absolutecontainerlisttag.java

java 写的一个新闻发布系统

package org.jahia.taglibs.container;

import org.jahia.data.JahiaData;
import org.jahia.data.containers.JahiaContainerList;
import org.jahia.exceptions.JahiaException;
import org.jahia.utils.JahiaConsole;



/**
 * Class AbsoluteContainerListTag : extends class ContainerListTag
 *
 * An absolute container list is declared on a page and can be used on any page
 *
 * @author  Jerome Tamiotti
 */
public class AbsoluteContainerListTag extends ContainerListTag {

    private int pageId = -1;
    private int pageLevel = -1;
    private int windowSize = -1;
    private int windowOffset = -1;

    public void setPageId(String pageId) {
        try {
            this.pageId = Integer.parseInt(pageId);
        } catch (NumberFormatException nfe) {
            JahiaConsole.println("AbsoluteContainerListTag: setPageId", "The given page id is not a number");
        }
    }

    public void setPageLevel(String pageLevel) {
        try {
            this.pageLevel = Integer.parseInt(pageLevel);
        } catch (NumberFormatException nfe) {
            JahiaConsole.println("AbsoluteContainerListTag: setPageLevel", "The given page level is not a number");
        }
    }

    public void setWindowSize(String windowSize) {
        try {
            this.windowSize = Integer.parseInt(windowSize);
        } catch (NumberFormatException nfe) {
            this.windowSize = -1;
        }
    }

    /*
    public int getWindowSize() {
        return this.windowSize;
    }
    */

    public void setWindowOffset(String windowOffset) {
        try {
            this.windowOffset = Integer.parseInt(windowOffset);
        } catch (NumberFormatException nfe) {
            this.windowOffset = -1;
        }
    }

    /*
    public int getWindowOffset() {
        return this.windowOffset;
    }
    */

    protected void checkAttributes(JahiaData jData) throws JahiaException {
        if (this.pageId == -1) {
            // check for page level
            if (this.pageLevel != -1) {
                this.pageId = jData.gui().getLevelID(this.pageLevel);
                if (this.pageId == -1) {
                    JahiaConsole.println("AbsoluteContainerListTag.checkAttributes",
                                         "Couldn't find pageID for pageLevel=" + this.pageLevel);
                }
            }
        }
    }

    protected void checkDeclaration(JahiaData jData) throws JahiaException {
        if ( jData.page().getID()== this.pageId ) {
            jData.containers().declareContainer(super.getName(), super.getTitle(), super.getFields(), this.windowSize, this.windowOffset);
        }
    }


    // redefines only the method allowing to read the container list

    // reads the container list from a container set
    protected JahiaContainerList getContainerList( JahiaData jData, String listName ) throws JahiaException {
        return jData.containers().getAbsoluteContainerList( listName, this.pageId );
    }

}