2 Copyright (C) 2014 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>
33 using boost::function;
34 using boost::optional;
37 /** Create an Asset with a randomly-generated ID */
43 /** Create an Asset from a given file.
44 * @param file File name.
46 Asset::Asset (boost::filesystem::path file)
52 Asset::Asset (string id, boost::filesystem::path file)
60 Asset::write_to_pkl (xmlpp::Node* node, Standard standard) const
62 DCP_ASSERT (!_file.empty ());
64 xmlpp::Node* asset = node->add_child ("Asset");
65 asset->add_child("Id")->add_child_text ("urn:uuid:" + _id);
66 asset->add_child("AnnotationText")->add_child_text (_id);
67 asset->add_child("Hash")->add_child_text (hash ());
68 asset->add_child("Size")->add_child_text (raw_convert<string> (boost::filesystem::file_size (_file)));
69 asset->add_child("Type")->add_child_text (pkl_type (standard));
73 Asset::write_to_assetmap (xmlpp::Node* node, boost::filesystem::path root) const
75 DCP_ASSERT (!_file.empty ());
77 xmlpp::Node* asset = node->add_child ("Asset");
78 asset->add_child("Id")->add_child_text ("urn:uuid:" + _id);
79 xmlpp::Node* chunk_list = asset->add_child ("ChunkList");
80 xmlpp::Node* chunk = chunk_list->add_child ("Chunk");
82 optional<boost::filesystem::path> path = relative_to_root (
83 boost::filesystem::canonical (root),
84 boost::filesystem::canonical (_file)
88 throw MiscError (String::compose ("Asset %1 is not within the directory %2", _file, root));
91 chunk->add_child("Path")->add_child_text (path.get().string ());
92 chunk->add_child("VolumeIndex")->add_child_text ("1");
93 chunk->add_child("Offset")->add_child_text ("0");
94 chunk->add_child("Length")->add_child_text (raw_convert<string> (boost::filesystem::file_size (_file)));
98 Asset::hash (function<void (float)> progress) const
100 DCP_ASSERT (!_file.empty ());
102 if (_hash.empty ()) {
103 _hash = make_digest (_file, progress);
110 Asset::equals (boost::shared_ptr<const Asset> other, EqualityOptions, NoteHandler note) const
112 if (_hash != other->_hash) {
113 note (DCP_ERROR, "Asset: hashes differ");
120 /** Set the file that holds this asset on disk. Calling this function
121 * clears this object's store of its hash, so you should call ::hash
124 * @param file New file's path.
127 Asset::set_file (boost::filesystem::path file) const
129 _file = boost::filesystem::absolute (file);