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-rw-r--r--src/AtomReader.cpp274
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diff --git a/src/AtomReader.cpp b/src/AtomReader.cpp
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+++ b/src/AtomReader.cpp
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+/*
+ This file is part of Ingen.
+ Copyright 2007-2012 David Robillard <http://drobilla.net/>
+
+ Ingen is free software: you can redistribute it and/or modify it under the
+ terms of the GNU Affero General Public License as published by the Free
+ Software Foundation, either version 3 of the License, or 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 Affero General Public License for details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with Ingen. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <utility>
+
+#include "ingen/AtomReader.hpp"
+#include "ingen/URIMap.hpp"
+#include "lv2/lv2plug.in/ns/ext/atom/util.h"
+#include "raul/Path.hpp"
+#include "raul/log.hpp"
+
+namespace Ingen {
+
+AtomReader::AtomReader(URIMap& map, URIs& uris, Forge& forge, Interface& iface)
+ : _map(map)
+ , _uris(uris)
+ , _forge(forge)
+ , _iface(iface)
+{
+}
+
+void
+AtomReader::get_atom(const LV2_Atom* in, Raul::Atom& out)
+{
+ if (in) {
+ if (in->type == _uris.atom_URID) {
+ const LV2_Atom_URID* urid = (const LV2_Atom_URID*)in;
+ const char* uri = _map.unmap_uri(urid->body);
+ if (uri) {
+ out = _forge.alloc_uri(_map.unmap_uri(urid->body));
+ } else {
+ Raul::error(Raul::fmt("Unable to unmap URID %1%\n")
+ % urid->body);
+ }
+ } else {
+ out = _forge.alloc(in->size, in->type, LV2_ATOM_BODY(in));
+ }
+ }
+}
+
+void
+AtomReader::get_props(const LV2_Atom_Object* obj,
+ Ingen::Resource::Properties& props)
+{
+ if (obj->body.otype) {
+ props.insert(
+ std::make_pair(_uris.rdf_type,
+ _forge.alloc_uri(_map.unmap_uri(obj->body.otype))));
+ }
+ LV2_ATOM_OBJECT_FOREACH(obj, p) {
+ Raul::Atom val;
+ get_atom(&p->value, val);
+ props.insert(std::make_pair(_map.unmap_uri(p->key), val));
+ }
+}
+
+const char*
+AtomReader::atom_to_uri(const LV2_Atom* atom)
+{
+ if (atom && atom->type == _uris.atom_URI) {
+ return (const char*)LV2_ATOM_BODY(atom);
+ } else if (atom && atom->type == _uris.atom_URID) {
+ return _map.unmap_uri(((LV2_Atom_URID*)atom)->body);
+ } else {
+ return NULL;
+ }
+}
+
+bool
+AtomReader::is_message(URIs& uris, const LV2_Atom* msg)
+{
+ if (msg->type != uris.atom_Blank && msg->type != uris.atom_Resource) {
+ return false;
+ }
+
+ const LV2_Atom_Object* obj = (const LV2_Atom_Object*)msg;
+ return (obj->body.otype == uris.patch_Get ||
+ obj->body.otype == uris.patch_Delete ||
+ obj->body.otype == uris.patch_Put ||
+ obj->body.otype == uris.patch_Patch ||
+ obj->body.otype == uris.patch_Move ||
+ obj->body.otype == uris.patch_Response);
+}
+
+bool
+AtomReader::write(const LV2_Atom* msg)
+{
+ if (msg->type != _uris.atom_Blank && msg->type != _uris.atom_Resource) {
+ Raul::warn << (Raul::fmt("Unknown message type <%1%>\n")
+ % _map.unmap_uri(msg->type)).str();
+ return false;
+ }
+
+ const LV2_Atom_Object* obj = (const LV2_Atom_Object*)msg;
+ const LV2_Atom* subject = NULL;
+
+ lv2_atom_object_get(obj, (LV2_URID)_uris.patch_subject, &subject, NULL);
+ const char* subject_uri = atom_to_uri(subject);
+
+ if (obj->body.otype == _uris.patch_Get) {
+ _iface.set_response_id(obj->body.id);
+ _iface.get(subject_uri);
+ } else if (obj->body.otype == _uris.patch_Delete) {
+ const LV2_Atom_Object* body = NULL;
+ lv2_atom_object_get(obj, (LV2_URID)_uris.patch_body, &body, 0);
+
+ if (subject_uri && !body) {
+ _iface.del(subject_uri);
+ return true;
+ } else if (body && body->body.otype == _uris.ingen_Edge) {
+ const LV2_Atom* tail = NULL;
+ const LV2_Atom* head = NULL;
+ const LV2_Atom* incidentTo = NULL;
+ lv2_atom_object_get(body,
+ (LV2_URID)_uris.ingen_tail, &tail,
+ (LV2_URID)_uris.ingen_head, &head,
+ (LV2_URID)_uris.ingen_incidentTo, &incidentTo,
+ NULL);
+
+ Raul::Atom tail_atom;
+ Raul::Atom head_atom;
+ Raul::Atom incidentTo_atom;
+ get_atom(tail, tail_atom);
+ get_atom(head, head_atom);
+ get_atom(incidentTo, incidentTo_atom);
+ if (tail_atom.is_valid() && head_atom.is_valid()) {
+ _iface.disconnect(Raul::Path(tail_atom.get_uri()),
+ Raul::Path(head_atom.get_uri()));
+ } else if (incidentTo_atom.is_valid()) {
+ _iface.disconnect_all(subject_uri,
+ Raul::Path(incidentTo_atom.get_uri()));
+ } else {
+ Raul::warn << "Delete of unknown object." << std::endl;
+ return false;
+ }
+ }
+ } else if (obj->body.otype == _uris.patch_Put) {
+ const LV2_Atom_Object* body = NULL;
+ lv2_atom_object_get(obj, (LV2_URID)_uris.patch_body, &body, 0);
+ if (!body) {
+ Raul::warn << "Put message has no body" << std::endl;
+ return false;
+ } else if (!subject_uri) {
+ Raul::warn << "Put message has no subject" << std::endl;
+ return false;
+ }
+
+ if (body->body.otype == _uris.ingen_Edge) {
+ LV2_Atom* tail = NULL;
+ LV2_Atom* head = NULL;
+ lv2_atom_object_get(body,
+ (LV2_URID)_uris.ingen_tail, &tail,
+ (LV2_URID)_uris.ingen_head, &head,
+ NULL);
+ if (!tail || !head) {
+ Raul::warn << "Edge has no tail or head" << std::endl;
+ return false;
+ }
+
+ Raul::Atom tail_atom;
+ Raul::Atom head_atom;
+ get_atom(tail, tail_atom);
+ get_atom(head, head_atom);
+ _iface.connect(Raul::Path(tail_atom.get_uri()),
+ Raul::Path(head_atom.get_uri()));
+ } else {
+ Ingen::Resource::Properties props;
+ get_props(body, props);
+ _iface.set_response_id(obj->body.id);
+ _iface.put(subject_uri, props);
+ }
+ } else if (obj->body.otype == _uris.patch_Set) {
+ const LV2_Atom_Object* body = NULL;
+ lv2_atom_object_get(obj, (LV2_URID)_uris.patch_body, &body, 0);
+ if (!body) {
+ Raul::warn << "Set message has no body" << std::endl;
+ return false;
+ } else if (!subject_uri) {
+ Raul::warn << "Set message has no subject" << std::endl;
+ return false;
+ }
+
+ LV2_ATOM_OBJECT_FOREACH(body, p) {
+ Raul::Atom val;
+ get_atom(&p->value, val);
+ _iface.set_property(subject_uri, _map.unmap_uri(p->key), val);
+ }
+ } else if (obj->body.otype == _uris.patch_Patch) {
+ if (!subject_uri) {
+ Raul::warn << "Put message has no subject" << std::endl;
+ return false;
+ }
+
+ const LV2_Atom_Object* remove = NULL;
+ lv2_atom_object_get(obj, (LV2_URID)_uris.patch_remove, &remove, 0);
+ if (!remove) {
+ Raul::warn << "Patch message has no remove" << std::endl;
+ return false;
+ }
+
+ const LV2_Atom_Object* add = NULL;
+ lv2_atom_object_get(obj, (LV2_URID)_uris.patch_add, &add, 0);
+ if (!add) {
+ Raul::warn << "Patch message has no add" << std::endl;
+ return false;
+ }
+
+ Ingen::Resource::Properties add_props;
+ get_props(remove, add_props);
+
+ Ingen::Resource::Properties remove_props;
+ get_props(remove, remove_props);
+
+ _iface.delta(subject_uri, remove_props, add_props);
+ } else if (obj->body.otype == _uris.patch_Move) {
+ if (!subject_uri) {
+ Raul::warn << "Move message has no subject" << std::endl;
+ return false;
+ }
+
+ const LV2_Atom* dest = NULL;
+ lv2_atom_object_get(obj, (LV2_URID)_uris.patch_destination, &dest, 0);
+ if (!dest) {
+ Raul::warn << "Move message has no destination" << std::endl;
+ return false;
+ }
+
+ const char* dest_uri = atom_to_uri(dest);
+ if (!dest_uri) {
+ Raul::warn << "Move message destination is not a URI" << std::endl;
+ return false;
+ }
+
+ _iface.move(subject_uri, dest_uri);
+ } else if (obj->body.otype == _uris.patch_Response) {
+ const LV2_Atom* request = NULL;
+ const LV2_Atom* body = NULL;
+ lv2_atom_object_get(obj,
+ (LV2_URID)_uris.patch_request, &request,
+ (LV2_URID)_uris.patch_body, &body,
+ 0);
+ if (!request || request->type != _uris.atom_Int) {
+ Raul::warn << "Response message has no request" << std::endl;
+ return false;
+ } else if (!body || body->type != _uris.atom_Int) {
+ Raul::warn << "Response message body is not integer" << std::endl;
+ return false;
+ }
+ _iface.response(((LV2_Atom_Int*)request)->body,
+ (Ingen::Status)((LV2_Atom_Int*)body)->body,
+ subject_uri);
+ } else {
+ Raul::warn << "Unknown object type <"
+ << _map.unmap_uri(obj->body.otype)
+ << ">" << std::endl;
+ }
+
+ return true;
+}
+
+} // namespace Ingen
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