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提交 f75c01d1 编写于 作者: C Chris Beams
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Merge branch cbeams/SPR-6870 

* SPR-6870:
  Cache by-type lookups in DefaultListableBeanFactory
  Polish
上级 f55a4a1a 4c7a1c0a
隐藏空白更改
内联 并排
Showing with 92 addition and 35 deletion
spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultListableBeanFactory.java
浏览文件 @ f75c01d1
......@@ -21,13 +21,14 @@ import java.io.NotSerializableException;
import java.io.ObjectInputStream;
import java.io.ObjectStreamException;
import java.io.Serializable;
import java.lang.annotation.Annotation;
import java.lang.ref.Reference;
import java.lang.ref.WeakReference;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
......@@ -38,6 +39,7 @@ import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import javax.inject.Provider;
import org.springframework.beans.BeansException;
......@@ -90,6 +92,7 @@ import org.springframework.util.StringUtils;
* @author Juergen Hoeller
* @author Sam Brannen
* @author Costin Leau
* @author Chris Beams
* @since 16 April 2001
* @see StaticListableBeanFactory
* @see PropertiesBeanDefinitionReader
......@@ -98,7 +101,7 @@ import org.springframework.util.StringUtils;
public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFactory
implements ConfigurableListableBeanFactory, BeanDefinitionRegistry, Serializable {
private static Class javaxInjectProviderClass = null;
private static Class<?> javaxInjectProviderClass = null;
static {
ClassLoader cl = DefaultListableBeanFactory.class.getClassLoader();
......@@ -128,11 +131,17 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
private AutowireCandidateResolver autowireCandidateResolver = new SimpleAutowireCandidateResolver();
/** Map from dependency type to corresponding autowired value */
private final Map<Class, Object> resolvableDependencies = new HashMap<Class, Object>();
private final Map<Class<?>, Object> resolvableDependencies = new HashMap<Class<?>, Object>();
/** Map of bean definition objects, keyed by bean name */
private final Map<String, BeanDefinition> beanDefinitionMap = new ConcurrentHashMap<String, BeanDefinition>();
/** Map of singleton bean names keyed by bean class */
private final Map<Class<?>, String[]> singletonBeanNamesByType = new ConcurrentHashMap<Class<?>, String[]>();
/** Map of non-singleton bean names keyed by bean class */
private final Map<Class<?>, String[]> nonSingletonBeanNamesByType = new ConcurrentHashMap<Class<?>, String[]>();
/** List of bean definition names, in registration order */
private final List<String> beanDefinitionNames = new ArrayList<String>();
......@@ -294,11 +303,26 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
}
}
public String[] getBeanNamesForType(Class type) {
public String[] getBeanNamesForType(Class<?> type) {
return getBeanNamesForType(type, true, true);
}
public String[] getBeanNamesForType(Class type, boolean includeNonSingletons, boolean allowEagerInit) {
public String[] getBeanNamesForType(Class<?> type, boolean includeNonSingletons, boolean allowEagerInit) {
if (type == null || !allowEagerInit) {
return this.doGetBeanNamesForType(type, includeNonSingletons, allowEagerInit);
}
Map<Class<?>, String[]> cache = includeNonSingletons ?
this.nonSingletonBeanNamesByType : this.singletonBeanNamesByType;
String[] resolvedBeanNames = cache.get(type);
if (resolvedBeanNames != null) {
return resolvedBeanNames;
}
resolvedBeanNames = this.doGetBeanNamesForType(type, includeNonSingletons, allowEagerInit);
cache.put(type, resolvedBeanNames);
return resolvedBeanNames;
}
private String[] doGetBeanNamesForType(Class<?> type, boolean includeNonSingletons, boolean allowEagerInit) {
List<String> result = new ArrayList<String>();
// Check all bean definitions.
......@@ -441,7 +465,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
*/
public <A extends Annotation> A findAnnotationOnBean(String beanName, Class<A> annotationType) {
A ann = null;
Class beanType = getType(beanName);
Class<?> beanType = getType(beanName);
if (beanType != null) {
ann = AnnotationUtils.findAnnotation(beanType, annotationType);
}
......@@ -564,18 +588,18 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
RootBeanDefinition bd = getMergedLocalBeanDefinition(beanName);
if (!bd.isAbstract() && bd.isSingleton() && !bd.isLazyInit()) {
if (isFactoryBean(beanName)) {
final FactoryBean factory = (FactoryBean) getBean(FACTORY_BEAN_PREFIX + beanName);
final FactoryBean<?> factory = (FactoryBean<?>) getBean(FACTORY_BEAN_PREFIX + beanName);
boolean isEagerInit;
if (System.getSecurityManager() != null && factory instanceof SmartFactoryBean) {
isEagerInit = AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
public Boolean run() {
return ((SmartFactoryBean) factory).isEagerInit();
return ((SmartFactoryBean<?>) factory).isEagerInit();
}
}, getAccessControlContext());
}
else {
isEagerInit = (factory instanceof SmartFactoryBean &&
((SmartFactoryBean) factory).isEagerInit());
((SmartFactoryBean<?>) factory).isEagerInit());
}
if (isEagerInit) {
getBean(beanName);
......@@ -669,6 +693,10 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
destroySingleton(beanName);
}
// Remove any assumptions about by-type mappings
this.singletonBeanNamesByType.clear();
this.nonSingletonBeanNamesByType.clear();
// Reset all bean definitions that have the given bean as parent (recursively).
for (String bdName : this.beanDefinitionNames) {
if (!beanName.equals(bdName)) {
......@@ -723,7 +751,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
}
if (type.isArray()) {
Class componentType = type.getComponentType();
Class<?> componentType = type.getComponentType();
Map<String, Object> matchingBeans = findAutowireCandidates(beanName, componentType, descriptor);
if (matchingBeans.isEmpty()) {
if (descriptor.isRequired()) {
......@@ -738,7 +766,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
return converter.convertIfNecessary(matchingBeans.values(), type);
}
else if (Collection.class.isAssignableFrom(type) && type.isInterface()) {
Class elementType = descriptor.getCollectionType();
Class<?> elementType = descriptor.getCollectionType();
if (elementType == null) {
if (descriptor.isRequired()) {
throw new FatalBeanException("No element type declared for collection [" + type.getName() + "]");
......@@ -759,7 +787,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
return converter.convertIfNecessary(matchingBeans.values(), type);
}
else if (Map.class.isAssignableFrom(type) && type.isInterface()) {
Class keyType = descriptor.getMapKeyType();
Class<?> keyType = descriptor.getMapKeyType();
if (keyType == null || !String.class.isAssignableFrom(keyType)) {
if (descriptor.isRequired()) {
throw new FatalBeanException("Key type [" + keyType + "] of map [" + type.getName() +
......@@ -767,7 +795,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
}
return null;
}
Class valueType = descriptor.getMapValueType();
Class<?> valueType = descriptor.getMapValueType();
if (valueType == null) {
if (descriptor.isRequired()) {
throw new FatalBeanException("No value type declared for map [" + type.getName() + "]");
......@@ -828,12 +856,12 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
* @see #autowireConstructor
*/
protected Map<String, Object> findAutowireCandidates(
String beanName, Class requiredType, DependencyDescriptor descriptor) {
String beanName, Class<?> requiredType, DependencyDescriptor descriptor) {
String[] candidateNames = BeanFactoryUtils.beanNamesForTypeIncludingAncestors(
this, requiredType, true, descriptor.isEager());
Map<String, Object> result = new LinkedHashMap<String, Object>(candidateNames.length);
for (Class autowiringType : this.resolvableDependencies.keySet()) {
for (Class<?> autowiringType : this.resolvableDependencies.keySet()) {
if (autowiringType.isAssignableFrom(requiredType)) {
Object autowiringValue = this.resolvableDependencies.get(autowiringType);
autowiringValue = AutowireUtils.resolveAutowiringValue(autowiringValue, requiredType);
......@@ -918,7 +946,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
* Raise a NoSuchBeanDefinitionException for an unresolvable dependency.
*/
private void raiseNoSuchBeanDefinitionException(
Class type, String dependencyDescription, DependencyDescriptor descriptor)
Class<?> type, String dependencyDescription, DependencyDescriptor descriptor)
throws NoSuchBeanDefinitionException {
throw new NoSuchBeanDefinitionException(type, dependencyDescription,
......@@ -967,6 +995,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
* Minimal id reference to the factory.
* Resolved to the actual factory instance on deserialization.
*/
@SuppressWarnings("serial")
private static class SerializedBeanFactoryReference implements Serializable {
private final String id;
......@@ -976,7 +1005,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
}
private Object readResolve() {
Reference ref = serializableFactories.get(this.id);
Reference<?> ref = serializableFactories.get(this.id);
if (ref == null) {
throw new IllegalStateException(
"Cannot deserialize BeanFactory with id " + this.id + ": no factory registered for this id");
......@@ -994,7 +1023,8 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
/**
* Serializable ObjectFactory for lazy resolution of a dependency.
*/
private class DependencyObjectFactory implements ObjectFactory, Serializable {
@SuppressWarnings("serial")
private class DependencyObjectFactory implements ObjectFactory<Object>, Serializable {
private final DependencyDescriptor descriptor;
......@@ -1015,7 +1045,8 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
/**
* Serializable ObjectFactory for lazy resolution of a dependency.
*/
private class DependencyProvider extends DependencyObjectFactory implements Provider {
@SuppressWarnings("serial")
private class DependencyProvider extends DependencyObjectFactory implements Provider<Object> {
public DependencyProvider(DependencyDescriptor descriptor, String beanName) {
super(descriptor, beanName);
......
spring-beans/src/test/java/org/springframework/beans/factory/DefaultListableBeanFactoryTests.java
浏览文件 @ f75c01d1
/*
* Copyright 2002-2011 the original author or authors.
* Copyright 2002-2012 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.
......@@ -16,26 +16,18 @@
package org.springframework.beans.factory;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import static org.springframework.beans.factory.support.BeanDefinitionBuilder.rootBeanDefinition;
import java.lang.reflect.Field;
import java.net.MalformedURLException;
import java.security.AccessControlContext;
import java.security.AccessController;
import java.security.Principal;
import java.security.PrivilegedAction;
import java.text.NumberFormat;
import java.text.ParseException;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
......@@ -48,8 +40,10 @@ import javax.security.auth.Subject;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Ignore;
import org.junit.Test;
import org.springframework.beans.BeansException;
import org.springframework.beans.MutablePropertyValues;
import org.springframework.beans.NotWritablePropertyException;
......@@ -92,6 +86,10 @@ import test.beans.LifecycleBean;
import test.beans.NestedTestBean;
import test.beans.TestBean;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
/**
* Tests properties population and autowire behavior.
*
......@@ -2159,13 +2157,41 @@ public class DefaultListableBeanFactoryTests {
@Test
public void testContainsBeanReturnsTrueEvenForAbstractBeanDefinition() {
DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
bf.registerBeanDefinition("abs",
rootBeanDefinition(TestBean.class).setAbstract(true).getBeanDefinition());
bf.registerBeanDefinition("abs", BeanDefinitionBuilder
.rootBeanDefinition(TestBean.class).setAbstract(true).getBeanDefinition());
assertThat(bf.containsBean("abs"), is(true));
assertThat(bf.containsBean("bogus"), is(false));
}
static class A { }
static class B { }
/**
* Test that by-type bean lookup caching is working effectively by searching for a
* bean of type B 10K times within a container having 1K additional beans of type A.
* Prior to by-type caching, each bean lookup would traverse the entire container
* (all 1001 beans), performing expensive assignability checks, etc. Now these
* operations are necessary only once, providing a dramatic performance improvement.
* On load-free modern hardware (e.g. an 8-core MPB), this method should complete well
* under the 1000 ms timeout, usually ~= 300ms. With caching removed and on the same
* hardware the method will take ~13000 ms. See SPR-6870.
*/
@Test(timeout=1000)
public void testByTypeLookupIsFastEnough() {
DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
for (int i=0; i<1000; i++) {
bf.registerBeanDefinition("a"+i, new RootBeanDefinition(A.class));
}
bf.registerBeanDefinition("b", new RootBeanDefinition(B.class));
for (int i=0; i<10000; i++) {
bf.getBean(B.class);
}
}
public static class NoDependencies {
private NoDependencies() {
......
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