1
0
Fork 0
mirror of https://github.com/Yetangitu/ampache synced 2025-10-05 02:39:47 +02:00
ampache/modules/php_musicbrainz/mbXmlParser.php
2010-07-02 04:26:45 +00:00

423 lines
15 KiB
PHP

<?php
/* vim:set tabstop=4 softtabstop=4 shiftwidth=4 noexpandtab: */
/*
Copyright 2009, 2010 Timothy John Wood, Paul Arthur MacIain
This file is part of php_musicbrainz
php_musicbrainz is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2.1 of the License, or
(at your option) any later version.
php_musicbrainz 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with php_musicbrainz. If not, see <http://www.gnu.org/licenses/>.
*/
class mbParseError extends Exception { }
class mbXmlParser {
private $xml_parser;
private $factory;
public function __construct() {
$this->xml_parser = new xmlParser();
$this->factory = new mbDefaultFactory();
}
private function parseList(XMLNode $node, array $list, $func) {
for ($i = 0; $i < $node->nChildNodes(); $i++) {
$cnode = $node->getChildNode($i);
$list[] = call_user_func(array($this, $func), $cnode);
}
}
private function parseResults(XMLNode $node, array $list, $func, $type) {
for ($i = 0; $i < $node->nChildNodes(); $i++) {
$cnode = $node->getChildNode($i);
$object = call_user_func(array($this, $func), $cnode);
$score = $cnode->getAttribute("ext:score");
eval('$to_add = new ' . $type . 'Result($object,$score);');
$to_add->setCount($node->getAttribute("count"));
$to_add->setOffset($node->getAttribute("offset"));
$list[] = $to_add;
}
}
private function parseRelations(XMLNode $node, MusicBrainzEntity $entity) {
$targetType = $node->getAttribute("target-type");
if ($targetType == '')
return;
for ($i = 0; $i < $node->nChildNodes(); $i++) {
$cnode = $node->getChildNode($i);
if (strtolower($cnode->getName()) == "relation") {
$relation = $this->createRelation($cnode, $targetType);
if ($relation)
$entity->addRelation($relation);
}
}
}
private function parseUserResults(XMLNode $node, array $userList) {
for ($i = 0; $i < $node->nChildNodes(); $i++) {
$cnode = $node->getChildNode($i);
$userList[] = $this->createUser($cnode);
}
}
private function createUser(XMLNode $node) {
$user = $this->factory->newUser();
for ($i = 0; $i < $node->nChildNodes(); $i++) {
$cNode = $node->getChildNode($i);
$name = $cNode->getName();
switch ($name) {
case "name":
$user->setName($cNode->getText());
break;
case "ext:nag":
$user->setShowNag($node->getAttribute("show") == 'true' ? true : false);
break;
}
}
return $user;
}
private function createArtistAlias(XMLNode $node) {
$aa = $this->factory->newArtistAlias();
$aa->setType($node->getAttribute("type"));
$aa->setScript($node->getAttribute("script"));
$aa->setValue($node->getText());
return $aa;
}
private function createTag(XMLNode $node) {
$tag = $this->factory->newTag();
$tag->setCount($node->getAttribute("count"));
$tag->setName($node->getText());
return $tag;
}
private function createLabelAlias(XML $node) {
$la = $this->factory->newLabelAlias();
$la->setType($node->getAttribute("type"));
$la->setScript($node->getAttribute("script"));
$la->setValue($node->getText());
return $la;
}
private function createDisc(XMLNode $node) {
$disc = $this->factory->newDisc();
$disc->setId($node->getAttribute("id"));
return $disc;
}
private function createReleaseEvent(XMLNode $node) {
$relEvent = $this->factory->newReleaseEvent();
$relEvent->setCountry($node->getAttribute("country"));
$relEvent->setDate($node->getAttribute("date"));
$relEvent->setCatalogNumber($node->getAttribute("catalog-number"));
$relEvent->setBarcode($node->getAttribute("barcode"));
for ($i = 0; $i < $node->nChildNodes(); $i++) {
$cnode = $node->getChildNode($i);
switch (strtolower($cnode->getName())) {
case 'label':
$relEvent->setLabel($this->createLabel($cnode));
break;
}
}
return $relEvent;
}
private function createRating(XMLNode $node) {
$rating = $this->factory->newRating();
$rating->setRating($node->getText());
return $rating;
}
private function createLabel(XMLNode $node) {
$label = $this->factory->newLabel();
$label->setId($node->getAttribute("id"));
$label->setType($node->getAttribute("type"));
for ($i = 0; $i < $node->nChildNodes(); $i++) {
$cnode = $node->getChildNode($i);
switch (strtolower($cnode->getName())) {
case "name":
case "sort-name":
$label->setSortName($cnode->getText());
break;
case "disambiguation":
$label->setDisambiguation($cnode->getText());
break;
case "life-span":
$begin = $cnode->getAttribute("begin");
$end = $cnode->getAttribute("end");
if ($begin != "") {
$label->setBeginDate($begin);
}
if ($end != "") {
$label->setEndDate($end);
}
break;
case "alias-list":
$pAlias = $label->getAliases();
$this->parseList($cnode, $pAlias, 'createAlias');
break;
case "release-list":
$pRel = $label->getReleases();
$label->setReleasesCount($cnode->getAttribute("count"));
$label->setReleasesOffset($cnode->getAttribute("offset"));
$this->parseList($cnode, $pRel, 'createRelease');
break;
case "relation-list":
$this->parseRelations($cnode, $label);
break;
case "tag-list":
$pTag = $label->getTags();
$this->parseList($cnode, $pTag, 'createTag');
break;
}
}
return $label;
}
private function createArtist(XMLNode $node) {
$artist = $this->factory->newArtist();
$artist->setId($node->getAttribute("id"));
$artist->setType($node->getAttribute("type"));
for ($i = 0; $i < $node->nChildNodes(); $i++) {
$cnode = $node->getChildNode($i);
switch (strtolower($cnode->getName())) {
case "name":
$artist->setName($cnode->getText());
break;
case "sort-name":
$artist->setSortName($cnode->getText());
break;
case "disambiguation":
$artist->setDisambiguation($cnode->getText());
break;
case "life-span":
$begin = $cnode->getAttribute("begin");
$end = $cnode->getAttribute("end");
if ($begin != "") {
$artist->setBeginDate($begin);
}
if ($end != "") {
$artist->setEndDate($end);
}
break;
case "alias-list":
$pAli = $artist->getAliases();
$this->parseList($cnode, $pAli, 'createArtistAlias');
break;
case "release-list":
$pRel = $artist->getReleases();
$artist->setReleasesCount($cnode->getAttribute("count"));
$artist->setReleasesOffset($cnode->getAttribute("offset"));
$this->parseList($cnode, $pRel, 'createRelease');
break;
case "relation-list":
$this->parseRelations($cnode, $artist);
break;
case "tag-list":
$pTag = $artist->getTags();
$this->parseList($cnode, $pTag, 'createTag');
break;
}
}
return $artist;
}
private function createTrack(XMLNode $node) {
$track = $this->factory->newTrack();
$track->setId($node->getAttribute("id"));
for ($i = 0; $i < $node->nChildNodes(); $i++) {
$cnode = $node->getChildNode($i);
switch(strtolower($cnode->getName())) {
case "title":
$track->setTitle($cnode->getText());
break;
case "artist":
$track->setArtist($this->createArtist($cnode));
break;
case "duration":
$track->setDuration($cnode->getText());
break;
case "release-list":
$pRel = $track->getReleases();
$track->setReleasesOffset($cnode->getAttribute("offset"));
$track->setReleasesCount($cnode->getAttribute("count"));
$this->parseList($cnode, $pRel, 'createRelease');
break;
case "relation-list":
$this->parseRelations($cnode, $track);
break;
case "tag-list":
$pTag = $track->getTags();
$this->parseList($cnode, $pTag, 'createTag');
break;
}
}
return $track;
}
private function createRelease(XMLNode $node) {
$release = $this->factory->newRelease();
$release->setId($node->getAttribute("id"));
$array = array();
$types = $node->getAttribute("type");
$types = explode(' ', $types);
foreach ($types as $one_type) {
$array[] = $one_type;
}
$release->setTypes($array);
for ($i = 0; $i < $node->nChildNodes(); $i++) {
$cnode = $node->getChildNode($i);
switch (strtolower($cnode->getName())) {
case "title":
$release->setTitle($cnode->getText());
break;
case "text-representation":
$release->setTextLanguage($cnode->getAttribute("language"));
$release->setTextScript($cnode->getAttribute("script"));
break;
case "asin":
$release->setAsin($cnode->getText());
break;
case "artist":
$release->setArtist($this->createArtist($cnode));
break;
case "release-event-list":
$pRelEv = $release->getReleaseEvents();
$this->parseList($cnode, $pRelEv, 'createReleaseEvent');
break;
case "disc-list":
$pDisc = $release->getDiscs();
$this->parseList($cnode, $pDisc, 'createDisc');
break;
case "track-list":
$pTrack = $release->getTracks();
$release->setTracksOffset($cnode->getAttribute("offset"));
$release->setTracksCount($cnode->getAttribute("count"));
$this->parseList($cnode, $pTrack, 'createTrack');
break;
case "relation-list":
$this->parseRelations($cnode, $release);
break;
case "tag-list":
$pTag = $release->getTags();
$this->parseList($cnode, $pTag, 'createTag');
break;
}
}
return $release;
}
private function createRelation(XMLNode $node, $type) {
$relation = $this->factory->newRelation();
$relation->setType(extractFragment($node->getAttribute("type"))); // TODO: fixme
$relation->setTargetType($type);
$relation->setTargetId($node->getAttribute("target"));
$dir = mbRelation::DIR_BOTH;
switch(strtolower($node->getAttribute("direction"))) {
case "forward":
$dir = mbRelation::DIR_FORWARD;
break;
case "backward":
$dir = mbRelation::DIR_BACKWARD;
break;
}
$relation->setDirection($dir);
$relation->setBeginDate($node->getAttribute("begin"));
$relation->setEndDate($node->getAttribute("end"));
// TODO: ns
$attrs = $node->getAttribute("attributes");
$attributes = explode(' ', $attrs);
foreach ($attributes as $attr)
$relation->addAttribute($attr);
$target = null;
if ($node->nChildNodes() > 0 ) {
$cnode = $node->getChildNode(0);
switch (strtolower($cnode->getName())) {
case "artist":
$target = $this->createArtist($cnode);
break;
case "release":
$target = $this->createRelease($cnode);
break;
case "track":
$target = $this->createTrack($cnode);
break;
}
}
$relation->setTarget($target);
return $relation;
}
public function parse($data) {
$nodes = $this->xml_parser->parse($data);
if ($nodes == false) {
throw new mbParseError($this->xml_parser->lastError(), 1);
}
$md = new mbMetadata();
for ($i = 0; $i < $nodes->nChildNodes(); $i++) {
$node = $nodes->getChildNode($i);
$name = strtolower($node->getName());
switch ($name) {
case "artist":
$md->setArtist($this->createArtist($node));
break;
case "track":
$md->setTrack($this->createTrack($node));
break;
case "release":
$md->setRelease($this->createRelease($node));
break;
case "label":
$md->setLabel($this->createLabel($node));
break;
case "user-rating":
$md->setRating($this->createRating($node));
break;
case "artist-list":
$pArt = $md->getArtistResults();
$this->parseResults($node, $pArt, 'createArtist', 'Artist');
break;
case "track-list":
$pTrack = $md->getTrackResults();
$this->parseResults($node, $pTrack, 'createTrack', 'Track');
break;
case "release-list":
$pRel = $md->getReleaseResults();
$this->parseResults($node, $pRel, 'createRelease', 'Release');
break;
case "ext:user-list":
$list = $md->getUserList();
$this->parseUserResults($node, $list);
break;
}
}
return $md;
}
}
?>