| /******************************************************************************* |
| * 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.runtime; |
| |
| /** |
| * Platform URL support |
| * platform:/plugin/pluginId/ maps to pluginDescriptor.getInstallURLInternal() |
| */ |
| |
| import java.io.IOException; |
| import java.net.URL; |
| import org.eclipse.core.internal.boot.PlatformURLConnection; |
| import org.eclipse.core.internal.boot.PlatformURLHandler; |
| import org.osgi.framework.Bundle; |
| |
| public class PlatformURLPluginConnection extends PlatformURLConnection { |
| |
| private Bundle target = null; |
| private static boolean isRegistered = false; |
| public static final String PLUGIN = "plugin"; //$NON-NLS-1$ |
| |
| public PlatformURLPluginConnection(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(PLUGIN)) |
| throw new IOException(Policy.bind("url.badVariant", url.toString())); //$NON-NLS-1$ |
| int ix = spec.indexOf("/", PLUGIN.length() + 1); //$NON-NLS-1$ |
| String ref = ix == -1 ? spec.substring(PLUGIN.length() + 1) : spec.substring(PLUGIN.length() + 1, ix); |
| String id = getId(ref); |
| target = InternalPlatform.getDefault().getBundle(id); |
| if (target == null) |
| throw new IOException(Policy.bind("url.resolvePlugin", url.toString())); //$NON-NLS-1$ |
| URL result = target.getEntry("/"); //$NON-NLS-1$ |
| if (ix == -1 || (ix + 1) >= spec.length()) |
| return result; |
| else |
| return new URL(result, spec.substring(ix + 1)); |
| } |
| |
| public static void startup() { |
| // register connection type for platform:/plugin handling |
| if (isRegistered) |
| return; |
| PlatformURLHandler.register(PLUGIN, PlatformURLPluginConnection.class); |
| isRegistered = true; |
| } |
| |
| public URL[] getAuxillaryURLs() throws IOException { |
| if (target == null) { |
| String spec = url.getFile().trim(); |
| if (spec.startsWith("/")) //$NON-NLS-1$ |
| spec = spec.substring(1); |
| if (!spec.startsWith(PLUGIN)) |
| throw new IOException(Policy.bind("url.badVariant", url.toString())); //$NON-NLS-1$ |
| int ix = spec.indexOf("/", PLUGIN.length() + 1); //$NON-NLS-1$ |
| String ref = ix == -1 ? spec.substring(PLUGIN.length() + 1) : spec.substring(PLUGIN.length() + 1, ix); |
| String id = getId(ref); |
| target = InternalPlatform.getDefault().getBundle(id); |
| if (target == null) |
| throw new IOException(Policy.bind("url.resolvePlugin", url.toString())); //$NON-NLS-1$ |
| } |
| Bundle[] fragments = InternalPlatform.getDefault().getFragments(target); |
| int fragmentLength = (fragments == null) ? 0 : fragments.length; |
| if (fragmentLength == 0) |
| return null; |
| URL[] result = new URL[fragmentLength]; |
| for (int i = 0; i < fragmentLength; i++) |
| result[i] = fragments[i].getEntry("/"); //$NON-NLS-1$ |
| return result; |
| } |
| } |