com.quinsoft.zeidon.utils.JspWebUtils.java Source code

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Here is the source code for com.quinsoft.zeidon.utils.JspWebUtils.java

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/**
This file is part of the Zeidon Java Object Engine (Zeidon JOE).
    
Zeidon JOE 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.
    
Zeidon JOE 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 Zeidon JOE.  If not, see <http://www.gnu.org/licenses/>.
    
Copyright 2009-2015 QuinSoft
 */

package com.quinsoft.zeidon.utils;

import java.util.List;
import javax.servlet.http.HttpSession;

import com.quinsoft.zeidon.ObjectEngine;
import com.quinsoft.zeidon.TaskQualification;
import com.quinsoft.zeidon.Task;
import com.quinsoft.zeidon.View;
import com.quinsoft.zeidon.ZeidonException;
import com.quinsoft.zeidon.domains.Domain;
import com.quinsoft.zeidon.domains.TableDomain;
import com.quinsoft.zeidon.domains.TableEntry;
import com.quinsoft.zeidon.objectdefinition.DomainType;
import com.quinsoft.zeidon.objectdefinition.AttributeDef;
import com.quinsoft.zeidon.objectdefinition.EntityDef;
import com.quinsoft.zeidon.objectdefinition.LodDef;
import org.apache.commons.lang3.StringUtils;

/**
 * @author DG
 *
 */
public class JspWebUtils {
    public static final String WEB_SESSION_VIEW_NAME = "_KZXMLPGO";

    public static View createWebSession(Object s, TaskQualification qual, String userId) {
        View view = null;

        if (qual != null) {
            Task task = qual.getTask();
            view = task.getViewByName(WEB_SESSION_VIEW_NAME);
            if (view == null) {
                view = task.activateEmptyObjectInstance("KZXMLPGO", ObjectEngine.ZEIDON_SYSTEM_APP_NAME);
                view.setName(WEB_SESSION_VIEW_NAME);
                if (!view.cursor("Session").setFirst("TaskID", task.toString()).isSet()) {
                    view.cursor("Session").createEntity().getAttribute("TaskID").setValue(task.toString())
                            .getAttribute("UserID").setValue(userId); // initialize UserID (even if blank)
                }
            }
        }

        if (StringUtils.isBlank(userId) == false) // always reset the UserID (if not blank)
        {
            if (view != null)
                view.cursor("Session").getAttribute("UserID").setValue(userId);
        }

        return view;
    }

    public static String getWebSessionUserId(Object s, TaskQualification qual) {
        HttpSession session = (HttpSession) s;
        String userId = "";

        if (session != null) // try to get the userId from the session if possible
            userId = (String) session.getAttribute("UserId");
        else if (qual != null) {
            Task task = qual.getTask();
            View view = task.getViewByName(WEB_SESSION_VIEW_NAME);
            if (view != null && view.cursor("Session").setFirst("TaskID", task).isSet())
                userId = view.cursor("Session").getAttribute("UserID").getString();
        }

        return userId;
    }

    public static List<TableEntry> getTableDomainValues(View view, String entityName, String attribName,
            String contextName) {
        Task task = view.getTask();
        LodDef lodDef = view.getLodDef();
        EntityDef entityDef = lodDef.getEntityDef(entityName);
        AttributeDef attributeDef = entityDef.getAttribute(attribName);
        Domain domain = attributeDef.getDomain();
        if (domain.getDomainType() != DomainType.TABLE)
            throw new ZeidonException("Domain %s is not a Table Domain for attribute %s ", domain.getName(),
                    attributeDef.toString());

        TableDomain tableDomain = (TableDomain) domain;
        return tableDomain.getTableEntries(task, contextName);
    }

    public void TestKellysJspCode() {
        List<TableEntry> list = getTableDomainValues(null, "entityName", "attribName", "contextName");
        for (TableEntry entry : list) {
            String externalValue = entry.getExternalValue();
            String internalValue = entry.getInternalValue();
        }
    }
}