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/*******************************************************************************
* 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
* Sergey Prigogin (Google) - use parameterized types (bug 442021)
*******************************************************************************/
package org.eclipse.core.internal.boot;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.net.*;
import java.util.Hashtable;
import org.eclipse.core.internal.runtime.CommonMessages;
import org.eclipse.osgi.util.NLS;
import org.osgi.service.url.AbstractURLStreamHandlerService;
/**
* URL handler for the "platform" protocol
*/
public class PlatformURLHandler extends AbstractURLStreamHandlerService {
private static Hashtable<String, Constructor<?>> connectionType = new Hashtable<>();
// URL protocol designations
public static final String PROTOCOL = "platform"; //$NON-NLS-1$
public static final String FILE = "file"; //$NON-NLS-1$
public static final String JAR = "jar"; //$NON-NLS-1$
public static final String BUNDLE = "bundle"; //$NON-NLS-1$
public static final String JAR_SEPARATOR = "!/"; //$NON-NLS-1$
public static final String PROTOCOL_SEPARATOR = ":"; //$NON-NLS-1$
/*
* Constructor for the class.
*/
public PlatformURLHandler() {
super();
}
@Override
public URLConnection openConnection(URL url) throws IOException {
// Note: openConnection() method is made public (rather than protected)
// to enable request delegation from proxy handlers
String spec = url.getFile().trim();
if (spec.startsWith("/")) //$NON-NLS-1$
spec = spec.substring(1);
int ix = spec.indexOf("/"); //$NON-NLS-1$
if (ix == -1)
throw new MalformedURLException(NLS.bind(CommonMessages.url_invalidURL, url.toExternalForm()));
String type = spec.substring(0, ix);
Constructor<?> construct = connectionType.get(type);
if (construct == null)
throw new MalformedURLException(NLS.bind(CommonMessages.url_badVariant, type));
PlatformURLConnection connection = null;
try {
connection = (PlatformURLConnection) construct.newInstance(new Object[] {url});
} catch (Exception e) {
throw new IOException(NLS.bind(CommonMessages.url_createConnection, e.getMessage()));
}
connection.setResolvedURL(connection.resolve());
return connection;
}
public static void register(String type, Class<?> connectionClass) {
try {
Constructor<?> c = connectionClass.getConstructor(new Class[] {URL.class});
connectionType.put(type, c);
} catch (NoSuchMethodException e) {
//don't register connection classes that don't conform to the spec
}
}
public static void unregister(String type) {
connectionType.remove(type);
}
}
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