modelmanager.java

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/*
 
 */
package org.impact.stars.control.web;

import java.util.HashMap;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import javax.servlet.http.HttpSession;
import javax.servlet.ServletContext;

import org.impact.stars.util.Debug;
import org.impact.stars.util.WebKeys;
import org.impact.stars.util.EJBUtil;
import org.impact.stars.control.web.ConceptWebImpl;
import org.impact.stars.control.web.ConceptstrWebImpl;
import org.impact.stars.conceptmd.conceptstr.model.ConceptstrModel;
import org.impact.stars.conceptmd.conceptstr.ejb.ConceptstrLocal;
import org.impact.stars.perspectivemd.perspective.model.PerspectiveModel;
//import org.impact.stars.organizationmd.stakeholder.model.StakeholderModel;
import org.impact.stars.conflictmd.conflict.ejb.ConflictLocal;
import org.impact.stars.control.web.ConflictWebImpl;
import org.impact.stars.organizationmd.profilemgr.model.ProfileMgrModel;
import org.impact.stars.organizationmd.profilemgr.ejb.ProfileMgrLocal;
//import org.impact.stars.organizationmd.user.model.UserModel;
import org.impact.stars.organizationmd.user.ejb.UserLocal;
import org.impact.stars.control.web.ProfileMgrWebImpl;
import org.impact.stars.control.ejb.UserControllerLocal;

import java.rmi.RemoteException;
import javax.ejb.CreateException;
import javax.ejb.FinderException;
import org.impact.stars.control.exceptions.GeneralFailureException;
import org.impact.stars.control.exceptions.StarsAppException;

/**
 * Maintain the access of state information data.
 * Only session related object are stored here.
 */
public class ModelManager extends ModelUpdateNotifier implements java.io.Serializable {

    private ServletContext context;
    private HttpSession session;
    private UserControllerLocal urcEjb = null;
    private ConceptstrLocal conceptstrEjb = null;
    private ConceptstrLocal conceptEjb = null;
    private ConflictLocal conflictEjb = null;
    private ProfileMgrLocal proEjb = null;
    private UserLocal userEjb = null;
    private UserControllerWebImpl urcw = null;

    public ModelManager() { }

    public void init(ServletContext context, HttpSession session) {
        this.session = session;
        this.context = context;
        //getConflictWebImpl();
        //getConceptstrModel();
        //getConceptModel();
        getProfileMgrModel();
        //getPerspectiveModel();
        Debug.println("ModelManager init:");
    }

    public void setURC(UserControllerWebImpl urcw) {
        this.urcw = urcw;
    }

    public PerspectiveWebImpl getPerspectiveModel() {
        PerspectiveWebImpl Perspective = (PerspectiveWebImpl)
        context.getAttribute(WebKeys.PerspectiveModelKey);
        if (Perspective == null) {
            Perspective = new PerspectiveWebImpl();
            context.setAttribute(WebKeys.PerspectiveModelKey, Perspective);
        }
        return Perspective;
    }

    public ConceptWebImpl getConceptModel() {
        ConceptWebImpl Concept = (ConceptWebImpl)
        context.getAttribute(WebKeys.ConceptModelKey);
        if (Concept == null) {
            Concept = new ConceptWebImpl();
            context.setAttribute(WebKeys.ConceptModelKey, Concept);
        }
        return Concept;
    }

    public ConflictWebImpl getConflictWebImpl() {
        ConflictWebImpl conflict = (ConflictWebImpl)
        session.getAttribute(WebKeys.ConflictModelKey);
        if (conflict == null) {
            conflict = new ConflictWebImpl();
            session.setAttribute(WebKeys.ConflictModelKey, conflict);
        }
        return conflict;
    }

    public ProfileMgrModel getProfileMgrModel() {
        ProfileMgrModel pro = (ProfileMgrModel)
            session.getAttribute(WebKeys.ProfileMgrModelKey);
        if (pro == null) {
            pro = new ProfileMgrWebImpl(this);
            session.setAttribute(WebKeys.ProfileMgrModelKey, pro);
        }
        return pro;
    }
    
    public UserWebImpl getUserWebImpl() {
        UserWebImpl userwipl = (UserWebImpl)
            session.getAttribute(WebKeys.UserModelKey);
        if (userwipl == null) {
            userwipl = new UserWebImpl(this);
            session.setAttribute(WebKeys.UserModelKey, userwipl);
        }
        return userwipl;
    }

    public ConceptstrModel getConceptstrModel() {
        ConceptstrWebImpl Conceptstr = (ConceptstrWebImpl)
        context.getAttribute(WebKeys.ConceptstrModelKey);
        if (Conceptstr == null) {
            Conceptstr = new ConceptstrWebImpl();
            Conceptstr.init(context);
            context.setAttribute(WebKeys.ConceptstrModelKey, Conceptstr);
        }
        return Conceptstr;
    }

    public UserControllerLocal getURCEJB() {
        Debug.println("ModelManager: getURCEJB");
        if (urcEjb == null) {
            try {
                urcEjb = EJBUtil.getURCLocalHome().create();
            } catch (CreateException ce) {
                Debug.println("ModelManger: urcEjb cannot be created");
                throw new GeneralFailureException(ce.getMessage());
            } catch (javax.naming.NamingException ne) {
                Debug.println("ModelManger: urcEjb cannot be created");
                 throw new GeneralFailureException(ne.getMessage());
            }
        }
        return urcEjb;
    }
    
        public UserLocal getUserEJB() {
        if (userEjb == null) {
            try {
                userEjb = EJBUtil.getUserLocalHome().create();
            } catch (CreateException ce) {
                throw new GeneralFailureException(ce.getMessage());
            } catch (javax.naming.NamingException ne) {
                 throw new GeneralFailureException(ne.getMessage());
            }
        }
        return userEjb;
    }
/*    
    public ConceptLocal getConceptEJB()throws StarsAppException {
        if (conceptEjb == null) {
            if (urcw == null) {
                throw new
                GeneralFailureException("ModelManager: Can not get concept Conceptstr EJB");
            } else {
                conceptEjb = urcw.getConceptEJB();
            }
        }
        return conceptEjb;
    }
*/
 
   /*
    public ConceptstrLocal getConceptstrEJB()throws StarsAppException {
        if (conceptstrEjb == null) {
            if (urcw == null) {
                throw new
                GeneralFailureException("ModelManager: Can not get concept Conceptstr EJB");
            } else {
                conceptstrEjb = urcw.getConceptstrEJB();
            }
        }
        return conceptstrEjb;
    }
    */
/*
    public ConflictLocal getConflictEJB() throws StarsAppException {
        if (conflictEjb == null) {
            if (urcw == null) {
                throw new
                GeneralFailureException("ModelManager: Can not get conflict EJB");
            } else {
                conflictEjb = urcw.getConflictEJB();
            }
        }
        return conflictEjb;
    }
*/
    public ProfileMgrLocal getProfileMgrEJB() throws StarsAppException {
        if (proEjb == null) {
            if (urcw == null) {
                throw new
                GeneralFailureException("ModelManager: Can not get profilemgr EJB");
            } else {
                proEjb = urcw.getProfileMgrEJB();
            }
        }
        return proEjb;
    }
}