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- /*
- * 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);
-
- /**
- * @param repository
- * the repository storing large objects
- * @param context
- * @param request
- * @param response
- * @param id
- * @throws FileNotFoundException
- * @throws 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);
- }
-
- /**
- * Writes all the received data to the output channel
- *
- * @throws IOException
- */
- @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;
- }
- }
- }
-
- /**
- * @throws IOException
- */
- @Override
- public void onAllDataRead() throws IOException {
- close();
- }
-
- /**
- * @throws 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();
- }
- }
-
- /**
- * @param e
- * the exception that caused the problem
- */
- @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);
- }
- }
- }
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