| /******************************************************************************* |
| * Copyright (c) 2000, 2007 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 |
| *******************************************************************************/ |
| |
| package org.eclipse.update.internal.core.connection; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URLConnection; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.update.internal.core.UpdateCore; |
| |
| /** |
| * @author btripkov |
| * |
| */ |
| public abstract class AbstractResponse implements IResponse { |
| |
| private static final long POLLING_INTERVAL = 200; |
| protected URLConnection connection; |
| |
| protected InputStream openStreamWithCancel(URLConnection urlConnection, IProgressMonitor monitor) throws IOException, CoreException, TooManyOpenConnectionsException { |
| |
| ConnectionThreadManager.StreamRunnable runnable = |
| new ConnectionThreadManager.StreamRunnable(urlConnection); |
| Thread t = ConnectionThreadManagerFactory.getConnectionManager().getConnectionThread( |
| runnable); |
| t.start(); |
| InputStream is = null; |
| try { |
| for (;;) { |
| if (monitor.isCanceled()) { |
| runnable.disconnect(); |
| connection = null; |
| break; |
| } |
| if (runnable.getInputStream() != null || !t.isAlive()) { |
| is = runnable.getInputStream(); |
| break; |
| } |
| if (runnable.getIOException() != null) |
| throw runnable.getIOException(); |
| if (runnable.getException() != null) |
| throw new CoreException(new Status(IStatus.ERROR, |
| UpdateCore.getPlugin().getBundle().getSymbolicName(), |
| IStatus.OK, |
| runnable.getException().getMessage(), |
| runnable.getException())); |
| t.join(POLLING_INTERVAL); |
| } |
| } catch (InterruptedException e) { |
| } |
| return is; |
| } |
| |
| |
| |
| } |