Package org.apache.solr.core.backup

Class BackupManager

java.lang.Object

org.apache.solr.core.backup.BackupManager

public class BackupManager
extends Object

This class implements functionality to create a backup with extension points provided to integrate with different types of file-systems.

Field Summary

Fields

Modifier and Type	Field	Description
static String	BACKUP_NAME_PROP
protected BackupId	backupId
protected URI	backupPath
static String	COLLECTION_ALIAS_PROP
static String	COLLECTION_NAME_PROP
static String	COLLECTION_PROPS_FILE
static String	CONFIG_STATE_DIR
static String	END_TIME_PROP
protected String	existingPropsFile
static String	INDEX_VERSION_PROP
protected BackupRepository	repository
static String	START_TIME_PROP
static String	TRADITIONAL_BACKUP_PROPS_FILE
static String	ZK_STATE_DIR
protected ZkStateReader	zkStateReader

Method Summary

Modifier and Type	Method	Description
void	downloadCollectionProperties(String collectionName)
void	downloadConfigDir(String configName, ConfigSetService configSetService)	This method stores the contents of a specified Solr config at the specified location in repository.
static BackupManager	forBackup(BackupRepository repository, ZkStateReader stateReader, URI backupPath)
static BackupManager	forIncrementalBackup(BackupRepository repository, ZkStateReader stateReader, URI backupPath)
static BackupManager	forRestore(BackupRepository repository, ZkStateReader stateReader, URI backupPath)
static BackupManager	forRestore(BackupRepository repository, ZkStateReader stateReader, URI backupPath, int bid)
BackupId	getBackupId()
String	getVersion()
BackupProperties	readBackupProperties()	This method returns the configuration parameters for the specified backup.
DocCollection	readCollectionState(String collectionName)	This method reads the meta-data information for the backed-up collection.
Optional<BackupProperties>	tryReadBackupProperties()
void	uploadCollectionProperties(String collectionName)
void	uploadConfigDir(String sourceConfigName, String targetConfigName, ConfigSetService configSetService)	This method uploads the Solr configuration files to the desired location in Zookeeper.
void	writeBackupProperties(BackupProperties props)	This method stores the backup properties at the specified location in the repository.
void	writeCollectionState(String collectionName, DocCollection collectionState)	This method writes the collection meta-data to the specified location in the repository.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

COLLECTION_PROPS_FILE

public static final String COLLECTION_PROPS_FILE

See Also:

Constant Field Values

TRADITIONAL_BACKUP_PROPS_FILE

public static final String TRADITIONAL_BACKUP_PROPS_FILE

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Constant Field Values

ZK_STATE_DIR

public static final String ZK_STATE_DIR

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Constant Field Values

CONFIG_STATE_DIR

public static final String CONFIG_STATE_DIR

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Constant Field Values

COLLECTION_NAME_PROP

public static final String COLLECTION_NAME_PROP

See Also:

Constant Field Values

COLLECTION_ALIAS_PROP

public static final String COLLECTION_ALIAS_PROP

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Constant Field Values

BACKUP_NAME_PROP

public static final String BACKUP_NAME_PROP

See Also:

Constant Field Values

INDEX_VERSION_PROP

public static final String INDEX_VERSION_PROP

See Also:

Constant Field Values

START_TIME_PROP

public static final String START_TIME_PROP

See Also:

Constant Field Values

END_TIME_PROP

public static final String END_TIME_PROP

See Also:

Constant Field Values

zkStateReader

protected final ZkStateReader zkStateReader

repository

protected final BackupRepository repository

backupId

protected final BackupId backupId

backupPath

protected final URI backupPath

existingPropsFile

protected final String existingPropsFile

Method Detail

forIncrementalBackup

public static BackupManager forIncrementalBackup(BackupRepository repository,
                                                 ZkStateReader stateReader,
                                                 URI backupPath)

forBackup

public static BackupManager forBackup(BackupRepository repository,
                                      ZkStateReader stateReader,
                                      URI backupPath)

forRestore

public static BackupManager forRestore(BackupRepository repository,
                                       ZkStateReader stateReader,
                                       URI backupPath,
                                       int bid)
                                throws IOException

Throws:

IOException

forRestore

public static BackupManager forRestore(BackupRepository repository,
                                       ZkStateReader stateReader,
                                       URI backupPath)
                                throws IOException

Throws:

IOException

getBackupId

public final BackupId getBackupId()

getVersion

public final String getVersion()

Returns:

The version of this backup implementation.

readBackupProperties

public BackupProperties readBackupProperties()
                                      throws IOException

This method returns the configuration parameters for the specified backup.

Returns:

the configuration parameters for the specified backup.

Throws:

IOException - In case of errors.

tryReadBackupProperties

public Optional<BackupProperties> tryReadBackupProperties()
                                                   throws IOException

Throws:

IOException

writeBackupProperties

public void writeBackupProperties(BackupProperties props)
                           throws IOException

This method stores the backup properties at the specified location in the repository.

Parameters:

props - The backup properties

Throws:

IOException - in case of I/O error

readCollectionState

public DocCollection readCollectionState(String collectionName)
                                  throws IOException

This method reads the meta-data information for the backed-up collection.

Parameters:

collectionName - The name of the collection whose meta-data is to be returned.

Returns:

the meta-data information for the backed-up collection.

Throws:

IOException - in case of errors.

writeCollectionState

public void writeCollectionState(String collectionName,
                                 DocCollection collectionState)
                          throws IOException

This method writes the collection meta-data to the specified location in the repository.

Parameters:

collectionName - The name of the collection whose meta-data is being stored.

collectionState - The collection meta-data to be stored.

Throws:

IOException - in case of I/O errors.

uploadConfigDir

public void uploadConfigDir(String sourceConfigName,
                            String targetConfigName,
                            ConfigSetService configSetService)
                     throws IOException

This method uploads the Solr configuration files to the desired location in Zookeeper.

Parameters:

sourceConfigName - The name of the config to be copied

targetConfigName - The name of the config to be created.

configSetService - The name of the configset used to upload the config

Throws:

IOException - in case of I/O errors.

downloadConfigDir

public void downloadConfigDir(String configName,
                              ConfigSetService configSetService)
                       throws IOException

This method stores the contents of a specified Solr config at the specified location in repository.

Parameters:

configName - The name of the config to be saved.

configSetService - The name of the configset used to download the config

Throws:

IOException - in case of I/O errors.

uploadCollectionProperties

public void uploadCollectionProperties(String collectionName)
                                throws IOException

Throws:

IOException

downloadCollectionProperties

public void downloadCollectionProperties(String collectionName)
                                  throws IOException

Throws:

IOException