/*
* 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 org.mule.runtime.api.i18n.I18nMessageFactory.createStaticMessage;
import static org.mule.runtime.core.util.ClassUtils.withContextClassLoader;
import static org.mule.runtime.module.extension.internal.util.IntrospectionUtils.checkInstantiable;
import org.mule.runtime.api.connection.ConnectionProvider;
import org.mule.runtime.api.exception.MuleRuntimeException;
import org.mule.runtime.extension.api.exception.IllegalModelDefinitionException;
import org.mule.runtime.extension.api.runtime.connectivity.ConnectionProviderFactory;
import org.mule.runtime.extension.api.exception.IllegalConnectionProviderModelDefinitionException;
/**
* Creates instances of {@link ConnectionProvider} based on a {@link #providerClass}
*
* @param <C> the generic type for the connections that the created {@link ConnectionProvider providers} produce
* @since 4.0
*/
final class DefaultConnectionProviderFactory<C> implements ConnectionProviderFactory<C> {
private final Class<? extends ConnectionProvider> providerClass;
private final ClassLoader extensionClassLoader;
/**
* Creates a new instance which creates {@link ConnectionProvider} instances of the given {@code providerClass}
*
* @param providerClass the {@link Class} of the created {@link ConnectionProvider providers}
* @param extensionClassLoader the {@link ClassLoader} on which the extension is loaded
* @throws IllegalModelDefinitionException if {@code providerClass} doesn't implement the {@link ConnectionProvider} interface
* @throws IllegalArgumentException if {@code providerClass} is not an instantiable type
*/
DefaultConnectionProviderFactory(Class<?> providerClass, ClassLoader extensionClassLoader) {
this.extensionClassLoader = extensionClassLoader;
if (!ConnectionProvider.class.isAssignableFrom(providerClass)) {
throw new IllegalConnectionProviderModelDefinitionException(String
.format("Class '%s' was specified as a connection provider but it doesn't implement the '%s' interface",
providerClass.getName(), ConnectionProvider.class.getName()));
}
checkInstantiable(providerClass);
this.providerClass = (Class<? extends ConnectionProvider>) providerClass;
}
/**
* {@inheritDoc}
*/
@Override
public ConnectionProvider<C> newInstance() {
try {
return (ConnectionProvider) withContextClassLoader(extensionClassLoader, providerClass::newInstance);
} catch (Exception e) {
throw new MuleRuntimeException(createStaticMessage("Could not create connection provider of type "
+ providerClass.getName()), e);
}
}
/**
* {@inheritDoc}
*/
@Override
public Class<? extends ConnectionProvider> getObjectType() {
return providerClass;
}
}