org.primefaces.application.exceptionhandler.PrimeExceptionHandlerELResolver Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of primefaces Show documentation

PrimeFaces is one of the most popular UI libraries in Java EE Ecosystem and widely used by software companies, world renowned brands, banks, financial institutions, insurance companies, universities and more.

There is a newer version: 14.0.5

Show newest version

/**
 * Copyright 2009-2018 PrimeTek.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.primefaces.application.exceptionhandler;

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

public class PrimeExceptionHandlerELResolver extends ELResolver {

    public static final String EL_NAME = "pfExceptionHandler";

    @Override
    public Object getValue(ELContext elContext, Object base, Object property) {

        if (EL_NAME.equals(property)) {
            elContext.setPropertyResolved(true);

            FacesContext context = FacesContext.getCurrentInstance();
            ExceptionInfo info = (ExceptionInfo) context.getAttributes().get(ExceptionInfo.ATTRIBUTE_NAME);

            if (info == null) {
                info = (ExceptionInfo) context.getExternalContext().getSessionMap().get(ExceptionInfo.ATTRIBUTE_NAME);
            }

            return info;
        }

        return null;
    }

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

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

    }

    @Override
    public boolean isReadOnly(ELContext context, Object base, Object property) {
        return true;
    }

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

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