MockELResolver.java

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package com.sun.faces.mock;

import java.util.Iterator;
import javax.faces.context.FacesContext;
import javax.el.ELResolver;
import javax.el.ELContext;
import javax.el.ELException;

/**
 * <p>
 * Mock implementation of <code>ELResolver</code> that supports a limited subset
 * of expression evaluation functionality:</p>
 *
 * <ul>
 * <li>Recognizes <code>applicationScope</code>, <code>requestScope</code>, and
 * <code>sessionScope</code> implicit names.</li>
 * <li>Searches in ascending scopes for non-reserved names.</li>
 * </ul>
 */
public class MockELResolver extends ELResolver {

    private MockVariableResolver variableResolver = null;
    private MockPropertyResolver propertyResolved = null;

    // ------------------------------------------------------------ Constructors
    public MockELResolver() {
        variableResolver = new MockVariableResolver();
        propertyResolved = new MockPropertyResolver();
    }

    @Override
    public Object getValue(ELContext context, Object base, Object property)
            throws ELException {
        Object result = null;
        FacesContext facesContext = (FacesContext) context.getContext(FacesContext.class);

        if (null == base) {
            String name = (null != property) ? property.toString() : null;
            try {
                result = variableResolver.resolveVariable(facesContext, name);
            } catch (Throwable e) {
                throw new ELException(e);
            }
        } else {
            try {
                result = propertyResolved.getValue(base, property);
            } catch (Throwable e) {
                throw new ELException(e);
            }
        }
        context.setPropertyResolved(result != null);
        return result;
    }

    @Override
    public Class getType(ELContext context, Object base, Object property)
            throws ELException {
        Class result = null;
        return result;
    }

    @Override
    public void setValue(ELContext context, Object base, Object property,
            Object value) throws ELException {
    }

    @Override
    public boolean isReadOnly(ELContext context, Object base, Object property)
            throws ELException {
        boolean result = false;
        return result;
    }

    @Override
    public Iterator getFeatureDescriptors(ELContext context, Object base) {
        return null;
    }

    @Override
    public Class getCommonPropertyType(ELContext context, Object base) {
        Class result = null;
        return result;
    }
}