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/*
* Copyright (C) 2015, Sasa Zivkov <sasa.zivkov@sap.com> 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.lfs.server;
import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;
import static org.eclipse.jgit.lfs.lib.Constants.DOWNLOAD;
import static org.eclipse.jgit.lfs.lib.Constants.UPLOAD;
import static org.eclipse.jgit.lfs.lib.Constants.VERIFY;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.eclipse.jgit.lfs.lib.LongObjectId;
import org.eclipse.jgit.lfs.server.Response.Action;
import org.eclipse.jgit.lfs.server.Response.Body;
import org.eclipse.jgit.lfs.server.internal.LfsServerText;
abstract class TransferHandler {
static TransferHandler forOperation(String operation,
LargeFileRepository repository, List<LfsObject> objects) {
switch (operation) {
case UPLOAD:
return new Upload(repository, objects);
case DOWNLOAD:
return new Download(repository, objects);
case VERIFY:
default:
throw new UnsupportedOperationException(MessageFormat.format(
LfsServerText.get().unsupportedOperation, operation));
}
}
private static class Upload extends TransferHandler {
Upload(LargeFileRepository repository,
List<LfsObject> objects) {
super(repository, objects);
}
@Override
Body process() throws IOException {
Response.Body body = new Response.Body();
if (!objects.isEmpty()) {
body.objects = new ArrayList<>();
for (LfsObject o : objects) {
addObjectInfo(body, o);
}
}
return body;
}
private void addObjectInfo(Response.Body body, LfsObject o)
throws IOException {
Response.ObjectInfo info = new Response.ObjectInfo();
body.objects.add(info);
info.oid = o.oid;
info.size = o.size;
LongObjectId oid = LongObjectId.fromString(o.oid);
if (repository.getSize(oid) == -1) {
info.actions = new HashMap<>();
info.actions.put(UPLOAD,
repository.getUploadAction(oid, o.size));
Action verify = repository.getVerifyAction(oid);
if (verify != null) {
info.actions.put(VERIFY, verify);
}
}
}
}
private static class Download extends TransferHandler {
Download(LargeFileRepository repository,
List<LfsObject> objects) {
super(repository, objects);
}
@Override
Body process() throws IOException {
Response.Body body = new Response.Body();
if (!objects.isEmpty()) {
body.objects = new ArrayList<>();
for (LfsObject o : objects) {
addObjectInfo(body, o);
}
}
return body;
}
private void addObjectInfo(Response.Body body, LfsObject o)
throws IOException {
Response.ObjectInfo info = new Response.ObjectInfo();
body.objects.add(info);
info.oid = o.oid;
info.size = o.size;
LongObjectId oid = LongObjectId.fromString(o.oid);
if (repository.getSize(oid) >= 0) {
info.actions = new HashMap<>();
info.actions.put(DOWNLOAD,
repository.getDownloadAction(oid));
} else {
info.error = new Response.Error();
info.error.code = SC_NOT_FOUND;
info.error.message = MessageFormat.format(
LfsServerText.get().objectNotFound,
oid.getName());
}
}
}
final LargeFileRepository repository;
final List<LfsObject> objects;
TransferHandler(LargeFileRepository repository,
List<LfsObject> objects) {
this.repository = repository;
this.objects = objects;
}
abstract Response.Body process() throws IOException;
}
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