void AssetsManager::loadLocalManifest(const std::string& manifestUrl)
{
// Prefer to use the cached manifest file, if not found use user configured manifest file
if (_fileUtils->isFileExist(_cacheManifestPath))
{
_localManifest->parse(_cacheManifestPath);
if (_localManifest->isLoaded())
prepareLocalManifest();
else
_fileUtils->removeFile(_cacheManifestPath);
}
// Fail to found or load cached manifest file
if (!_localManifest->isLoaded())
{
_localManifest->parse(_manifestUrl);
if (_localManifest->isLoaded())
prepareLocalManifest();
}
// Fail to load local manifest
if (!_localManifest->isLoaded())
{
CCLOG("AssetsManager : No local manifest file found error.\n");
dispatchUpdateEvent(EventAssetsManager::EventCode::ERROR_NO_LOCAL_MANIFEST);
}
}
void AssetsManagerEx::updateSucceed()
{
// Every thing is correctly downloaded, do the following
// 1. rename temporary manifest to valid manifest
std::string tempFileName = TEMP_MANIFEST_FILENAME;
std::string fileName = MANIFEST_FILENAME;
_fileUtils->renameFile(_tempStoragePath, tempFileName, fileName);
// 2. merge temporary storage path to storage path so that temporary version turns to cached version
if (_fileUtils->isDirectoryExist(_tempStoragePath))
{
// Merging all files in temp storage path to storage path
std::vector<std::string> files;
_fileUtils->listFilesRecursively(_tempStoragePath, &files);
int baseOffset = (int)_tempStoragePath.length();
std::string relativePath, dstPath;
for (std::vector<std::string>::iterator it = files.begin(); it != files.end(); ++it)
{
relativePath.assign((*it).substr(baseOffset));
dstPath.assign(_storagePath + relativePath);
// Create directory
if (relativePath.back() == '/')
{
_fileUtils->createDirectory(dstPath);
}
// Copy file
else
{
if (_fileUtils->isFileExist(dstPath))
{
_fileUtils->removeFile(dstPath);
}
_fileUtils->renameFile(*it, dstPath);
}
}
// Remove temp storage path
_fileUtils->removeDirectory(_tempStoragePath);
}
// 3. swap the localManifest
CC_SAFE_RELEASE(_localManifest);
_localManifest = _remoteManifest;
_localManifest->setManifestRoot(_storagePath);
_remoteManifest = nullptr;
// 4. make local manifest take effect
prepareLocalManifest();
// 5. Set update state
_updateState = State::UP_TO_DATE;
// 6. Notify finished event
dispatchUpdateEvent(EventAssetsManagerEx::EventCode::UPDATE_FINISHED);
}
void AssetsManager::updateSucceed()
{
// Every thing is correctly downloaded, do the following
// 1. rename temporary manifest to valid manifest
_fileUtils->renameFile(_storagePath, TEMP_MANIFEST_FILENAME, MANIFEST_FILENAME);
// 2. swap the localManifest
if (_localManifest != nullptr)
_localManifest->release();
_localManifest = _remoteManifest;
_remoteManifest = nullptr;
// 3. make local manifest take effect
prepareLocalManifest();
// 4. decompress all compressed files
decompressDownloadedZip();
// 5. Set update state
_updateState = State::UP_TO_DATE;
// 6. Notify finished event
dispatchUpdateEvent(EventAssetsManager::EventCode::UPDATE_FINISHED);
}
void AssetsManagerEx::loadLocalManifest(const std::string& /*manifestUrl*/)
{
Manifest *cachedManifest = nullptr;
// Find the cached manifest file
if (_fileUtils->isFileExist(_cacheManifestPath))
{
cachedManifest = new (std::nothrow) Manifest();
if (cachedManifest) {
cachedManifest->parse(_cacheManifestPath);
if (!cachedManifest->isLoaded())
{
_fileUtils->removeFile(_cacheManifestPath);
CC_SAFE_RELEASE(cachedManifest);
cachedManifest = nullptr;
}
}
}
// Ensure no search path of cached manifest is used to load this manifest
std::vector<std::string> searchPaths = _fileUtils->getSearchPaths();
if (cachedManifest)
{
std::vector<std::string> cacheSearchPaths = cachedManifest->getSearchPaths();
std::vector<std::string> trimmedPaths = searchPaths;
for (auto path : cacheSearchPaths)
{
const auto pos = std::find(trimmedPaths.begin(), trimmedPaths.end(), path);
if (pos != trimmedPaths.end())
{
trimmedPaths.erase(pos);
}
}
_fileUtils->setSearchPaths(trimmedPaths);
}
// Load local manifest in app package
_localManifest->parse(_manifestUrl);
if (cachedManifest) {
// Restore search paths
_fileUtils->setSearchPaths(searchPaths);
}
if (_localManifest->isLoaded())
{
// Compare with cached manifest to determine which one to use
if (cachedManifest) {
bool localNewer = _localManifest->versionGreater(cachedManifest, _versionCompareHandle);
if (localNewer)
{
// Recreate storage, to empty the content
_fileUtils->removeDirectory(_storagePath);
_fileUtils->createDirectory(_storagePath);
CC_SAFE_RELEASE(cachedManifest);
}
else
{
CC_SAFE_RELEASE(_localManifest);
_localManifest = cachedManifest;
}
}
prepareLocalManifest();
}
// Fail to load local manifest
if (!_localManifest->isLoaded())
{
CCLOG("AssetsManagerEx : No local manifest file found error.\n");
dispatchUpdateEvent(EventAssetsManagerEx::EventCode::ERROR_NO_LOCAL_MANIFEST);
}
}
