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/*******************************************************************************
* 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;
}
}
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