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-rw-r--r--src/libs/serialisation/Serialiser.cpp501
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diff --git a/src/libs/serialisation/Serialiser.cpp b/src/libs/serialisation/Serialiser.cpp
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--- a/src/libs/serialisation/Serialiser.cpp
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-/* This file is part of Ingen.
- * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
- *
- * Ingen is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation; either version 2 of the License, or (at your option) any later
- * version.
- *
- * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <algorithm>
-#include <cassert>
-#include <cmath>
-#include <cstdlib> // atof
-#include <cstring>
-#include <fstream>
-#include <iostream>
-#include <locale.h>
-#include <stdexcept>
-#include <string>
-#include <utility> // pair, make_pair
-#include <vector>
-#include <raul/Atom.hpp>
-#include <raul/AtomRDF.hpp>
-#include <raul/Path.hpp>
-#include <raul/TableImpl.hpp>
-#include <redlandmm/Model.hpp>
-#include <redlandmm/Node.hpp>
-#include <redlandmm/World.hpp>
-#include "module/World.hpp"
-#include "interface/EngineInterface.hpp"
-#include "interface/Plugin.hpp"
-#include "interface/Patch.hpp"
-#include "interface/Node.hpp"
-#include "interface/Port.hpp"
-#include "interface/Connection.hpp"
-#include "Serialiser.hpp"
-
-using namespace std;
-using namespace Raul;
-using namespace Redland;
-using namespace Ingen;
-using namespace Ingen::Shared;
-
-namespace Ingen {
-namespace Serialisation {
-
-
-Serialiser::Serialiser(Shared::World& world, SharedPtr<Shared::Store> store)
- : _root_path("/")
- , _store(store)
- , _world(*world.rdf_world)
-{
-}
-
-
-void
-Serialiser::to_file(SharedPtr<GraphObject> object, const string& filename)
-{
- _root_path = object->path();
- start_to_filename(filename);
- serialise(object);
- finish();
-}
-
-
-
-string
-Serialiser::to_string(SharedPtr<GraphObject> object,
- const string& base_uri,
- const GraphObject::Variables& extra_rdf)
-{
- start_to_string(object->path(), base_uri);
- serialise(object);
-
- Redland::Node base_rdf_node(_model->world(), Redland::Node::RESOURCE, base_uri);
- for (GraphObject::Variables::const_iterator v = extra_rdf.begin(); v != extra_rdf.end(); ++v) {
- if (v->first.find(":") != string::npos) {
- _model->add_statement(base_rdf_node, v->first,
- AtomRDF::atom_to_node(_model->world(), v->second));
- } else {
- cerr << "Warning: not serialising extra RDF with key '" << v->first << "'" << endl;
- }
- }
-
- return finish();
-}
-
-
-/** Begin a serialization to a file.
- *
- * This must be called before any serializing methods.
- */
-void
-Serialiser::start_to_filename(const string& filename)
-{
- setlocale(LC_NUMERIC, "C");
-
- assert(filename.find(":") == string::npos || filename.substr(0, 5) == "file:");
- if (filename.find(":") == string::npos)
- _base_uri = "file://" + filename;
- else
- _base_uri = filename;
- _model = new Redland::Model(_world);
- _model->set_base_uri(_base_uri);
- _mode = TO_FILE;
-}
-
-
-/** Begin a serialization to a string.
- *
- * This must be called before any serializing methods.
- *
- * The results of the serialization will be returned by the finish() method after
- * the desired objects have been serialised.
- *
- * All serialized paths will have the root path chopped from their prefix
- * (therefore all serialized paths must be descendants of the root)
- */
-void
-Serialiser::start_to_string(const Raul::Path& root, const string& base_uri)
-{
- setlocale(LC_NUMERIC, "C");
-
- _root_path = root;
- _base_uri = base_uri;
- _model = new Redland::Model(_world);
- _model->set_base_uri(base_uri);
- _mode = TO_STRING;
-}
-
-
-/** Finish a serialization.
- *
- * If this was a serialization to a string, the serialization output
- * will be returned, otherwise the empty string is returned.
- */
-string
-Serialiser::finish()
-{
- string ret = "";
- if (_mode == TO_FILE) {
- _model->serialise_to_file(_base_uri);
- } else {
- char* c_str = _model->serialise_to_string();
- ret = c_str;
- free(c_str);
- }
-
- _base_uri = "";
-#ifdef USE_BLANK_NODES
- _node_map.clear();
-#endif
- return ret;
-}
-
-
-Redland::Node
-Serialiser::patch_path_to_rdf_node(const Path& path)
-{
-#ifdef USE_BLANK_NODES
- if (path == _root_path) {
- return Redland::Node(_model->world(), Redland::Node::RESOURCE, _base_uri);
- } else {
- assert(path.length() > _root_path.length());
- return Redland::Node(_model->world(), Redland::Node::RESOURCE,
- _base_uri + string("#") + path.substr(_root_path.length()));
- }
-#else
- return path_to_rdf_node(path);
-#endif
-}
-
-
-
-/** Convert a path to an RDF blank node ID for serializing.
- */
-Redland::Node
-Serialiser::path_to_rdf_node(const Path& path)
-{
-#if USE_BLANK_NODES
- NodeMap::iterator i = _node_map.find(path);
- if (i != _node_map.end()) {
- assert(i->second);
- assert(i->second.get_node());
- return i->second;
- } else {
- Redland::Node id = _world.blank_id(Path::nameify(path.substr(1)));
- assert(id);
- _node_map[path] = id;
- return id;
- }
-#else
- assert(_model);
- assert(path.substr(0, _root_path.length()) == _root_path);
-
- if (path == _root_path)
- return Redland::Node(_model->world(), Redland::Node::RESOURCE, _base_uri);
- else
- return Redland::Node(_model->world(), Redland::Node::RESOURCE,
- path.substr(_root_path.base().length()));
-#endif
-}
-
-
-#if 0
-/** Searches for the filename passed in the path, returning the full
- * path of the file, or the empty string if not found.
- *
- * This function tries to be as friendly a black box as possible - if the path
- * passed is an absolute path and the file is found there, it will return
- * that path, etc.
- *
- * additional_path is a list (colon delimeted as usual) of additional
- * directories to look in. ie the directory the parent patch resides in would
- * be a good idea to pass as additional_path, in the case of a subpatch.
- */
-string
-Serialiser::find_file(const string& filename, const string& additional_path)
-{
- string search_path = additional_path + ":" + _patch_search_path;
-
- // Try to open the raw filename first
- std::ifstream is(filename.c_str(), std::ios::in);
- if (is.good()) {
- is.close();
- return filename;
- }
-
- string directory;
- string full_patch_path = "";
-
- while (search_path != "") {
- directory = search_path.substr(0, search_path.find(':'));
- if (search_path.find(':') != string::npos)
- search_path = search_path.substr(search_path.find(':')+1);
- else
- search_path = "";
-
- full_patch_path = directory +"/"+ filename;
-
- std::ifstream is;
- is.open(full_patch_path.c_str(), std::ios::in);
-
- if (is.good()) {
- is.close();
- return full_patch_path;
- } else {
- cerr << "[Serialiser] Could not find patch file " << full_patch_path << endl;
- }
- }
-
- return "";
-}
-#endif
-
-void
-Serialiser::serialise(SharedPtr<GraphObject> object) throw (std::logic_error)
-{
- if (!_model)
- throw std::logic_error("serialise called without serialization in progress");
-
- SharedPtr<Shared::Patch> patch = PtrCast<Shared::Patch>(object);
- if (patch) {
- serialise_patch(patch);
- return;
- }
-
- SharedPtr<Shared::Node> node = PtrCast<Shared::Node>(object);
- if (node) {
- serialise_node(node, path_to_rdf_node(node->path()));
- return;
- }
-
- SharedPtr<Shared::Port> port = PtrCast<Shared::Port>(object);
- if (port) {
- serialise_port(port.get(), path_to_rdf_node(port->path()));
- return;
- }
-
- cerr << "[Serialiser] WARNING: Unsupported object type, "
- << object->path() << " not serialised." << endl;
-}
-
-
-void
-Serialiser::serialise_patch(SharedPtr<Shared::Patch> patch)
-{
- assert(_model);
-
- const Redland::Node patch_id = patch_path_to_rdf_node(patch->path());
-
- _model->add_statement(
- patch_id,
- "rdf:type",
- Redland::Node(_model->world(), Redland::Node::RESOURCE, "http://drobilla.net/ns/ingen#Patch"));
-
- GraphObject::Variables::const_iterator s = patch->variables().find("lv2:symbol");
- // If symbol is stored as a variable, write that
- if (s != patch->variables().end()) {
- _model->add_statement(patch_id, "lv2:symbol",
- Redland::Node(_model->world(), Redland::Node::LITERAL, s->second.get_string()));
- // Otherwise take the one from our path (if possible)
- } else if (patch->path() != "/") {
- _model->add_statement(
- patch_id, "lv2:symbol",
- Redland::Node(_model->world(), Redland::Node::LITERAL, patch->path().name()));
- }
-
- _model->add_statement(
- patch_id,
- "ingen:polyphony",
- AtomRDF::atom_to_node(_model->world(), Atom((int)patch->internal_polyphony())));
-
- _model->add_statement(
- patch_id,
- "ingen:enabled",
- AtomRDF::atom_to_node(_model->world(), Atom((bool)patch->enabled())));
-
- serialise_variables(patch_id, patch->variables());
-
- for (GraphObject::const_iterator n = _store->children_begin(patch);
- n != _store->children_end(patch); ++n) {
-
- if (n->second->graph_parent() != patch.get())
- continue;
-
- SharedPtr<Shared::Patch> patch = PtrCast<Shared::Patch>(n->second);
- SharedPtr<Shared::Node> node = PtrCast<Shared::Node>(n->second);
- if (patch) {
- _model->add_statement(patch_id, "ingen:node", patch_path_to_rdf_node(patch->path()));
- serialise_patch(patch);
- } else if (node) {
- const Redland::Node node_id = path_to_rdf_node(n->second->path());
- _model->add_statement(patch_id, "ingen:node", node_id);
- serialise_node(node, node_id);
- }
- }
-
- for (uint32_t i=0; i < patch->num_ports(); ++i) {
- Port* p = patch->port(i);
- const Redland::Node port_id = path_to_rdf_node(p->path());
- _model->add_statement(patch_id, "ingen:port", port_id);
- serialise_port(p, port_id);
- }
-
- for (Shared::Patch::Connections::const_iterator c = patch->connections().begin();
- c != patch->connections().end(); ++c) {
- serialise_connection(patch, *c);
- }
-}
-
-
-void
-Serialiser::serialise_plugin(SharedPtr<Shared::Plugin> plugin)
-{
- assert(_model);
-
- const Redland::Node plugin_id = Redland::Node(_model->world(), Redland::Node::RESOURCE, plugin->uri());
-
- _model->add_statement(
- plugin_id,
- "rdf:type",
- Redland::Node(_model->world(), Redland::Node::RESOURCE, plugin->type_uri()));
-}
-
-
-void
-Serialiser::serialise_node(SharedPtr<Shared::Node> node, const Redland::Node& node_id)
-{
- const Redland::Node plugin_id
- = Redland::Node(_model->world(), Redland::Node::RESOURCE, node->plugin()->uri());
-
- _model->add_statement(
- node_id,
- "rdf:type",
- Redland::Node(_model->world(), Redland::Node::RESOURCE, "ingen:Node"));
-
- _model->add_statement(
- node_id,
- "lv2:symbol",
- Redland::Node(_model->world(), Redland::Node::LITERAL, node->path().name()));
-
- _model->add_statement(
- node_id,
- "ingen:plugin",
- plugin_id);
-
- _model->add_statement(
- node_id,
- "ingen:polyphonic",
- AtomRDF::atom_to_node(_model->world(), Atom(node->polyphonic())));
-
- //serialise_plugin(node->plugin());
-
- for (uint32_t i=0; i < node->num_ports(); ++i) {
- Port* p = node->port(i);
- assert(p);
- const Redland::Node port_id = path_to_rdf_node(p->path());
- serialise_port(p, port_id);
- _model->add_statement(node_id, "ingen:port", port_id);
- }
-
- serialise_variables(node_id, node->variables());
-}
-
-
-/** Writes a port subject with various information only if there are some
- * predicate/object pairs to go with it (eg if the port has variable, or a value, or..).
- * Audio output ports with no variable will not be written, for example.
- */
-void
-Serialiser::serialise_port(const Port* port, const Redland::Node& port_id)
-{
- if (port->is_input())
- _model->add_statement(port_id, "rdf:type",
- Redland::Node(_model->world(), Redland::Node::RESOURCE, "ingen:InputPort"));
- else
- _model->add_statement(port_id, "rdf:type",
- Redland::Node(_model->world(), Redland::Node::RESOURCE, "ingen:OutputPort"));
-
- _model->add_statement(port_id, "lv2:index",
- AtomRDF::atom_to_node(_model->world(), Atom((int)port->index())));
-
- _model->add_statement(port_id, "lv2:symbol",
- Redland::Node(_model->world(), Redland::Node::LITERAL, port->path().name()));
-
- _model->add_statement(port_id, "rdf:type",
- Redland::Node(_model->world(), Redland::Node::RESOURCE, port->type().uri()));
-
- if (port->type() == DataType::CONTROL && port->is_input())
- _model->add_statement(port_id, "ingen:value",
- AtomRDF::atom_to_node(_model->world(), Atom(port->value())));
-
- serialise_variables(port_id, port->variables());
-}
-
-
-void
-Serialiser::serialise_connection(SharedPtr<GraphObject> parent,
- SharedPtr<Connection> connection) throw (std::logic_error)
-{
- if (!_model)
- throw std::logic_error("serialise_connection called without serialization in progress");
-
- const Redland::Node src_node = path_to_rdf_node(connection->src_port_path());
- const Redland::Node dst_node = path_to_rdf_node(connection->dst_port_path());
-
- /* This would allow associating data with the connection... */
- const Redland::Node connection_node = _world.blank_id();
- _model->add_statement(connection_node, "ingen:source", src_node);
- _model->add_statement(connection_node, "ingen:destination", dst_node);
- if (parent) {
- const Redland::Node parent_node = path_to_rdf_node(parent->path());
- _model->add_statement(parent_node, "ingen:connection", connection_node);
- } else {
- _model->add_statement(connection_node, "rdf:type",
- Redland::Node(_model->world(), Redland::Node::RESOURCE, "ingen:Connection"));
- }
-
- /* ... but this is cleaner */
- //_model->add_statement(dst_node, "ingen:connectedTo", src_node);
-}
-
-
-void
-Serialiser::serialise_variables(Redland::Node subject, const GraphObject::Variables& variables)
-{
- for (GraphObject::Variables::const_iterator v = variables.begin(); v != variables.end(); ++v) {
- if (v->first.find(":") != string::npos && v->first != "ingen:document") {
- if (v->second.is_valid()) {
- const Redland::Node var_id = _world.blank_id();
- const Redland::Node key(_model->world(), Redland::Node::RESOURCE, v->first);
- const Redland::Node value = AtomRDF::atom_to_node(_model->world(), v->second);
- if (value) {
- _model->add_statement(subject, "lv2var:variable", var_id);
- _model->add_statement(var_id, "rdf:predicate", key);
- _model->add_statement(var_id, "rdf:value", value);
- } else {
- cerr << "Warning: can not serialise value: key '" << v->first << "', type "
- << (int)v->second.type() << endl;
- }
- } else {
- cerr << "Warning: variable with no value: key '" << v->first << "'" << endl;
- }
- } else {
- cerr << "Warning: not serialising variable with invalid key '" << v->first << "'" << endl;
- }
- }
-}
-
-
-} // namespace Serialisation
-} // namespace Ingen
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