DefaultTransactionAttribute stores descriptor (method identification)

Issue: SPR-14760

spring-core/src/main/java/org/springframework/util/ClassUtils.java

@@ -511,8 +511,21 @@ public abstract class ClassUtils {
 	 * @return the qualified name of the method
 	 */
 	public static String getQualifiedMethodName(Method method) {
+		return getQualifiedMethodName(method, null);
+	}
+
+	/**
+	 * Return the qualified name of the given method, consisting of
+	 * fully qualified interface/class name + "." + method name.
+	 * @param method the method
+	 * @param clazz the clazz that the method is being invoked on
+	 * (may be {@code null} to indicate the method's declaring class)
+	 * @return the qualified name of the method
+	 * @since 4.3.4
+	 */
+	public static String getQualifiedMethodName(Method method, Class<?> clazz) {
 		Assert.notNull(method, "Method must not be null");
-		return method.getDeclaringClass().getName() + "." + method.getName();
+		return (clazz != null ? clazz : method.getDeclaringClass()).getName() + '.' + method.getName();
 	}
 
 	/**
@@ -640,10 +653,10 @@ public abstract class ClassUtils {
 				return candidates.iterator().next();
 			}
 			else if (candidates.isEmpty()) {
-				throw new IllegalStateException("Expected method not found: " + clazz + "." + methodName);
+				throw new IllegalStateException("Expected method not found: " + clazz.getName() + '.' + methodName);
 			}
 			else {
-				throw new IllegalStateException("No unique method found: " + clazz + "." + methodName);
+				throw new IllegalStateException("No unique method found: " + clazz.getName() + '.' + methodName);
 			}
 		}
 	}
@@ -980,7 +993,7 @@ public abstract class ClassUtils {
 	public static String addResourcePathToPackagePath(Class<?> clazz, String resourceName) {
 		Assert.notNull(resourceName, "Resource name must not be null");
 		if (!resourceName.startsWith("/")) {
-			return classPackageAsResourcePath(clazz) + "/" + resourceName;
+			return classPackageAsResourcePath(clazz) + '/' + resourceName;
 		}
 		return classPackageAsResourcePath(clazz) + resourceName;
 	}

spring-tx/src/main/java/org/springframework/transaction/interceptor/AbstractFallbackTransactionAttributeSource.java

@@ -97,20 +97,22 @@ public abstract class AbstractFallbackTransactionAttributeSource implements Tran
 		}
 		else {
 			// We need to work it out.
-			TransactionAttribute txAtt = computeTransactionAttribute(method, targetClass);
+			TransactionAttribute txAttr = computeTransactionAttribute(method, targetClass);
 			// Put it in the cache.
-			if (txAtt == null) {
+			if (txAttr == null) {
 				this.attributeCache.put(cacheKey, NULL_TRANSACTION_ATTRIBUTE);
 			}
 			else {
+				String methodIdentification = ClassUtils.getQualifiedMethodName(method, targetClass);
+				if (txAttr instanceof DefaultTransactionAttribute) {
+					((DefaultTransactionAttribute) txAttr).setDescriptor(methodIdentification);
+				}
 				if (logger.isDebugEnabled()) {
-					Class<?> classToLog = (targetClass != null ? targetClass : method.getDeclaringClass());
-					logger.debug("Adding transactional method '" + classToLog.getSimpleName() + "." +
-							method.getName() + "' with attribute: " + txAtt);
+					logger.debug("Adding transactional method '" + methodIdentification + "' with attribute: " + txAttr);
 				}
-				this.attributeCache.put(cacheKey, txAtt);
+				this.attributeCache.put(cacheKey, txAttr);
 			}
-			return txAtt;
+			return txAttr;
 		}
 	}
 
@@ -148,27 +150,27 @@ public abstract class AbstractFallbackTransactionAttributeSource implements Tran
 		specificMethod = BridgeMethodResolver.findBridgedMethod(specificMethod);
 
 		// First try is the method in the target class.
-		TransactionAttribute txAtt = findTransactionAttribute(specificMethod);
-		if (txAtt != null) {
-			return txAtt;
+		TransactionAttribute txAttr = findTransactionAttribute(specificMethod);
+		if (txAttr != null) {
+			return txAttr;
 		}
 
 		// Second try is the transaction attribute on the target class.
-		txAtt = findTransactionAttribute(specificMethod.getDeclaringClass());
-		if (txAtt != null && ClassUtils.isUserLevelMethod(method)) {
-			return txAtt;
+		txAttr = findTransactionAttribute(specificMethod.getDeclaringClass());
+		if (txAttr != null && ClassUtils.isUserLevelMethod(method)) {
+			return txAttr;
 		}
 
 		if (specificMethod != method) {
 			// Fallback is to look at the original method.
-			txAtt = findTransactionAttribute(method);
-			if (txAtt != null) {
-				return txAtt;
+			txAttr = findTransactionAttribute(method);
+			if (txAttr != null) {
+				return txAttr;
 			}
 			// Last fallback is the class of the original method.
-			txAtt = findTransactionAttribute(method.getDeclaringClass());
-			if (txAtt != null && ClassUtils.isUserLevelMethod(method)) {
-				return txAtt;
+			txAttr = findTransactionAttribute(method.getDeclaringClass());
+			if (txAttr != null && ClassUtils.isUserLevelMethod(method)) {
+				return txAttr;
 			}
 		}
 

spring-tx/src/main/java/org/springframework/transaction/interceptor/DefaultTransactionAttribute.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2016 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.
@@ -19,10 +19,11 @@ package org.springframework.transaction.interceptor;
 import org.springframework.transaction.support.DefaultTransactionDefinition;
 
 /**
- * Transaction attribute that takes the EJB approach to rolling
- * back on runtime, but not checked, exceptions.
+ * Spring's common transaction attribute implementation.
+ * Rolls back on runtime, but not checked, exceptions by default.
  *
  * @author Rod Johnson
+ * @author Juergen Hoeller
  * @since 16.03.2003
  */
 @SuppressWarnings("serial")
@@ -30,6 +31,8 @@ public class DefaultTransactionAttribute extends DefaultTransactionDefinition im
 
 	private String qualifier;
 
+	private String descriptor;
+
 
 	/**
 	 * Create a new DefaultTransactionAttribute, with default settings.
@@ -74,6 +77,7 @@ public class DefaultTransactionAttribute extends DefaultTransactionDefinition im
 	 * Associate a qualifier value with this transaction attribute.
 	 * <p>This may be used for choosing a corresponding transaction manager
 	 * to process this specific transaction.
+	 * @since 3.0
 	 */
 	public void setQualifier(String qualifier) {
 		this.qualifier = qualifier;
@@ -81,12 +85,31 @@ public class DefaultTransactionAttribute extends DefaultTransactionDefinition im
 
 	/**
 	 * Return a qualifier value associated with this transaction attribute.
+	 * @since 3.0
 	 */
 	@Override
 	public String getQualifier() {
 		return this.qualifier;
 	}
 
+	/**
+	 * Set a descriptor for this transaction attribute,
+	 * e.g. indicating where the attribute is applying.
+	 * @since 4.3.4
+	 */
+	public void setDescriptor(String descriptor) {
+		this.descriptor = descriptor;
+	}
+
+	/**
+	 * Return a descriptor for this transaction attribute,
+	 * or {@code null} if none.
+	 * @since 4.3.4
+	 */
+	public String getDescriptor() {
+		return this.descriptor;
+	}
+
 	/**
 	 * The default behavior is as with EJB: rollback on unchecked exception.
 	 * Additionally attempt to rollback on Error.

spring-tx/src/main/java/org/springframework/transaction/interceptor/TransactionAspectSupport.java

@@ -34,6 +34,7 @@ import org.springframework.transaction.TransactionStatus;
 import org.springframework.transaction.TransactionSystemException;
 import org.springframework.transaction.support.CallbackPreferringPlatformTransactionManager;
 import org.springframework.transaction.support.TransactionCallback;
+import org.springframework.util.ClassUtils;
 import org.springframework.util.ConcurrentReferenceHashMap;
 import org.springframework.util.StringUtils;
 
@@ -269,7 +270,7 @@ public abstract class TransactionAspectSupport implements BeanFactoryAware, Init
 		// If the transaction attribute is null, the method is non-transactional.
 		final TransactionAttribute txAttr = getTransactionAttributeSource().getTransactionAttribute(method, targetClass);
 		final PlatformTransactionManager tm = determineTransactionManager(txAttr);
-		final String joinpointIdentification = methodIdentification(method, targetClass);
+		final String joinpointIdentification = methodIdentification(method, targetClass, txAttr);
 
 		if (txAttr == null || !(tm instanceof CallbackPreferringPlatformTransactionManager)) {
 			// Standard transaction demarcation with getTransaction and commit/rollback calls.
@@ -385,17 +386,33 @@ public abstract class TransactionAspectSupport implements BeanFactoryAware, Init
 		return txManager;
 	}
 
+	private String methodIdentification(Method method, Class<?> targetClass, TransactionAttribute txAttr) {
+		String methodIdentification = methodIdentification(method, targetClass);
+		if (methodIdentification == null) {
+			if (txAttr instanceof DefaultTransactionAttribute) {
+				methodIdentification = ((DefaultTransactionAttribute) txAttr).getDescriptor();
+			}
+			if (methodIdentification == null) {
+				methodIdentification = ClassUtils.getQualifiedMethodName(method, targetClass);
+			}
+		}
+		return methodIdentification;
+	}
+
 	/**
 	 * Convenience method to return a String representation of this Method
 	 * for use in logging. Can be overridden in subclasses to provide a
 	 * different identifier for the given method.
+	 * <p>The default implementation returns {@code null}, indicating the
+	 * use of {@link DefaultTransactionAttribute#getDescriptor()} instead,
+	 * ending up as {@link ClassUtils#getQualifiedMethodName(Method, Class)}.
 	 * @param method the method we're interested in
 	 * @param targetClass the class that the method is being invoked on
 	 * @return a String representation identifying this method
 	 * @see org.springframework.util.ClassUtils#getQualifiedMethodName
 	 */
 	protected String methodIdentification(Method method, Class<?> targetClass) {
-		return (targetClass != null ? targetClass : method.getDeclaringClass()).getName() + "." + method.getName();
+		return null;
 	}
 
 	/**

spring-tx/src/test/java/org/springframework/transaction/interceptor/MapTransactionAttributeSource.java

@@ -31,12 +31,12 @@ public class MapTransactionAttributeSource extends AbstractFallbackTransactionAt
 	private final Map<Object, TransactionAttribute> attributeMap = new HashMap<>();
 
 
-	public void register(Method method, TransactionAttribute txAtt) {
-		this.attributeMap.put(method, txAtt);
+	public void register(Method method, TransactionAttribute txAttr) {
+		this.attributeMap.put(method, txAttr);
 	}
 
-	public void register(Class<?> clazz, TransactionAttribute txAtt) {
-		this.attributeMap.put(clazz, txAtt);
+	public void register(Class<?> clazz, TransactionAttribute txAttr) {
+		this.attributeMap.put(clazz, txAttr);
 	}