|
What this is
Other links
The source code/* * Sun Public License Notice * * The contents of this file are subject to the Sun Public License * Version 1.0 (the "License"). You may not use this file except in * compliance with the License. A copy of the License is available at * http://www.sun.com/ * * The Original Code is NetBeans. The Initial Developer of the Original * Code is Sun Microsystems, Inc. Portions Copyright 1997-2001 Sun * Microsystems, Inc. All Rights Reserved. */ package org.netbeans.modules.webclient; import java.net.URL; import java.net.MalformedURLException; import java.util.Iterator; import org.openide.ErrorManager; import org.openide.filesystems.FileObject; import org.openide.filesystems.URLMapper; import org.openide.util.Lookup; /** Utility class for various useful URL-related tasks. * !!! COPIED from extbrowser. * * @author Petr Jiricka */ public class URLUtil { /** results with URLMapper instances*/ private static Lookup.Result result; static { result = Lookup.getDefault().lookup(new Lookup.Template (URLMapper.class)); } /** Creates a URL that is suitable for using in a different process on the * same node, similarly to URLMapper.EXTERNAL. May just return the original * URL if that's good enough. */ public static URL createExternalURL(URL url) { if (url == null) return null; // return if the protocol is fine if (isAcceptableProtocol(url.getProtocol().toLowerCase())) return url; // remove the anchor String anchor = url.getRef(); String urlString = url.toString (); int ind = urlString.indexOf('#'); if (ind >= 0) { urlString = urlString.substring(0, ind); } // map to an external URL using the anchor-less URL try { FileObject fos[] = URLMapper.findFileObjects(new URL(urlString)); if ((fos != null) && (fos.length > 0)) { URL newUrl = getURLOfAppropriateType(fos[0]); if (newUrl != null) { // re-add the anchor if exists urlString = newUrl.toString(); if (ind >=0) { urlString = urlString + "#" + anchor; // NOI18N } return new URL(urlString); } } } catch (MalformedURLException e) { ErrorManager.getDefault().notify(ErrorManager.INFORMATIONAL, e); } return url; } /** Returns a URL for the given file object that can be correctly interpreted * by usual web browsers (including Netscape 4.71, IE and Mozilla). * First attempts to get an EXTERNAL URL, if that is a suitable URL, it is used; * otherwise a NETWORK URL is used. */ private static URL getURLOfAppropriateType(FileObject fo) { // PENDING - there is still the problem that the HTTP server will be started // (because the HttpServerURLMapper.getURL(...) method starts it), // even when it is not needed URL retVal; URL suitable = null; Iterator instances = result.allInstances ().iterator(); while (instances.hasNext()) { URLMapper mapper = (URLMapper) instances.next(); retVal = mapper.getURL (fo, URLMapper.EXTERNAL); if ((retVal != null) && isAcceptableProtocol(retVal.getProtocol().toLowerCase())) { // return if this is a 'file' URL if ("file".equals(retVal.getProtocol().toLowerCase())) { // NOI18N return retVal; } suitable = retVal; } } // if we found a suitable URL, return it if (suitable != null) { return suitable; } return URLMapper.findURL(fo, URLMapper.NETWORK); } /** Returns true if the protocol is acceptable for usual web browsers. * Specifically, returns true for file, http and ftp protocols. */ private static boolean isAcceptableProtocol(String protocol) { if ("http".equals(protocol) // NOI18N || "ftp".equals(protocol) // NOI18N || "file".equals(protocol)) // NOI18N return true; return false; } } |
... this post is sponsored by my books ... | |
#1 New Release! |
FP Best Seller |
Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.
A percentage of advertising revenue from
pages under the /java/jwarehouse
URI on this website is
paid back to open source projects.