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28307d0db6
For now, all Resources are implemented with a modification time, but the public API has been left as an Optional since abstractly, not all resources will have a modification time.
118 lines
3 KiB
C++
118 lines
3 KiB
C++
/*
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* Copyright (c) 2023, Andrew Kaster <akaster@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/LexicalPath.h>
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#include <LibCore/Resource.h>
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#include <LibCore/ResourceImplementation.h>
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#include <LibCore/System.h>
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namespace Core {
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Resource::Resource(String path, Scheme scheme, NonnullOwnPtr<Core::MappedFile> file, time_t modified_time)
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: m_path(move(path))
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, m_scheme(scheme)
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, m_data(move(file))
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, m_modified_time(modified_time)
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{
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}
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Resource::Resource(String path, Scheme scheme, ByteBuffer buffer, time_t modified_time)
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: m_path(move(path))
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, m_scheme(scheme)
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, m_data(move(buffer))
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, m_modified_time(modified_time)
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{
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}
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Resource::Resource(String path, Scheme scheme, DirectoryTag, time_t modified_time)
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: m_path(move(path))
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, m_scheme(scheme)
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, m_data(DirectoryTag {})
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, m_modified_time(modified_time)
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{
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}
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ErrorOr<NonnullRefPtr<Resource>> Resource::load_from_filesystem(StringView path)
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{
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auto filepath = LexicalPath(path);
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if (filepath.is_absolute())
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return load_from_uri(TRY(String::formatted("file://{}", path)));
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auto cwd = TRY(Core::System::getcwd());
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return load_from_uri(TRY(String::formatted("file://{}", filepath.prepend(cwd).string())));
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}
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ErrorOr<NonnullRefPtr<Resource>> Resource::load_from_uri(StringView uri)
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{
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return ResourceImplementation::the().load_from_uri(uri);
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}
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String Resource::uri() const
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{
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return MUST(String::formatted("{}://{}", m_scheme == Scheme::Resource ? "resource"sv : "file"sv, m_path));
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}
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String Resource::filesystem_path() const
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{
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return ResourceImplementation::the().filesystem_path(*this);
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}
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String Resource::file_url() const
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{
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if (m_scheme == Scheme::File)
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return uri();
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return MUST(String::formatted("file://{}", filesystem_path()));
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}
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Optional<time_t> Resource::modified_time() const
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{
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return m_modified_time;
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}
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String Resource::filename() const
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{
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return MUST(String::from_utf8(LexicalPath(m_path.bytes_as_string_view()).basename()));
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}
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Vector<String> Resource::children() const
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{
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return ResourceImplementation::the().child_names(*this);
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}
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ByteBuffer Resource::clone_data() const
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{
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return m_data.visit(
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[](NonnullOwnPtr<Core::MappedFile> const& file) { return MUST(ByteBuffer::copy(file->bytes())); },
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[](ByteBuffer const& buffer) { return buffer; },
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[](DirectoryTag) -> ByteBuffer { VERIFY_NOT_REACHED(); });
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}
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ByteBuffer Resource::release_data() &&
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{
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VERIFY(!m_data.has<DirectoryTag>());
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if (m_data.has<NonnullOwnPtr<Core::MappedFile>>())
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return MUST(ByteBuffer::copy(m_data.get<NonnullOwnPtr<Core::MappedFile>>()->bytes()));
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return move(m_data).get<ByteBuffer>();
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}
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ReadonlyBytes Resource::data() const
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{
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return m_data.visit(
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[](NonnullOwnPtr<Core::MappedFile> const& file) { return file->bytes(); },
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[](ByteBuffer const& buffer) { return buffer.bytes(); },
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[](DirectoryTag) -> ReadonlyBytes { VERIFY_NOT_REACHED(); });
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}
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FixedMemoryStream Resource::stream() const
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{
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return FixedMemoryStream(data());
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}
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}
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