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