com.haulmont.cuba.portal.sys.exceptions.PortalExceptionResolver.java Source code

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Here is the source code for com.haulmont.cuba.portal.sys.exceptions.PortalExceptionResolver.java

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/*
 * Copyright (c) 2008-2016 Haulmont.
 *
 * 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 com.haulmont.cuba.portal.sys.exceptions;

import com.haulmont.cuba.security.global.NoUserSessionException;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.exception.ExceptionUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class PortalExceptionResolver implements HandlerExceptionResolver {

    private static final Logger log = LoggerFactory.getLogger(PortalExceptionResolver.class);

    private String noUserSessionUrl;

    private String noMiddlewareConnectionUrl;

    public String getNoUserSessionUrl() {
        return noUserSessionUrl;
    }

    public void setNoUserSessionUrl(String noUserSessionUrl) {
        this.noUserSessionUrl = noUserSessionUrl;
    }

    public String getNoMiddlewareConnectionUrl() {
        return noMiddlewareConnectionUrl;
    }

    public void setNoMiddlewareConnectionUrl(String noMiddlewareConnectionUrl) {
        this.noMiddlewareConnectionUrl = noMiddlewareConnectionUrl;
    }

    @Override
    public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler,
            Exception ex) {
        if (ex instanceof NoUserSessionException) {
            log.warn(ex.getMessage());

            HttpSession httpSession = request.getSession();
            httpSession.invalidate();

            if (StringUtils.isNotEmpty(noUserSessionUrl))
                return new ModelAndView("redirect:" + noUserSessionUrl);
            else
                return new ModelAndView("redirect:/");
        } else if (ex instanceof NoMiddlewareConnectionException) {
            log.error(ex.getMessage());
            HttpSession httpSession = request.getSession();
            httpSession.invalidate();

            if (StringUtils.isNotEmpty(noMiddlewareConnectionUrl))
                return new ModelAndView(noMiddlewareConnectionUrl);
            else
                return new ModelAndView("/");
        } else {
            log.error(ExceptionUtils.getStackTrace(ex));
        }

        return null;
    }
}