portletspersistancemanager.java

java 写的一个新闻发布系统

            if (jData == null) {
                jData = new JahiaData(jParams); /** @todo find a better lighter way ! */
            }
            PortletsJahiaContentSerializer jPortletSerializer =
                new PortletsJahiaContentSerializer(jData, portletGroupName);
            jPortletSerializer.storePortlet(thePortlet, theUserName);
        }

    } // end setPortlet


    /**
     * Delete a Portlet from the storage area
     *
     */
    public void delPortlet(ParamBean jParams,
                           JahiaData jData,
                           JahiaContainer container,
                           int theJahiaEventPageID, String theJahiaEventUserName,
                           String uRLtoTemplatesDir) throws JahiaException {
        if (personalizationActivated) {
            String theFile = theJahiaEventUserName + ".xml";
            String theDefaultFile = theDefaultUser + ".xml";
            PortletsXMLSerializer XMLFile = new PortletsXMLSerializer(uRLtoTemplatesDir,
                                                                      theFile,
                                                                      theDefaultFile,
                                                                      theJahiaEventPageID);
            XMLFile.deletePortlet(container.getID());
        } else {
            if (jData == null) {
                jData = new JahiaData(jParams); /** @todo find a better lighter way ! */
            }
            JahiaContainerDefinition containerDef = container.getDefinition();
            String portletGroupName = containerDef.getName();
            PortletsJahiaContentSerializer jPortletSerializer =
                new PortletsJahiaContentSerializer(jData, portletGroupName);
            jPortletSerializer.removePortlet(new PortletBean(container.getID()),
                                             theJahiaEventUserName);
        }
    } // end delPortlet


    /**
     * Add new portlet group (add new page)
     *
     * @author J閞鬽e B閐at
     *
     */
    public void addPortletGroup(ParamBean jParams,
                                int theJahiaEventObjectID,
                                String theJahiaEventUserName,
                                String uRLtoTemplatesDir) throws JahiaException {
        if (personalizationActivated) {
            String theFile = theJahiaEventUserName + ".xml";
            String theDefaultFile = theDefaultUser + ".xml";
            PortletsXMLSerializer XMLFile = new PortletsXMLSerializer(uRLtoTemplatesDir,
                                                                      theFile,
                                                                      theDefaultFile,
                                                                      theJahiaEventObjectID);
            XMLFile.addPortletGroup(theJahiaEventObjectID);
        }
    } // end addPortletGroup


    /**
     * Retrieves a column count for the specified page
     *
     * @author J閞鬽e B閐at
     *
     */
    /*
    public int getPortletsColumnCount(int thePageID, String theUserName,
                                      String uRLtoTemplatesDir) throws JahiaException {
        String theFile = theUserName + ".xml";
        String theDefaultFile = theDefaultUser + ".xml";
        PortletsXMLSerializer XMLFile = new PortletsXMLSerializer(uRLtoTemplatesDir,
                                                                  theFile,
                                                                  theDefaultFile,
                                                                  thePageID);
        theColumnCount = XMLFile.getColumnCount();
        return theColumnCount;
    } // end getPortletsColumnCount
    */
    /**
     * Copy the Portlet Group from the specified user XML file to the other users files
     *
     * @author J閞鬽e B閐at
     *
     */
     /*
    public void copyPortletGroup(int thePageID, String theUserName,
                                 String uRLtoTemplatesDir) {
        try {
            String theFile = theUserName + ".xml";
            String theDefaultFile = theDefaultUser + ".xml";
            PortletsXMLSerializer XMLFile = new PortletsXMLSerializer(uRLtoTemplatesDir, theFile, theDefaultFile, thePageID);

            File   portletsAPIPathDir  = new File( uRLtoTemplatesDir + File.separator + "portlets_api" + File.separator );
            File[] portletsAPIFileList = portletsAPIPathDir.listFiles();

            Vector sourceIDList = XMLFile.copyXMLPortletGroup(uRLtoTemplatesDir + File.separator + "portlets_api" + File.separator + theDefaultFile);
            for(int i=0; i<portletsAPIFileList.length; i++) {
                if (!portletsAPIFileList[i].getAbsolutePath().equals(uRLtoTemplatesDir + File.separator + "portlets_api" + File.separator + theFile) && !portletsAPIFileList[i].getAbsolutePath().equals(uRLtoTemplatesDir + File.separator + "portlets_api" + File.separator + theDefaultFile)) {
                    XMLFile.copyXMLPortletGroup(portletsAPIFileList[i].getAbsolutePath());
                }
            }
            unassignRightsToPortlets (sourceIDList);

        } catch (JahiaException e) {
            JahiaConsole.println( "PortletsBean -> copyPortletGroup", e.toString() );
        }
    } // end copyPortletGroup
*/

    /**
     * Load a Skin from the DataBase
     *
     * @author J閞鬽e B閐at
     *
     */
    public SkinBean loadSkin(String theType, int theID) {
        try {
            PortletWidgetsDBSerializer DB = PortletWidgetsDBSerializer.getInstance();
            if (theType.equals("portlet")) {
                theSkin = DB.load_portlet_skin(theID);
            } else if (theType.equals("desktop")) {
                theSkin = DB.load_desktop_skin(theID);
            }
            if (theSkin == null) {
                theSkin = new SkinBean(1,"","");
            }
        } catch (JahiaException e) {
            theSkin = new SkinBean(1,"","");
            JahiaConsole.println( "PortletsPersistanceManager.loadSkin", e.toString() );
        }
        return theSkin;
    } // end loadSkin



    //-------------------------------------------------------------------------
    private void unassignRightsToPortlets (ParamBean jParams, Vector containerIDs) {

        // get the administrator group name.
        String adminGroupName =
                JahiaGroupManagerService.ADMINISTRATORS_GROUPNAME;

        // get the administrator group object.
        JahiaGroup adminGroup = ServicesRegistry.getInstance().
                getJahiaGroupManagerService ().
                lookupGroup (JahiaGroupManagerService.ADMINISTRATORS_GROUPNAME);

        // get the administrator group object.
        JahiaGroup usersGroup = ServicesRegistry.getInstance().
                getJahiaGroupManagerService ().
                lookupGroup (JahiaGroupManagerService.USERS_GROUPNAME);

        // get the administrator group object.
        JahiaGroup guestGroup = ServicesRegistry.getInstance().
                getJahiaGroupManagerService ().
                lookupGroup (JahiaGroupManagerService.GUEST_GROUPNAME);


        // if the administrators group is not available .. just leave.
        // ok ok .. it's a hack, but I'll fix this later.   (Fulco)
        if (adminGroup == null) {
            return;
        }


        // process all the fields to reset the rights.
        for (int index = 0; index < containerIDs.size(); index++) {
            try {
                // get the field ID
                int containerID = ((Integer)containerIDs.get (index)).intValue();

                // Get the container reference holding the field.
                JahiaContainer container = ServicesRegistry.getInstance().
                        getJahiaContainersService().loadContainerInfo (containerID);

                if (container != null) {
                    // Get the ACL of the container

                    try {
                        JahiaBaseACL acl = new JahiaBaseACL (container.getAclID());
                        if (acl != null) {

                            // remove all the user who are not an
                            // administrator for administrator users, keep
                            // the existing entry.

                            // get all the user entries.
                            Vector usernames = acl.getUsernameList (null);
                            if (usernames.size() > 0) {
                                for (int i=0; i<usernames.size(); i++) {
                                    String username = (String)usernames.get(i);
                                    JahiaUser user = ServicesRegistry.
                                            getInstance().
                                            getJahiaUserManagerService().
                                            lookupUser (username);
                                    if ((user != null) &&
                                        (!user.isMemberOfGroup (jParams.getSiteID(), adminGroupName)))
                                    {
                                        acl.removeUserEntry (user);
                                    }
                                }
                            }

                            // disable the access to the users and guest group
                            JahiaACLEntry entry = new JahiaACLEntry (0, 0);
                            entry.setPermission (JahiaBaseACL.READ_RIGHTS, JahiaACLEntry.ACL_YES);

                            acl.setGroupEntry (usersGroup, entry);
                            acl.setGroupEntry (guestGroup, entry);

                            // set the new administration group rights
                            JahiaACLEntry adminEntry = new JahiaACLEntry ();
                            for (int i=0; i<acl.size(); i++) {
                                adminEntry.setPermission (i, JahiaACLEntry.ACL_YES);
                            }

                            acl.setGroupEntry (adminGroup, adminEntry);
                        }
                    }
                    catch (Throwable t) {
                        // the ACL was not found .. go to the next field.
                    }
                }

            }
            catch (JahiaException ex) {
                // go to the next field.
            }
        }
    }

    /**
     * This method allows us to do a merge of two portlet lists and return the
     * result of the merge.
     * This isn't simply a concatenation of the elements of the first list with
     * the ones from the second, instead it check the element of the first list
     * if they allow parameter "inheritance" from the second. In effect, this
     * is the stuff that's going on :
     *  iteration through the first list
     *      for each element of masterList do
     *          check list two for same element
     *          if present in both list then
     *              if element of list one is blocked
     *                  do nothing with element of list two (= reject it)
     *              else
     *                  merge the parameters, using the list two parameters
     *                  as predominant and store the portlet in the result
     *                  list
     *              end if
     *          else
     *              insert the element in the result list
     *          end if
     *      end for
     */
    private Enumeration mergePortletLists( Enumeration masterList,
                                           Enumeration slaveList )
    throws JahiaException {

        JahiaConsole.println("PortletsPersistanceManager.mergePortletLists", "Merging portlet lists....");

        Hashtable resultList = new Hashtable();
        if (masterList == null) {
            return slaveList;
        }
        if (slaveList == null) {
            return masterList;
        }

        // first we copy the master list into the hashtable
        while (masterList.hasMoreElements()) {
            Object curElement = masterList.nextElement();
            if (!(curElement instanceof PortletBean)) {
                throw new JahiaException("PortletManager.mergePortletLists",
                                         "Master portlet list contains invalid objects !",
                                         JahiaException.ERROR, JahiaException.ENGINE_ERROR);
            }
            PortletBean pb = (PortletBean) curElement;
            resultList.put(new Integer(pb.getPortletSourceID()), pb);
        }

        // now let's merge, resolving conflicts as they arise
        while (slaveList.hasMoreElements()) {
            Object curElement = slaveList.nextElement();
            if (!(curElement instanceof PortletBean)) {
                throw new JahiaException("PortletManager.mergePortletLists",
                                         "Slave portlet list contains invalid objects !",
                                         JahiaException.ERROR, JahiaException.ENGINE_ERROR);
            }
            PortletBean pb = (PortletBean) curElement;
            if (resultList.containsKey(new Integer(pb.getPortletSourceID()))) {
                // found the portlet from the master list, let's resolve the
                // conflict.
                PortletBean masterPB = (PortletBean) resultList.get(new Integer(pb.getPortletSourceID()));
                /** @todo for the moment we just ignore the slave data, we will
                 *  work on implementing this in the next version of the layout
                 *  system
                 */
            } else {
                // the portlet isn't already in the list, let's simply add it
                resultList.put(new Integer(pb.getPortletSourceID()), pb);
            }
        }
        return resultList.elements();
    }

}