2 Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file src/asset.cc
24 #include "raw_convert.h"
27 #include "exceptions.h"
28 #include "dcp_assert.h"
29 #include "compose.hpp"
30 #include <libxml++/libxml++.h>
31 #include <boost/algorithm/string.hpp>
34 using boost::function;
35 using boost::optional;
38 /** Create an Asset with a randomly-generated ID */
44 /** Create an Asset from a given file.
45 * @param file File name.
47 Asset::Asset (boost::filesystem::path file)
53 Asset::Asset (string id, boost::filesystem::path file)
61 Asset::write_to_pkl (xmlpp::Node* node, Standard standard) const
63 DCP_ASSERT (!_file.empty ());
65 xmlpp::Node* asset = node->add_child ("Asset");
66 asset->add_child("Id")->add_child_text ("urn:uuid:" + _id);
67 asset->add_child("AnnotationText")->add_child_text (_id);
68 asset->add_child("Hash")->add_child_text (hash ());
69 asset->add_child("Size")->add_child_text (raw_convert<string> (boost::filesystem::file_size (_file)));
70 asset->add_child("Type")->add_child_text (pkl_type (standard));
74 Asset::write_to_assetmap (xmlpp::Node* node, boost::filesystem::path root) const
76 DCP_ASSERT (!_file.empty ());
78 optional<boost::filesystem::path> path = relative_to_root (
79 boost::filesystem::canonical (root),
80 boost::filesystem::canonical (_file)
84 /* The path of this asset is not within our DCP, so we assume it's an external
90 xmlpp::Node* asset = node->add_child ("Asset");
91 asset->add_child("Id")->add_child_text ("urn:uuid:" + _id);
92 xmlpp::Node* chunk_list = asset->add_child ("ChunkList");
93 xmlpp::Node* chunk = chunk_list->add_child ("Chunk");
95 /* On Windows path.string() will contain back-slashes; replace these with
96 forward-slashes. XXX: perhaps there is a nicer way to do this with boost.
99 string path_string = path.get().string ();
100 boost::replace_all (path_string, "\\", "/");
102 chunk->add_child("Path")->add_child_text (path_string);
103 chunk->add_child("VolumeIndex")->add_child_text ("1");
104 chunk->add_child("Offset")->add_child_text ("0");
105 chunk->add_child("Length")->add_child_text (raw_convert<string> (boost::filesystem::file_size (_file)));
109 Asset::hash (function<void (float)> progress) const
111 DCP_ASSERT (!_file.empty ());
113 if (_hash.empty ()) {
114 _hash = make_digest (_file, progress);
121 Asset::equals (boost::shared_ptr<const Asset> other, EqualityOptions, NoteHandler note) const
123 if (_hash != other->_hash) {
124 note (DCP_ERROR, "Asset: hashes differ");
131 /** Set the file that holds this asset on disk. Calling this function
132 * clears this object's store of its hash, so you should call ::hash
135 * @param file New file's path.
138 Asset::set_file (boost::filesystem::path file) const
140 _file = boost::filesystem::absolute (file);