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Merged
merged 3 commits into from
Apr 22, 2025
Merged

Start JDBC transactions only when there is an update #3330

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a1ed020
Only start a new transaction if there's a delta for session updates w…
ryanrupp Jan 22, 2025
0e64e82
Micro-optimization to try to right size the array
ryanrupp Jan 22, 2025
b516013
Fix Formatting & Checkstyle
rwinch Apr 22, 2025
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68 changes: 40 additions & 28 deletions ...ion-jdbc/src/main/java/org/springframework/session/jdbc/JdbcIndexedSessionRepository.java
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Original file line number Diff line number Diff line change
Expand Up @@ -907,8 +907,9 @@ private void save() {
});
}
else {
JdbcIndexedSessionRepository.this.transactionOperations.executeWithoutResult((status) -> {
if (JdbcSession.this.changed) {
List<Runnable> deltaActions = JdbcSession.this.changed ? new ArrayList<>(4) : new ArrayList<>();
if (JdbcSession.this.changed) {
deltaActions.add(() -> {
Map<String, String> indexes = JdbcIndexedSessionRepository.this.indexResolver
.resolveIndexesFor(JdbcSession.this);
JdbcIndexedSessionRepository.this.jdbcOperations
Expand All @@ -920,32 +921,43 @@ private void save() {
ps.setString(5, indexes.get(PRINCIPAL_NAME_INDEX_NAME));
ps.setString(6, JdbcSession.this.primaryKey);
});
}
List<String> addedAttributeNames = JdbcSession.this.delta.entrySet()
.stream()
.filter((entry) -> entry.getValue() == DeltaValue.ADDED)
.map(Map.Entry::getKey)
.collect(Collectors.toList());
if (!addedAttributeNames.isEmpty()) {
insertSessionAttributes(JdbcSession.this, addedAttributeNames);
}
List<String> updatedAttributeNames = JdbcSession.this.delta.entrySet()
.stream()
.filter((entry) -> entry.getValue() == DeltaValue.UPDATED)
.map(Map.Entry::getKey)
.collect(Collectors.toList());
if (!updatedAttributeNames.isEmpty()) {
updateSessionAttributes(JdbcSession.this, updatedAttributeNames);
}
List<String> removedAttributeNames = JdbcSession.this.delta.entrySet()
.stream()
.filter((entry) -> entry.getValue() == DeltaValue.REMOVED)
.map(Map.Entry::getKey)
.collect(Collectors.toList());
if (!removedAttributeNames.isEmpty()) {
deleteSessionAttributes(JdbcSession.this, removedAttributeNames);
}
});
});
}

List<String> addedAttributeNames = JdbcSession.this.delta.entrySet()
.stream()
.filter((entry) -> entry.getValue() == DeltaValue.ADDED)
.map(Map.Entry::getKey)
.collect(Collectors.toList());
if (!addedAttributeNames.isEmpty()) {
deltaActions.add(() -> insertSessionAttributes(JdbcSession.this, addedAttributeNames));
}

List<String> updatedAttributeNames = JdbcSession.this.delta.entrySet()
.stream()
.filter((entry) -> entry.getValue() == DeltaValue.UPDATED)
.map(Map.Entry::getKey)
.collect(Collectors.toList());
if (!updatedAttributeNames.isEmpty()) {
deltaActions.add(() -> updateSessionAttributes(JdbcSession.this, updatedAttributeNames));
}

List<String> removedAttributeNames = JdbcSession.this.delta.entrySet()
.stream()
.filter((entry) -> entry.getValue() == DeltaValue.REMOVED)
.map(Map.Entry::getKey)
.collect(Collectors.toList());
if (!removedAttributeNames.isEmpty()) {
deltaActions.add(() -> deleteSessionAttributes(JdbcSession.this, removedAttributeNames));
}

if (!deltaActions.isEmpty()) {
JdbcIndexedSessionRepository.this.transactionOperations.executeWithoutResult((status) -> {
for (Runnable action : deltaActions) {
action.run();
}
});
}
}
clearChangeFlags();
}
Expand Down
24 changes: 22 additions & 2 deletions ...dbc/src/test/java/org/springframework/session/jdbc/JdbcIndexedSessionRepositoryTests.java
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.function.Consumer;
import java.util.function.Supplier;

import org.junit.jupiter.api.BeforeEach;
Expand All @@ -48,17 +49,21 @@
import org.springframework.session.SaveMode;
import org.springframework.session.Session;
import org.springframework.session.jdbc.JdbcIndexedSessionRepository.JdbcSession;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.support.TransactionCallback;
import org.springframework.transaction.support.TransactionOperations;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyLong;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.ArgumentMatchers.isA;
import static org.mockito.ArgumentMatchers.matches;
import static org.mockito.ArgumentMatchers.startsWith;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.atLeastOnce;
import static org.mockito.Mockito.lenient;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
Expand All @@ -78,12 +83,26 @@ class JdbcIndexedSessionRepositoryTests {
@Mock
private JdbcOperations jdbcOperations;

@Mock
private TransactionOperations transactionOperations;

private JdbcIndexedSessionRepository repository;

@BeforeEach
void setUp() {
this.repository = new JdbcIndexedSessionRepository(this.jdbcOperations,
TransactionOperations.withoutTransaction());
// Mock transaction callbacks to the real consumer
lenient().doAnswer((answer) -> {
answer.getArgument(0, Consumer.class).accept(mock(TransactionStatus.class));
return null;
}).when(this.transactionOperations).executeWithoutResult(any());

lenient()
.doAnswer((answer) -> answer.getArgument(0, TransactionCallback.class)
.doInTransaction(mock(TransactionStatus.class)))
.when(this.transactionOperations)
.execute(any());

this.repository = new JdbcIndexedSessionRepository(this.jdbcOperations, this.transactionOperations);
}

@Test
Expand Down Expand Up @@ -467,6 +486,7 @@ void saveUpdatedAddAndRemoveAttribute() {

assertThat(session.isNew()).isFalse();
verifyNoMoreInteractions(this.jdbcOperations);
verifyNoMoreInteractions(this.transactionOperations);
}

@Test // gh-1070
Expand Down
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