org.mule.runtime.config.internal.dsl.spring.EagerObjectCreator Maven / Gradle / Ivy
/*
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.runtime.config.internal.dsl.spring;
import static java.lang.String.format;
import static org.apache.commons.beanutils.BeanUtils.setProperty;
import static org.mule.runtime.api.i18n.I18nMessageFactory.createStaticMessage;
import static org.springframework.beans.factory.support.BeanDefinitionBuilder.rootBeanDefinition;
import org.mule.runtime.api.exception.MuleRuntimeException;
import org.mule.runtime.api.ioc.ObjectProvider;
import org.mule.runtime.config.api.dsl.processor.AbstractAttributeDefinitionVisitor;
import org.mule.runtime.config.internal.dsl.model.SpringComponentModel;
import org.mule.runtime.config.internal.factories.ConstantFactoryBean;
import org.mule.runtime.dsl.api.component.ComponentBuildingDefinition;
import org.mule.runtime.dsl.api.component.SetterAttributeDefinition;
import com.google.common.collect.ImmutableSet;
import java.util.Map;
import java.util.Optional;
/**
* Creates objects form the DSL representation which are required before any other object. Such objects do not support full DI
* since they must be fully functional before all the artifacts objects are created.
*
* @since 4.0
*/
class EagerObjectCreator extends BeanDefinitionCreator {
/**
* These are the set of component model types that will not support complete dependency injection and lifecycle capabilities
* because they are required to be created before the whole
*/
private final ImmutableSet> earlyCreationObjectTypes =
ImmutableSet.>builder()
.add(ObjectProvider.class)
.build();
@Override
boolean handleRequest(CreateBeanDefinitionRequest createBeanDefinitionRequest) {
SpringComponentModel componentModel = createBeanDefinitionRequest.getComponentModel();
Class type = componentModel.getType();
if (type == null) {
return false;
}
Optional> foundClass = earlyCreationObjectTypes.stream().filter(clazz -> clazz.isAssignableFrom(type)).findAny();
return foundClass.map(clazz -> {
ComponentBuildingDefinition componentBuildingDefinition = createBeanDefinitionRequest.getComponentBuildingDefinition();
Object instance;
try {
instance = type.newInstance();
} catch (Exception e) {
throw new MuleRuntimeException(createStaticMessage("Could not create an instance of '%s' using default constructor. Early created object must have a default constructor",
type.getName()));
}
componentBuildingDefinition.getSetterParameterDefinitions().forEach(attributeDefinition -> {
SetterAttributeDefinition setterAttributeDefinition = (SetterAttributeDefinition) attributeDefinition;
setterAttributeDefinition.getAttributeDefinition().accept(new AbstractAttributeDefinitionVisitor() {
@Override
public void onUndefinedSimpleParameters() {
Map parameters = componentModel.getParameters();
String attributeName = setterAttributeDefinition.getAttributeName();
try {
setProperty(instance, attributeName, parameters);
} catch (Exception e) {
throw new MuleRuntimeException(e);
}
}
@Override
protected void doOnOperation(String operation) {
throw new MuleRuntimeException(createStaticMessage(format("Attribute definition with operation '%s' is not supported for earlyCreationObjects",
operation)));
}
});
});
componentModel.setObjectInstance(instance);
componentModel.setBeanDefinition(rootBeanDefinition(ConstantFactoryBean.class)
.addConstructorArgValue(instance).getBeanDefinition());
return true;
}).orElse(false);
}
}