org.eclipse.jgit.transport.TransportBundleStream Maven / Gradle / Ivy
/*
* Copyright (C) 2009, Constantine Plotnikov
* Copyright (C) 2008, Google Inc.
* Copyright (C) 2008, Marek Zawirski
* Copyright (C) 2008, Shawn O. Pearce
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.eclipse.jgit.transport;
import java.io.IOException;
import java.io.InputStream;
import org.eclipse.jgit.errors.NotSupportedException;
import org.eclipse.jgit.errors.TransportException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Repository;
/**
* Single shot fetch from a streamed Git bundle.
*
* The bundle is read from an unbuffered input stream, which limits the
* transport to opening at most one FetchConnection before needing to recreate
* the transport instance.
*/
public class TransportBundleStream extends Transport implements TransportBundle {
private InputStream src;
/**
* Create a new transport to fetch objects from a streamed bundle.
*
* The stream can be unbuffered (buffering is automatically provided
* internally to smooth out short reads) and unpositionable (the stream is
* read from only once, sequentially).
*
* When the FetchConnection or the this instance is closed the supplied
* input stream is also automatically closed. This frees callers from
* needing to keep track of the supplied stream.
*
* @param db
* repository the fetched objects will be loaded into.
* @param uri
* symbolic name of the source of the stream. The URI can
* reference a non-existent resource. It is used only for
* exception reporting.
* @param in
* the stream to read the bundle from.
*/
public TransportBundleStream(final Repository db, final URIish uri,
final InputStream in) {
super(db, uri);
src = in;
}
@Override
public FetchConnection openFetch() throws TransportException {
if (src == null)
throw new TransportException(uri, JGitText.get().onlyOneFetchSupported);
try {
return new BundleFetchConnection(this, src);
} finally {
src = null;
}
}
@Override
public PushConnection openPush() throws NotSupportedException {
throw new NotSupportedException(
JGitText.get().pushIsNotSupportedForBundleTransport);
}
@Override
public void close() {
if (src != null) {
try {
src.close();
} catch (IOException err) {
// Ignore a close error.
} finally {
src = null;
}
}
}
}