| /******************************************************************************* |
| * Copyright (c) 2000, 2015 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.core.internal.boot; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| import org.eclipse.core.internal.runtime.CommonMessages; |
| import org.eclipse.osgi.util.NLS; |
| |
| /** |
| * Platform URL support |
| * platform:/base/ maps to platform installation location |
| */ |
| 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; |
| |
| /* |
| * Constructor for the class. |
| */ |
| public PlatformURLBaseConnection(URL url) { |
| super(url); |
| } |
| |
| @Override |
| protected boolean allowCaching() { |
| return true; |
| } |
| |
| @Override |
| 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 = NLS.bind(CommonMessages.url_badVariant, url); |
| 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); |
| } |
| } |