121 lines
5.1 KiB
C++
121 lines
5.1 KiB
C++
/*
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* DirectorySubspace.cpp
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "DirectorySubspace.h"
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namespace FDB {
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DirectorySubspace::DirectorySubspace(Path const& path,
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StringRef const& prefix,
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Reference<DirectoryLayer> directoryLayer,
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Standalone<StringRef> const& layer)
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: Subspace(prefix), directoryLayer(directoryLayer), path(path), layer(layer) {}
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Future<Reference<DirectorySubspace>> DirectorySubspace::create(Reference<Transaction> const& tr,
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Path const& path,
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Standalone<StringRef> const& layer,
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Optional<Standalone<StringRef>> const& prefix) {
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return directoryLayer->create(tr, getPartitionSubpath(path), layer, prefix);
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}
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Future<Reference<DirectorySubspace>> DirectorySubspace::open(Reference<Transaction> const& tr,
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Path const& path,
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Standalone<StringRef> const& layer) {
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return directoryLayer->open(tr, getPartitionSubpath(path), layer);
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}
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Future<Reference<DirectorySubspace>> DirectorySubspace::createOrOpen(Reference<Transaction> const& tr,
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Path const& path,
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Standalone<StringRef> const& layer) {
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return directoryLayer->createOrOpen(tr, getPartitionSubpath(path), layer);
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}
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Future<bool> DirectorySubspace::exists(Reference<Transaction> const& tr, Path const& path) {
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Reference<DirectoryLayer> directoryLayer = getDirectoryLayerForPath(path);
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return directoryLayer->exists(tr, getPartitionSubpath(path, directoryLayer));
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}
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Future<Standalone<VectorRef<StringRef>>> DirectorySubspace::list(Reference<Transaction> const& tr, Path const& path) {
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return directoryLayer->list(tr, getPartitionSubpath(path));
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}
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Future<Reference<DirectorySubspace>> DirectorySubspace::move(Reference<Transaction> const& tr,
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Path const& oldPath,
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Path const& newPath) {
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return directoryLayer->move(tr, getPartitionSubpath(oldPath), getPartitionSubpath(newPath));
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}
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Future<Reference<DirectorySubspace>> DirectorySubspace::moveTo(Reference<Transaction> const& tr,
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Path const& newAbsolutePath) {
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Reference<DirectoryLayer> directoryLayer = getDirectoryLayerForPath(Path());
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Path directoryLayerPath = directoryLayer->getPath();
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if (directoryLayerPath.size() > newAbsolutePath.size()) {
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return cannot_move_directory_between_partitions();
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}
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for (int i = 0; i < directoryLayerPath.size(); ++i) {
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if (directoryLayerPath[i] != newAbsolutePath[i]) {
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return cannot_move_directory_between_partitions();
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}
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}
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Path newRelativePath(newAbsolutePath.begin() + directoryLayerPath.size(), newAbsolutePath.end());
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return directoryLayer->move(tr, getPartitionSubpath(Path(), directoryLayer), newRelativePath);
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}
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Future<Void> DirectorySubspace::remove(Reference<Transaction> const& tr, Path const& path) {
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Reference<DirectoryLayer> directoryLayer = getDirectoryLayerForPath(path);
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return directoryLayer->remove(tr, getPartitionSubpath(path, directoryLayer));
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}
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Future<bool> DirectorySubspace::removeIfExists(Reference<Transaction> const& tr, Path const& path) {
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Reference<DirectoryLayer> directoryLayer = getDirectoryLayerForPath(path);
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return directoryLayer->removeIfExists(tr, getPartitionSubpath(path, directoryLayer));
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}
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Reference<DirectoryLayer> DirectorySubspace::getDirectoryLayer() {
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return directoryLayer;
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}
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const Standalone<StringRef> DirectorySubspace::getLayer() const {
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return layer;
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}
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const IDirectory::Path DirectorySubspace::getPath() const {
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return path;
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}
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IDirectory::Path DirectorySubspace::getPartitionSubpath(Path const& path,
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Reference<DirectoryLayer> directoryLayer) const {
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if (!directoryLayer) {
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directoryLayer = this->directoryLayer;
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}
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Path newPath(this->path.begin() + directoryLayer->getPath().size(), this->path.end());
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newPath.insert(newPath.end(), path.begin(), path.end());
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return newPath;
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}
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Reference<DirectoryLayer> DirectorySubspace::getDirectoryLayerForPath(Path const& path) const {
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return directoryLayer;
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}
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} // namespace FDB
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