jahiaobjecttool.java

java 写的一个新闻发布系统

//
//                                   ____.
//                       __/\ ______|    |__/\.     _______
//            __   .____|    |       \   |    +----+       \
//    _______|  /--|    |    |    -   \  _    |    :    -   \_________
//   \\______: :---|    :    :           |    :    |         \________>
//           |__\---\_____________:______:    :____|____:_____\
//                                      /_____|
//
//                 . . . i n   j a h i a   w e   t r u s t . . .
//
//
//  JahiaObjectUtils
//  MJ      12.03.2001
//
//

package org.jahia.utils;


import java.util.*;                                     // HashMap

import org.jahia.exceptions.JahiaException;
import org.jahia.registries.*;                      // ServicesRegistry
import org.jahia.data.fields.*;                     // JahiaField
import org.jahia.data.containers.*;                 // JahiaContainer, JahiaContainerList
import org.jahia.services.pages.*;                  // JahiaPage


/**
 * Utility class to return characteristic strings with an input of (int objectType, int objectID)
 * intended for use by the audit log management system
 *
 * @author MJ
 */


public class JahiaObjectTool
{

    private static JahiaObjectTool theObject           = null;

    private static final String    MSG_INTERNAL_ERROR  = new String ("Object Tool internal error");

    public static final int        FIELD_TYPE          = 1;
    public static final int        CONTAINER_TYPE      = 2;
    public static final int        CONTAINERLIST_TYPE  = 3;
    public static final int        PAGE_TYPE           = 4;
    public static final int        ACL_TYPE            = 5;
    public static final int        APPLICATION_TYPE    = 6;
    public static final int        SERVER_TYPE         = 7;
    public static final int        TEMPLATE_TYPE       = 8;

    /***
        * returns the single instance of the object
        *
        */
    public static synchronized JahiaObjectTool getInstance()
    {
        if (theObject == null) {
            theObject = new JahiaObjectTool();
        }
        return theObject;
    } // end getInstance



    /***
        * get the object name according to the object type and object ID (without engineMap)
        * @author   Mikha雔 Janson
        * @param    objectType
        * @param    engineMap
        * @return   the object name, as an <code>String</code>
        */
    public String getObjectName( int objectType, int objectID )
    throws JahiaException
    {
        ServicesRegistry sReg = ServicesRegistry.getInstance();
        
        switch(objectType) {
            case CONTAINERLIST_TYPE: return sReg.getJahiaContainersService().loadContainerListInfo(objectID).getDefinition().getName();
            case CONTAINER_TYPE:     return sReg.getJahiaContainersService().loadContainerInfo(objectID).getDefinition().getName();
            case PAGE_TYPE:          return sReg.getJahiaPageService().lookupPage(objectID).getTitle();
            case FIELD_TYPE:         return sReg.getJahiaFieldService().loadField(objectID).getDefinition().getName();
            case APPLICATION_TYPE:   return sReg.getJahiaApplicationsManagerService().getApplication(objectID).getName();
            case TEMPLATE_TYPE:   	 return sReg.getJahiaPageTemplateService().lookupPageTemplate(objectID).getName();
            case SERVER_TYPE:        return "Jahia Server";

            default:                 throw new JahiaException (MSG_INTERNAL_ERROR,
                                                               "Incompatible Object Type passed to JahiaObjectTool.getObjectName(objectType, objectID)",
                                                               JahiaException.SERVICE_ERROR,
                                                               JahiaException.CRITICAL);
        }
    } // end getObjectName( int objectType, int objectID )



    /***
        * get the object name according to the object type
        * @author   Mikha雔 Janson
        * @param    objectType
        * @param    engineMap
        * @return   the object name, as an <code>String</code>
        */
    public String getObjectName( int objectType, HashMap engineMap )
    throws JahiaException
    {
        switch(objectType) {
            case CONTAINERLIST_TYPE: return ((JahiaContainerList) engineMap.get( "theContainerList" )).getDefinition().getName();
            case CONTAINER_TYPE:     return ((JahiaContainer) engineMap.get( "theContainer" )).getDefinition().getName();
            case PAGE_TYPE:          return ((JahiaPage) engineMap.get( "thePage" )).getTitle();
            case FIELD_TYPE:         return ((JahiaField) engineMap.get( "theField" )).getDefinition().getName();
            case TEMPLATE_TYPE:      return ((JahiaPageDefinition) engineMap.get( "theTemplate" )).getName();


            default:                 throw new JahiaException (MSG_INTERNAL_ERROR,
                                                               "Incompatible Object Type passed to JahiaObjectTool.getObjectName(objectType, engineMap)",
                                                               JahiaException.SERVICE_ERROR,
                                                               JahiaException.CRITICAL);
        }
    } // end getObjectName (int objectType, HashMap engineMap)


    /***
        * get an object type name from the objectType
        * @author   Mikha雔 Janson
        * @param    objectType     the object type, as an <code>int</code>
        * @return   a <code>String</code> containing the name of the object type
        *
        */
    public String getObjectTypeName( int objectType )
    throws JahiaException
    {
        switch(objectType) {

            case CONTAINERLIST_TYPE: return "containerlist";
            case CONTAINER_TYPE:     return "container";
            case PAGE_TYPE:          return "page";
            case FIELD_TYPE:         return "field";
            case TEMPLATE_TYPE:      return "template";

            default:                 throw new JahiaException (MSG_INTERNAL_ERROR,
                                                               "Incompatible Object Type passed to JahiaObjectTool.getObjectName(objectType)",
                                                               JahiaException.SERVICE_ERROR,
                                                               JahiaException.CRITICAL);
        }
    }


    /***
        * get the object ID according to the object type
        * @author   Mikha雔 Janson
        * @param    objectType
        * @param    engineMap
        * @return   the object ID, as an <code>int</code>
        */
    public int getObjectID( int objectType, HashMap engineMap )
    throws JahiaException
    {
        switch(objectType) {

            case CONTAINERLIST_TYPE: return ((JahiaContainerList) engineMap.get( "theContainerList" )).getID();
            case CONTAINER_TYPE:     return ((JahiaContainer) engineMap.get( "theContainer" )).getID();
            case PAGE_TYPE:          return ((JahiaPage) engineMap.get( "thePage" )).getID();
            case FIELD_TYPE:         return ((JahiaField) engineMap.get( "theField" )).getID();
            case TEMPLATE_TYPE:      return ((JahiaPageDefinition) engineMap.get( "theTemplate" )).getID();

            default:                 throw new JahiaException (MSG_INTERNAL_ERROR,
                                                               "Incompatible Object Type passed to JahiaObjectTool",
                                                               JahiaException.SERVICE_ERROR,
                                                               JahiaException.CRITICAL);
        }
    }



} // end class JahiaObjectTool