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With inspiration from other libraries
/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2015, QOS.ch. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation.
*/
package ch.qos.logback.core.joran.spi;
import java.util.HashMap;
import java.util.Map;
/**
* A registry which maps a property in a host class to a default class.
*
* @author Ceki Gülcü
*
*/
public class DefaultNestedComponentRegistry {
Map> defaultComponentMap = new HashMap>();
public void add(Class hostClass, String propertyName, Class componentClass) {
HostClassAndPropertyDouble hpDouble = new HostClassAndPropertyDouble(hostClass, propertyName.toLowerCase());
defaultComponentMap.put(hpDouble, componentClass);
}
public Class findDefaultComponentType(Class hostClass, String propertyName) {
propertyName = propertyName.toLowerCase();
while (hostClass != null) {
Class componentClass = oneShotFind(hostClass, propertyName);
if (componentClass != null) {
return componentClass;
}
hostClass = hostClass.getSuperclass();
}
return null;
}
private Class oneShotFind(Class hostClass, String propertyName) {
HostClassAndPropertyDouble hpDouble = new HostClassAndPropertyDouble(hostClass, propertyName);
return defaultComponentMap.get(hpDouble);
}
}