org.apache.iotdb.db.sync.sender.manage

接口 ISyncFileManager

所有已知实现类:

SyncFileManager

public interface ISyncFileManager

This interface is used to manage deleted files and new closed files that need to be synchronized in each sync task.

方法概要

限定符和类型	方法和说明
Map<String,Map<Long,Set<Long>>>	getAllSGs()
void	getCurrentLocalFiles(String dataDir) Find out all closed and unmodified files, which means there has a .resource file and doesn't have a .mod file and .merge file.
Map<String,Map<Long,Map<Long,Set<File>>>>	getCurrentSealedLocalFilesMap()
Map<String,Map<Long,Map<Long,Set<File>>>>	getDeletedFilesMap()
void	getLastLocalFiles(File lastLocalFile) Load last local files from file which does not contain those tsfiles which are not synced successfully in previous sync tasks.
Map<String,Map<Long,Map<Long,Set<File>>>>	getLastLocalFilesMap()
Map<String,Map<Long,Map<Long,Set<File>>>>	getToBeSyncedFilesMap()
void	getValidFiles(String dataDir) Based on current local files and last local files, we can distinguish two kinds of files between them, one is deleted files, the other is new files.

方法详细资料

getCurrentLocalFiles

void getCurrentLocalFiles(String dataDir)

Find out all closed and unmodified files, which means there has a .resource file and doesn't have a .mod file and .merge file. For these files, they will eventually generate a new tsfile file as the merge operation is executed and executed in subsequent synchronization tasks.

参数:

dataDir - data directory

getLastLocalFiles

void getLastLocalFiles(File lastLocalFile)
                throws IOException

Load last local files from file which does not contain those tsfiles which are not synced successfully in previous sync tasks.

参数:

lastLocalFile - last local file, which may not exist in first sync task.

抛出:

IOException

getValidFiles

void getValidFiles(String dataDir)
            throws IOException

Based on current local files and last local files, we can distinguish two kinds of files between them, one is deleted files, the other is new files. These two kinds of files are valid files that need to be synchronized to the receiving end.

参数:

dataDir - data directory

抛出:

IOException

getCurrentSealedLocalFilesMap

Map<String,Map<Long,Map<Long,Set<File>>>> getCurrentSealedLocalFilesMap()

getLastLocalFilesMap

Map<String,Map<Long,Map<Long,Set<File>>>> getLastLocalFilesMap()

getDeletedFilesMap

Map<String,Map<Long,Map<Long,Set<File>>>> getDeletedFilesMap()

getToBeSyncedFilesMap

Map<String,Map<Long,Map<Long,Set<File>>>> getToBeSyncedFilesMap()

getAllSGs

Map<String,Map<Long,Set<Long>>> getAllSGs()