Package org.apache.solr.core.backup.repository

Class AbstractBackupRepository

java.lang.Object

org.apache.solr.core.backup.repository.AbstractBackupRepository

All Implemented Interfaces:

Closeable, AutoCloseable, BackupRepository, NamedListInitializedPlugin

Direct Known Subclasses:

DelegatingBackupRepository, LocalFileSystemRepository

public abstract class AbstractBackupRepository
extends Object
implements BackupRepository

Abstract BackupRepository implementation providing some logic shared between real implementations.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.solr.core.backup.repository.BackupRepository

BackupRepository.PathType

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.solr.common.util.NamedList<?>	config
static final String	PARAM_VERIFY_CHECKSUM	Plugin initialization parameter to define whether the BackupRepository should verify the checksum before copying index files.
protected boolean	shouldVerifyChecksum

Constructor Summary

Constructors

Constructor	Description
AbstractBackupRepository()

Method Summary

Modifier and Type	Method	Description
void	copyIndexFileFrom(org.apache.lucene.store.Directory sourceDir, String sourceFileName, org.apache.lucene.store.Directory destDir, String destFileName)	Copies an index file from a specified Directory to a destination Directory.
protected static boolean	getBooleanConfig(org.apache.solr.common.util.NamedList<?> args, String param, boolean defaultValue)
void	init(org.apache.solr.common.util.NamedList<?> args)	init will be called just once, immediately after creation.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.solr.core.backup.repository.BackupRepository

checksum, copyFileFrom, copyFileNoChecksum, copyFileTo, copyIndexFileFrom, copyIndexFileTo, createDirectory, createDirectoryURI, createOutput, createURI, delete, deleteDirectory, exists, getBackupLocation, getConfigProperty, getPathType, listAll, listAllOrEmpty, openInput, resolve, resolveDirectory

Methods inherited from interface java.io.Closeable

close

Field Details

PARAM_VERIFY_CHECKSUM

public static final String PARAM_VERIFY_CHECKSUM

Plugin initialization parameter to define whether the BackupRepository should verify the checksum before copying index files. Defaults to true.

If the checksum cannot be verified in the standard Lucene way (CodecUtil.checkFooter(org.apache.lucene.store.ChecksumIndexInput), then this parameter can be set to false, and the checksum should be verified in a specific way.

See Also:

• Constant Field Values

config

protected org.apache.solr.common.util.NamedList<?> config

shouldVerifyChecksum

protected boolean shouldVerifyChecksum

Constructor Details

AbstractBackupRepository

public AbstractBackupRepository()

Method Details

init

public void init(org.apache.solr.common.util.NamedList<?> args)

Description copied from interface: NamedListInitializedPlugin

init will be called just once, immediately after creation.

Source of the initialization arguments will typically be solrconfig.xml, but will ultimately depends on the plugin itself

Specified by:

init in interface NamedListInitializedPlugin

Parameters:

args - non-null list of initialization parameters (may be empty)

copyIndexFileFrom

public void copyIndexFileFrom(org.apache.lucene.store.Directory sourceDir,
 String sourceFileName,
 org.apache.lucene.store.Directory destDir,
 String destFileName)
                       throws IOException

Copies an index file from a specified Directory to a destination Directory. Also verifies the checksum unless PARAM_VERIFY_CHECKSUM was false in the init(NamedList) arguments.

Specified by:

copyIndexFileFrom in interface BackupRepository

Parameters:

sourceDir - The source directory hosting the file to be copied.

sourceFileName - The name of the file to be copied

destDir - The destination directory.

Throws:

org.apache.lucene.index.CorruptIndexException - in case checksum of the file does not match with precomputed checksum stored at the end of the file

IOException

getBooleanConfig

protected static boolean getBooleanConfig(org.apache.solr.common.util.NamedList<?> args,
 String param,
 boolean defaultValue)