| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.core.internal.boot; |
| |
| /** |
| * Platform URL support |
| * platform:/base/ maps to platform installation location |
| */ |
| |
| import java.io.IOException; |
| import java.net.URL; |
| |
| public class PlatformURLBaseConnection extends PlatformURLConnection { |
| |
| // platform/ protocol |
| public static final String PLATFORM = "base"; //$NON-NLS-1$ |
| public static final String PLATFORM_URL_STRING = PlatformURLHandler.PROTOCOL+PlatformURLHandler.PROTOCOL_SEPARATOR+"/"+PLATFORM+"/"; //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| private static URL installURL; |
| public PlatformURLBaseConnection(URL url) { |
| super(url); |
| } |
| protected boolean allowCaching() { |
| return true; |
| } |
| protected URL resolve() throws IOException { |
| String spec = url.getFile().trim(); |
| if (spec.startsWith("/")) //$NON-NLS-1$ |
| spec = spec.substring(1); |
| if (!spec.startsWith(PLATFORM+"/")) { //$NON-NLS-1$ |
| String message = Policy.bind("url.badVariant", url.toString()); //$NON-NLS-1$ |
| throw new IOException(message); |
| } |
| return spec.length()==PLATFORM.length()+1 ? installURL : new URL(installURL,spec.substring(PLATFORM.length()+1)); |
| } |
| public static void startup(URL url) { |
| |
| // register connection type for platform:/base/ handling |
| if (installURL!=null) return; |
| installURL = url; |
| PlatformURLHandler.register(PLATFORM, PlatformURLBaseConnection.class); |
| } |
| } |