org.obiba.onyx.webapp.OnyxRequestCycle.java Source code

Introduction

Here is the source code for org.obiba.onyx.webapp.OnyxRequestCycle.java

Source

/*******************************************************************************
 * Copyright 2008(c) The OBiBa Consortium. All rights reserved.
 * 
 * This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package org.obiba.onyx.webapp;

import org.apache.wicket.Page;
import org.apache.wicket.Response;
import org.apache.wicket.Session;
import org.apache.wicket.model.IModel;
import org.apache.wicket.protocol.http.PageExpiredException;
import org.apache.wicket.protocol.http.WebApplication;
import org.apache.wicket.protocol.http.WebRequest;
import org.apache.wicket.protocol.http.WebRequestCycle;
import org.mozilla.javascript.EcmaError;
import org.obiba.magma.MagmaRuntimeException;
import org.obiba.onyx.core.exception.ExceptionUtils;
import org.obiba.onyx.core.service.impl.NoSuchInterviewException;
import org.obiba.onyx.engine.Stage;
import org.obiba.onyx.webapp.home.page.InternalErrorPage;
import org.obiba.onyx.webapp.login.page.LoginPage;
import org.obiba.onyx.webapp.stage.page.InternalErrorStagePage;
import org.obiba.onyx.webapp.stage.page.StagePage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * implements an alternative way of managing the runtimeExceptions
 */
class OnyxRequestCycle extends WebRequestCycle {

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

    /**
     * @param application
     * @param request
     * @param response
     */
    OnyxRequestCycle(WebApplication application, WebRequest request, Response response) {
        super(application, request, response);
    }

    @Override
    public Page onRuntimeException(Page page, RuntimeException e) {
        if (e instanceof PageExpiredException) {
            return new LoginPage();
        }

        Throwable t = e;
        log.info("Request cycle runtime exception", e);

        while (true) {
            if (t instanceof NoSuchInterviewException) {
                return newErrorPage(page, "No current interview");
            } else if (t instanceof MagmaRuntimeException || t instanceof EcmaError) {
                return newErrorPage(page, t.getMessage());
            }

            if (t.getCause() != null) {
                t = t.getCause();
            } else {
                break;
            }
        }

        return newErrorPage(page, e.getMessage());
    }

    @SuppressWarnings("unchecked")
    private Page newErrorPage(Page page, String... messages) {
        Session.get().cleanupFeedbackMessages();
        for (String msg : messages) {
            if (msg != null) {
                Session.get().error(ExceptionUtils.cleanMessage(msg));
            }
        }
        Session.get().dirty();

        Page rpage;
        if (page instanceof StagePage) {
            rpage = new InternalErrorStagePage((StagePage) page, (IModel<Stage>) page.getDefaultModel());
        } else {
            rpage = new InternalErrorPage();
        }

        return rpage;
    }
}