Examples with MethodParameter org.springframework.core.MethodParameter used on opensource projects

Example 1 with MethodParameter

use of org.springframework.core.MethodParameter in project spring-framework by spring-projects.

the class ConstructorResolver method createArgumentArray.

/**
	 * Create an array of arguments to invoke a constructor or factory method,
	 * given the resolved constructor argument values.
	 */
private ArgumentsHolder createArgumentArray(String beanName, RootBeanDefinition mbd, ConstructorArgumentValues resolvedValues, BeanWrapper bw, Class<?>[] paramTypes, String[] paramNames, Executable executable, boolean autowiring) throws UnsatisfiedDependencyException {
    TypeConverter customConverter = this.beanFactory.getCustomTypeConverter();
    TypeConverter converter = (customConverter != null ? customConverter : bw);
    ArgumentsHolder args = new ArgumentsHolder(paramTypes.length);
    Set<ConstructorArgumentValues.ValueHolder> usedValueHolders = new HashSet<>(paramTypes.length);
    Set<String> autowiredBeanNames = new LinkedHashSet<>(4);
    for (int paramIndex = 0; paramIndex < paramTypes.length; paramIndex++) {
        Class<?> paramType = paramTypes[paramIndex];
        String paramName = (paramNames != null ? paramNames[paramIndex] : "");
        // Try to find matching constructor argument value, either indexed or generic.
        ConstructorArgumentValues.ValueHolder valueHolder = resolvedValues.getArgumentValue(paramIndex, paramType, paramName, usedValueHolders);
        // it could match after type conversion (for example, String -> int).
        if (valueHolder == null && (!autowiring || paramTypes.length == resolvedValues.getArgumentCount())) {
            valueHolder = resolvedValues.getGenericArgumentValue(null, null, usedValueHolders);
        }
        if (valueHolder != null) {
            // We found a potential match - let's give it a try.
            // Do not consider the same value definition multiple times!
            usedValueHolders.add(valueHolder);
            Object originalValue = valueHolder.getValue();
            Object convertedValue;
            if (valueHolder.isConverted()) {
                convertedValue = valueHolder.getConvertedValue();
                args.preparedArguments[paramIndex] = convertedValue;
            } else {
                ConstructorArgumentValues.ValueHolder sourceHolder = (ConstructorArgumentValues.ValueHolder) valueHolder.getSource();
                Object sourceValue = sourceHolder.getValue();
                MethodParameter methodParam = MethodParameter.forExecutable(executable, paramIndex);
                try {
                    convertedValue = converter.convertIfNecessary(originalValue, paramType, methodParam);
                    // TODO re-enable once race condition has been found (SPR-7423)
                    /*
						if (originalValue == sourceValue || sourceValue instanceof TypedStringValue) {
							// Either a converted value or still the original one: store converted value.
							sourceHolder.setConvertedValue(convertedValue);
							args.preparedArguments[paramIndex] = convertedValue;
						}
						else {
						*/
                    args.resolveNecessary = true;
                    args.preparedArguments[paramIndex] = sourceValue;
                // }
                } catch (TypeMismatchException ex) {
                    throw new UnsatisfiedDependencyException(mbd.getResourceDescription(), beanName, new InjectionPoint(methodParam), "Could not convert argument value of type [" + ObjectUtils.nullSafeClassName(valueHolder.getValue()) + "] to required type [" + paramType.getName() + "]: " + ex.getMessage());
                }
            }
            args.arguments[paramIndex] = convertedValue;
            args.rawArguments[paramIndex] = originalValue;
        } else {
            MethodParameter methodParam = MethodParameter.forExecutable(executable, paramIndex);
            // have to fail creating an argument array for the given constructor.
            if (!autowiring) {
                throw new UnsatisfiedDependencyException(mbd.getResourceDescription(), beanName, new InjectionPoint(methodParam), "Ambiguous argument values for parameter of type [" + paramType.getName() + "] - did you specify the correct bean references as arguments?");
            }
            try {
                Object autowiredArgument = resolveAutowiredArgument(methodParam, beanName, autowiredBeanNames, converter);
                args.rawArguments[paramIndex] = autowiredArgument;
                args.arguments[paramIndex] = autowiredArgument;
                args.preparedArguments[paramIndex] = new AutowiredArgumentMarker();
                args.resolveNecessary = true;
            } catch (BeansException ex) {
                throw new UnsatisfiedDependencyException(mbd.getResourceDescription(), beanName, new InjectionPoint(methodParam), ex);
            }
        }
    }
    for (String autowiredBeanName : autowiredBeanNames) {
        this.beanFactory.registerDependentBean(autowiredBeanName, beanName);
        if (this.beanFactory.logger.isDebugEnabled()) {
            this.beanFactory.logger.debug("Autowiring by type from bean name '" + beanName + "' via " + (executable instanceof Constructor ? "constructor" : "factory method") + " to bean named '" + autowiredBeanName + "'");
        }
    }
    return args;
}

Example 2 with MethodParameter

use of org.springframework.core.MethodParameter in project spring-framework by spring-projects.

the class ConstructorResolver method resolvePreparedArguments.

/**
	 * Resolve the prepared arguments stored in the given bean definition.
	 */
private Object[] resolvePreparedArguments(String beanName, RootBeanDefinition mbd, BeanWrapper bw, Executable executable, Object[] argsToResolve) {
    TypeConverter customConverter = this.beanFactory.getCustomTypeConverter();
    TypeConverter converter = (customConverter != null ? customConverter : bw);
    BeanDefinitionValueResolver valueResolver = new BeanDefinitionValueResolver(this.beanFactory, beanName, mbd, converter);
    Class<?>[] paramTypes = executable.getParameterTypes();
    Object[] resolvedArgs = new Object[argsToResolve.length];
    for (int argIndex = 0; argIndex < argsToResolve.length; argIndex++) {
        Object argValue = argsToResolve[argIndex];
        MethodParameter methodParam = MethodParameter.forExecutable(executable, argIndex);
        GenericTypeResolver.resolveParameterType(methodParam, executable.getDeclaringClass());
        if (argValue instanceof AutowiredArgumentMarker) {
            argValue = resolveAutowiredArgument(methodParam, beanName, null, converter);
        } else if (argValue instanceof BeanMetadataElement) {
            argValue = valueResolver.resolveValueIfNecessary("constructor argument", argValue);
        } else if (argValue instanceof String) {
            argValue = this.beanFactory.evaluateBeanDefinitionString((String) argValue, mbd);
        }
        Class<?> paramType = paramTypes[argIndex];
        try {
            resolvedArgs[argIndex] = converter.convertIfNecessary(argValue, paramType, methodParam);
        } catch (TypeMismatchException ex) {
            throw new UnsatisfiedDependencyException(mbd.getResourceDescription(), beanName, new InjectionPoint(methodParam), "Could not convert argument value of type [" + ObjectUtils.nullSafeClassName(argValue) + "] to required type [" + paramType.getName() + "]: " + ex.getMessage());
        }
    }
    return resolvedArgs;
}

Example 3 with MethodParameter

use of org.springframework.core.MethodParameter in project spring-framework by spring-projects.

the class QualifierAnnotationAutowireBeanFactoryTests method testAutowireCandidateWithMultipleCandidatesDescriptor.

@Test
public void testAutowireCandidateWithMultipleCandidatesDescriptor() throws Exception {
    DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
    ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
    cavs1.addGenericArgumentValue(JUERGEN);
    RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
    person1.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
    lbf.registerBeanDefinition(JUERGEN, person1);
    ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
    cavs2.addGenericArgumentValue(MARK);
    RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
    person2.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
    lbf.registerBeanDefinition(MARK, person2);
    DependencyDescriptor qualifiedDescriptor = new DependencyDescriptor(new MethodParameter(QualifiedTestBean.class.getDeclaredConstructor(Person.class), 0), false);
    assertTrue(lbf.isAutowireCandidate(JUERGEN, qualifiedDescriptor));
    assertTrue(lbf.isAutowireCandidate(MARK, qualifiedDescriptor));
}

Example 4 with MethodParameter

use of org.springframework.core.MethodParameter in project spring-framework by spring-projects.

the class TypeDescriptorTests method nestedMethodParameterTypeMap.

@Test
public void nestedMethodParameterTypeMap() throws Exception {
    TypeDescriptor t1 = TypeDescriptor.nested(new MethodParameter(getClass().getMethod("test3", Map.class), 0), 1);
    assertEquals(String.class, t1.getType());
}

Example 5 with MethodParameter

use of org.springframework.core.MethodParameter in project spring-framework by spring-projects.

the class TypeDescriptorTests method nestedMethodParameterType2Levels.

@Test
public void nestedMethodParameterType2Levels() throws Exception {
    TypeDescriptor t1 = TypeDescriptor.nested(new MethodParameter(getClass().getMethod("test2", List.class), 0), 2);
    assertEquals(String.class, t1.getType());
}