java.lang.Object
- org.apache.iotdb.db.tools.settle.TsFileAndModSettleTool

```
public class TsFileAndModSettleTool
extends java.lang.Object
```
Offline Settle tool, which is used to settle TsFile and its corresponding mods file to a new TsFile.

Field Summary

Fields
Modifier and Type Field Description

java.util.Map<java.lang.String,java.lang.Integer> recoverSettleFileMap

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static java.util.List<java.io.File>`	`checkArgs(java.lang.String[] args)`
`static void`	`clearRecoverSettleFileMap()`
`static void`	`findFilesToBeRecovered()`
`java.util.List<TsFileResource>`	`findSettledFile(TsFileResource resourceToBeSettled)`	when the new file is settled , we need to find and deserialize it.
`static TsFileAndModSettleTool`	`getInstance()`
`boolean`	`isSettledFileGenerated(TsFileResource oldTsFileResource)`	this method is used to check whether the new file is settled when recovering old tsFile.
`static void`	`main(java.lang.String[] args)`
`static void`	`moveNewTsFile(TsFileResource oldTsFileResource, java.util.List<TsFileResource> newTsFileResources)`	This method is used to move a new TsFile and its corresponding resource file to the correct folder.
`void`	`settleOneTsFileAndMod(TsFileResource resourceToBeSettled, java.util.List<TsFileResource> settledResources)`	The size of settledResources will be 0 in one of the following conditions: (1) old TsFile is not closed (2) old ModFile is not existed (3) all data in the old tsfile is being deleted after settling
`static void`	`settleTsFilesAndMods(java.util.Map<java.lang.String,TsFileResource> resourcesToBeSettled)`	This method is used to settle tsFiles and mods files, so that each old TsFile corresponds to one or several new TsFiles.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

recoverSettleFileMap

public java.util.Map<java.lang.String,java.lang.Integer> recoverSettleFileMap

Method Detail

getInstance

public static TsFileAndModSettleTool getInstance()

main

public static void main(java.lang.String[] args)

checkArgs

public static java.util.List<java.io.File> checkArgs(java.lang.String[] args)

settleTsFilesAndMods
```
public static void settleTsFilesAndMods(java.util.Map<java.lang.String,TsFileResource> resourcesToBeSettled)
```
This method is used to settle tsFiles and mods files, so that each old TsFile corresponds to one or several new TsFiles. This method is only applicable to V3 TsFile. Each old TsFile corresponds to one or several new TsFileResources of the new TsFiles

settleOneTsFileAndMod

public void settleOneTsFileAndMod(TsFileResource resourceToBeSettled,
                                  java.util.List<TsFileResource> settledResources)
                           throws org.apache.iotdb.tsfile.exception.write.WriteProcessException,
                                  org.apache.iotdb.commons.exception.IllegalPathException,
                                  java.io.IOException

The size of settledResources will be 0 in one of the following conditions: (1) old TsFile is not closed (2) old ModFile is not existed (3) all data in the old tsfile is being deleted after settling

Throws:: org.apache.iotdb.tsfile.exception.write.WriteProcessException; org.apache.iotdb.commons.exception.IllegalPathException; java.io.IOException

findFilesToBeRecovered

public static void findFilesToBeRecovered()

isSettledFileGenerated
```
public boolean isSettledFileGenerated(TsFileResource oldTsFileResource)
```
this method is used to check whether the new file is settled when recovering old tsFile.

findSettledFile

public java.util.List<TsFileResource> findSettledFile(TsFileResource resourceToBeSettled)
                                               throws java.io.IOException

when the new file is settled , we need to find and deserialize it.

Throws:: java.io.IOException

moveNewTsFile
```
public static void moveNewTsFile(TsFileResource oldTsFileResource,
                                 java.util.List<TsFileResource> newTsFileResources)
                          throws java.io.IOException
```
This method is used to move a new TsFile and its corresponding resource file to the correct folder.

Parameters:

oldTsFileResource -

newTsFileResources - if the old TsFile has not any deletions or all the data in which has been deleted or its modFile does not exist, then this size will be 0.

Throws:

java.io.IOException

clearRecoverSettleFileMap

public static void clearRecoverSettleFileMap()

Class TsFileAndModSettleTool

Field Summary