bundles/org.eclipse.osgi/defaultAdaptor/src/org/eclipse/osgi/framework/internal/protocol/reference/Handler.java

/*******************************************************************************
 * Copyright (c) 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.osgi.framework.internal.protocol.reference;

import java.io.IOException;
import java.net.*;

/**
 * URLStreamHandler for ReferenceClassLoader resources.
 */

public class Handler extends URLStreamHandler {
	/**
	 * Constructor for a BundleClassLoader resource URLStreamHandler.
	 *
	 * @param entry BundleEntry this handler represents.
	 */
	public Handler() {
	}

	/**
	 * Establishes a connection to the resource specified by <code>URL</code>.
	 * Since different protocols may have unique ways of connecting, it must be
	 * overridden by the subclass.
	 *
	 * @return java.net.URLConnection
	 * @param url java.net.URL
	 *
	 * @exception	IOException 	thrown if an IO error occurs during connection establishment
	 */
	protected URLConnection openConnection(URL url) throws IOException {
		return new ReferenceURLConnection(url);
	}

	/** 
	 * Parse reference URL. 
	 */
	protected void parseURL(URL url, String str, int start, int end) {
		if (end < start) {
			return;
		}
		String reference = (start < end) ? str.substring(start, end) : url.getPath();

		setURL(url, url.getProtocol(), null, -1, null, null, reference, null, null);
	}

}