/// <summary>
/// 比较cache.txt文件获取差异ab资源
/// </summary>
public void CompareCacheFileGetDifferentAssetBundles(OnGetUpdateABCompleteHandel onComplete)
{
string cacheTxtFilePath = ABDataConfig.localABFullName + ABDataConfig.localCacheFileName;//沙盒cache文本路径
string cacheFileTxt = null;
if (File.Exists(cacheTxtFilePath))
{
DebugManager.LogWarning(cacheTxtFilePath + "沙盒cache文本存在！开始对比差异！");
//cacheTxtFilePath = Application.dataPath + ABDataConfig.localCacheFilePath;//本地cache文本路径
//TODO 沙盒下的应该解密读取
cacheFileTxt = File.ReadAllText(cacheTxtFilePath);
}
else
{
DebugManager.LogWarning(cacheTxtFilePath + "沙盒cache文本文件不存在！默认将服务器cache文本当做所有资源列表！");
}
string serverCacheUrl = ABDataConfig.GetAssetBundleUrl + ABDataConfig.abCacheFileApiName;//服务器cache文件路径
//下载服务器cache文件
Util.DownLoadFileText(serverCacheUrl, (serverCacheString) =>
{
serverCacheFileText = serverCacheString;//保存服务器cache文件
GetUpdateDownLoadAssetBundles(cacheFileTxt, serverCacheString);
onComplete(waitDownloadAssetBundleList);
}, this);
}
/// <summary>
/// 保存cache文件到沙盒路径在ab文件下载结束后
/// </summary>
public void SaveCacheFileOfAssetBundleDownloadOk()
{
if (!string.IsNullOrEmpty(serverCacheFileText))
{
string cacheFilePath = ABDataConfig.localABFullName + ABDataConfig.localCacheFileName;
FileManager.CreateFile(cacheFilePath, System.Text.Encoding.UTF8.GetBytes(serverCacheFileText));
DebugManager.LogWarning(cacheFilePath + "文件保存成功！");
cacheFilePath = null;
}
}
/// <summary>
/// 比较本地ab的cache.txt文件的文本与服务器的文本得出差异
/// 参数1：本地cache.txt文本 参数2：服务器cache.txt 文本
/// </summary>
private void GetUpdateDownLoadAssetBundles(string localCacheFileText, string serverCacheFileText)
{
if (string.IsNullOrEmpty(serverCacheFileText))
{
DebugManager.LogError("服务器 cache.txt 的文本存在空值！serverCacheFileText:" + serverCacheFileText);
return;
}
if (serverCacheFileText.Equals(localCacheFileText))
{
DebugManager.LogWarning("cache.txt 本地与服务器文本相同,不做比较，继续更新！ localCacheFileText:" + localCacheFileText + "serverCacheFileText:" + serverCacheFileText);
//return;
}
var serverCacheFileData = ResolveCacheFile(serverCacheFileText);//服务器cache.txt数据
//Dictionary<string, CacheFileDataModel> localCacheFileData = null;
//if (localCacheFileText == null)
//{
// localCacheFileData = new Dictionary<string, CacheFileDataModel>();
//}
//else
//{
// localCacheFileData = ResolveCacheFile(localCacheFileText);//本地cache.txt数据
//}
if (waitDownloadAssetBundleList == null)
{
waitDownloadAssetBundleList = new List <AssetBundleDownloadModel>();
}
//对比服务器与本地的数据
foreach (var v in serverCacheFileData)
{
var tempABData = AssetBundleDepFileManager.Instance.GetAssetBundleDataOfABFullName(v.Key); //dep.ll 文件中的ab信息
var tempFileUrl = ABDataConfig.localABFullName + tempABData.fullName; //源资源文件路径
//得到ab文件与ab依赖文件的哈希值组合
var tempFileHash = HashUtil.GetFileHash(tempFileUrl) + "|" + HashUtil.GetFileHash(tempFileUrl + ABDataConfig.assetBundleManifestFilePostfixName);
if (v.Value.fileHash.Equals(tempFileHash))
{
DebugManager.Log(tempABData.fullName + " " + v.Key + " 资源文件与依赖文件哈希值与服务器一致！不用更新！");
continue;
}
DebugManager.Log(tempABData.fullName + " " + v.Key + " 需要更新！添加到更新列表！");
waitDownloadAssetBundleList.Add(new AssetBundleDownloadModel
{
assetBundleFileName = tempABData.fullName,
assetBundleManifestFileName = tempABData.fullName + ABDataConfig.assetBundleManifestFilePostfixName,
assetBundleName = tempABData.debugName,
});
}
}
/// <summary>
/// 结束ab资源更新（注意：必须在ab资源全部更新完成后才能调用！）
/// </summary>
public void ExitUpdateAssetBundle()
{
//保存cache文件
AssetBundleCacheFileManager.Instance.SaveCacheFileOfAssetBundleDownloadOk();
//卸载dep manager
AssetBundleDepFileManager.DestroyInstance();
//卸载cache mananer
AssetBundleCacheFileManager.DestroyInstance();
//卸载abdownload manager
AssetBundleDownloadManager.DestroyInstance();
DebugManager.LogWarning("ab下载器卸载成功！");
}
/// <summary>
/// 初始化当前最新的dep.all ab列表
/// </summary>
private void InitDepList(string depFilePath)
{
curentDepFileReader = new AssetBundleDataReader();
using (FileStream fs = new FileStream(depFilePath, FileMode.Open, FileAccess.Read))
{
curentDepFileReader.Read(fs);
DebugManager.Log(depFilePath + " dep文件读取成功！读取到的ab资源个数为：" + curentDepFileReader.infoMap.Count);
curentDepFileABDataDic = new Dictionary <string, AssetBundleData>();
foreach (var v in curentDepFileReader.infoMap)
{
if (!curentDepFileABDataDic.ContainsKey(v.Value.debugName))
{
curentDepFileABDataDic.Add(v.Value.debugName, v.Value);
}
else
{
DebugManager.LogWarning("dep文件读取到的" + v.Value.debugName + "资源重复！");
}
}
}
}
/// <summary>
/// 任务下载器
/// </summary>
private IEnumerator DownloadTaskMangage(AssetBundleDownloadTaskModel task)
{
downloadTaskMangageState = true;//状态位标志
string downLoadUrl = ABDataConfig.GetAssetBundleUrl + ABDataConfig.getAssetBundleApiName;
DebugManager.Log("任务开始下载：" + task.ToString());
AssetBundleDownloadModel tempABModel = null;//中间变量
#region 遍历未下载列表资源，开启下载
for (int i = 0; i < task.downloadNOModels.Count; ++i)
{
tempABModel = task.downloadNOModels[i];
DownloadModel downModel = new DownloadModel();
//下载资源文件
task.taskMessage = "下载资源" + tempABModel.assetBundleFileName;
downModel.postDatas = System.Text.Encoding.UTF8.GetBytes(tempABModel.assetBundleFileName);
yield return(DownloadABFile(downLoadUrl, downModel));
tempABModel.assetBundleData = downModel.resultDatas;
//下载资源mainfest文件
task.taskMessage = "下载资源" + tempABModel.assetBundleManifestFileName;
downModel.postDatas = System.Text.Encoding.UTF8.GetBytes(tempABModel.assetBundleManifestFileName);
yield return(DownloadABFile(downLoadUrl, downModel));
tempABModel.assetBundleManifestData = downModel.resultDatas;
if (tempABModel != null && tempABModel.assetBundleManifestData != null && tempABModel.assetBundleData != null)
{
DebugManager.Log("资源：" + tempABModel.assetBundleName + "下载成功！准备写入本地文件！");
//TODO 写入文件
bool result = FileManager.CreateFile(ABDataConfig.localABFullName + tempABModel.assetBundleFileName, tempABModel.assetBundleData);
if (result)
{
result = FileManager.CreateFile(ABDataConfig.localABFullName + tempABModel.assetBundleManifestFileName, tempABModel.assetBundleManifestData);
}
if (result)
{
task.downloadOKModels.Add(tempABModel);//添加到成功队列中
}
else
{
DebugManager.Log("资源：" + tempABModel.assetBundleName + "下载成功，写入文件异常！");
task.downloadErrorModels.Add(tempABModel);//添加到失败队列中
}
}
else
{
DebugManager.Log("资源：" + tempABModel.assetBundleName + "下载异常！数据错误！");
task.downloadErrorModels.Add(tempABModel);//添加到失败队列中
}
task.downloadNOModels.RemoveAt(i--);//移出未下载队列
tempABModel = null;
}
#endregion
//判断任务是否成功或者失败
if (task.downloadErrorModels != null && task.downloadErrorModels.Count > 0)
{
DebugManager.LogWarning("任务：" + task.ToString() + "下载失败！");
task.taskState = TaskState.TaskError;
task.taskMessage = task.downloadErrorModels.Count + "个资源下载失败！重新下载！";
downloadErrorTasks.Enqueue(task);
}
else
{
DebugManager.LogWarning("任务：" + task.ToString() + "下载成功！");
task.taskState = TaskState.TaskOk;
task.taskMessage = "下载完成";
downloadSuccessTasks.Add(task);
}
//当前任务下载结束
downloadTaskMangageState = false;
}