| /******************************************************************************* |
| * Copyright (c) 2004, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.core.internal.runtime; |
| |
| import java.io.*; |
| import java.net.URL; |
| import org.eclipse.core.internal.boot.PlatformURLConnection; |
| import org.eclipse.core.internal.boot.PlatformURLHandler; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.osgi.util.NLS; |
| import org.osgi.framework.Bundle; |
| |
| public class PlatformURLMetaConnection extends PlatformURLConnection { |
| private Bundle target = null; |
| private static boolean isRegistered = false; |
| public static final String META = "meta"; //$NON-NLS-1$ |
| |
| /* |
| * Constructor for the class. |
| */ |
| public PlatformURLMetaConnection(URL url) { |
| super(url); |
| } |
| |
| @Override |
| protected URL resolve() throws IOException { |
| String spec = url.getFile().trim(); |
| if (spec.startsWith("/")) //$NON-NLS-1$ |
| spec = spec.substring(1); |
| if (!spec.startsWith(META)) |
| throw new IOException(NLS.bind(CommonMessages.url_badVariant, url.toString())); |
| int ix = spec.indexOf('/', META.length() + 1); //$NON-NLS-1$ |
| String ref = ix == -1 ? spec.substring(META.length() + 1) : spec.substring(META.length() + 1, ix); |
| String id = getId(ref); |
| Activator activator = Activator.getDefault(); |
| if (activator == null) |
| throw new IOException(CommonMessages.activator_not_available); |
| target = activator.getBundle(id); |
| if (target == null) |
| throw new IOException(NLS.bind(CommonMessages.url_resolvePlugin, url.toString())); |
| IPath path = MetaDataKeeper.getMetaArea().getStateLocation(target); |
| if (ix != -1 || (ix + 1) <= spec.length()) |
| path = path.append(spec.substring(ix + 1)); |
| return path.toFile().toURL(); |
| } |
| |
| public static void startup() { |
| // register connection type for platform:/meta handling |
| if (isRegistered) |
| return; |
| PlatformURLHandler.register(META, PlatformURLMetaConnection.class); |
| isRegistered = true; |
| } |
| |
| @Override |
| public OutputStream getOutputStream() throws IOException { |
| //This is not optimal but connection is a private instance variable in super. |
| URL resolved = getResolvedURL(); |
| if (resolved != null) { |
| String fileString = resolved.getFile(); |
| if (fileString != null) { |
| File file = new File(fileString); |
| String parent = file.getParent(); |
| if (parent != null) |
| new File(parent).mkdirs(); |
| return new FileOutputStream(file); |
| } |
| } |
| return null; |
| } |
| } |