/*
* 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.module.extension.internal.loader.java;
import static java.lang.String.format;
import static org.mule.runtime.extension.api.annotation.Extension.DEFAULT_CONFIG_DESCRIPTION;
import static org.mule.runtime.extension.api.annotation.Extension.DEFAULT_CONFIG_NAME;
import org.mule.runtime.api.meta.model.declaration.fluent.ConfigurationDeclarer;
import org.mule.runtime.api.meta.model.declaration.fluent.ExtensionDeclarer;
import org.mule.runtime.extension.api.annotation.Configuration;
import org.mule.runtime.extension.api.exception.IllegalConfigurationModelDefinitionException;
import org.mule.runtime.module.extension.internal.loader.java.property.ConfigurationFactoryModelProperty;
import org.mule.runtime.module.extension.internal.loader.java.property.ImplementingTypeModelProperty;
import org.mule.runtime.module.extension.internal.loader.java.type.ComponentElement;
import org.mule.runtime.module.extension.internal.loader.java.type.ConfigurationElement;
import org.mule.runtime.module.extension.internal.loader.java.type.ExtensionElement;
import org.mule.runtime.module.extension.internal.loader.utils.ParameterDeclarationContext;
import java.util.List;
import java.util.Optional;
/**
* Helper class for declaring configurations through a {@link DefaultJavaModelLoaderDelegate}
*
* @since 4.0
*/
final class ConfigModelLoaderDelegate extends AbstractModelLoaderDelegate {
private static final String CONFIGURATION = "Configuration";
ConfigModelLoaderDelegate(DefaultJavaModelLoaderDelegate delegate) {
super(delegate);
}
void declareConfigurations(ExtensionDeclarer declaration, ExtensionElement extensionElement) {
List<ConfigurationElement> configurations = extensionElement.getConfigurations();
if (configurations.isEmpty()) {
declareConfiguration(declaration, extensionElement, extensionElement);
} else {
for (ConfigurationElement configuration : configurations) {
declareConfiguration(declaration, extensionElement, configuration);
}
}
}
private void declareConfiguration(ExtensionDeclarer declarer, ExtensionElement extensionType, ComponentElement configType) {
checkConfigurationIsNotAnOperation(configType.getDeclaringClass());
ConfigurationDeclarer configurationDeclarer;
Optional<Configuration> configurationAnnotation = configType.getAnnotation(Configuration.class);
if (configurationAnnotation.isPresent()) {
final Configuration configuration = configurationAnnotation.get();
configurationDeclarer = declarer.withConfig(configuration.name()).describedAs(configuration.description());
} else {
configurationDeclarer =
declarer.withConfig(DEFAULT_CONFIG_NAME).describedAs(DEFAULT_CONFIG_DESCRIPTION);
}
TypeAwareConfigurationFactory typeAwareConfigurationFactory =
new TypeAwareConfigurationFactory(configType.getDeclaringClass(), extensionType.getDeclaringClass().getClassLoader());
configurationDeclarer
.withModelProperty(new ConfigurationFactoryModelProperty(typeAwareConfigurationFactory))
.withModelProperty(new ImplementingTypeModelProperty(configType.getDeclaringClass()));
loader.parseExternalLibs(configType, configurationDeclarer);
ParameterDeclarationContext context = new ParameterDeclarationContext(CONFIGURATION, configurationDeclarer.getDeclaration());
loader.getFieldParametersLoader().declare(configurationDeclarer, configType.getParameters(), context);
getOperationLoaderDelegate().declareOperations(declarer, configurationDeclarer, configType);
getSourceModelLoaderDelegate().declareMessageSources(declarer, configurationDeclarer, configType);
getConnectionProviderModelLoaderDelegate().declareConnectionProviders(configurationDeclarer, configType);
}
private void checkConfigurationIsNotAnOperation(Class<?> configurationType) {
Class<?>[] operationClasses = loader.getOperationClasses(getExtensionType());
for (Class<?> operationClass : operationClasses) {
if (configurationType.isAssignableFrom(operationClass) || operationClass.isAssignableFrom(configurationType)) {
throw new IllegalConfigurationModelDefinitionException(
format("Configuration class '%s' cannot be the same class (nor a derivative) of any operation class '%s",
configurationType.getName(), operationClass.getName()));
}
}
}
}