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pull/22634/head
Juergen Hoeller 7 years ago
parent
88049e9b5c
commit
fe56aa6fa4
11 changed files with 382 additions and 362 deletions
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  1. 12
      spring-context/src/main/java/org/springframework/cache/interceptor/CacheAspectSupport.java
  2. 7
      spring-context/src/main/java/org/springframework/cache/interceptor/CacheOperationSource.java
  3. 9
      spring-context/src/main/java/org/springframework/cache/interceptor/CompositeCacheOperationSource.java
  4. 5
      spring-context/src/main/java/org/springframework/scripting/support/StandardScriptFactory.java
  5. 7
      spring-core/src/main/java/org/springframework/lang/NonNull.java
  6. 4
      spring-core/src/main/java/org/springframework/lang/NonNullFields.java
  7. 8
      spring-core/src/main/java/org/springframework/lang/Nullable.java
  8. 662
      spring-core/src/main/java/org/springframework/util/ReflectionUtils.java
  9. 12
      spring-tx/src/main/java/org/springframework/transaction/interceptor/CompositeTransactionAttributeSource.java
  10. 6
      spring-tx/src/main/java/org/springframework/transaction/interceptor/TransactionAttributeSource.java
  11. 8
      spring-web/src/main/java/org/springframework/http/server/ServerHttpRequest.java

12
spring-context/src/main/java/org/springframework/cache/interceptor/CacheAspectSupport.java vendored
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@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2018 the original author or authors. * Copyright 2002-2019 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -313,9 +313,9 @@ public abstract class CacheAspectSupport extends AbstractCacheInvoker
* @param expectedType type for the bean * @param expectedType type for the bean
* @return the bean matching that name * @return the bean matching that name
* @throws org.springframework.beans.factory.NoSuchBeanDefinitionException if such bean does not exist * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException if such bean does not exist
* @see CacheOperation#keyGenerator * @see CacheOperation#getKeyGenerator()
* @see CacheOperation#cacheManager * @see CacheOperation#getCacheManager()
* @see CacheOperation#cacheResolver * @see CacheOperation#getCacheResolver()
*/ */
protected <T> T getBean(String beanName, Class<T> expectedType) { protected <T> T getBean(String beanName, Class<T> expectedType) {
if (this.beanFactory == null) { if (this.beanFactory == null) {
@ -353,8 +353,8 @@ public abstract class CacheAspectSupport extends AbstractCacheInvoker
/** /**
* Execute the underlying operation (typically in case of cache miss) and return * Execute the underlying operation (typically in case of cache miss) and return
* the result of the invocation. If an exception occurs it will be wrapped in * the result of the invocation. If an exception occurs it will be wrapped in a
* a {@link CacheOperationInvoker.ThrowableWrapper}: the exception can be handled * {@link CacheOperationInvoker.ThrowableWrapper}: the exception can be handled
* or modified but it <em>must</em> be wrapped in a * or modified but it <em>must</em> be wrapped in a
* {@link CacheOperationInvoker.ThrowableWrapper} as well. * {@link CacheOperationInvoker.ThrowableWrapper} as well.
* @param invoker the invoker handling the operation being cached * @param invoker the invoker handling the operation being cached

7
spring-context/src/main/java/org/springframework/cache/interceptor/CacheOperationSource.java vendored
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@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2012 the original author or authors. * Copyright 2002-2019 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -27,13 +27,14 @@ import org.springframework.lang.Nullable;
* source level, or elsewhere. * source level, or elsewhere.
* *
* @author Costin Leau * @author Costin Leau
* @author Juergen Hoeller
* @since 3.1 * @since 3.1
*/ */
public interface CacheOperationSource { public interface CacheOperationSource {
/** /**
* Return the collection of cache operations for this method, or {@code null} * Return the collection of cache operations for this method,
* if the method contains no <em>cacheable</em> annotations. * or {@code null} if the method contains no <em>cacheable</em> annotations.
* @param method the method to introspect * @param method the method to introspect
* @param targetClass the target class (may be {@code null}, in which case * @param targetClass the target class (may be {@code null}, in which case
* the declaring class of the method must be used) * the declaring class of the method must be used)

9
spring-context/src/main/java/org/springframework/cache/interceptor/CompositeCacheOperationSource.java vendored
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@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2016 the original author or authors. * Copyright 2002-2019 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -29,6 +29,7 @@ import org.springframework.util.Assert;
* over a given array of {@code CacheOperationSource} instances. * over a given array of {@code CacheOperationSource} instances.
* *
* @author Costin Leau * @author Costin Leau
* @author Juergen Hoeller
* @since 3.1 * @since 3.1
*/ */
@SuppressWarnings("serial") @SuppressWarnings("serial")
@ -42,7 +43,7 @@ public class CompositeCacheOperationSource implements CacheOperationSource, Seri
* @param cacheOperationSources the CacheOperationSource instances to combine * @param cacheOperationSources the CacheOperationSource instances to combine
*/ */
public CompositeCacheOperationSource(CacheOperationSource... cacheOperationSources) { public CompositeCacheOperationSource(CacheOperationSource... cacheOperationSources) {
Assert.notEmpty(cacheOperationSources, "cacheOperationSources array must not be empty"); Assert.notEmpty(cacheOperationSources, "CacheOperationSource array must not be empty");
this.cacheOperationSources = cacheOperationSources; this.cacheOperationSources = cacheOperationSources;
} }
@ -54,21 +55,21 @@ public class CompositeCacheOperationSource implements CacheOperationSource, Seri
return this.cacheOperationSources; return this.cacheOperationSources;
} }
@Override @Override
@Nullable @Nullable
public Collection<CacheOperation> getCacheOperations(Method method, @Nullable Class<?> targetClass) { public Collection<CacheOperation> getCacheOperations(Method method, @Nullable Class<?> targetClass) {
Collection<CacheOperation> ops = null; Collection<CacheOperation> ops = null;
for (CacheOperationSource source : this.cacheOperationSources) { for (CacheOperationSource source : this.cacheOperationSources) {
Collection<CacheOperation> cacheOperations = source.getCacheOperations(method, targetClass); Collection<CacheOperation> cacheOperations = source.getCacheOperations(method, targetClass);
if (cacheOperations != null) { if (cacheOperations != null) {
if (ops == null) { if (ops == null) {
ops = new ArrayList<>(); ops = new ArrayList<>();
} }
ops.addAll(cacheOperations); ops.addAll(cacheOperations);
} }
} }
return ops; return ops;
} }
} }

5
spring-context/src/main/java/org/springframework/scripting/support/StandardScriptFactory.java
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@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2017 the original author or authors. * Copyright 2002-2019 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -36,7 +36,7 @@ import org.springframework.util.StringUtils;
/** /**
* {@link org.springframework.scripting.ScriptFactory} implementation based * {@link org.springframework.scripting.ScriptFactory} implementation based
* on the JSR-223 script engine abstraction (as included in Java 6+). * on the JSR-223 script engine abstraction (as included in Java 6+).
* Supports JavaScript, Groovy, JRuby and other JSR-223 compliant engines. * Supports JavaScript, Groovy, JRuby, and other JSR-223 compliant engines.
* *
* <p>Typically used in combination with a * <p>Typically used in combination with a
* {@link org.springframework.scripting.support.ScriptFactoryPostProcessor}; * {@link org.springframework.scripting.support.ScriptFactoryPostProcessor};
@ -151,6 +151,7 @@ public class StandardScriptFactory implements ScriptFactory, BeanClassLoaderAwar
if (script instanceof Class ? !requestedIfc.isAssignableFrom((Class<?>) script) : if (script instanceof Class ? !requestedIfc.isAssignableFrom((Class<?>) script) :
!requestedIfc.isInstance(script)) { !requestedIfc.isInstance(script)) {
adaptationRequired = true; adaptationRequired = true;
break;
} }
} }
if (adaptationRequired) { if (adaptationRequired) {

7
spring-core/src/main/java/org/springframework/lang/NonNull.java
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@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2018 the original author or authors. * Copyright 2002-2019 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -26,8 +26,9 @@ import javax.annotation.meta.TypeQualifierNickname;
/** /**
* A common Spring annotation to declare that annotated elements cannot be {@code null}. * A common Spring annotation to declare that annotated elements cannot be {@code null}.
* Leverages JSR 305 meta-annotations to indicate nullability in Java to common tools with *
* JSR 305 support and used by Kotlin to infer nullability of Spring API. * <p>Leverages JSR-305 meta-annotations to indicate nullability in Java to common
* tools with JSR-305 support and used by Kotlin to infer nullability of Spring API.
* *
* <p>Should be used at parameter, return value, and field level. Method overrides should * <p>Should be used at parameter, return value, and field level. Method overrides should
* repeat parent {@code @NonNull} annotations unless they behave differently. * repeat parent {@code @NonNull} annotations unless they behave differently.

4
spring-core/src/main/java/org/springframework/lang/NonNullFields.java
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@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2017 the original author or authors. * Copyright 2002-2019 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -36,7 +36,7 @@ import javax.annotation.meta.TypeQualifierDefault;
* *
* @author Sebastien Deleuze * @author Sebastien Deleuze
* @since 5.0 * @since 5.0
* @see NonNullFields * @see NonNullApi
* @see Nullable * @see Nullable
* @see NonNull * @see NonNull
*/ */

8
spring-core/src/main/java/org/springframework/lang/Nullable.java
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@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2018 the original author or authors. * Copyright 2002-2019 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -27,8 +27,10 @@ import javax.annotation.meta.When;
/** /**
* A common Spring annotation to declare that annotated elements can be {@code null} under * A common Spring annotation to declare that annotated elements can be {@code null} under
* some circumstance. Leverages JSR 305 meta-annotations to indicate nullability in Java * some circumstance.
* to common tools with JSR 305 support and used by Kotlin to infer nullability of Spring API. *
* <p>Leverages JSR-305 meta-annotations to indicate nullability in Java to common
* tools with JSR-305 support and used by Kotlin to infer nullability of Spring API.
* *
* <p>Should be used at parameter, return value, and field level. Methods override should * <p>Should be used at parameter, return value, and field level. Methods override should
* repeat parent {@code @Nullable} annotations unless they behave differently. * repeat parent {@code @Nullable} annotations unless they behave differently.

662
spring-core/src/main/java/org/springframework/util/ReflectionUtils.java
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@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2018 the original author or authors. * Copyright 2002-2019 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -61,13 +61,13 @@ public abstract class ReflectionUtils {
* @since 3.0.5 * @since 3.0.5
*/ */
public static final MethodFilter USER_DECLARED_METHODS = public static final MethodFilter USER_DECLARED_METHODS =
(method -> (!method.isBridge() && !method.isSynthetic() && method.getDeclaringClass() != Object.class)); (method -> !method.isBridge() && !method.isSynthetic() && method.getDeclaringClass() != Object.class);
/** /**
* Pre-built FieldFilter that matches all non-static, non-final fields. * Pre-built FieldFilter that matches all non-static, non-final fields.
*/ */
public static final FieldFilter COPYABLE_FIELDS = public static final FieldFilter COPYABLE_FIELDS =
field -> !(Modifier.isStatic(field.getModifiers()) || Modifier.isFinal(field.getModifiers())); (field -> !(Modifier.isStatic(field.getModifiers()) || Modifier.isFinal(field.getModifiers())));
/** /**
@ -76,9 +76,9 @@ public abstract class ReflectionUtils {
*/ */
private static final String CGLIB_RENAMED_METHOD_PREFIX = "CGLIB$"; private static final String CGLIB_RENAMED_METHOD_PREFIX = "CGLIB$";
private static final Method[] NO_METHODS = {}; private static final Method[] EMPTY_METHOD_ARRAY = new Method[0];
private static final Field[] NO_FIELDS = {}; private static final Field[] EMPTY_FIELD_ARRAY = new Field[0];
/** /**
@ -93,209 +93,7 @@ public abstract class ReflectionUtils {
private static final Map<Class<?>, Field[]> declaredFieldsCache = new ConcurrentReferenceHashMap<>(256); private static final Map<Class<?>, Field[]> declaredFieldsCache = new ConcurrentReferenceHashMap<>(256);
/** // Exception handling
* Attempt to find a {@link Field field} on the supplied {@link Class} with the
* supplied {@code name}. Searches all superclasses up to {@link Object}.
* @param clazz the class to introspect
* @param name the name of the field
* @return the corresponding Field object, or {@code null} if not found
*/
@Nullable
public static Field findField(Class<?> clazz, String name) {
return findField(clazz, name, null);
}
/**
* Attempt to find a {@link Field field} on the supplied {@link Class} with the
* supplied {@code name} and/or {@link Class type}. Searches all superclasses
* up to {@link Object}.
* @param clazz the class to introspect
* @param name the name of the field (may be {@code null} if type is specified)
* @param type the type of the field (may be {@code null} if name is specified)
* @return the corresponding Field object, or {@code null} if not found
*/
@Nullable
public static Field findField(Class<?> clazz, @Nullable String name, @Nullable Class<?> type) {
Assert.notNull(clazz, "Class must not be null");
Assert.isTrue(name != null || type != null, "Either name or type of the field must be specified");
Class<?> searchType = clazz;
while (Object.class != searchType && searchType != null) {
Field[] fields = getDeclaredFields(searchType);
for (Field field : fields) {
if ((name == null || name.equals(field.getName())) &&
(type == null || type.equals(field.getType()))) {
return field;
}
}
searchType = searchType.getSuperclass();
}
return null;
}
/**
* Set the field represented by the supplied {@link Field field object} on the
* specified {@link Object target object} to the specified {@code value}.
* In accordance with {@link Field#set(Object, Object)} semantics, the new value
* is automatically unwrapped if the underlying field has a primitive type.
* <p>Thrown exceptions are handled via a call to {@link #handleReflectionException(Exception)}.
* @param field the field to set
* @param target the target object on which to set the field
* @param value the value to set (may be {@code null})
*/
public static void setField(Field field, @Nullable Object target, @Nullable Object value) {
try {
field.set(target, value);
}
catch (IllegalAccessException ex) {
handleReflectionException(ex);
throw new IllegalStateException(
"Unexpected reflection exception - " + ex.getClass().getName() + ": " + ex.getMessage());
}
}
/**
* Get the field represented by the supplied {@link Field field object} on the
* specified {@link Object target object}. In accordance with {@link Field#get(Object)}
* semantics, the returned value is automatically wrapped if the underlying field
* has a primitive type.
* <p>Thrown exceptions are handled via a call to {@link #handleReflectionException(Exception)}.
* @param field the field to get
* @param target the target object from which to get the field
* @return the field's current value
*/
@Nullable
public static Object getField(Field field, @Nullable Object target) {
try {
return field.get(target);
}
catch (IllegalAccessException ex) {
handleReflectionException(ex);
throw new IllegalStateException(
"Unexpected reflection exception - " + ex.getClass().getName() + ": " + ex.getMessage());
}
}
/**
* Attempt to find a {@link Method} on the supplied class with the supplied name
* and no parameters. Searches all superclasses up to {@code Object}.
* <p>Returns {@code null} if no {@link Method} can be found.
* @param clazz the class to introspect
* @param name the name of the method
* @return the Method object, or {@code null} if none found
*/
@Nullable
public static Method findMethod(Class<?> clazz, String name) {
return findMethod(clazz, name, new Class<?>[0]);
}
/**
* Attempt to find a {@link Method} on the supplied class with the supplied name
* and parameter types. Searches all superclasses up to {@code Object}.
* <p>Returns {@code null} if no {@link Method} can be found.
* @param clazz the class to introspect
* @param name the name of the method
* @param paramTypes the parameter types of the method
* (may be {@code null} to indicate any signature)
* @return the Method object, or {@code null} if none found
*/
@Nullable
public static Method findMethod(Class<?> clazz, String name, @Nullable Class<?>... paramTypes) {
Assert.notNull(clazz, "Class must not be null");
Assert.notNull(name, "Method name must not be null");
Class<?> searchType = clazz;
while (searchType != null) {
Method[] methods = (searchType.isInterface() ? searchType.getMethods() : getDeclaredMethods(searchType));
for (Method method : methods) {
if (name.equals(method.getName()) &&
(paramTypes == null || Arrays.equals(paramTypes, method.getParameterTypes()))) {
return method;
}
}
searchType = searchType.getSuperclass();
}
return null;
}
/**
* Invoke the specified {@link Method} against the supplied target object with no arguments.
* The target object can be {@code null} when invoking a static {@link Method}.
* <p>Thrown exceptions are handled via a call to {@link #handleReflectionException}.
* @param method the method to invoke
* @param target the target object to invoke the method on
* @return the invocation result, if any
* @see #invokeMethod(java.lang.reflect.Method, Object, Object[])
*/
@Nullable
public static Object invokeMethod(Method method, @Nullable Object target) {
return invokeMethod(method, target, new Object[0]);
}
/**
* Invoke the specified {@link Method} against the supplied target object with the
* supplied arguments. The target object can be {@code null} when invoking a
* static {@link Method}.
* <p>Thrown exceptions are handled via a call to {@link #handleReflectionException}.
* @param method the method to invoke
* @param target the target object to invoke the method on
* @param args the invocation arguments (may be {@code null})
* @return the invocation result, if any
*/
@Nullable
public static Object invokeMethod(Method method, @Nullable Object target, @Nullable Object... args) {
try {
return method.invoke(target, args);
}
catch (Exception ex) {
handleReflectionException(ex);
}
throw new IllegalStateException("Should never get here");
}
/**
* Invoke the specified JDBC API {@link Method} against the supplied target
* object with no arguments.
* @param method the method to invoke
* @param target the target object to invoke the method on
* @return the invocation result, if any
* @throws SQLException the JDBC API SQLException to rethrow (if any)
* @see #invokeJdbcMethod(java.lang.reflect.Method, Object, Object[])
* @deprecated as of 5.0.11, in favor of custom SQLException handling
*/
@Deprecated
@Nullable
public static Object invokeJdbcMethod(Method method, @Nullable Object target) throws SQLException {
return invokeJdbcMethod(method, target, new Object[0]);
}
/**
* Invoke the specified JDBC API {@link Method} against the supplied target
* object with the supplied arguments.
* @param method the method to invoke
* @param target the target object to invoke the method on
* @param args the invocation arguments (may be {@code null})
* @return the invocation result, if any
* @throws SQLException the JDBC API SQLException to rethrow (if any)
* @see #invokeMethod(java.lang.reflect.Method, Object, Object[])
* @deprecated as of 5.0.11, in favor of custom SQLException handling
*/
@Deprecated
@Nullable
public static Object invokeJdbcMethod(Method method, @Nullable Object target, @Nullable Object... args)
throws SQLException {
try {
return method.invoke(target, args);
}
catch (IllegalAccessException ex) {
handleReflectionException(ex);
}
catch (InvocationTargetException ex) {
if (ex.getTargetException() instanceof SQLException) {
throw (SQLException) ex.getTargetException();
}
handleInvocationTargetException(ex);
}
throw new IllegalStateException("Should never get here");
}
/** /**
* Handle the given reflection exception. Should only be called if no * Handle the given reflection exception. Should only be called if no
@ -375,161 +173,184 @@ public abstract class ReflectionUtils {
throw new UndeclaredThrowableException(ex); throw new UndeclaredThrowableException(ex);
} }
/**
* Determine whether the given method explicitly declares the given // Constructor handling
* exception or one of its superclasses, which means that an exception
* of that type can be propagated as-is within a reflective invocation.
* @param method the declaring method
* @param exceptionType the exception to throw
* @return {@code true} if the exception can be thrown as-is;
* {@code false} if it needs to be wrapped
*/
public static boolean declaresException(Method method, Class<?> exceptionType) {
Assert.notNull(method, "Method must not be null");
Class<?>[] declaredExceptions = method.getExceptionTypes();
for (Class<?> declaredException : declaredExceptions) {
if (declaredException.isAssignableFrom(exceptionType)) {
return true;
}
}
return false;
}
/** /**
* Determine whether the given field is a "public static final" constant. * Obtain an accessible constructor for the given class and parameters.
* @param field the field to check * @param clazz the clazz to check
* @param parameterTypes the parameter types of the desired constructor
* @return the constructor reference
* @throws NoSuchMethodException if no such constructor exists
* @since 5.0
*/ */
public static boolean isPublicStaticFinal(Field field) { public static <T> Constructor<T> accessibleConstructor(Class<T> clazz, Class<?>... parameterTypes)
int modifiers = field.getModifiers(); throws NoSuchMethodException {
return (Modifier.isPublic(modifiers) && Modifier.isStatic(modifiers) && Modifier.isFinal(modifiers));
Constructor<T> ctor = clazz.getDeclaredConstructor(parameterTypes);
makeAccessible(ctor);
return ctor;
} }
/** /**
* Determine whether the given method is an "equals" method. * Make the given constructor accessible, explicitly setting it accessible
* @see java.lang.Object#equals(Object) * if necessary. The {@code setAccessible(true)} method is only called
* when actually necessary, to avoid unnecessary conflicts with a JVM
* SecurityManager (if active).
* @param ctor the constructor to make accessible
* @see java.lang.reflect.Constructor#setAccessible
*/ */
public static boolean isEqualsMethod(@Nullable Method method) { @SuppressWarnings("deprecation") // on JDK 9
if (method == null || !method.getName().equals("equals")) { public static void makeAccessible(Constructor<?> ctor) {
return false; if ((!Modifier.isPublic(ctor.getModifiers()) ||
!Modifier.isPublic(ctor.getDeclaringClass().getModifiers())) && !ctor.isAccessible()) {
ctor.setAccessible(true);
} }
Class<?>[] paramTypes = method.getParameterTypes();
return (paramTypes.length == 1 && paramTypes[0] == Object.class);
} }
/**
* Determine whether the given method is a "hashCode" method. // Method handling
* @see java.lang.Object#hashCode()
*/
public static boolean isHashCodeMethod(@Nullable Method method) {
return (method != null && method.getName().equals("hashCode") && method.getParameterCount() == 0);
}
/** /**
* Determine whether the given method is a "toString" method. * Attempt to find a {@link Method} on the supplied class with the supplied name
* @see java.lang.Object#toString() * and no parameters. Searches all superclasses up to {@code Object}.
* <p>Returns {@code null} if no {@link Method} can be found.
* @param clazz the class to introspect
* @param name the name of the method
* @return the Method object, or {@code null} if none found
*/ */
public static boolean isToStringMethod(@Nullable Method method) { @Nullable
return (method != null && method.getName().equals("toString") && method.getParameterCount() == 0); public static Method findMethod(Class<?> clazz, String name) {
return findMethod(clazz, name, new Class<?>[0]);
} }
/** /**
* Determine whether the given method is originally declared by {@link java.lang.Object}. * Attempt to find a {@link Method} on the supplied class with the supplied name
* and parameter types. Searches all superclasses up to {@code Object}.
* <p>Returns {@code null} if no {@link Method} can be found.
* @param clazz the class to introspect
* @param name the name of the method
* @param paramTypes the parameter types of the method
* (may be {@code null} to indicate any signature)
* @return the Method object, or {@code null} if none found
*/ */
public static boolean isObjectMethod(@Nullable Method method) { @Nullable
if (method == null) { public static Method findMethod(Class<?> clazz, String name, @Nullable Class<?>... paramTypes) {
return false; Assert.notNull(clazz, "Class must not be null");
Assert.notNull(name, "Method name must not be null");
Class<?> searchType = clazz;
while (searchType != null) {
Method[] methods = (searchType.isInterface() ? searchType.getMethods() : getDeclaredMethods(searchType));
for (Method method : methods) {
if (name.equals(method.getName()) &&
(paramTypes == null || Arrays.equals(paramTypes, method.getParameterTypes()))) {
return method;
} }
try {
Object.class.getDeclaredMethod(method.getName(), method.getParameterTypes());
return true;
} }
catch (Exception ex) { searchType = searchType.getSuperclass();
return false;
} }
return null;
} }
/** /**
* Determine whether the given method is a CGLIB 'renamed' method, * Invoke the specified {@link Method} against the supplied target object with no arguments.
* following the pattern "CGLIB$methodName$0". * The target object can be {@code null} when invoking a static {@link Method}.
* @param renamedMethod the method to check * <p>Thrown exceptions are handled via a call to {@link #handleReflectionException}.
* @see org.springframework.cglib.proxy.Enhancer#rename * @param method the method to invoke
* @param target the target object to invoke the method on
* @return the invocation result, if any
* @see #invokeMethod(java.lang.reflect.Method, Object, Object[])
*/ */
public static boolean isCglibRenamedMethod(Method renamedMethod) { @Nullable
String name = renamedMethod.getName(); public static Object invokeMethod(Method method, @Nullable Object target) {
if (name.startsWith(CGLIB_RENAMED_METHOD_PREFIX)) { return invokeMethod(method, target, new Object[0]);
int i = name.length() - 1;
while (i >= 0 && Character.isDigit(name.charAt(i))) {
i--;
}
return ((i > CGLIB_RENAMED_METHOD_PREFIX.length()) &&
(i < name.length() - 1) && name.charAt(i) == '$');
}
return false;
} }
/** /**
* Make the given field accessible, explicitly setting it accessible if * Invoke the specified {@link Method} against the supplied target object with the
* necessary. The {@code setAccessible(true)} method is only called * supplied arguments. The target object can be {@code null} when invoking a
* when actually necessary, to avoid unnecessary conflicts with a JVM * static {@link Method}.
* SecurityManager (if active). * <p>Thrown exceptions are handled via a call to {@link #handleReflectionException}.
* @param field the field to make accessible * @param method the method to invoke
* @see java.lang.reflect.Field#setAccessible * @param target the target object to invoke the method on
* @param args the invocation arguments (may be {@code null})
* @return the invocation result, if any
*/ */
@SuppressWarnings("deprecation") // on JDK 9 @Nullable
public static void makeAccessible(Field field) { public static Object invokeMethod(Method method, @Nullable Object target, @Nullable Object... args) {
if ((!Modifier.isPublic(field.getModifiers()) || try {
!Modifier.isPublic(field.getDeclaringClass().getModifiers()) || return method.invoke(target, args);
Modifier.isFinal(field.getModifiers())) && !field.isAccessible()) {
field.setAccessible(true);
} }
catch (Exception ex) {
handleReflectionException(ex);
}
throw new IllegalStateException("Should never get here");
} }
/** /**
* Make the given method accessible, explicitly setting it accessible if * Invoke the specified JDBC API {@link Method} against the supplied target
* necessary. The {@code setAccessible(true)} method is only called * object with no arguments.
* when actually necessary, to avoid unnecessary conflicts with a JVM * @param method the method to invoke
* SecurityManager (if active). * @param target the target object to invoke the method on
* @param method the method to make accessible * @return the invocation result, if any
* @see java.lang.reflect.Method#setAccessible * @throws SQLException the JDBC API SQLException to rethrow (if any)
* @see #invokeJdbcMethod(java.lang.reflect.Method, Object, Object[])
* @deprecated as of 5.0.11, in favor of custom SQLException handling
*/ */
@SuppressWarnings("deprecation") // on JDK 9 @Deprecated
public static void makeAccessible(Method method) { @Nullable
if ((!Modifier.isPublic(method.getModifiers()) || public static Object invokeJdbcMethod(Method method, @Nullable Object target) throws SQLException {
!Modifier.isPublic(method.getDeclaringClass().getModifiers())) && !method.isAccessible()) { return invokeJdbcMethod(method, target, new Object[0]);
method.setAccessible(true);
}
} }
/** /**
* Make the given constructor accessible, explicitly setting it accessible * Invoke the specified JDBC API {@link Method} against the supplied target
* if necessary. The {@code setAccessible(true)} method is only called * object with the supplied arguments.
* when actually necessary, to avoid unnecessary conflicts with a JVM * @param method the method to invoke
* SecurityManager (if active). * @param target the target object to invoke the method on
* @param ctor the constructor to make accessible * @param args the invocation arguments (may be {@code null})
* @see java.lang.reflect.Constructor#setAccessible * @return the invocation result, if any
* @throws SQLException the JDBC API SQLException to rethrow (if any)
* @see #invokeMethod(java.lang.reflect.Method, Object, Object[])
* @deprecated as of 5.0.11, in favor of custom SQLException handling
*/ */
@SuppressWarnings("deprecation") // on JDK 9 @Deprecated
public static void makeAccessible(Constructor<?> ctor) { @Nullable
if ((!Modifier.isPublic(ctor.getModifiers()) || public static Object invokeJdbcMethod(Method method, @Nullable Object target, @Nullable Object... args)
!Modifier.isPublic(ctor.getDeclaringClass().getModifiers())) && !ctor.isAccessible()) { throws SQLException {
ctor.setAccessible(true); try {
return method.invoke(target, args);
}
catch (IllegalAccessException ex) {
handleReflectionException(ex);
}
catch (InvocationTargetException ex) {
if (ex.getTargetException() instanceof SQLException) {
throw (SQLException) ex.getTargetException();
}
handleInvocationTargetException(ex);
} }
throw new IllegalStateException("Should never get here");
} }
/** /**
* Obtain an accessible constructor for the given class and parameters. * Determine whether the given method explicitly declares the given
* @param clazz the clazz to check * exception or one of its superclasses, which means that an exception
* @param parameterTypes the parameter types of the desired constructor * of that type can be propagated as-is within a reflective invocation.
* @return the constructor reference * @param method the declaring method
* @throws NoSuchMethodException if no such constructor exists * @param exceptionType the exception to throw
* @since 5.0 * @return {@code true} if the exception can be thrown as-is;
* {@code false} if it needs to be wrapped
*/ */
public static <T> Constructor<T> accessibleConstructor(Class<T> clazz, Class<?>... parameterTypes) public static boolean declaresException(Method method, Class<?> exceptionType) {
throws NoSuchMethodException { Assert.notNull(method, "Method must not be null");
Class<?>[] declaredExceptions = method.getExceptionTypes();
Constructor<T> ctor = clazz.getDeclaredConstructor(parameterTypes); for (Class<?> declaredException : declaredExceptions) {
makeAccessible(ctor); if (declaredException.isAssignableFrom(exceptionType)) {
return ctor; return true;
}
}
return false;
} }
/** /**
@ -611,7 +432,7 @@ public abstract class ReflectionUtils {
public static Method[] getAllDeclaredMethods(Class<?> leafClass) { public static Method[] getAllDeclaredMethods(Class<?> leafClass) {
final List<Method> methods = new ArrayList<>(32); final List<Method> methods = new ArrayList<>(32);
doWithMethods(leafClass, methods::add); doWithMethods(leafClass, methods::add);
return methods.toArray(new Method[0]); return methods.toArray(EMPTY_METHOD_ARRAY);
} }
/** /**
@ -647,7 +468,7 @@ public abstract class ReflectionUtils {
methods.add(method); methods.add(method);
} }
}); });
return methods.toArray(new Method[0]); return methods.toArray(EMPTY_METHOD_ARRAY);
} }
/** /**
@ -679,7 +500,7 @@ public abstract class ReflectionUtils {
else { else {
result = declaredMethods; result = declaredMethods;
} }
declaredMethodsCache.put(clazz, (result.length == 0 ? NO_METHODS : result)); declaredMethodsCache.put(clazz, (result.length == 0 ? EMPTY_METHOD_ARRAY : result));
} }
catch (Throwable ex) { catch (Throwable ex) {
throw new IllegalStateException("Failed to introspect Class [" + clazz.getName() + throw new IllegalStateException("Failed to introspect Class [" + clazz.getName() +
@ -705,6 +526,168 @@ public abstract class ReflectionUtils {
return result; return result;
} }
/**
* Determine whether the given method is an "equals" method.
* @see java.lang.Object#equals(Object)
*/
public static boolean isEqualsMethod(@Nullable Method method) {
if (method == null || !method.getName().equals("equals")) {
return false;
}
Class<?>[] paramTypes = method.getParameterTypes();
return (paramTypes.length == 1 && paramTypes[0] == Object.class);
}
/**
* Determine whether the given method is a "hashCode" method.
* @see java.lang.Object#hashCode()
*/
public static boolean isHashCodeMethod(@Nullable Method method) {
return (method != null && method.getName().equals("hashCode") && method.getParameterCount() == 0);
}
/**
* Determine whether the given method is a "toString" method.
* @see java.lang.Object#toString()
*/
public static boolean isToStringMethod(@Nullable Method method) {
return (method != null && method.getName().equals("toString") && method.getParameterCount() == 0);
}
/**
* Determine whether the given method is originally declared by {@link java.lang.Object}.
*/
public static boolean isObjectMethod(@Nullable Method method) {
if (method == null) {
return false;
}
try {
Object.class.getDeclaredMethod(method.getName(), method.getParameterTypes());
return true;
}
catch (Exception ex) {
return false;
}
}
/**
* Determine whether the given method is a CGLIB 'renamed' method,
* following the pattern "CGLIB$methodName$0".
* @param renamedMethod the method to check
*/
public static boolean isCglibRenamedMethod(Method renamedMethod) {
String name = renamedMethod.getName();
if (name.startsWith(CGLIB_RENAMED_METHOD_PREFIX)) {
int i = name.length() - 1;
while (i >= 0 && Character.isDigit(name.charAt(i))) {
i--;
}
return (i > CGLIB_RENAMED_METHOD_PREFIX.length() && (i < name.length() - 1) && name.charAt(i) == '$');
}
return false;
}
/**
* Make the given method accessible, explicitly setting it accessible if
* necessary. The {@code setAccessible(true)} method is only called
* when actually necessary, to avoid unnecessary conflicts with a JVM
* SecurityManager (if active).
* @param method the method to make accessible
* @see java.lang.reflect.Method#setAccessible
*/
@SuppressWarnings("deprecation") // on JDK 9
public static void makeAccessible(Method method) {
if ((!Modifier.isPublic(method.getModifiers()) ||
!Modifier.isPublic(method.getDeclaringClass().getModifiers())) && !method.isAccessible()) {
method.setAccessible(true);
}
}
// Field handling
/**
* Attempt to find a {@link Field field} on the supplied {@link Class} with the
* supplied {@code name}. Searches all superclasses up to {@link Object}.
* @param clazz the class to introspect
* @param name the name of the field
* @return the corresponding Field object, or {@code null} if not found
*/
@Nullable
public static Field findField(Class<?> clazz, String name) {
return findField(clazz, name, null);
}
/**
* Attempt to find a {@link Field field} on the supplied {@link Class} with the
* supplied {@code name} and/or {@link Class type}. Searches all superclasses
* up to {@link Object}.
* @param clazz the class to introspect
* @param name the name of the field (may be {@code null} if type is specified)
* @param type the type of the field (may be {@code null} if name is specified)
* @return the corresponding Field object, or {@code null} if not found
*/
@Nullable
public static Field findField(Class<?> clazz, @Nullable String name, @Nullable Class<?> type) {
Assert.notNull(clazz, "Class must not be null");
Assert.isTrue(name != null || type != null, "Either name or type of the field must be specified");
Class<?> searchType = clazz;
while (Object.class != searchType && searchType != null) {
Field[] fields = getDeclaredFields(searchType);
for (Field field : fields) {
if ((name == null || name.equals(field.getName())) &&
(type == null || type.equals(field.getType()))) {
return field;
}
}
searchType = searchType.getSuperclass();
}
return null;
}
/**
* Set the field represented by the supplied {@link Field field object} on the
* specified {@link Object target object} to the specified {@code value}.
* In accordance with {@link Field#set(Object, Object)} semantics, the new value
* is automatically unwrapped if the underlying field has a primitive type.
* <p>Thrown exceptions are handled via a call to {@link #handleReflectionException(Exception)}.
* @param field the field to set
* @param target the target object on which to set the field
* @param value the value to set (may be {@code null})
*/
public static void setField(Field field, @Nullable Object target, @Nullable Object value) {
try {
field.set(target, value);
}
catch (IllegalAccessException ex) {
handleReflectionException(ex);
throw new IllegalStateException(
"Unexpected reflection exception - " + ex.getClass().getName() + ": " + ex.getMessage());
}
}
/**
* Get the field represented by the supplied {@link Field field object} on the
* specified {@link Object target object}. In accordance with {@link Field#get(Object)}
* semantics, the returned value is automatically wrapped if the underlying field
* has a primitive type.
* <p>Thrown exceptions are handled via a call to {@link #handleReflectionException(Exception)}.
* @param field the field to get
* @param target the target object from which to get the field
* @return the field's current value
*/
@Nullable
public static Object getField(Field field, @Nullable Object target) {
try {
return field.get(target);
}
catch (IllegalAccessException ex) {
handleReflectionException(ex);
throw new IllegalStateException(
"Unexpected reflection exception - " + ex.getClass().getName() + ": " + ex.getMessage());
}
}
/** /**
* Invoke the given callback on all locally declared fields in the given class. * Invoke the given callback on all locally declared fields in the given class.
* @param clazz the target class to analyze * @param clazz the target class to analyze
@ -778,7 +761,7 @@ public abstract class ReflectionUtils {
if (result == null) { if (result == null) {
try { try {
result = clazz.getDeclaredFields(); result = clazz.getDeclaredFields();
declaredFieldsCache.put(clazz, (result.length == 0 ? NO_FIELDS : result)); declaredFieldsCache.put(clazz, (result.length == 0 ? EMPTY_FIELD_ARRAY : result));
} }
catch (Throwable ex) { catch (Throwable ex) {
throw new IllegalStateException("Failed to introspect Class [" + clazz.getName() + throw new IllegalStateException("Failed to introspect Class [" + clazz.getName() +
@ -808,6 +791,35 @@ public abstract class ReflectionUtils {
}, COPYABLE_FIELDS); }, COPYABLE_FIELDS);
} }
/**
* Determine whether the given field is a "public static final" constant.
* @param field the field to check
*/
public static boolean isPublicStaticFinal(Field field) {
int modifiers = field.getModifiers();
return (Modifier.isPublic(modifiers) && Modifier.isStatic(modifiers) && Modifier.isFinal(modifiers));
}
/**
* Make the given field accessible, explicitly setting it accessible if
* necessary. The {@code setAccessible(true)} method is only called
* when actually necessary, to avoid unnecessary conflicts with a JVM
* SecurityManager (if active).
* @param field the field to make accessible
* @see java.lang.reflect.Field#setAccessible
*/
@SuppressWarnings("deprecation") // on JDK 9
public static void makeAccessible(Field field) {
if ((!Modifier.isPublic(field.getModifiers()) ||
!Modifier.isPublic(field.getDeclaringClass().getModifiers()) ||
Modifier.isFinal(field.getModifiers())) && !field.isAccessible()) {
field.setAccessible(true);
}
}
// Cache handling
/** /**
* Clear the internal method/field cache. * Clear the internal method/field cache.
* @since 4.2.4 * @since 4.2.4

12
spring-tx/src/main/java/org/springframework/transaction/interceptor/CompositeTransactionAttributeSource.java
Unescape View File

@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2012 the original author or authors. * Copyright 2002-2019 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -39,7 +39,7 @@ public class CompositeTransactionAttributeSource implements TransactionAttribute
* Create a new CompositeTransactionAttributeSource for the given sources. * Create a new CompositeTransactionAttributeSource for the given sources.
* @param transactionAttributeSources the TransactionAttributeSource instances to combine * @param transactionAttributeSources the TransactionAttributeSource instances to combine
*/ */
public CompositeTransactionAttributeSource(TransactionAttributeSource[] transactionAttributeSources) { public CompositeTransactionAttributeSource(TransactionAttributeSource... transactionAttributeSources) {
Assert.notNull(transactionAttributeSources, "TransactionAttributeSource array must not be null"); Assert.notNull(transactionAttributeSources, "TransactionAttributeSource array must not be null");
this.transactionAttributeSources = transactionAttributeSources; this.transactionAttributeSources = transactionAttributeSources;
} }
@ -56,10 +56,10 @@ public class CompositeTransactionAttributeSource implements TransactionAttribute
@Override @Override
@Nullable @Nullable
public TransactionAttribute getTransactionAttribute(Method method, @Nullable Class<?> targetClass) { public TransactionAttribute getTransactionAttribute(Method method, @Nullable Class<?> targetClass) {
for (TransactionAttributeSource tas : this.transactionAttributeSources) { for (TransactionAttributeSource source : this.transactionAttributeSources) {
TransactionAttribute ta = tas.getTransactionAttribute(method, targetClass); TransactionAttribute attr = source.getTransactionAttribute(method, targetClass);
if (ta != null) { if (attr != null) {
return ta; return attr;
} }
} }
return null; return null;

6
spring-tx/src/main/java/org/springframework/transaction/interceptor/TransactionAttributeSource.java
Unescape View File

@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2018 the original author or authors. * Copyright 2002-2019 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -27,6 +27,7 @@ import org.springframework.lang.Nullable;
* metadata attributes at source level (such as Java 5 annotations), or anywhere else. * metadata attributes at source level (such as Java 5 annotations), or anywhere else.
* *
* @author Rod Johnson * @author Rod Johnson
* @author Juergen Hoeller
* @since 15.04.2003 * @since 15.04.2003
* @see TransactionInterceptor#setTransactionAttributeSource * @see TransactionInterceptor#setTransactionAttributeSource
* @see TransactionProxyFactoryBean#setTransactionAttributeSource * @see TransactionProxyFactoryBean#setTransactionAttributeSource
@ -40,8 +41,7 @@ public interface TransactionAttributeSource {
* @param method the method to introspect * @param method the method to introspect
* @param targetClass the target class (may be {@code null}, * @param targetClass the target class (may be {@code null},
* in which case the declaring class of the method must be used) * in which case the declaring class of the method must be used)
* @return the TransactionAttribute the matching transaction attribute, * @return the matching transaction attribute, or {@code null} if none found
* or {@code null} if none found
*/ */
@Nullable @Nullable
TransactionAttribute getTransactionAttribute(Method method, @Nullable Class<?> targetClass); TransactionAttribute getTransactionAttribute(Method method, @Nullable Class<?> targetClass);

8
spring-web/src/main/java/org/springframework/http/server/ServerHttpRequest.java
Unescape View File

@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2011 the original author or authors. * Copyright 2002-2019 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -21,6 +21,7 @@ import java.security.Principal;
import org.springframework.http.HttpInputMessage; import org.springframework.http.HttpInputMessage;
import org.springframework.http.HttpRequest; import org.springframework.http.HttpRequest;
import org.springframework.lang.Nullable;
/** /**
* Represents a server-side HTTP request. * Represents a server-side HTTP request.
@ -33,9 +34,10 @@ public interface ServerHttpRequest extends HttpRequest, HttpInputMessage {
/** /**
* Return a {@link java.security.Principal} instance containing the name of the * Return a {@link java.security.Principal} instance containing the name of the
* authenticated user. If the user has not been authenticated, the method returns * authenticated user.
* <code>null</code>. * <p>If the user has not been authenticated, the method returns <code>null</code>.
*/ */
@Nullable
Principal getPrincipal(); Principal getPrincipal();
/** /**

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