CompositeAttributePropertyDescriptor.java

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package com.sun.faces.facelets.tag.composite;

import com.sun.faces.facelets.util.ReflectionUtil;
import java.beans.IntrospectionException;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Method;
import javax.el.ELContext;
import javax.el.ValueExpression;
import javax.faces.FacesException;
import javax.faces.context.FacesContext;

/**
 * A property descriptor for a composite component attribute.
 */
public class CompositeAttributePropertyDescriptor extends PropertyDescriptor {

    public CompositeAttributePropertyDescriptor(String propertyName, Method readMethod, Method writeMethod) throws IntrospectionException {
        super(propertyName, readMethod, writeMethod);
    }

    @Override
    public Object getValue(String attributeName) {
        Object result = super.getValue(attributeName);
        if ("type".equals(attributeName) && (null != result) && !(result instanceof Class)) {
            FacesContext context = FacesContext.getCurrentInstance();
            ELContext elContext = context.getELContext();
            String classStr = (String) ((ValueExpression) result).getValue(elContext);
            if (null != classStr) {
                try {
                    result = ReflectionUtil.forName(classStr);

                    this.setValue(attributeName, result);
                } catch (ClassNotFoundException ex) {
                    classStr = "java.lang." + classStr; // NOPMD
                    boolean throwException = false;
                    try {
                        result = ReflectionUtil.forName(classStr);

                        this.setValue(attributeName, result);
                    } catch (ClassNotFoundException ex2) {
                        throwException = true;
                    }
                    if (throwException) {
                        String message = "Unable to obtain class for " + classStr;
                        throw new FacesException(message, ex);
                    }
                }
            }
        }
        return result;
    }
}