/*
* Lokomo OneCMDB - An Open Source Software for Configuration
* Management of Datacenter Resources
*
* Copyright (C) 2006 Lokomo Systems AB
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*
* Lokomo Systems AB can be contacted via e-mail: info@lokomo.com or via
* paper mail: Lokomo Systems AB, Sv�rdv�gen 27, SE-182 33
* Danderyd, Sweden.
*
*/
package org.onecmdb.core.internal.job.workflow;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.onecmdb.core.IAttribute;
import org.onecmdb.core.ICi;
import org.onecmdb.core.IValue;
public class CiToJavaObject {
private Log log = LogFactory.getLog(this.getClass());
private HashMap<String, String> aliasToClassNameMap = new HashMap<String, String>();
private HashMap<String, Class> aliasToClassMap = new HashMap<String, Class>();
private List<URL> urls;
public void setClasspath(List<URL> urls) {
this.urls = urls;
}
private ClassLoader getClassLoader() {
if (this.urls != null) {
return(new URLClassLoader((URL[])this.urls.toArray(), this.getClass().getClassLoader()));
}
return(this.getClass().getClassLoader());
}
public void addAliasToClass(String alias, String javaClass) {
this.aliasToClassNameMap.put(alias, javaClass);
}
public void setAliasToClass(Map<String, String> map) {
this.aliasToClassNameMap.putAll(map);
}
public Object toBeanObject(ICi ci) {
String alias;
if (ci.isBlueprint()) {
alias = ci.getAlias();
} else {
ICi parent = ci.getDerivedFrom();
alias = parent.getAlias();
}
Class cl = getClassForAlias(alias);
if (cl == null) {
log.warn("No class with alias " + alias + " found!");
return(null);
/*
throw new IllegalArgumentException("No class found for alias <"
+ alias + ">");
*/
}
Object instance = null;
try {
instance = cl.newInstance();
} catch (InstantiationException e) {
throw new IllegalArgumentException("alias <" + alias + "> "
+ e.toString(), e);
} catch (IllegalAccessException e) {
throw new IllegalArgumentException("alias <" + alias + "> "
+ e.toString(), e);
}
HashMap<String, Object> map = buildAttributeMap(ci);
Method[] methods = instance.getClass().getMethods();
HashMap<String, Method> methodMap = new HashMap<String, Method>();
for (int i = 0; i < methods.length; i++) {
String name = methods[i].getName().toLowerCase();
methodMap.put(name, methods[i]);
}
for (String methodName : map.keySet()) {
Object o = map.get(methodName);
String setMethodName = "set" + methodName;
String setMethodNameLowerCase = setMethodName.toLowerCase();
Method m = methodMap.get(setMethodNameLowerCase);
if (m == null) {
log.warn("No method " + setMethodName +" found in class " + cl.getName() +" with alias " + alias + " found!");
// For now we skip the set method...
continue;
/*
throw new IllegalArgumentException(
"No method in " + cl.getName() + "." + setMethodName + "(" + o
+ ")");
*/
}
try {
m.invoke(instance, new Object[] {o});
} catch (Exception e) {
throw new IllegalArgumentException(
"Error:" + cl.getName() + "." + m.getName() + "(" + o
+ ") : " + e.toString(), e);
}
}
return (instance);
}
private HashMap<String, Object> buildAttributeMap(ICi ci) {
HashMap<String, Object> setterMap = new HashMap<String, Object>();
HashMap<String, Object> attributeMap = new HashMap<String, Object>();
for (IAttribute a : ci.getAttributes()) {
if (a.getMaxOccurs() == 0) {
continue;
}
if (a.getMaxOccurs() == 1) {
// Add One object
attributeMap.put(a.getAlias(), a);
} else {
List<IAttribute> list = (List<IAttribute>) attributeMap.get(a
.getAlias());
if (list == null) {
list = new ArrayList<IAttribute>();
attributeMap.put(a.getAlias(), list);
}
list.add(a);
}
}
for (String alias : attributeMap.keySet()) {
Object o = attributeMap.get(alias);
if (o instanceof IAttribute) {
Object value = getValueFromAttribute((IAttribute) o);
if (value != null) {
setterMap.put(alias, value);
}
}
if (o instanceof List) {
List objects = new ArrayList();
List<IAttribute> list = (List<IAttribute>) o;
for (IAttribute a : list) {
Object value = getValueFromAttribute(a);
if (value != null) {
objects.add(value);
}
}
setterMap.put(alias, objects);
}
}
return (setterMap);
}
private Object getValueFromAttribute(IAttribute a) {
IValue value = a.getValue();
if (value == null) {
return (null);
}
if (value instanceof ICi) {
// Simple value.
return (toBeanObject((ICi) value));
}
// Simple type.
return (value.getAsString());
}
public String getAliasForClass(Class triggerClass) {
// TODO Auto-generated method stub
return null;
}
public Class getClassForAlias(String alias) {
Class clazz = aliasToClassMap.get(alias);
if (clazz == null) {
ClassLoader loader = getClassLoader();
String className = aliasToClassNameMap.get(alias);
if (className == null) {
return(null);
}
try {
clazz = loader.loadClass(className);
} catch (ClassNotFoundException e) {
throw new IllegalArgumentException("Class " + className + " for alias " + alias + " not found: " + e.toString(), e);
}
aliasToClassMap.put(alias, clazz);
}
return(clazz);
}
}