appmodelmanager.java

《Java网络程序设计.rar》包括三个网络程序的源代码。

/*
 
 */
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.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.perspectivemd.perspective.ejb.PerspectiveLocal;

//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 application level JavaBean as view.
 * Application shared java beans are accessed here.
 */
public class AppModelManager extends ModelUpdateNotifier implements java.io.Serializable {

    private ServletContext context;
/*
    private ConceptstrLocal conceptstrEjb = null;
    private ConceptLocal conceptEjb = null;
    private ConflictLocal conflictEjb = null;
    private PerspectiveLocal perspectiveEjb = null;
  */  

    public AppModelManager() { }

    public void init(ServletContext context) {
        Debug.println("ini AppModelManager ...");
        //this.context = context;
        this.context = context;
        //getConflictWebImpl();
        //getConceptstrModel();
        //getConceptModel();
        //getProfileMgrModel();
        //getPerspectiveModel();
    }



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

    public ConceptWebImpl getConceptWebImpl() {
        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)
        context.getAttribute(WebKeys.ConflictModelKey);
        if (conflict == null) {
            conflict = new ConflictWebImpl();
            context.setAttribute(WebKeys.ConflictModelKey, conflict);
        }
        return conflict;
    }
    
    public ConceptstrWebImpl getConceptstrWebImpl(String conceptstrID) {
        String WebKeyconceptstrID ="ConceptStr" + conceptstrID;
        Debug.println("AppModelManager: getConceptstrWebImpl: " + WebKeyconceptstrID);
        ConceptstrWebImpl conceptstr = (ConceptstrWebImpl)
        context.getAttribute(WebKeyconceptstrID);
        if (conceptstr == null) {            
             try{
                    conceptstr = new ConceptstrWebImpl();
                    conceptstr.init(context);
                    conceptstr.setConceptstrID(conceptstrID); //set the ID to retrieve concept from EJB
                    conceptstr.performUpdate();
                 }
                catch (StarsAppException fde) {
                Debug.println("unable to initialize cstr: "+WebKeyconceptstrID);                    
                }
            context.setAttribute(WebKeyconceptstrID, conceptstr);
        }
        return conceptstr;
    }

/*    
    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;
    }
*/

}