued by the underlying
* database.
*/
Transaction begin(Configuration configuration) throws DataAccessException;
Transaction begin(TransactionContext ctx) throws DataAccessException;
/**
* @param Configuration the configuration scoped to this transaction and its
* nested transactions.
* @param transaction The user-defined transaction object returned from
* {@link #begin(Configuration)}. May be <code>null</code>.
* {@link #begin(TransactionContext)}. May be <code>null</code>.
* @throws DataAccessException Any exception issued by the underlying
* database.
*/
void commit(Configuration configuration, Transaction transaction) throws DataAccessException;
void commit(TransactionContext ctx) throws DataAccessException;
/**
* @param Configuration the configuration scoped to this transaction and its
* nested transactions.
* @param transaction The user-defined transaction object returned from
* {@link #begin(Configuration)}. May be <code>null</code>.
* {@link #begin(TransactionContext)}. May be <code>null</code>.
* @param cause The exception that has caused the rollback.
* @throws DataAccessException Any exception issued by the underlying
* database.
*/
void rollback(Configuration configuration, Transaction transaction, Exception cause) throws DataAccessException;
void rollback(TransactionContext ctx) throws DataAccessException;
}

14
jOOQ/src/main/java/org/jooq/impl/DefaultConfiguration.java
View File

@ -41,6 +41,7 @@
package org.jooq.impl;
import static org.jooq.SQLDialect.SQL99;
import static org.jooq.impl.Utils.DATA_DEFAULT_TRANSACTION_PROVIDER_CONNECTION;
import java.io.IOException;
import java.io.ObjectInputStream;
@ -520,7 +521,11 @@ public class DefaultConfiguration implements Configuration {
*/
@Override
public final ConnectionProvider connectionProvider() {
return connectionProvider;
// [#3229] If we're currently in a transaction, return that transaction's
// local DefaultConnectionProvider, not the one from this configuration
ConnectionProvider transactional = (ConnectionProvider) data(DATA_DEFAULT_TRANSACTION_PROVIDER_CONNECTION);
return transactional == null ? connectionProvider : transactional;
}
/**
@ -528,10 +533,11 @@ public class DefaultConfiguration implements Configuration {
*/
@Override
public final TransactionProvider transactionProvider() {
if (transactionProvider instanceof NoTransactionProvider &&
connectionProvider instanceof DefaultConnectionProvider) {
return new DefaultTransactionProvider((DefaultConnectionProvider) connectionProvider);
// [#3229] If transactions are used in client code, the default behaviour
// is assumed automatically, for convenience.
if (transactionProvider instanceof NoTransactionProvider) {
return new DefaultTransactionProvider(connectionProvider);
}
return transactionProvider;

17
jOOQ/src/main/java/org/jooq/impl/DefaultDSLContext.java
View File

@ -176,7 +176,6 @@ import org.jooq.Sequence;
import org.jooq.Table;
import org.jooq.TableLike;
import org.jooq.TableRecord;
import org.jooq.Transaction;
import org.jooq.TransactionProvider;
import org.jooq.Transactional;
import org.jooq.TruncateIdentityStep;
@ -293,19 +292,19 @@ public class DefaultDSLContext implements DSLContext, Serializable {
@Override
public <T> T transaction(Transactional<T> transactional) {
Configuration local = configuration.derive();
TransactionProvider provider = local.transactionProvider();
Transaction transaction = null;
T result = null;
DefaultTransactionContext ctx = new DefaultTransactionContext(configuration.derive());
TransactionProvider provider = configuration.derive().transactionProvider();
try {
transaction = provider.begin(local);
result = transactional.run(local);
provider.commit(local, transaction);
ctx.transaction = provider.begin(ctx);
result = transactional.run(configuration.derive());
provider.commit(ctx);
}
catch (Exception cause) {
provider.rollback(local, transaction, cause);
ctx.cause = cause;
provider.rollback(ctx);
if (cause instanceof RuntimeException) {
throw (RuntimeException) cause;

74
jOOQ/src/main/java/org/jooq/impl/DefaultTransactionContext.java Normal file
View File

@ -0,0 +1,74 @@
/**
* Copyright (c) 2009-2014, Data Geekery GmbH (http://www.datageekery.com)
* All rights reserved.
*
* This work is dual-licensed
* - under the Apache Software License 2.0 (the "ASL")
* - under the jOOQ License and Maintenance Agreement (the "jOOQ License")
* =============================================================================
* You may choose which license applies to you:
*
* - If you're using this work with Open Source databases, you may choose
* either ASL or jOOQ License.
* - If you're using this work with at least one commercial database, you must
* choose jOOQ License
*
* For more information, please visit http://www.jooq.org/licenses
*
* Apache Software License 2.0:
* -----------------------------------------------------------------------------
* 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.
*
* jOOQ License and Maintenance Agreement:
* -----------------------------------------------------------------------------
* Data Geekery grants the Customer the non-exclusive, timely limited and
* non-transferable license to install and use the Software under the terms of
* the jOOQ License and Maintenance Agreement.
*
* This library is distributed with a LIMITED WARRANTY. See the jOOQ License
* and Maintenance Agreement for more details: http://www.jooq.org/licensing
*/
package org.jooq.impl;
import org.jooq.Configuration;
import org.jooq.Transaction;
import org.jooq.TransactionContext;
/**
* @author Lukas Eder
*/
class DefaultTransactionContext implements TransactionContext {
private final Configuration configuration;
Transaction transaction;
Exception cause;
DefaultTransactionContext(Configuration configuration) {
this.configuration = configuration;
}
@Override
public final Configuration configuration() {
return configuration;
}
@Override
public final Transaction transaction() {
return transaction;
}
@Override
public final Exception cause() {
return cause;
}
}

68
jOOQ/src/main/java/org/jooq/impl/DefaultTransactionProvider.java
View File

@ -41,6 +41,7 @@
package org.jooq.impl;
import static org.jooq.impl.Utils.DATA_DEFAULT_TRANSACTION_PROVIDER_AUTOCOMMIT;
import static org.jooq.impl.Utils.DATA_DEFAULT_TRANSACTION_PROVIDER_CONNECTION;
import static org.jooq.impl.Utils.DATA_DEFAULT_TRANSACTION_PROVIDER_SAVEPOINTS;
import java.sql.Connection;
@ -48,7 +49,9 @@ import java.sql.Savepoint;
import java.util.Stack;
import org.jooq.Configuration;
import org.jooq.ConnectionProvider;
import org.jooq.Transaction;
import org.jooq.TransactionContext;
import org.jooq.TransactionProvider;
/**
@ -57,17 +60,18 @@ import org.jooq.TransactionProvider;
* This implementation is entirely based on JDBC transactions and is intended to
* work with {@link DefaultConnectionProvider} (which is implicitly created when
* using {@link DSL#using(Connection)}). It supports nested transactions by
* modelling them implicitly with JDBC {@link Savepoint}s, if supported by the
* modeling them implicitly with JDBC {@link Savepoint}s, if supported by the
* underlying JDBC driver.
*
* @author Lukas Eder
*/
public class DefaultTransactionProvider implements TransactionProvider {
private final DefaultConnectionProvider connection;
private final ConnectionProvider provider;
private Connection connection;
public DefaultTransactionProvider(DefaultConnectionProvider connection) {
this.connection = connection;
public DefaultTransactionProvider(ConnectionProvider provider) {
this.provider = provider;
}
@SuppressWarnings("unchecked")
@ -86,35 +90,46 @@ public class DefaultTransactionProvider implements TransactionProvider {
Boolean autoCommit = (Boolean) configuration.data(DATA_DEFAULT_TRANSACTION_PROVIDER_AUTOCOMMIT);
if (autoCommit == null) {
autoCommit = connection.getAutoCommit();
autoCommit = connection(configuration).getAutoCommit();
configuration.data(DATA_DEFAULT_TRANSACTION_PROVIDER_AUTOCOMMIT, autoCommit);
}
return autoCommit;
}
private final DefaultConnectionProvider connection(Configuration configuration) {
DefaultConnectionProvider connectionWrapper = (DefaultConnectionProvider) configuration.data(DATA_DEFAULT_TRANSACTION_PROVIDER_CONNECTION);
if (connectionWrapper == null) {
connectionWrapper = new DefaultConnectionProvider(connection);
configuration.data(DATA_DEFAULT_TRANSACTION_PROVIDER_CONNECTION, connectionWrapper);
}
return connectionWrapper;
}
@Override
public final Transaction begin(Configuration configuration) {
Stack<Savepoint> savepoints = savepoints(configuration);
public final Transaction begin(TransactionContext ctx) {
Stack<Savepoint> savepoints = savepoints(ctx.configuration());
// This is the top-level transaction
if (savepoints.isEmpty()) {
autoCommit(configuration, false);
brace(ctx.configuration(), true);
}
savepoints.push(connection.setSavepoint());
savepoints.push(connection(ctx.configuration()).setSavepoint());
return null;
}
@Override
public final void commit(Configuration configuration, Transaction transaction) {
Stack<Savepoint> savepoints = savepoints(configuration);
public final void commit(TransactionContext ctx) {
Stack<Savepoint> savepoints = savepoints(ctx.configuration());
savepoints.pop();
// This is the top-level transaction
if (savepoints.isEmpty()) {
connection.commit();
autoCommit(configuration, true);
connection(ctx.configuration()).commit();
brace(ctx.configuration(), false);
}
// Nested commits have no effect
@ -123,17 +138,17 @@ public class DefaultTransactionProvider implements TransactionProvider {
}
@Override
public final void rollback(Configuration configuration, Transaction transaction, Exception cause) {
Stack<Savepoint> savepoints = savepoints(configuration);
public final void rollback(TransactionContext ctx) {
Stack<Savepoint> savepoints = savepoints(ctx.configuration());
Savepoint savepoint = savepoints.pop();
try {
connection.rollback(savepoint);
connection(ctx.configuration()).rollback(savepoint);
}
finally {
if (savepoints.isEmpty())
autoCommit(configuration, true);
brace(ctx.configuration(), false);
}
}
@ -141,13 +156,24 @@ public class DefaultTransactionProvider implements TransactionProvider {
* Ensure an <code>autoCommit</code> value on the connection, if it was set
* to <code>true</code>, originally.
*/
private void autoCommit(Configuration configuration, boolean newValue) {
boolean oldValue = autoCommit(configuration);
private void brace(Configuration configuration, boolean start) {
if (start) {
connection = provider.acquire();
}
boolean autoCommit = autoCommit(configuration);
// Transactions cannot run with autoCommit = true. Change the value for
// the duration of a transaction
if (oldValue == true) {
connection.setAutoCommit(newValue);
if (autoCommit == true) {
connection(configuration).setAutoCommit(!start);
}
if (!start) {
provider.release(connection);
connection = null;
configuration.data().remove(DATA_DEFAULT_TRANSACTION_PROVIDER_CONNECTION);
}
}
}

1
jOOQ/src/main/java/org/jooq/impl/MergeImpl.java
View File

@ -69,7 +69,6 @@ import java.util.List;
import java.util.Map;
import java.util.Set;
import org.jooq.BindContext;
import org.jooq.Clause;
import org.jooq.Condition;
import org.jooq.Configuration;

8
jOOQ/src/main/java/org/jooq/impl/NoTransactionProvider.java
View File

@ -40,8 +40,8 @@
*/
package org.jooq.impl;
import org.jooq.Configuration;
import org.jooq.Transaction;
import org.jooq.TransactionContext;
import org.jooq.TransactionProvider;
/**
@ -52,17 +52,17 @@ import org.jooq.TransactionProvider;
public class NoTransactionProvider implements TransactionProvider {
@Override
public final Transaction begin(Configuration configuration) {
public final Transaction begin(TransactionContext ctx) {
throw new UnsupportedOperationException("No transaction provider configured");
}
@Override
public final void commit(Configuration configuration, Transaction transaction) {
public final void commit(TransactionContext ctx) {
throw new UnsupportedOperationException("No transaction provider configured");
}
@Override
public final void rollback(Configuration configuration, Transaction transaction, Exception cause) {
public final void rollback(TransactionContext ctx) {
throw new UnsupportedOperationException("No transaction provider configured");
}
}

6
jOOQ/src/main/java/org/jooq/impl/Utils.java
View File

@ -261,6 +261,12 @@ final class Utils {
*/
static final String DATA_DEFAULT_TRANSACTION_PROVIDER_SAVEPOINTS = "org.jooq.configuration.default-transaction-provider-savepoints";
/**
* [#1629] The {@link DefaultConnectionProvider} instance to be used during
* the transaction.
*/
static final String DATA_DEFAULT_TRANSACTION_PROVIDER_CONNECTION = "org.jooq.configuration.default-transaction-provider-connection-provider";
/**
* [#2965] These are {@link ConcurrentHashMap}s containing caches for
* reflection information.