Add configuration option to disable usage of JSqlParser for native qu…

…eries.

This commit introduces the spring.data.jpa.query.native.parser property that allows to switch native query parsing to the default internal parser for scenarios where JSqlParser is on the classpath but should not be used by spring-data.

Closes #2989
Original pull request: #3623

spring-data-jpa/pom.xml

@@ -86,6 +86,12 @@
 			<optional>true</optional>
 		</dependency>
 
+		<dependency>
+			<groupId>org.junit.platform</groupId>
+			<artifactId>junit-platform-launcher</artifactId>
+			<scope>test</scope>
+		</dependency>
+
 		<dependency>
 			<groupId>org.hsqldb</groupId>
 			<artifactId>hsqldb</artifactId>

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/query/QueryEnhancerFactory.java

@@ -17,29 +17,29 @@
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.springframework.core.SpringProperties;
 import org.springframework.data.jpa.provider.PersistenceProvider;
+import org.springframework.lang.Nullable;
 import org.springframework.util.ClassUtils;
+import org.springframework.util.StringUtils;
 
 /**
  * Encapsulates different strategies for the creation of a {@link QueryEnhancer} from a {@link DeclaredQuery}.
  *
  * @author Diego Krupitza
  * @author Greg Turnquist
  * @author Mark Paluch
+ * @author Christoph Strobl
  * @since 2.7.0
  */
 public final class QueryEnhancerFactory {
 
 	private static final Log LOG = LogFactory.getLog(QueryEnhancerFactory.class);
-
-	private static final boolean jSqlParserPresent = ClassUtils.isPresent("net.sf.jsqlparser.parser.JSqlParser",
-			QueryEnhancerFactory.class.getClassLoader());
+	private static final NativeQueryEnhancer NATIVE_QUERY_ENHANCER;
 
 	static {
 
-		if (jSqlParserPresent) {
-			LOG.info("JSqlParser is in classpath; If applicable, JSqlParser will be used");
-		}
+		NATIVE_QUERY_ENHANCER = NativeQueryEnhancer.select(QueryEnhancerFactory.class.getClassLoader());
 
 		if (PersistenceProvider.ECLIPSELINK.isPresent()) {
 			LOG.info("EclipseLink is in classpath; If applicable, EQL parser will be used.");
@@ -48,7 +48,6 @@ public final class QueryEnhancerFactory {
 		if (PersistenceProvider.HIBERNATE.isPresent()) {
 			LOG.info("Hibernate is in classpath; If applicable, HQL parser will be used.");
 		}
-
 	}
 
 	private QueryEnhancerFactory() {}
@@ -62,15 +61,7 @@ private QueryEnhancerFactory() {}
 	public static QueryEnhancer forQuery(DeclaredQuery query) {
 
 		if (query.isNativeQuery()) {
-
-			if (jSqlParserPresent) {
-				/*
-				 * If JSqlParser fails, throw some alert signaling that people should write a custom Impl.
-				 */
-				return new JSqlParserQueryEnhancer(query);
-			}
-
-			return new DefaultQueryEnhancer(query);
+			return getNativeQueryEnhancer(query);
 		}
 
 		if (PersistenceProvider.HIBERNATE.isPresent()) {
@@ -82,4 +73,56 @@ public static QueryEnhancer forQuery(DeclaredQuery query) {
 		}
 	}
 
+	/**
+	 * Get the native query enhancer for the given {@link DeclaredQuery query} based on {@link #NATIVE_QUERY_ENHANCER}.
+	 *
+	 * @param query the declared query.
+	 * @return new instance of {@link QueryEnhancer}.
+	 */
+	private static QueryEnhancer getNativeQueryEnhancer(DeclaredQuery query) {
+
+		if (NATIVE_QUERY_ENHANCER.equals(NativeQueryEnhancer.JSQL)) {
+			return new JSqlParserQueryEnhancer(query);
+		}
+		return new DefaultQueryEnhancer(query);
+	}
+
+	/**
+	 * Possible choices for the {@link #NATIVE_PARSER_PROPERTY}. Read current selection via {@link #select(ClassLoader)}.
+	 */
+	enum NativeQueryEnhancer {
+
+		AUTO, DEFAULT, JSQL;
+
+		static final String NATIVE_PARSER_PROPERTY = "spring.data.jpa.query.native.parser";
+
+		private static NativeQueryEnhancer from(@Nullable String name) {
+			if (!StringUtils.hasText(name)) {
+				return AUTO;
+			}
+			return NativeQueryEnhancer.valueOf(name.toUpperCase());
+		}
+
+		/**
+		 * @param classLoader ClassLoader to look up available libraries.
+		 * @return the current selection considering classpath avialability and user selection via
+		 *         {@link #NATIVE_PARSER_PROPERTY}.
+		 */
+		static NativeQueryEnhancer select(ClassLoader classLoader) {
+
+			if (!ClassUtils.isPresent("net.sf.jsqlparser.parser.JSqlParser", classLoader)) {
+				return NativeQueryEnhancer.DEFAULT;
+			}
+
+			NativeQueryEnhancer selected = NativeQueryEnhancer.from(SpringProperties.getProperty(NATIVE_PARSER_PROPERTY));
+			if (selected.equals(NativeQueryEnhancer.AUTO) || selected.equals(NativeQueryEnhancer.JSQL)) {
+				LOG.info("JSqlParser is in classpath; If applicable, JSqlParser will be used.");
+				return NativeQueryEnhancer.JSQL;
+			}
+
+			LOG.info("JSqlParser is in classpath but won't be used due to user choice.");
+			return selected;
+		}
+	}
+
 }

spring-data-jpa/src/test/java/org/springframework/data/jpa/repository/query/QueryEnhancerFactoryUnitTests.java

@@ -15,15 +15,24 @@
  */
 package org.springframework.data.jpa.repository.query;
 
-import static org.assertj.core.api.Assertions.*;
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.stream.Stream;
 
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+import org.springframework.data.jpa.repository.query.QueryEnhancerFactory.NativeQueryEnhancer;
+import org.springframework.data.jpa.util.ClassPathExclusions;
+import org.springframework.lang.Nullable;
 
 /**
  * Unit tests for {@link QueryEnhancerFactory}.
  *
  * @author Diego Krupitza
  * @author Greg Turnquist
+ * @author Christoph Strobl
  */
 class QueryEnhancerFactoryUnitTests {
 
@@ -52,4 +61,56 @@ void createsJSqlImplementationForNativeQuery() {
 		assertThat(queryEnhancer) //
 				.isInstanceOf(JSqlParserQueryEnhancer.class);
 	}
+
+	@ParameterizedTest // GH-2989
+	@MethodSource("nativeEnhancerSelectionArgs")
+	void createsNativeImplementationAccordingToUserChoice(@Nullable String selection, NativeQueryEnhancer enhancer) {
+
+		withSystemProperty(NativeQueryEnhancer.NATIVE_PARSER_PROPERTY, selection, () -> {
+			assertThat(NativeQueryEnhancer.select(this.getClass().getClassLoader())).isEqualTo(enhancer);
+		});
+	}
+
+	@Test // GH-2989
+	@ClassPathExclusions(packages = { "net.sf.jsqlparser.parser" })
+	void selectedDefaultImplementationIfJsqlNotAvailable() {
+
+		assertThat(assertThat(NativeQueryEnhancer.select(this.getClass().getClassLoader()))
+				.isEqualTo(NativeQueryEnhancer.DEFAULT));
+	}
+
+	@Test // GH-2989
+	@ClassPathExclusions(packages = { "net.sf.jsqlparser.parser" })
+	void selectedDefaultImplementationIfJsqlNotAvailableEvenIfExplicitlyStated/* or should we raise an error? */() {
+
+		withSystemProperty(NativeQueryEnhancer.NATIVE_PARSER_PROPERTY, "jsql", () -> {
+			assertThat(NativeQueryEnhancer.select(this.getClass().getClassLoader())).isEqualTo(NativeQueryEnhancer.DEFAULT);
+		});
+	}
+
+	void withSystemProperty(String property, @Nullable String value, Runnable exeution) {
+
+		String currentValue = System.getProperty(property);
+		if (value != null) {
+			System.setProperty(property, value);
+		} else {
+			System.clearProperty(property);
+		}
+		try {
+			exeution.run();
+		} finally {
+			if (currentValue != null) {
+				System.setProperty(property, currentValue);
+			} else {
+				System.clearProperty(property);
+			}
+		}
+
+	}
+
+	static Stream<Arguments> nativeEnhancerSelectionArgs() {
+		return Stream.of(Arguments.of(null, NativeQueryEnhancer.JSQL), Arguments.of("", NativeQueryEnhancer.JSQL),
+				Arguments.of("auto", NativeQueryEnhancer.JSQL), Arguments.of("default", NativeQueryEnhancer.DEFAULT),
+				Arguments.of("jsql", NativeQueryEnhancer.JSQL));
+	}
 }

spring-data-jpa/src/test/java/org/springframework/data/jpa/util/ClassPathExclusions.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2024 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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 org.springframework.data.jpa.util;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.junit.jupiter.api.extension.ExtendWith;
+
+/**
+ * Annotation used to exclude entries from the classpath. Simplified version of <a href=
+ * "https://github.com/spring-projects/spring-boot/blob/main/spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/classpath/ClassPathExclusions.java">ClassPathExclusions</a>.
+ *
+ * @author Christoph Strobl
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ ElementType.TYPE, ElementType.METHOD })
+@Documented
+@ExtendWith(ClassPathExclusionsExtension.class)
+public @interface ClassPathExclusions {
+
+	/**
+	 * One or more packages that should be excluded from the classpath.
+	 *
+	 * @return the excluded packages
+	 */
+	String[] packages();
+
+}

spring-data-jpa/src/test/java/org/springframework/data/jpa/util/ClassPathExclusionsExtension.java

@@ -0,0 +1,130 @@
+/*
+ * Copyright 2024 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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 org.springframework.data.jpa.util;
+
+import java.lang.reflect.Method;
+
+import org.junit.jupiter.api.extension.ExtensionContext;
+import org.junit.jupiter.api.extension.InvocationInterceptor;
+import org.junit.jupiter.api.extension.ReflectiveInvocationContext;
+import org.junit.platform.engine.discovery.DiscoverySelectors;
+import org.junit.platform.launcher.Launcher;
+import org.junit.platform.launcher.LauncherDiscoveryRequest;
+import org.junit.platform.launcher.TestPlan;
+import org.junit.platform.launcher.core.LauncherDiscoveryRequestBuilder;
+import org.junit.platform.launcher.core.LauncherFactory;
+import org.junit.platform.launcher.listeners.SummaryGeneratingListener;
+import org.junit.platform.launcher.listeners.TestExecutionSummary;
+import org.springframework.util.CollectionUtils;
+
+/**
+ * Simplified version of <a href=
+ * "https://github.com/spring-projects/spring-boot/blob/main/spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/classpath/ModifiedClassPathClassLoader.java">ModifiedClassPathExtension</a>.
+ *
+ * @author Christoph Strobl
+ */
+class ClassPathExclusionsExtension implements InvocationInterceptor {
+
+	@Override
+	public void interceptBeforeAllMethod(Invocation<Void> invocation,
+			ReflectiveInvocationContext<Method> invocationContext, ExtensionContext extensionContext) throws Throwable {
+		intercept(invocation, extensionContext);
+	}
+
+	@Override
+	public void interceptBeforeEachMethod(Invocation<Void> invocation,
+			ReflectiveInvocationContext<Method> invocationContext, ExtensionContext extensionContext) throws Throwable {
+		intercept(invocation, extensionContext);
+	}
+
+	@Override
+	public void interceptAfterEachMethod(Invocation<Void> invocation,
+			ReflectiveInvocationContext<Method> invocationContext, ExtensionContext extensionContext) throws Throwable {
+		intercept(invocation, extensionContext);
+	}
+
+	@Override
+	public void interceptAfterAllMethod(Invocation<Void> invocation,
+			ReflectiveInvocationContext<Method> invocationContext, ExtensionContext extensionContext) throws Throwable {
+		intercept(invocation, extensionContext);
+	}
+
+	@Override
+	public void interceptTestMethod(Invocation<Void> invocation, ReflectiveInvocationContext<Method> invocationContext,
+			ExtensionContext extensionContext) throws Throwable {
+		interceptMethod(invocation, invocationContext, extensionContext);
+	}
+
+	@Override
+	public void interceptTestTemplateMethod(Invocation<Void> invocation,
+			ReflectiveInvocationContext<Method> invocationContext, ExtensionContext extensionContext) throws Throwable {
+		interceptMethod(invocation, invocationContext, extensionContext);
+	}
+
+	private void interceptMethod(Invocation<Void> invocation, ReflectiveInvocationContext<Method> invocationContext,
+			ExtensionContext extensionContext) throws Throwable {
+
+		if (isModifiedClassPathClassLoader(extensionContext)) {
+			invocation.proceed();
+			return;
+		}
+
+		Class<?> testClass = extensionContext.getRequiredTestClass();
+		Method testMethod = invocationContext.getExecutable();
+		PackageExcludingClassLoader modifiedClassLoader = PackageExcludingClassLoader.get(testClass, testMethod);
+		if (modifiedClassLoader == null) {
+			invocation.proceed();
+			return;
+		}
+		invocation.skip();
+		ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();
+		Thread.currentThread().setContextClassLoader(modifiedClassLoader);
+		try {
+			runTest(extensionContext.getUniqueId());
+		} finally {
+			Thread.currentThread().setContextClassLoader(originalClassLoader);
+		}
+	}
+
+	private void runTest(String testId) throws Throwable {
+
+		LauncherDiscoveryRequest request = LauncherDiscoveryRequestBuilder.request()
+				.selectors(DiscoverySelectors.selectUniqueId(testId)).build();
+		Launcher launcher = LauncherFactory.create();
+		TestPlan testPlan = launcher.discover(request);
+		SummaryGeneratingListener listener = new SummaryGeneratingListener();
+		launcher.registerTestExecutionListeners(listener);
+		launcher.execute(testPlan);
+		TestExecutionSummary summary = listener.getSummary();
+		if (!CollectionUtils.isEmpty(summary.getFailures())) {
+			throw summary.getFailures().get(0).getException();
+		}
+	}
+
+	private void intercept(Invocation<Void> invocation, ExtensionContext extensionContext) throws Throwable {
+		if (isModifiedClassPathClassLoader(extensionContext)) {
+			invocation.proceed();
+			return;
+		}
+		invocation.skip();
+	}
+
+	private boolean isModifiedClassPathClassLoader(ExtensionContext extensionContext) {
+		Class<?> testClass = extensionContext.getRequiredTestClass();
+		ClassLoader classLoader = testClass.getClassLoader();
+		return classLoader.getClass().getName().equals(PackageExcludingClassLoader.class.getName());
+	}
+}