/* ====================================================================== The Bodington System Software License, Version 1.0 Copyright (c) 2001 The University of Leeds. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The end-user documentation included with the redistribution, if any, must include the following acknowledgement: "This product includes software developed by the University of Leeds (http://www.bodington.org/)." Alternately, this acknowledgement may appear in the software itself, if and wherever such third-party acknowledgements normally appear. 4. The names "Bodington", "Nathan Bodington", "Bodington System", "Bodington Open Source Project", and "The University of Leeds" must not be used to endorse or promote products derived from this software without prior written permission. For written permission, please contact d.gardner@leeds.ac.uk. 5. The name "Bodington" may not appear in the name of products derived from this software without prior written permission of the University of Leeds. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, TITLE, THE IMPLIED WARRANTIES OF QUALITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OF LEEDS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ========================================================= This software was originally created by the University of Leeds and may contain voluntary contributions from others. For more information on the Bodington Open Source Project, please see http://bodington.org/ ====================================================================== */ package org.bodington.server.resources; import java.util.Enumeration; import org.bodington.database.PrimaryKey; import org.bodington.server.BuildingServerException; import org.bodington.server.BuildingServer; import org.bodington.util.BodingtonURL; /** *

Bodington tool for linking to external websites and internal Bodington resources. * In the latter case the resource_id is stored and converted back to a url so that the * link can be maintained when the resource is moved. If the resource is deleted * (i.e. put in the recycling building) a warning is given. Values are stored in quick_links table.

* @author A Corfield; WebLearn 02/12/2003 * @version 1.0 */ public class QuickLink extends org.bodington.server.resources.Resource { private PrimaryKey quick_link_id, resource_id_link; private String url; private byte link_flags; public Class sessionClass() { // This method is derived from class org.bodington.server.resources.Resource // to do: code goes here return org.bodington.server.resources.QuickLinkSessionImpl.class; } public int getResourceType() { // Resource.RESOURCE_LINK = 11; added to Resource class return RESOURCE_LINK; } public static QuickLink findQuickLink(PrimaryKey key) throws BuildingServerException { return (QuickLink) findPersistentObject(key, "org.bodington.server.resources.QuickLink"); } public static Enumeration findQuickLinks(String where) throws BuildingServerException { return findPersistentObjects(where, "org.bodington.server.resources.QuickLink"); } public static Enumeration findQuickLinks(String where, String order) throws BuildingServerException { return findPersistentObjects(where, order, "org.bodington.server.resources.QuickLink"); } public PrimaryKey getPrimaryKey() { return getQuickLinkId(); } public void setPrimaryKey(PrimaryKey key) { setQuickLinkId(key); } public PrimaryKey getQuickLinkId() { return quick_link_id; } public void setQuickLinkId(PrimaryKey key) { quick_link_id = key; setResourceId(key); setUnsaved(); } public boolean setLink(String url) throws BuildingServerException { PrimaryKey id; Resource res; UploadedFile ulf; BodingtonURL bodUrl = new BodingtonURL(); if ( (res = bodUrl.getResource(url)) != null) { setResourceIdLink(res.getResourceId()); setUrl(null); return true; } if ( (ulf = bodUrl.getUploadedFile(url)) != null) { setResourceIdLink(ulf.getPrimaryKey()); setUrl(null); return true; } setUrl(url); setResourceIdLink(null); return false; } public String getLink(boolean check) { Resource res; UploadedFile ulf; String description, link = null; String msg = " (The resource this links to may have been deleted)"; int i; BodingtonURL bodUrl = new BodingtonURL(); if (resource_id_link == null) return url; // check == true; returns null if resource has been deleted link = bodUrl.getResourceUrl(resource_id_link, check); if (link == null) // check == true; returns null if UploadedFile has been deleted link = bodUrl.getUploadedFileUrl(resource_id_link, check); try { description = getDescription(); if (link == null) { i = description.indexOf(msg); if (i < 0) setDescription(getDescription() + msg); return ""; } i = description.indexOf(msg); if (i > -1) { description = description.substring(0, i); setDescription(description); } return link; } catch (BuildingServerException ex) { return ""; } } public boolean isBodURL() { if (resource_id_link != null) return true; return false; } public String getUrl() { return url; } public void setUrl(String s) { if (s == null && url == null) return; if (s != null && url != null && s.equals(url)) return; url = s; setUnsaved(); } public PrimaryKey getResourceIdLink() { return resource_id_link; } public void setResourceIdLink(PrimaryKey resId) { if (resId == null && resource_id_link == null) return; if (resId != null && resource_id_link != null && resId.equals(resource_id_link)) return; resource_id_link = resId; setUnsaved(); } public void setNewWindow(boolean newWindow) { if (newWindow) setLinkFlags( (byte)1); else setLinkFlags( (byte)0); } public boolean isNewWindow() { if (getLinkFlags() == (byte)1) return true; return false; } public byte getLinkFlags() { return link_flags; } public void setLinkFlags(byte f) { if (f == link_flags) return; link_flags = f; setUnsaved(); } }