jahiapagefield.java

java 写的一个新闻发布系统

//  JahiaPageField
//  YG      17.07.2001

package org.jahia.data.fields;

import java.util.*;                     // Vector, Calendar

import org.jahia.utils.*;
import org.jahia.data.*;
import org.jahia.services.pages.*;
import org.jahia.params.*;          // ParamBean
import org.jahia.registries.*;      // Registries
import org.jahia.exceptions.JahiaException;
import org.jahia.registries.*;      // Registries
import org.jahia.content.PageXRefManager;

public class JahiaPageField extends JahiaField
{

        /***
        * constructor
        * YG    17.07.2001
        *
        */
    public JahiaPageField(  Integer         ID,
                            Integer         jahiaID,
                            Integer         pageID,
                            Integer         ctnid,
                            Integer         fieldDefID,
                            Integer         fieldType,
                            Integer         connectType,
                            String          fieldValue,
                            Integer         rank,
                            Integer         aclID )
    {
        super(ID, jahiaID, pageID, ctnid, fieldDefID, fieldType, connectType,
              fieldValue, rank, aclID);
    } // end constructor


    public void load(int loadFlag, ParamBean jParams)
    throws JahiaException
    {


        if ((loadFlag & LoadFlags.PAGE) != 0)
        {

            int pageID = 0;
            if (!this.getValue().equals("<NoPage>")) {
            try {
                pageID = Integer.parseInt( this.getValue() );
            } catch (NumberFormatException nfe) {
                pageID = 0;
            }
            if (pageID != 0) {

                JahiaPage thePage = null;
                try {
                    thePage = ServicesRegistry.getInstance().
                              getJahiaPageService().lookupPage (pageID, jParams);
                } catch ( JahiaException je ){
                    // an unexpected error occured with requested page
                    String msg = "An exception occured with requested pageid="
                                 + pageID + "\n" + je.getMessage();
                    thePage = null;
                }


                this.setObject (thePage);
                if (thePage != null) {


                    // now let's update the xref manager from this page field to
                    // the actual page (actually the call uses the reverse order
                    // for parameter call)
                    if ( PageXRefManager.getInstance() != null ){
	                    //JahiaConsole.println("PageXRefManager","PageXRefManager instance is not null ");
	                    if ( jParams != null ){
	                    	PageXRefManager.getInstance().setPageID(jParams.getSiteKey(),
	                                                            thePage.getID(),
		                                                            jParams.getPageID());
		                }
					} else {
	                    JahiaConsole.println("PageXRefManager","PageXRefManager instance is null ");
					}
                switch (thePage.getPageType ()) {
                case JahiaPage.TYPE_DIRECT :

                    // MJ 01.04.2001
                    if (jParams == null) {
                        //this.setObject( null );
                        //if (this.getValue().toUpperCase().indexOf("JAHIA_LINKONLY") == -1)
                        //{
                         //   this.setValue( "");
                        //}
                        break;
                    }

                    if (thePage.checkReadAccess (jParams.getUser())) {
                        // check if the page definition of this page is visible or not
                        // if not deactivate the page !

                        JahiaPageDefinition def = thePage.getPageTemplate ();

                        if (def != null) {
                            //if ((def != null) && (def.isVisible())) {
                            this.setValue (thePage.getUrl());
                        } else {
                            this.setObject( null );
                            if (this.getValue().toUpperCase().indexOf("JAHIA_LINKONLY") == -1)
                            {
                                this.setValue( "");
                            }
                        }
                    } else {
                        this.setObject( null );
                        if (this.getValue().toUpperCase().indexOf("JAHIA_LINKONLY") == -1)
                        {
                            this.setValue( "");
                        }
                    }

                    break;

                case JahiaPage.TYPE_LINK :
                    JahiaPage tempPage = ServicesRegistry.getInstance().
                        getJahiaPageService().lookupPage (thePage.
                        getPageLinkID(), jParams);

                    if ((tempPage != null) && (jParams != null) && (jParams.getUser() != null))
                    {
                        // no it's not, let's return null.
                        if (!tempPage.checkReadAccess (jParams.getUser()))
                        {
                            this.setObject (null);
                            if (this.getValue().toUpperCase().indexOf("JAHIA_LINKONLY") == -1)
                            {
                                this.setValue ("");
                            }
                        }
                    } else {
                        //this.setObject (null);
                        //if (this.getValue().toUpperCase().indexOf("JAHIA_LINKONLY") == -1)
                        //{
                        //    this.setValue ("");
                        //}
                    }

                    break;
                }

            } else {
                    if (this.getValue().toUpperCase().indexOf("JAHIA_LINKONLY") == -1)
                    {
                        this.setValue ("");
                    }
                }
            } else {
                if (this.getValue().toUpperCase().indexOf("JAHIA_LINKONLY") == -1)
                {
                    this.setValue ("");
                }
            }
        } else {
                if (this.getValue().toUpperCase().indexOf("JAHIA_LINKONLY") == -1)
                {
                    this.setValue ("");
                }
            }
        }
        //System.out.println("######## end loadField fieldValue: "+this.getValue()+"#########");

    }

    public void save(ParamBean jParams)
    throws JahiaException
    {
        String tmpVal = this.getValue();
        if (!tmpVal.equals("<empty>")) {
            int pageID = -1;
            try {
                pageID = Integer.parseInt( tmpVal );
            } catch (NumberFormatException nfe) {
                pageID = -1;
            }
            if (pageID != -1) {
                // checks to see if the page already exists
                JahiaPage thePage = (JahiaPage) this.getObject();
                if (thePage != null) {

                    thePage.commitChanges(true);

                    //ServicesRegistry.getInstance().
                    //        getJahiaPageService().savePageInfo( thePage );

                    this.setValue( Integer.toString(thePage.getID()) );
                    tmpVal = Integer.toString( thePage.getID() ); // Very useful !???
                } else {
                    this.setValue( "" );
                    tmpVal = "<No Page>"; // Very useful !???
                }
            }
        } else {
            tmpVal = "<No Page>"; // Very useful !???
        }
    }

    public void delete(ParamBean jParams)
    throws JahiaException
    {
        try {
            int pageID = Integer.parseInt( this.getValue() );
            JahiaPage thePage = ServicesRegistry.getInstance().
                getJahiaPageService().lookupPage (pageID, null);

            if (thePage != null) {
                ServicesRegistry.getInstance().getJahiaPageService().
                    deletePage (thePage, jParams);
            }

        } catch (NumberFormatException nfe) {
            // do nothin'
        }
    }

    /**
     * Returns an hashtable of indexable attributes , pairs [attribute name/value]. 
     * Returned pairs:
     * 					none
     *
     * @return Hashtable a map of indexable attributes , pairs [attribute name/value]
     */
    public Hashtable getIndexableAttributes(){
    	Hashtable hash = new Hashtable();
    	return hash;
    }

    public String getEngineName()
    {
        return "org.jahia.engines.shared.Page_Field";
    }

    public String getFieldContent4Ranking()
    {
        String fieldInfo = "";
        JahiaPage page = (JahiaPage)this.getObject();
        if (page != null)
        {
            fieldInfo = page.getTitle();
        }
        else
        {
           fieldInfo = this.getValue();
        }
        return fieldInfo;
    }

    public String getIconNameOff()
    {
        return "page";
    }

    public String getIconNameOn()
    {
        return "page_on";
    }

    public JahiaField cloneField(int newctnid, int newPageID, int clonedAclID, boolean childrenCloned)
    throws JahiaException
    {
        JahiaPage thePage = null;
        try {
        	thePage = (JahiaPage) this.getObject();
        } catch ( Throwable t ) {
        	t.printStackTrace();
        }
        
        if (thePage != null) {
            this.setValue( Integer.toString(thePage.getID()) );
        }
        //System.out.println(" value set: " + this.getValue());

        JahiaPage clonedPage = null;
        JahiaField clonedField = null;
        if ((thePage != null) && (thePage.getPageType() == JahiaPage.TYPE_URL | thePage.getPageType() == JahiaPage.TYPE_LINK))
        {
            clonedPage = ServicesRegistry.getInstance().getJahiaPageService().
                         createPage(thePage.getJahiaID(), newPageID,
                                    thePage.getPageType(), thePage.getTitle(),
                                    thePage.getPageTemplateID(), thePage.getRemoteURL(),
                                    thePage.getPageLinkID(), thePage.getCreator(),
                                    clonedAclID, null);

            clonedField = ServicesRegistry.getInstance().getJahiaFieldService().
                                 createJahiaField(0, this.getJahiaID(),
                                 newPageID, newctnid,
                                 this.getFieldDefID(), this.getType(),
                                 this.getConnectType(),
                                 (new Integer(clonedPage.getID())).toString(), this.getRank(),
                                 clonedAclID );

            clonedField.setObject( clonedPage );

        }
        else
        {
            if (!childrenCloned) {
                this.setValue("");
            }
            clonedField = ServicesRegistry.getInstance().getJahiaFieldService().
                                 createJahiaField(0, this.getJahiaID(),
                                 newPageID, newctnid,
                                 this.getFieldDefID(), this.getType(),
                                 this.getConnectType(),
                                 this.getValue(), this.getRank(),
                                 clonedAclID );

            clonedField.setObject( this.getObject() );
        }

        //toDebug("cloneField(): value = "+this.getValue());
        if (clonedField == null)
        {
            throw new JahiaException ("Could not clone field.",
                "Could not instanciate a new JahiaField object.",
                JahiaException.PAGE_ERROR, JahiaException.CRITICAL);
        }

        clonedField.setRawValue(this.getRawValue());
        clonedField.setProperties( (Hashtable)(this.getProperties()).clone() );

        return clonedField;
    }

    public Object clone()
    {
        Object objItem = this.getObject();
        JahiaPageField pf = new JahiaPageField (new Integer(ID), new Integer(jahiaID),
                                        new Integer(pageID),
                                        new Integer(ctnid),
                                        new Integer(fieldDefID),
                                        new Integer(fieldType),
                                        new Integer(connectType),
                                        fieldValue, new Integer(rank),
                                        new Integer(aclID) );
        pf.setObject(objItem);
        return pf;
    }


}