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package com.keuin.kbackupfabric.ui;
import org.jetbrains.annotations.NotNull;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.Iterator;
/**
* Holding all types of backups for the user interaction logic.
*/
public class BackupManager {
private final File backupStorageDirectory;
public BackupManager(File backupStorageDirectory) {
this.backupStorageDirectory = backupStorageDirectory;
}
public BackupManager(String backupStorageDirectory) {
this.backupStorageDirectory = new File(backupStorageDirectory);
}
/**
* Get available backups in the disk.
*
* @return all backups.
*/
public Iterable<BackupInfo> getAllBackups() {
return new Iterable<BackupInfo>() {
@NotNull
@Override
public Iterator<BackupInfo> iterator() {
return new Iterator<BackupInfo>() {
private final Iterator<File> fileIterator = Arrays.stream(backupStorageDirectory.listFiles()).filter(file -> {
String name = file.getName().toLowerCase();
return name.endsWith(".zip") || name.endsWith(".kbi");
}).iterator();
@Override
public boolean hasNext() {
return fileIterator.hasNext();
}
@Override
public BackupInfo next() {
try {
File backupFile = fileIterator.next();
String fileName = backupFile.getName().toLowerCase();
if (fileName.endsWith(".zip"))
return PrimitiveBackupInfo.fromFile(backupFile);
if (fileName.endsWith(".kbi"))
return IncrementalBackupInfo.fromFile(backupFile);
throw new RuntimeException("Invalid backup file extname");
} catch (IOException e) {
throw new RuntimeException(e);
}
}
};
}
};
}
}
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