func (this *musicManager) DownloadSmallCoverImage(musicId int, callback DownloadProgressCallback) {
musicInfo, err := model.MusicModelInstance().QueryMusicById(musicId)
if musicInfo == nil {
var stop bool
callback(nil, errors.New("对应的musicID无音乐"), &stop)
return
} else if err != nil {
var stop bool
callback(nil, err, &stop)
return
}
fmt.Println("Download small cover image: " + musicInfo.MusicName)
switch musicInfo.SourceType {
case element.BaiduMusicSourceType:
downloadInfo := &DownloadElement{}
downloadInfo.DownloadType = DownloadTypeSingle
downloadInfo.DownloadContent = musicInfo.SmallCoverImagePath
downloadInfo.DownloadPath = cache.CacheManagerInstance().GenerateCacheFile()
downloadInfo.Progress = func(content []byte, err error, stop *bool) {
callback(content, err, stop)
}
downloadInfo.CompleteSignal = make(chan bool)
DownloadManagerInstance().AddDownloadInfoIntoQueue(downloadInfo)
<-downloadInfo.CompleteSignal
cache.CacheManagerInstance().DeleteCacheFile(downloadInfo.DownloadPath)
case element.LocalMusicSourceType:
content, err := this.readLocalFile(musicInfo.SmallCoverImagePath)
var stop bool
callback(content, err, &stop)
}
}
func (this *musicManager) DownloadMusic(musicId int, callback DownloadProgressCallback) {
musicInfo, err := model.MusicModelInstance().QueryMusicById(musicId)
if musicInfo == nil {
var stop bool
callback(nil, errors.New("对应的musicID无音乐"), &stop)
return
} else if err != nil {
var stop bool
callback(nil, err, &stop)
return
}
fmt.Println("Download Music: " + musicInfo.MusicName)
switch musicInfo.SourceType {
case element.BaiduMusicSourceType:
downloadInfo := &DownloadElement{}
downloadInfo.Complete = func(musicInfo *element.MusicInfo) {
fmt.Println("Download Success!")
// 下载完成，将文件拷贝到本地目录，然后删除缓存目录
// musicInfo.MusicPath = musicInfo.DownloadPath
localPath := fmt.Sprintf("./resource/%s/", musicInfo.MusicUUID)
cache.CacheManagerInstance().MoveCacheFile(downloadInfo.DownloadPath, localPath)
this.WriteMusicInfoIntoDB(musicInfo)
}
downloadInfo.Failed = func(musicInfo *element.MusicInfo, err error) {
cache.CacheManagerInstance().DeleteCacheFile(downloadInfo.DownloadPath)
}
musicInfo.MusicUUID = this.createUUID()
downloadInfo.DownloadPath = fmt.Sprintf("/tmp/%s", musicInfo.MusicUUID)
downloadInfo.DownloadType = DownloadTypeMusic
downloadInfo.DownloadContent = musicInfo
downloadInfo.Progress = func(content []byte, err error, stop *bool) {
callback(content, err, stop)
}
downloadInfo.CompleteSignal = make(chan bool)
DownloadManagerInstance().AddDownloadInfoIntoQueue(downloadInfo)
<-downloadInfo.CompleteSignal
case element.LocalMusicSourceType:
content, err := this.readLocalFile(musicInfo.MusicPath)
var stop bool
callback(content, err, &stop)
}
}