/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.kernel.plugins.dependency;
import java.security.PrivilegedExceptionAction;
import java.util.Set;
import org.jboss.beans.info.plugins.BeanInfoUtil;
import org.jboss.beans.info.spi.BeanInfo;
import org.jboss.beans.info.spi.PropertyInfo;
import org.jboss.beans.metadata.spi.PropertyMetaData;
import org.jboss.beans.metadata.spi.ValueMetaData;
import org.jboss.kernel.Kernel;
import org.jboss.kernel.spi.config.KernelConfigurator;
import org.jboss.kernel.spi.dependency.KernelControllerContext;
import org.jboss.logging.Logger;
import org.jboss.reflect.spi.MethodInfo;
import org.jboss.reflect.spi.TypeInfo;
import org.jboss.reflect.spi.PrimitiveInfo;
/**
* PropertyDispatchWrapper.
*
* @author <a href="mailto:ales.justin@jboss.com">Ales Justin</a>
*/
class PropertyDispatchWrapper extends ExecutionWrapper
{
private static Logger log = Logger.getLogger(ConfigureAction.class);
private KernelControllerContext context;
private PropertyMetaData property;
private boolean nullify;
private BeanInfo beanInfo;
private Object target;
private ClassLoader cl;
public PropertyDispatchWrapper(KernelControllerContext context, PropertyMetaData property, boolean nullify, BeanInfo beanInfo, Object target, ClassLoader cl)
{
if (context == null)
throw new IllegalArgumentException("Null context");
this.context = context;
if (property == null)
throw new IllegalArgumentException("Null property");
this.property = property;
this.nullify = nullify;
if (beanInfo == null)
throw new IllegalArgumentException("Null bean info");
this.beanInfo = beanInfo;
if (target == null)
throw new IllegalArgumentException("Null target");
this.target = target;
this.cl = cl;
}
public Object execute() throws Throwable
{
String name = property.getName();
PropertyInfo propertyInfo = BeanInfoUtil.getPropertyInfo(beanInfo, target, name);
TypeInfo propertyTypeInfo = propertyInfo.getType();
TypeInfo typeInfo = propertyTypeInfo;
if (typeInfo == null)
typeInfo = getTypeInfo();
if (nullify)
{
if (typeInfo != null)
{
if (typeInfo.isPrimitive() == false)
{
try
{
if (propertyTypeInfo != null)
beanInfo.setProperty(target, name, null);
else // e.g. NestedPropertyInfo
nullifyByMatchingType(propertyInfo.getUpperName(), typeInfo);
}
catch (Throwable t)
{
if (log.isTraceEnabled())
log.trace("Ignored for " + target + "." + name, t);
}
}
}
else
{
log.warn("Cannot properly nullify property: " + property + ", beanInfo: " + beanInfo);
}
}
else
{
ValueMetaData valueMetaData = property.getValue();
Object value = valueMetaData.getValue(typeInfo, cl);
validatePropertyValue(context, target, propertyInfo, value);
beanInfo.setProperty(target, name, value);
}
return null;
}
/**
* Try to get type info from property's class.
*
* @return type info
* @throws Throwable for any error
*/
protected TypeInfo getTypeInfo() throws Throwable
{
String className = property.getType();
if (className == null)
return null;
Kernel kernel = context.getKernel();
KernelConfigurator configurator = kernel.getConfigurator();
return configurator.getTypeInfo(className, cl);
}
/**
* Nullify by matching type on .
*
* @param name the property name
* @param typeInfo the type info
* @throws Throwable for any error
*/
protected void nullifyByMatchingType(String name, TypeInfo typeInfo) throws Throwable
{
// TODO - remove this Character.toUpperCase once Reflect is updated
String upperName = "set" + Character.toUpperCase(name.charAt(0));
if (name.length() > 1)
upperName += name.substring(1);
Set<MethodInfo> methods = beanInfo.getMethods();
for (MethodInfo minfo : methods)
{
String miName = minfo.getName();
if (upperName.equals(miName))
{
TypeInfo returnType = minfo.getReturnType();
TypeInfo[] parameters = minfo.getParameterTypes();
if (parameters.length == 1 && PrimitiveInfo.VOID.equals(returnType) && typeInfo.equals(parameters[0]))
{
minfo.invoke(target, new Object[]{null});
return;
}
}
}
}
/**
* Validate value injection.
* Use jsr303 constraints.
*
* @param context the owner context
* @param target the target
* @param pi the property info
* @param value the new value
* @throws Throwable for any error
*/
protected void validatePropertyValue(KernelControllerContext context, Object target, PropertyInfo pi, Object value) throws Throwable
{
BeanValidatorBridge bridge = KernelControllerContextAction.getBeanValidatorBridge(context);
if (bridge != null)
bridge.validatePropertyValue(context, target, pi, value);
}
protected PrivilegedExceptionAction<Object> getAction()
{
return new PrivilegedExceptionAction<Object>()
{
public Object run() throws Exception
{
try
{
return execute();
}
catch (RuntimeException e)
{
throw e;
}
catch (Exception e)
{
throw e;
}
catch (Error e)
{
throw e;
}
catch (Throwable t)
{
throw new RuntimeException(t);
}
}
};
}
}