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/*
* ConfigChangeFactory.java
*
* Created on February 19, 2004, 9:41 AM
*/
package com.sun.enterprise.config;
import com.sun.enterprise.config.ConfigException;
import com.sun.enterprise.config.impl.ConfigAddImpl;
import com.sun.enterprise.config.impl.ConfigUpdateImpl;
import com.sun.enterprise.config.impl.ConfigSetImpl;
import com.sun.enterprise.config.impl.ConfigDeleteImpl;
import com.sun.enterprise.config.util.LoggerHelper;
/**
* This factory has static methods to create
* Configchange objects from a configbean.
* It creates specific ConfigChange Interfaces
* using the implementations from the impl package.
*
* This factory is used by the configcontext while
* generating config change objects during its operation.
*
* This factory can also be used by other modules to
* generate configChange objects that can be serialized
* and reapplied in a different VM
*
* @author sridatta
*/
public class ConfigChangeFactory {
/**
* creates a ConfigAdd object based on the parameters.
* This method should be used only if the configbean
* for the xpath already exists
*
* @return ConfigAdd object that can be applied to a different context.
* @param ctx from where the config bean needs to be taken
* @param xpath of the config bean to be used for creating configAdd
* @throws ConfigException
*/
public static ConfigAdd createConfigAdd(ConfigContext ctx, String xpath) throws ConfigException {
try {
return new ConfigAddImpl(ctx, xpath);
} catch(ConfigException ce) {
LoggerHelper.info("ConfigChangeFactory.createConfigAdd: Error creating config Add", ce);
throw ce;
}
}
/**
* This method is to be used is the config add is to be created
* for a config bean that is still not added to the tree
* @param parentXpath
* @param childXpath
* @param name
* @param cb
* @return
*/
public static ConfigAdd createConfigAdd(String parentXpath,
String childXpath,
String name,
ConfigBean cb) {
return new ConfigAddImpl(parentXpath, childXpath, name, cb);
}
/**
* creates a ConfigUpdate given old and new value
* @param xpath
* @param attrName
* @param oldValue
* @param newValue
* @return
*/
public static ConfigUpdate createConfigUpdate(String xpath,
String attrName,
String oldValue,
String newValue) {
return new ConfigUpdateImpl(xpath, attrName, oldValue, newValue);
}
/**
* creates a ConfigSet
* @return
*/
public static ConfigSet createConfigSet(String parentXpath,
String name,
Object cb,
Object[] cbArray) {
return new ConfigSetImpl(parentXpath, name, cb, cbArray);
}
/**
* creates a configdelete
*/
public static ConfigDelete createConfigDelete(String xpath) {
return new ConfigDeleteImpl(xpath);
}
}