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/*
* Copyright (C) 2015, Google Inc. and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.transport;
import java.io.IOException;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import org.eclipse.jgit.errors.TransportException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
import org.eclipse.jgit.transport.resolver.UploadPackFactory;
class InternalFetchConnection<C> extends BasePackFetchConnection {
private Thread worker;
/**
* Constructor for InternalFetchConnection.
*
* @param transport
* a {@link org.eclipse.jgit.transport.PackTransport}
* @param uploadPackFactory
* a
* {@link org.eclipse.jgit.transport.resolver.UploadPackFactory}
* @param req
* request
* @param remote
* the remote {@link org.eclipse.jgit.lib.Repository}
* @throws org.eclipse.jgit.errors.TransportException
* if any.
*/
public InternalFetchConnection(PackTransport transport,
final UploadPackFactory<C> uploadPackFactory,
final C req, final Repository remote) throws TransportException {
super(transport);
final PipedInputStream in_r;
final PipedOutputStream in_w;
final PipedInputStream out_r;
final PipedOutputStream out_w;
try {
in_r = new PipedInputStream();
in_w = new PipedOutputStream(in_r);
out_r = new PipedInputStream() {
// The client (BasePackFetchConnection) can write
// a huge burst before it reads again. We need to
// force the buffer to be big enough, otherwise it
// will deadlock both threads.
{
buffer = new byte[MIN_CLIENT_BUFFER];
}
};
out_w = new PipedOutputStream(out_r);
} catch (IOException err) {
remote.close();
throw new TransportException(uri, JGitText.get().cannotConnectPipes, err);
}
worker = new Thread("JGit-Upload-Pack") { //$NON-NLS-1$
@Override
public void run() {
try {
final UploadPack rp = uploadPackFactory.create(req, remote);
rp.upload(out_r, in_w, null);
} catch (ServiceNotEnabledException
| ServiceNotAuthorizedException e) {
// Ignored. Client cannot use this repository.
} catch (IOException | RuntimeException err) {
// Client side of the pipes should report the problem.
err.printStackTrace();
} finally {
try {
out_r.close();
} catch (IOException e2) {
// Ignore close failure, we probably crashed above.
}
try {
in_w.close();
} catch (IOException e2) {
// Ignore close failure, we probably crashed above.
}
remote.close();
}
}
};
worker.start();
init(in_r, out_w);
readAdvertisedRefs();
}
/** {@inheritDoc} */
@Override
public void close() {
super.close();
try {
if (worker != null) {
worker.join();
}
} catch (InterruptedException ie) {
// Stop waiting and return anyway.
} finally {
worker = null;
}
}
}
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