mirror of https://github.com/axmolengine/axmol.git
333 lines
11 KiB
C++
333 lines
11 KiB
C++
/****************************************************************************
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Copyright (c) 2013 cocos2d-x.org
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __AssetsManagerEx__
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#define __AssetsManagerEx__
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#include <string>
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#include <unordered_map>
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#include <vector>
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#include "base/CCEventDispatcher.h"
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#include "platform/CCFileUtils.h"
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#include "network/CCDownloader.h"
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#include "CCEventAssetsManagerEx.h"
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#include "Manifest.h"
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#include "extensions/ExtensionMacros.h"
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#include "extensions/ExtensionExport.h"
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#include "rapidjson/document-wrapper.h"
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struct zlib_filefunc_def_s;
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NS_CC_EXT_BEGIN
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/**
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* @brief This class is used to auto update resources, such as pictures or scripts.
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*/
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class CC_EX_DLL AssetsManagerEx : public Ref
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{
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public:
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//! Update states
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enum class State
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{
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UNCHECKED,
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PREDOWNLOAD_VERSION,
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DOWNLOADING_VERSION,
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VERSION_LOADED,
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PREDOWNLOAD_MANIFEST,
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DOWNLOADING_MANIFEST,
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MANIFEST_LOADED,
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NEED_UPDATE,
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UPDATING,
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UNZIPPING,
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UP_TO_DATE,
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FAIL_TO_UPDATE
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};
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const static std::string VERSION_ID;
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const static std::string MANIFEST_ID;
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/** @brief Create function for creating a new AssetsManagerEx
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@param manifestUrl The url for the local manifest file
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@param storagePath The storage path for downloaded assets
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@warning The cached manifest in your storage path have higher priority and will be searched first,
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only if it doesn't exist, AssetsManagerEx will use the given manifestUrl.
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*/
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static AssetsManagerEx* create(const std::string &manifestUrl, const std::string &storagePath);
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/** @brief Check out if there is a new version of manifest.
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* You may use this method before updating, then let user determine whether
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* he wants to update resources.
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*/
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void checkUpdate();
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/** @brief Update with the current local manifest.
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*/
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void update();
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/** @brief Reupdate all failed assets under the current AssetsManagerEx context
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*/
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void downloadFailedAssets();
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/** @brief Gets the current update state.
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*/
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State getState() const;
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/** @brief Gets storage path.
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*/
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const std::string& getStoragePath() const;
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/** @brief Function for retrieving the local manifest object
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*/
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const Manifest* getLocalManifest() const;
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/** @brief Function for retrieving the remote manifest object
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*/
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const Manifest* getRemoteManifest() const;
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/** @brief Function for retrieving the max concurrent task count
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*/
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const int getMaxConcurrentTask() const {return _maxConcurrentTask;};
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/** @brief Function for setting the max concurrent task count
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*/
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void setMaxConcurrentTask(const int max) {_maxConcurrentTask = max;};
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/** @brief Set the handle function for comparing manifests versions
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* @param handle The compare function
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*/
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void setVersionCompareHandle(const std::function<int(const std::string& versionA, const std::string& versionB)>& handle) {_versionCompareHandle = handle;};
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/** @brief Set the verification function for checking whether downloaded asset is correct, e.g. using md5 verification
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* @param callback The verify callback function
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*/
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void setVerifyCallback(const std::function<bool(const std::string& path, Manifest::Asset asset)>& callback) {_verifyCallback = callback;};
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CC_CONSTRUCTOR_ACCESS:
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AssetsManagerEx(const std::string& manifestUrl, const std::string& storagePath);
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virtual ~AssetsManagerEx();
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protected:
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std::string basename(const std::string& path) const;
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std::string get(const std::string& key) const;
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void initManifests(const std::string& manifestUrl);
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void loadLocalManifest(const std::string& manifestUrl);
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void prepareLocalManifest();
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void setStoragePath(const std::string& storagePath);
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void adjustPath(std::string &path);
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void dispatchUpdateEvent(EventAssetsManagerEx::EventCode code, const std::string &message = "", const std::string &assetId = "", int curle_code = 0, int curlm_code = 0);
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void downloadVersion();
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void parseVersion();
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void downloadManifest();
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void parseManifest();
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void startUpdate();
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void updateSucceed();
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bool decompress(const std::string &filename);
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void decompressDownloadedZip(const std::string &customId, const std::string &storagePath);
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/** @brief Update a list of assets under the current AssetsManagerEx context
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*/
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void updateAssets(const DownloadUnits& assets);
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/** @brief Retrieve all failed assets during the last update
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*/
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const DownloadUnits& getFailedAssets() const;
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/** @brief Function for destroying the downloaded version file and manifest file
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*/
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void destroyDownloadedVersion();
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/** @brief Download items in queue with max concurrency setting
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*/
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void queueDowload();
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void fileError(const std::string& identifier, const std::string& errorStr, int errorCode = 0, int errorCodeInternal = 0);
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void fileSuccess(const std::string &customId, const std::string &storagePath);
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/** @brief Call back function for error handling,
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the error will then be reported to user's listener registed in addUpdateEventListener
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@param error The error object contains ErrorCode, message, asset url, asset key
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@warning AssetsManagerEx internal use only
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* @js NA
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* @lua NA
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*/
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virtual void onError(const network::DownloadTask& task,
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int errorCode,
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int errorCodeInternal,
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const std::string& errorStr);
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/** @brief Call back function for recording downloading percent of the current asset,
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the progression will then be reported to user's listener registed in addUpdateProgressEventListener
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@param total Total size to download for this asset
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@param downloaded Total size already downloaded for this asset
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@param url The url of this asset
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@param customId The key of this asset
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@warning AssetsManagerEx internal use only
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* @js NA
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* @lua NA
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*/
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virtual void onProgress(double total, double downloaded, const std::string &url, const std::string &customId);
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/** @brief Call back function for success of the current asset
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the success event will then be send to user's listener registed in addUpdateEventListener
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@param srcUrl The url of this asset
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@param customId The key of this asset
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@warning AssetsManagerEx internal use only
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* @js NA
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* @lua NA
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*/
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virtual void onSuccess(const std::string &srcUrl, const std::string &storagePath, const std::string &customId);
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private:
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void batchDownload();
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// Called when one DownloadUnits finished
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void onDownloadUnitsFinished();
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void fillZipFunctionOverrides(zlib_filefunc_def_s &zipFunctionOverrides);
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//! The event of the current AssetsManagerEx in event dispatcher
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std::string _eventName;
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//! Reference to the global event dispatcher
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EventDispatcher *_eventDispatcher;
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//! Reference to the global file utils
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FileUtils *_fileUtils;
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//! State of update
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State _updateState = State::UNCHECKED;
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//! Downloader
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std::shared_ptr<network::Downloader> _downloader;
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//! The reference to the local assets
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const std::unordered_map<std::string, Manifest::Asset> *_assets = nullptr;
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//! The path to store successfully downloaded version.
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std::string _storagePath;
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//! The path to store downloading version.
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std::string _tempStoragePath;
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//! The local path of cached temporary version file
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std::string _tempVersionPath;
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//! The local path of cached manifest file
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std::string _cacheManifestPath;
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//! The local path of cached temporary manifest file
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std::string _tempManifestPath;
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//! The path of local manifest file
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std::string _manifestUrl;
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//! Local manifest
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Manifest *_localManifest = nullptr;
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//! Local temporary manifest for download resuming
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Manifest *_tempManifest = nullptr;
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//! Remote manifest
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Manifest *_remoteManifest = nullptr;
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//! Whether user have requested to update
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enum class UpdateEntry : char
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{
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NONE,
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CHECK_UPDATE,
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DO_UPDATE
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};
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UpdateEntry _updateEntry = UpdateEntry::NONE;
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//! All assets unit to download
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DownloadUnits _downloadUnits;
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//! All failed units
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DownloadUnits _failedUnits;
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//! Download queue
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std::vector<std::string> _queue;
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//! Max concurrent task count for downloading
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int _maxConcurrentTask = 32;
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//! Current concurrent task count
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int _currConcurrentTask = 0;
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//! Download percent
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float _percent = 0.f;
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//! Download percent by file
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float _percentByFile = 0.f;
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//! Indicate whether the total size should be enabled
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int _totalEnabled;
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//! Indicate the number of file whose total size have been collected
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int _sizeCollected;
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//! Total file size need to be downloaded (sum of all file)
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double _totalSize;
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//! Downloaded size for each file
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std::unordered_map<std::string, double> _downloadedSize;
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//! Total number of assets to download
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int _totalToDownload = 0;
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//! Total number of assets still waiting to be downloaded
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int _totalWaitToDownload = 0;
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//! Next target percent for saving the manifest file
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float _nextSavePoint = 0.f;
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//! Handle function to compare versions between different manifests
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std::function<int(const std::string& versionA, const std::string& versionB)> _versionCompareHandle = nullptr;
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//! Callback function to verify the downloaded assets
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std::function<bool(const std::string& path, Manifest::Asset asset)> _verifyCallback = nullptr;
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//! Marker for whether the assets manager is inited
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bool _inited = false;
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};
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NS_CC_EXT_END
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#endif /* defined(__AssetsManagerEx__) */
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