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package com.sun.enterprise.admin.server.core.mbean.config;
//JDK imports
import java.beans.*;
import java.lang.reflect.*;
//Logging imports
import java.util.logging.Logger;
import com.sun.logging.LogDomains;
//Our imports
import com.sun.enterprise.config.*;
import com.sun.enterprise.config.serverbeans.*;
import com.sun.enterprise.admin.util.ArgChecker;
public final class ConfigBeanIntrospector
{
private static final Logger sLogger =
LogDomains.getLogger(LogDomains.ADMIN_LOGGER);
public static Object instantiate(Class bean, Object[] params)
throws Exception
{
ArgChecker.checkValid(bean, "bean"); //NOI18N
ArgChecker.checkValid(params, "params"); //NOI18N
Class[] paramTypes = new Class[params.length];
for (int i = 0; i < params.length; i++)
{
paramTypes[i] = params[i].getClass();
}
Constructor ctor = bean.getConstructor(paramTypes);
Object inst = ctor.newInstance(params);
return inst;
}
public static boolean isAttributeSupported(Class beanClass,
String attributeName)
{
boolean isSupported = false;
try
{
PropertyDescriptor pd = getPropertyDescriptor(beanClass,
attributeName);
isSupported = (pd != null);
}
catch (Exception e)
{
sLogger.throwing(ConfigBeanIntrospector.class.getName(),
"isAttributeSupported", e);
isSupported = false;
}
return isSupported;
}
public static boolean isAttributeReadable(Class beanClass,
String attributeName)
{
boolean isReadable = false;
try
{
Method m = getGetter(beanClass, attributeName);
isReadable = (m != null);
}
catch (Exception e)
{
sLogger.throwing(ConfigBeanIntrospector.class.getName(),
"isAttributeReadable", e);
isReadable = false;
}
return isReadable;
}
public static boolean isAttributeWritable(Class beanClass,
String attributeName)
{
boolean isWritable = false;
try
{
Method m = getSetter(beanClass, attributeName);
isWritable = (m != null);
}
catch (Exception e)
{
sLogger.throwing(ConfigBeanIntrospector.class.getName(),
"isAttributeWritable", e);
isWritable = false;
}
return isWritable;
}
public static Object invokeGetter(Object target, String attributeName)
throws Exception
{
ArgChecker.checkValid(target, "target"); //NOI18N
ArgChecker.checkValid(attributeName, "attributeName"); //NOI18N
Object ret = null;
Class beanClass = target.getClass();
Method getter = getGetter(beanClass, attributeName);
if (getter != null)
{
ret = getter.invoke(target, (Object[])null);
}
return ret;
}
public static void invokeSetter(Object target,
String attributeName,
Object value)
throws Exception
{
ArgChecker.checkValid(target, "target"); //NOI18N
ArgChecker.checkValid(attributeName, "attributeName"); //NOI18N
Class beanClass = target.getClass();
Method setter = getSetter(beanClass, attributeName);
if (setter != null)
{
setter.invoke(target, new Object[] {value});
}
}
private static Method getGetter(Class beanClass, String attributeName)
throws Exception
{
Method m = null;
PropertyDescriptor pd = getPropertyDescriptor(beanClass, attributeName);
if (pd != null)
{
m = pd.getReadMethod();
}
return m;
}
private static Method getSetter(Class beanClass, String attributeName)
throws Exception
{
Method m = null;
PropertyDescriptor pd = getPropertyDescriptor(beanClass, attributeName);
if (pd != null)
{
m = pd.getWriteMethod();
}
return m;
}
private static PropertyDescriptor getPropertyDescriptor(Class beanClass,
String attributeName)
throws Exception
{
PropertyDescriptor descriptor = null;
BeanInfo javaBeanInfo = Introspector.getBeanInfo(beanClass);
PropertyDescriptor[] pds = javaBeanInfo.getPropertyDescriptors();
for (int i = 0; i < pds.length; i++)
{
PropertyDescriptor pd = pds[i];
if (pd.getName().equals(attributeName))
{
descriptor = pd;
break;
}
}
return descriptor;
}
public static void main(String[] args) throws Exception
{
ConfigContext ctx = ConfigFactory.createConfigContext(
"/u/ramakant/server.xml", true);
Object obj = null;
// Server baseBean = (Server) ctx.getRootConfigBean();
Config config = (Config)ConfigBeansFactory.getConfigBeanByXPath(ctx, ServerXPathHelper.XPATH_CONFIG);
IiopService iiopService = config.getIiopService();
obj = iiopService.getIiopListenerById("orb-listener-1");
//Getters
Object value = ConfigBeanIntrospector.invokeGetter(obj, "id");
sLogger.info(value.toString());
try
{
ConfigBeanIntrospector.invokeGetter(obj, "abcd");
}
catch (Exception e)
{
sLogger.info("OK " + e.getMessage());
}
//Setters
ConfigBeanIntrospector.invokeSetter(obj, "id", "surya10");
ConfigBeanIntrospector.invokeSetter(obj, "port",
new Integer(8888).toString());
ctx.flush(true);
}
}
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