use of org.springframework.beans.TypeConverter in project spring-framework by spring-projects.
the class DefaultListableBeanFactory method doResolveDependency.
public Object doResolveDependency(DependencyDescriptor descriptor, String beanName, Set<String> autowiredBeanNames, TypeConverter typeConverter) throws BeansException {
InjectionPoint previousInjectionPoint = ConstructorResolver.setCurrentInjectionPoint(descriptor);
try {
Object shortcut = descriptor.resolveShortcut(this);
if (shortcut != null) {
return shortcut;
}
Class<?> type = descriptor.getDependencyType();
Object value = getAutowireCandidateResolver().getSuggestedValue(descriptor);
if (value != null) {
if (value instanceof String) {
String strVal = resolveEmbeddedValue((String) value);
BeanDefinition bd = (beanName != null && containsBean(beanName) ? getMergedBeanDefinition(beanName) : null);
value = evaluateBeanDefinitionString(strVal, bd);
}
TypeConverter converter = (typeConverter != null ? typeConverter : getTypeConverter());
return (descriptor.getField() != null ? converter.convertIfNecessary(value, type, descriptor.getField()) : converter.convertIfNecessary(value, type, descriptor.getMethodParameter()));
}
Object multipleBeans = resolveMultipleBeans(descriptor, beanName, autowiredBeanNames, typeConverter);
if (multipleBeans != null) {
return multipleBeans;
}
Map<String, Object> matchingBeans = findAutowireCandidates(beanName, type, descriptor);
if (matchingBeans.isEmpty()) {
if (descriptor.isRequired()) {
raiseNoMatchingBeanFound(type, descriptor.getResolvableType(), descriptor);
}
return null;
}
String autowiredBeanName;
Object instanceCandidate;
if (matchingBeans.size() > 1) {
autowiredBeanName = determineAutowireCandidate(matchingBeans, descriptor);
if (autowiredBeanName == null) {
if (descriptor.isRequired() || !indicatesMultipleBeans(type)) {
return descriptor.resolveNotUnique(type, matchingBeans);
} else {
// (before 4.3 in particular when we didn't even look for collection beans).
return null;
}
}
instanceCandidate = matchingBeans.get(autowiredBeanName);
} else {
// We have exactly one match.
Map.Entry<String, Object> entry = matchingBeans.entrySet().iterator().next();
autowiredBeanName = entry.getKey();
instanceCandidate = entry.getValue();
}
if (autowiredBeanNames != null) {
autowiredBeanNames.add(autowiredBeanName);
}
return (instanceCandidate instanceof Class ? descriptor.resolveCandidate(autowiredBeanName, type, this) : instanceCandidate);
} finally {
ConstructorResolver.setCurrentInjectionPoint(previousInjectionPoint);
}
}
use of org.springframework.beans.TypeConverter 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;
}
use of org.springframework.beans.TypeConverter 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;
}
use of org.springframework.beans.TypeConverter in project spring-framework by spring-projects.
the class MapFactoryBean method createInstance.
@Override
@SuppressWarnings("unchecked")
protected Map<Object, Object> createInstance() {
if (this.sourceMap == null) {
throw new IllegalArgumentException("'sourceMap' is required");
}
Map<Object, Object> result = null;
if (this.targetMapClass != null) {
result = BeanUtils.instantiateClass(this.targetMapClass);
} else {
result = new LinkedHashMap<>(this.sourceMap.size());
}
Class<?> keyType = null;
Class<?> valueType = null;
if (this.targetMapClass != null) {
ResolvableType mapType = ResolvableType.forClass(this.targetMapClass).asMap();
keyType = mapType.resolveGeneric(0);
valueType = mapType.resolveGeneric(1);
}
if (keyType != null || valueType != null) {
TypeConverter converter = getBeanTypeConverter();
for (Map.Entry<?, ?> entry : this.sourceMap.entrySet()) {
Object convertedKey = converter.convertIfNecessary(entry.getKey(), keyType);
Object convertedValue = converter.convertIfNecessary(entry.getValue(), valueType);
result.put(convertedKey, convertedValue);
}
} else {
result.putAll(this.sourceMap);
}
return result;
}
use of org.springframework.beans.TypeConverter in project spring-framework by spring-projects.
the class ArgumentConvertingMethodInvoker method registerCustomEditor.
/**
* Register the given custom property editor for all properties of the given type.
* <p>Typically used in conjunction with the default
* {@link org.springframework.beans.SimpleTypeConverter}; will work with any
* TypeConverter that implements the PropertyEditorRegistry interface as well.
* @param requiredType type of the property
* @param propertyEditor editor to register
* @see #setTypeConverter
* @see org.springframework.beans.PropertyEditorRegistry#registerCustomEditor
*/
public void registerCustomEditor(Class<?> requiredType, PropertyEditor propertyEditor) {
TypeConverter converter = getTypeConverter();
if (!(converter instanceof PropertyEditorRegistry)) {
throw new IllegalStateException("TypeConverter does not implement PropertyEditorRegistry interface: " + converter);
}
((PropertyEditorRegistry) converter).registerCustomEditor(requiredType, propertyEditor);
}
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