Example usage for org.springframework.beans.factory.support RootBeanDefinition isNonPublicAccessAllowed

List of usage examples for org.springframework.beans.factory.support RootBeanDefinition isNonPublicAccessAllowed

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Introduction

In this page you can find the example usage for org.springframework.beans.factory.support RootBeanDefinition isNonPublicAccessAllowed.

Prototype

public boolean isNonPublicAccessAllowed()

Source Link

Document

Return whether to allow access to non-public constructors and methods.

Usage

From source file:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.java

/**
 * Create a new instance for the specified bean, using an appropriate instantiation strategy:
 * factory method, constructor autowiring, or simple instantiation.
 * @param beanName the name of the bean/*  w  ww .  j  a  v a  2  s.c om*/
 * @param mbd the bean definition for the bean
 * @param args explicit arguments to use for constructor or factory method invocation
 * @return a BeanWrapper for the new instance
 * @see #obtainFromSupplier
 * @see #instantiateUsingFactoryMethod
 * @see #autowireConstructor
 * @see #instantiateBean
 */
protected BeanWrapper createBeanInstance(String beanName, RootBeanDefinition mbd, @Nullable Object[] args) {
    // Make sure bean class is actually resolved at this point.
    Class<?> beanClass = resolveBeanClass(mbd, beanName);

    if (beanClass != null && !Modifier.isPublic(beanClass.getModifiers()) && !mbd.isNonPublicAccessAllowed()) {
        throw new BeanCreationException(mbd.getResourceDescription(), beanName,
                "Bean class isn't public, and non-public access not allowed: " + beanClass.getName());
    }

    Supplier<?> instanceSupplier = mbd.getInstanceSupplier();
    if (instanceSupplier != null) {
        return obtainFromSupplier(instanceSupplier, beanName);
    }

    if (mbd.getFactoryMethodName() != null) {
        return instantiateUsingFactoryMethod(beanName, mbd, args);
    }

    // Shortcut when re-creating the same bean...
    boolean resolved = false;
    boolean autowireNecessary = false;
    if (args == null) {
        synchronized (mbd.constructorArgumentLock) {
            if (mbd.resolvedConstructorOrFactoryMethod != null) {
                resolved = true;
                autowireNecessary = mbd.constructorArgumentsResolved;
            }
        }
    }
    if (resolved) {
        if (autowireNecessary) {
            return autowireConstructor(beanName, mbd, null, null);
        } else {
            return instantiateBean(beanName, mbd);
        }
    }

    // Need to determine the constructor...
    Constructor<?>[] ctors = determineConstructorsFromBeanPostProcessors(beanClass, beanName);
    if (ctors != null || mbd.getResolvedAutowireMode() == RootBeanDefinition.AUTOWIRE_CONSTRUCTOR
            || mbd.hasConstructorArgumentValues() || !ObjectUtils.isEmpty(args)) {
        return autowireConstructor(beanName, mbd, ctors, args);
    }

    // No special handling: simply use no-arg constructor.
    return instantiateBean(beanName, mbd);
}

From source file:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.java

/**
 * Invoke the specified custom init method on the given bean.
 * Called by invokeInitMethods.//from  w  w  w  . java  2s  .  c o m
 * <p>Can be overridden in subclasses for custom resolution of init
 * methods with arguments.
 * @see #invokeInitMethods
 */
protected void invokeCustomInitMethod(String beanName, final Object bean, RootBeanDefinition mbd)
        throws Throwable {

    String initMethodName = mbd.getInitMethodName();
    Assert.state(initMethodName != null, "No init method set");
    final Method initMethod = (mbd.isNonPublicAccessAllowed()
            ? BeanUtils.findMethod(bean.getClass(), initMethodName)
            : ClassUtils.getMethodIfAvailable(bean.getClass(), initMethodName));

    if (initMethod == null) {
        if (mbd.isEnforceInitMethod()) {
            throw new BeanDefinitionValidationException("Couldn't find an init method named '" + initMethodName
                    + "' on bean with name '" + beanName + "'");
        } else {
            if (logger.isTraceEnabled()) {
                logger.trace("No default init method named '" + initMethodName + "' found on bean with name '"
                        + beanName + "'");
            }
            // Ignore non-existent default lifecycle methods.
            return;
        }
    }

    if (logger.isTraceEnabled()) {
        logger.trace("Invoking init method  '" + initMethodName + "' on bean with name '" + beanName + "'");
    }

    if (System.getSecurityManager() != null) {
        AccessController.doPrivileged((PrivilegedAction<Object>) () -> {
            ReflectionUtils.makeAccessible(initMethod);
            return null;
        });
        try {
            AccessController.doPrivileged((PrivilegedExceptionAction<Object>) () -> initMethod.invoke(bean),
                    getAccessControlContext());
        } catch (PrivilegedActionException pae) {
            InvocationTargetException ex = (InvocationTargetException) pae.getException();
            throw ex.getTargetException();
        }
    } else {
        try {
            ReflectionUtils.makeAccessible(initMethod);
            initMethod.invoke(bean);
        } catch (InvocationTargetException ex) {
            throw ex.getTargetException();
        }
    }
}

From source file:org.springframework.beans.factory.support.ConstructorResolver.java

/**
 * "autowire constructor" (with constructor arguments by type) behavior.
 * Also applied if explicit constructor argument values are specified,
 * matching all remaining arguments with beans from the bean factory.
 * <p>This corresponds to constructor injection: In this mode, a Spring
 * bean factory is able to host components that expect constructor-based
 * dependency resolution./*  w w w  .j  a  v  a 2  s  .  com*/
 * @param beanName the name of the bean
 * @param mbd the merged bean definition for the bean
 * @param chosenCtors chosen candidate constructors (or {@code null} if none)
 * @param explicitArgs argument values passed in programmatically via the getBean method,
 * or {@code null} if none (-> use constructor argument values from bean definition)
 * @return a BeanWrapper for the new instance
 */
public BeanWrapper autowireConstructor(final String beanName, final RootBeanDefinition mbd,
        @Nullable Constructor<?>[] chosenCtors, @Nullable final Object[] explicitArgs) {

    BeanWrapperImpl bw = new BeanWrapperImpl();
    this.beanFactory.initBeanWrapper(bw);

    Constructor<?> constructorToUse = null;
    ArgumentsHolder argsHolderToUse = null;
    Object[] argsToUse = null;

    if (explicitArgs != null) {
        argsToUse = explicitArgs;
    } else {
        Object[] argsToResolve = null;
        synchronized (mbd.constructorArgumentLock) {
            constructorToUse = (Constructor<?>) mbd.resolvedConstructorOrFactoryMethod;
            if (constructorToUse != null && mbd.constructorArgumentsResolved) {
                // Found a cached constructor...
                argsToUse = mbd.resolvedConstructorArguments;
                if (argsToUse == null) {
                    argsToResolve = mbd.preparedConstructorArguments;
                }
            }
        }
        if (argsToResolve != null) {
            argsToUse = resolvePreparedArguments(beanName, mbd, bw, constructorToUse, argsToResolve, true);
        }
    }

    if (constructorToUse == null) {
        // Need to resolve the constructor.
        boolean autowiring = (chosenCtors != null
                || mbd.getResolvedAutowireMode() == RootBeanDefinition.AUTOWIRE_CONSTRUCTOR);
        ConstructorArgumentValues resolvedValues = null;

        int minNrOfArgs;
        if (explicitArgs != null) {
            minNrOfArgs = explicitArgs.length;
        } else {
            ConstructorArgumentValues cargs = mbd.getConstructorArgumentValues();
            resolvedValues = new ConstructorArgumentValues();
            minNrOfArgs = resolveConstructorArguments(beanName, mbd, bw, cargs, resolvedValues);
        }

        // Take specified constructors, if any.
        Constructor<?>[] candidates = chosenCtors;
        if (candidates == null) {
            Class<?> beanClass = mbd.getBeanClass();
            try {
                candidates = (mbd.isNonPublicAccessAllowed() ? beanClass.getDeclaredConstructors()
                        : beanClass.getConstructors());
            } catch (Throwable ex) {
                throw new BeanCreationException(mbd.getResourceDescription(), beanName,
                        "Resolution of declared constructors on bean Class [" + beanClass.getName()
                                + "] from ClassLoader [" + beanClass.getClassLoader() + "] failed",
                        ex);
            }
        }
        AutowireUtils.sortConstructors(candidates);
        int minTypeDiffWeight = Integer.MAX_VALUE;
        Set<Constructor<?>> ambiguousConstructors = null;
        LinkedList<UnsatisfiedDependencyException> causes = null;

        for (Constructor<?> candidate : candidates) {
            Class<?>[] paramTypes = candidate.getParameterTypes();

            if (constructorToUse != null && argsToUse.length > paramTypes.length) {
                // Already found greedy constructor that can be satisfied ->
                // do not look any further, there are only less greedy constructors left.
                break;
            }
            if (paramTypes.length < minNrOfArgs) {
                continue;
            }

            ArgumentsHolder argsHolder;
            if (resolvedValues != null) {
                try {
                    String[] paramNames = ConstructorPropertiesChecker.evaluate(candidate, paramTypes.length);
                    if (paramNames == null) {
                        ParameterNameDiscoverer pnd = this.beanFactory.getParameterNameDiscoverer();
                        if (pnd != null) {
                            paramNames = pnd.getParameterNames(candidate);
                        }
                    }
                    argsHolder = createArgumentArray(beanName, mbd, resolvedValues, bw, paramTypes, paramNames,
                            getUserDeclaredConstructor(candidate), autowiring, candidates.length == 1);
                } catch (UnsatisfiedDependencyException ex) {
                    if (logger.isTraceEnabled()) {
                        logger.trace(
                                "Ignoring constructor [" + candidate + "] of bean '" + beanName + "': " + ex);
                    }
                    // Swallow and try next constructor.
                    if (causes == null) {
                        causes = new LinkedList<>();
                    }
                    causes.add(ex);
                    continue;
                }
            } else {
                // Explicit arguments given -> arguments length must match exactly.
                if (paramTypes.length != explicitArgs.length) {
                    continue;
                }
                argsHolder = new ArgumentsHolder(explicitArgs);
            }

            int typeDiffWeight = (mbd.isLenientConstructorResolution()
                    ? argsHolder.getTypeDifferenceWeight(paramTypes)
                    : argsHolder.getAssignabilityWeight(paramTypes));
            // Choose this constructor if it represents the closest match.
            if (typeDiffWeight < minTypeDiffWeight) {
                constructorToUse = candidate;
                argsHolderToUse = argsHolder;
                argsToUse = argsHolder.arguments;
                minTypeDiffWeight = typeDiffWeight;
                ambiguousConstructors = null;
            } else if (constructorToUse != null && typeDiffWeight == minTypeDiffWeight) {
                if (ambiguousConstructors == null) {
                    ambiguousConstructors = new LinkedHashSet<>();
                    ambiguousConstructors.add(constructorToUse);
                }
                ambiguousConstructors.add(candidate);
            }
        }

        if (constructorToUse == null) {
            if (causes != null) {
                UnsatisfiedDependencyException ex = causes.removeLast();
                for (Exception cause : causes) {
                    this.beanFactory.onSuppressedException(cause);
                }
                throw ex;
            }
            throw new BeanCreationException(mbd.getResourceDescription(), beanName,
                    "Could not resolve matching constructor "
                            + "(hint: specify index/type/name arguments for simple parameters to avoid type ambiguities)");
        } else if (ambiguousConstructors != null && !mbd.isLenientConstructorResolution()) {
            throw new BeanCreationException(mbd.getResourceDescription(), beanName,
                    "Ambiguous constructor matches found in bean '" + beanName + "' "
                            + "(hint: specify index/type/name arguments for simple parameters to avoid type ambiguities): "
                            + ambiguousConstructors);
        }

        if (explicitArgs == null) {
            argsHolderToUse.storeCache(mbd, constructorToUse);
        }
    }

    try {
        final InstantiationStrategy strategy = this.beanFactory.getInstantiationStrategy();
        Object beanInstance;

        if (System.getSecurityManager() != null) {
            final Constructor<?> ctorToUse = constructorToUse;
            final Object[] argumentsToUse = argsToUse;
            beanInstance = AccessController
                    .doPrivileged(
                            (PrivilegedAction<Object>) () -> strategy.instantiate(mbd, beanName,
                                    this.beanFactory, ctorToUse, argumentsToUse),
                            this.beanFactory.getAccessControlContext());
        } else {
            beanInstance = strategy.instantiate(mbd, beanName, this.beanFactory, constructorToUse, argsToUse);
        }

        bw.setBeanInstance(beanInstance);
        return bw;
    } catch (Throwable ex) {
        throw new BeanCreationException(mbd.getResourceDescription(), beanName,
                "Bean instantiation via constructor failed", ex);
    }
}

From source file:org.springframework.beans.factory.support.ConstructorResolver.java

/**
 * Retrieve all candidate methods for the given class, considering
 * the {@link RootBeanDefinition#isNonPublicAccessAllowed()} flag.
 * Called as the starting point for factory method determination.
 *///  w  ww. j  a v  a  2  s .c o  m
private Method[] getCandidateMethods(final Class<?> factoryClass, final RootBeanDefinition mbd) {
    if (System.getSecurityManager() != null) {
        return AccessController.doPrivileged((PrivilegedAction<Method[]>) () -> (mbd.isNonPublicAccessAllowed()
                ? ReflectionUtils.getAllDeclaredMethods(factoryClass)
                : factoryClass.getMethods()));
    } else {
        return (mbd.isNonPublicAccessAllowed() ? ReflectionUtils.getAllDeclaredMethods(factoryClass)
                : factoryClass.getMethods());
    }
}

From source file:org.springframework.beans.factory.support.DisposableBeanAdapter.java

/**
 * Create a new DisposableBeanAdapter for the given bean.
 * @param bean the bean instance (never {@code null})
 * @param beanName the name of the bean//from   ww  w .j av  a 2  s  .  c o m
 * @param beanDefinition the merged bean definition
 * @param postProcessors the List of BeanPostProcessors
 * (potentially DestructionAwareBeanPostProcessor), if any
 */
public DisposableBeanAdapter(Object bean, String beanName, RootBeanDefinition beanDefinition,
        List<BeanPostProcessor> postProcessors, @Nullable AccessControlContext acc) {

    Assert.notNull(bean, "Disposable bean must not be null");
    this.bean = bean;
    this.beanName = beanName;
    this.invokeDisposableBean = (this.bean instanceof DisposableBean
            && !beanDefinition.isExternallyManagedDestroyMethod("destroy"));
    this.nonPublicAccessAllowed = beanDefinition.isNonPublicAccessAllowed();
    this.acc = acc;
    String destroyMethodName = inferDestroyMethodIfNecessary(bean, beanDefinition);
    if (destroyMethodName != null && !(this.invokeDisposableBean && "destroy".equals(destroyMethodName))
            && !beanDefinition.isExternallyManagedDestroyMethod(destroyMethodName)) {
        this.destroyMethodName = destroyMethodName;
        this.destroyMethod = determineDestroyMethod(destroyMethodName);
        if (this.destroyMethod == null) {
            if (beanDefinition.isEnforceDestroyMethod()) {
                throw new BeanDefinitionValidationException("Couldn't find a destroy method named '"
                        + destroyMethodName + "' on bean with name '" + beanName + "'");
            }
        } else {
            Class<?>[] paramTypes = this.destroyMethod.getParameterTypes();
            if (paramTypes.length > 1) {
                throw new BeanDefinitionValidationException("Method '" + destroyMethodName + "' of bean '"
                        + beanName + "' has more than one parameter - not supported as destroy method");
            } else if (paramTypes.length == 1 && boolean.class != paramTypes[0]) {
                throw new BeanDefinitionValidationException("Method '" + destroyMethodName + "' of bean '"
                        + beanName + "' has a non-boolean parameter - not supported as destroy method");
            }
        }
    }
    this.beanPostProcessors = filterPostProcessors(postProcessors, bean);
}