/* parse getStation xml struct
*/
static void PianoXmlParseGetStationInfoCb (const char *key, const ezxml_t value,
void *data) {
PianoStationInfo_t *info = data;
if (strcmp ("seeds", key) == 0) {
const ezxml_t dataNode = ezxml_get (value, "array", 0, "data", -1);
for (ezxml_t seedNode = ezxml_child (dataNode, "value"); seedNode;
seedNode = seedNode->next) {
struct PianoXmlParseSeedBag bag;
memset (&bag, 0, sizeof (bag));
PianoXmlStructParser (ezxml_child (seedNode, "struct"),
PianoXmlParseSeedCb, &bag);
/* FIXME: use if-clause */
assert (bag.seedId != NULL);
assert (bag.song != NULL || bag.artist != NULL);
if (bag.song != NULL) {
bag.song->seedId = bag.seedId;
if (info->songSeeds == NULL) {
info->songSeeds = bag.song;
} else {
PianoSong_t *curSong = info->songSeeds;
while (curSong->next != NULL) {
curSong = curSong->next;
}
curSong->next = bag.song;
}
} else if (bag.artist != NULL) {
bag.artist->seedId = bag.seedId;
if (info->artistSeeds == NULL) {
info->artistSeeds = bag.artist;
} else {
PianoArtist_t *curSong = info->artistSeeds;
while (curSong->next != NULL) {
curSong = curSong->next;
}
curSong->next = bag.artist;
}
} else {
free (bag.seedId);
}
}
} else if (strcmp ("feedback", key) == 0) {
const ezxml_t dataNode = ezxml_get (value, "array", 0, "data", -1);
for (ezxml_t feedbackNode = ezxml_child (dataNode, "value"); feedbackNode;
feedbackNode = feedbackNode->next) {
if (PianoXmlParsePlaylistStruct (feedbackNode, &info->feedback) !=
PIANO_RET_OK) {
break;
}
}
}
}
/* callback for xml struct parser used in PianoXmlParseSearch, "switch" for
* PianoXmlParseSearchArtistCb and PianoXmlParsePlaylistCb
*/
static void PianoXmlParseSearchCb (const char *key, const ezxml_t value,
void *data) {
PianoSearchResult_t *searchResult = data;
ezxml_t curNode;
if (strcmp ("artists", key) == 0) {
/* skip <value><array><data> */
for (curNode = ezxml_child (ezxml_get (value, "array", 0, "data", -1), "value");
curNode; curNode = curNode->next) {
PianoArtist_t *artist;
if ((artist = calloc (1, sizeof (*artist))) == NULL) {
/* fail silently */
break;
}
memset (artist, 0, sizeof (*artist));
PianoXmlStructParser (ezxml_child (curNode, "struct"),
PianoXmlParseSearchArtistCb, artist);
/* add result to linked list */
if (searchResult->artists == NULL) {
searchResult->artists = artist;
} else {
PianoArtist_t *curArtist = searchResult->artists;
while (curArtist->next != NULL) {
curArtist = curArtist->next;
}
curArtist->next = artist;
}
}
} else if (strcmp ("songs", key) == 0) {
for (curNode = ezxml_child (ezxml_get (value, "array", 0, "data", -1), "value");
curNode; curNode = curNode->next) {
if (PianoXmlParsePlaylistStruct (curNode, &searchResult->songs) !=
PIANO_RET_OK) {
break;
}
}
}
}
/* parses playlist; used when searching too
* @param piano handle
* @param xml document
* @param return: playlist
*/
PianoReturn_t PianoXmlParsePlaylist (PianoHandle_t *ph, char *xml,
PianoSong_t **retPlaylist) {
ezxml_t xmlDoc, dataNode;
PianoReturn_t ret = PIANO_RET_OK;
if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
return ret;
}
dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "array",
0, "data", -1);
for (dataNode = ezxml_child (dataNode, "value"); dataNode;
dataNode = dataNode->next) {
if ((ret = PianoXmlParsePlaylistStruct (dataNode, retPlaylist)) !=
PIANO_RET_OK) {
break;
}
}
ezxml_free (xmlDoc);
return ret;
}
