| /* |
| * Copyright (C) 2015, Matthias Sohn <matthias.sohn@sap.com> |
| * 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.lfs.server.fs; |
| |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.Channels; |
| import java.nio.channels.ReadableByteChannel; |
| import java.nio.channels.WritableByteChannel; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| import javax.servlet.AsyncContext; |
| import javax.servlet.ReadListener; |
| import javax.servlet.ServletInputStream; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.apache.http.HttpStatus; |
| import org.eclipse.jgit.lfs.errors.CorruptLongObjectException; |
| import org.eclipse.jgit.lfs.internal.AtomicObjectOutputStream; |
| import org.eclipse.jgit.lfs.lib.AnyLongObjectId; |
| import org.eclipse.jgit.lfs.lib.Constants; |
| |
| /** |
| * Handle asynchronous object upload. |
| * |
| * @since 4.6 |
| */ |
| public class ObjectUploadListener implements ReadListener { |
| |
| private static Logger LOG = Logger |
| .getLogger(ObjectUploadListener.class.getName()); |
| |
| private final AsyncContext context; |
| |
| private final HttpServletResponse response; |
| |
| private final ServletInputStream in; |
| |
| private final ReadableByteChannel inChannel; |
| |
| private final AtomicObjectOutputStream out; |
| |
| private WritableByteChannel channel; |
| |
| private final ByteBuffer buffer = ByteBuffer.allocateDirect(8192); |
| |
| /** |
| * Constructor for ObjectUploadListener. |
| * |
| * @param repository |
| * the repository storing large objects |
| * @param context |
| * a {@link javax.servlet.AsyncContext} object. |
| * @param request |
| * a {@link javax.servlet.http.HttpServletRequest} object. |
| * @param response |
| * a {@link javax.servlet.http.HttpServletResponse} object. |
| * @param id |
| * a {@link org.eclipse.jgit.lfs.lib.AnyLongObjectId} object. |
| * @throws java.io.FileNotFoundException |
| * @throws java.io.IOException |
| */ |
| public ObjectUploadListener(FileLfsRepository repository, |
| AsyncContext context, HttpServletRequest request, |
| HttpServletResponse response, AnyLongObjectId id) |
| throws FileNotFoundException, IOException { |
| this.context = context; |
| this.response = response; |
| this.in = request.getInputStream(); |
| this.inChannel = Channels.newChannel(in); |
| this.out = repository.getOutputStream(id); |
| this.channel = Channels.newChannel(out); |
| response.setContentType(Constants.CONTENT_TYPE_GIT_LFS_JSON); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * Writes all the received data to the output channel |
| */ |
| @Override |
| public void onDataAvailable() throws IOException { |
| while (in.isReady()) { |
| if (inChannel.read(buffer) > 0) { |
| buffer.flip(); |
| channel.write(buffer); |
| buffer.compact(); |
| } else { |
| buffer.flip(); |
| while (buffer.hasRemaining()) { |
| channel.write(buffer); |
| } |
| close(); |
| return; |
| } |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void onAllDataRead() throws IOException { |
| close(); |
| } |
| |
| /** |
| * Close resources held by this listener |
| * |
| * @throws java.io.IOException |
| */ |
| protected void close() throws IOException { |
| try { |
| inChannel.close(); |
| channel.close(); |
| // TODO check if status 200 is ok for PUT request, HTTP foresees 204 |
| // for successful PUT without response body |
| if (!response.isCommitted()) { |
| response.setStatus(HttpServletResponse.SC_OK); |
| } |
| } finally { |
| context.complete(); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void onError(Throwable e) { |
| try { |
| out.abort(); |
| inChannel.close(); |
| channel.close(); |
| int status; |
| if (e instanceof CorruptLongObjectException) { |
| status = HttpStatus.SC_BAD_REQUEST; |
| LOG.log(Level.WARNING, e.getMessage(), e); |
| } else { |
| status = HttpStatus.SC_INTERNAL_SERVER_ERROR; |
| LOG.log(Level.SEVERE, e.getMessage(), e); |
| } |
| FileLfsServlet.sendError(response, status, e.getMessage()); |
| } catch (IOException ex) { |
| LOG.log(Level.SEVERE, ex.getMessage(), ex); |
| } |
| } |
| } |