test.TestBackAction.java Source code

Introduction

Here is the source code for test.TestBackAction.java

Source

/*
 * Copyright (c) 2005-2016 Vincent Vandenschrick. All rights reserved.
 *
 *  This file is part of the Jspresso framework.
 *
 *  Jspresso is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Jspresso is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with Jspresso.  If not, see <http://www.gnu.org/licenses/>.
 */
package test;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import org.hibernate.criterion.Restrictions;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.support.TransactionCallbackWithoutResult;

import org.jspresso.framework.action.IActionHandler;
import org.jspresso.framework.application.backend.action.Asynchronous;
import org.jspresso.framework.application.backend.action.BackendAction;
import org.jspresso.framework.application.backend.persistence.hibernate.HibernateBackendController;
import org.jspresso.framework.application.backend.session.EMergeMode;
import org.jspresso.framework.application.frontend.action.FrontendAction;
import org.jspresso.framework.application.frontend.action.flow.InfoAction;
import org.jspresso.framework.model.persistence.hibernate.criterion.EnhancedDetachedCriteria;

import org.jspresso.hrsample.model.City;

/**
 * Test back action.
 *
 * @author Vincent Vandenschrick
 */
@Asynchronous(pushRuntimeExceptions = true, autoMergeBackEntities = true)
public class TestBackAction extends BackendAction {

    private InfoAction completionAction = new InfoAction();

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean execute(IActionHandler actionHandler, Map<String, Object> context) {
        Date start = new Date();
        try {
            for (int i = 1; i <= 10; i++) {
                Thread.sleep(1000);
                setProgress(((double) i) / 10);
            }
            final HibernateBackendController bc = (HibernateBackendController) getController(context);
            bc.getTransactionTemplate().execute(new TransactionCallbackWithoutResult() {

                @Override
                protected void doInTransactionWithoutResult(TransactionStatus status) {
                    EnhancedDetachedCriteria cityCrit = EnhancedDetachedCriteria.forClass(City.class);
                    cityCrit.add(Restrictions.eq(City.ZIP, "69000"));
                    City lyon = bc.findFirstByCriteria(cityCrit, EMergeMode.MERGE_KEEP, City.class);
                    lyon.setName(Long.toString(System.currentTimeMillis()));
                }
            });
            //      if (System.currentTimeMillis() % 2 == 0) {
            //        throw new NullPointerException(
            //            "This is a test for an unhandled exception on thread " + Thread.currentThread().getName());
            //      }
        } catch (InterruptedException ex) {
            ex.printStackTrace();
        }
        Date end = new Date();
        Map<String, Object> completionContext = new HashMap<>();
        setActionParameter("Asynchronous action that was started at " + start + "has completed at " + end,
                completionContext);
        actionHandler.executeLater(completionAction, completionContext);
        return super.execute(actionHandler, context);
    }
}