Java Code Examples for com.liulishuo.filedownloader.util.FileDownloadUtils#generateId()

/**
 * 将某个链接资源添加到下载的队列中
 * @param url               资源url
 * @param path              路径
 * @return                  model
 */
public TasksManagerModel addTask(final String url, final String path) {
    if (TextUtils.isEmpty(url) || TextUtils.isEmpty(path)) {
        return null;
    }
    //根据链接和地址查找对应id
    final int id = FileDownloadUtils.generateId(url, path);
    TasksManagerModel model = getById(id);
    if (model != null) {
        return model;
    }
    //天机到数据库
    final TasksManagerModel newModel = dbController.addTask(url, path);
    if (newModel != null) {
        modelList.add(newModel);
    }
    return newModel;
}
 

/**
 * 将文件音视频内容添加到数据库中
 * @param model                 model
 */
public void addDownloadedDb(DialogListBean model) {
    String url = model.getVideo();
    String path = TasksManager.getImpl().createPath(url);
    if (TextUtils.isEmpty(url) || TextUtils.isEmpty(path)) {
        return ;
    }
    final int id = FileDownloadUtils.generateId(url, path);
    TasksManagerModel bean = new TasksManagerModel();
    bean.setId(id);
    bean.setName(model.getName());
    bean.setUrl(url);
    bean.setUrl(path);
    modelListed.add(bean);
    dbController.addDownloadedDb(bean);
}
 

public TasksManagerModel addTask(final String url, final String path) {
    if (TextUtils.isEmpty(url) || TextUtils.isEmpty(path)) {
        return null;
    }

    final int id = FileDownloadUtils.generateId(url, path);
    TasksManagerModel model = getById(id);
    if (model != null) {
        return model;
    }
    final TasksManagerModel newModel = dbController.addTask(url, path);
    if (newModel != null) {
        modelList.add(newModel);
    }

    return newModel;
}
 

public TasksManagerModel addTask(final String url, final String path) {
    if (TextUtils.isEmpty(url) || TextUtils.isEmpty(path)) {
        return null;
    }

    // have to use FileDownloadUtils.generateId to associate TasksManagerModel with FileDownloader
    final int id = FileDownloadUtils.generateId(url, path);

    TasksManagerModel model = new TasksManagerModel();
    model.setId(id);
    model.setName(DemoApplication.CONTEXT.getString(R.string.tasks_manager_demo_name, id));
    model.setUrl(url);
    model.setPath(path);

    final boolean succeed = db.insert(TABLE_NAME, null, model.toContentValues()) != -1;
    return succeed ? model : null;
}
 

/**
 * 获取下载文件的下载id
 * @param url                   下载链接
 * @return                      下载id
 */
public int getId(String url) {
    if (TextUtils.isEmpty(url)){
        return -1 ;
    }
    return FileDownloadUtils.generateId(url, createPath(url));
}
 

/**
 * 添加到数据库
 * @param url                   下载链接
 * @param path                  下载路径
 * @return                      实体类model
 */
TasksManagerModel addTask(final String url, final String path) {
    if (TextUtils.isEmpty(url) || TextUtils.isEmpty(path)) {
        return null;
    }
    // 必须使用文件下载器，将TasksManagerModel与文件下载器关联
    final int id = FileDownloadUtils.generateId(url, path);
    TasksManagerModel model = new TasksManagerModel();
    model.setId(id);
    model.setName(url.substring(url.lastIndexOf("/")));
    model.setUrl(url);
    model.setPath(path);
    final boolean succeed = db.insert(TABLE_NAME, null, model.toContentValues()) != -1;
    return succeed ? model : null;
}
 

public int getId() {
    if (id != 0) {
        return id;
    }

    return id = FileDownloadUtils.generateId(getUrl(), getPath());
}
 

@Override
public int getId() {
    if (mId != 0) {
        return mId;
    }

    if (!TextUtils.isEmpty(mPath) && !TextUtils.isEmpty(mUrl)) {
        return mId = FileDownloadUtils.generateId(mUrl, mPath, mPathAsDirectory);
    }

    return 0;
}
 

private void checkupAfterGetFilename() throws RetryDirectly, DiscardSafely {
    final int id = model.getId();

    if (model.isPathAsDirectory()) {
        // this scope for caring about the case of there is another task is provided
        // the same path to store file and the same url.

        final String targetFilePath = model.getTargetFilePath();

        // get the ID after got the filename.
        final int fileCaseId = FileDownloadUtils.generateId(model.getUrl(),
                targetFilePath);

        // whether the file with the filename has been existed.
        if (FileDownloadHelper.inspectAndInflowDownloaded(id,
                targetFilePath, isForceReDownload, false)) {
            database.remove(id);
            database.removeConnections(id);
            throw new DiscardSafely();
        }

        final FileDownloadModel fileCaseModel = database.find(fileCaseId);

        if (fileCaseModel != null) {
            // the task with the same file name and url has been exist.

            // whether the another task with the same file and url is downloading.
            if (FileDownloadHelper.inspectAndInflowDownloading(id, fileCaseModel,
                    threadPoolMonitor, false)) {
                //it has been post to upper layer the 'warn' message, so the current
                // task no need to continue download.
                database.remove(id);
                database.removeConnections(id);
                throw new DiscardSafely();
            }

            final List<ConnectionModel> connectionModelList = database
                    .findConnectionModel(fileCaseId);

            // the another task with the same file name and url is paused
            database.remove(fileCaseId);
            database.removeConnections(fileCaseId);
            FileDownloadUtils.deleteTargetFile(model.getTargetFilePath());

            if (FileDownloadUtils.isBreakpointAvailable(fileCaseId, fileCaseModel)) {
                model.setSoFar(fileCaseModel.getSoFar());
                model.setTotal(fileCaseModel.getTotal());
                model.setETag(fileCaseModel.getETag());
                model.setConnectionCount(fileCaseModel.getConnectionCount());
                database.update(model);

                // re connect to resume from breakpoint.
                if (connectionModelList != null) {
                    for (ConnectionModel connectionModel : connectionModelList) {
                        connectionModel.setId(id);
                        database.insertConnectionModel(connectionModel);
                    }
                }

                // retry
                throw new RetryDirectly();
            }
        }

        // whether there is an another running task with the same target-file-path.
        if (FileDownloadHelper.inspectAndInflowConflictPath(id, model.getSoFar(),
                model.getTempFilePath(),
                targetFilePath,
                threadPoolMonitor)) {
            database.remove(id);
            database.removeConnections(id);

            throw new DiscardSafely();
        }
    }
}