Package org.apache.lucene.misc.store

Class ByteWritesTrackingDirectoryWrapper

java.lang.Object

org.apache.lucene.store.Directory

org.apache.lucene.store.FilterDirectory

org.apache.lucene.misc.store.ByteWritesTrackingDirectoryWrapper

All Implemented Interfaces:

Closeable, AutoCloseable

public final class ByteWritesTrackingDirectoryWrapper
extends FilterDirectory

FilterDirectory that tracks write amplification factor

Field Summary

Fields

Modifier and Type	Field	Description
boolean	trackTempOutput

Fields inherited from class org.apache.lucene.store.FilterDirectory

in

Constructor Summary

Constructors

Constructor	Description
ByteWritesTrackingDirectoryWrapper(Directory in)
ByteWritesTrackingDirectoryWrapper(Directory in, boolean trackTempOutput)	Constructor with option to track tempOutput

Method Summary

Modifier and Type	Method	Description
IndexOutput	createOutput(String name, IOContext ioContext)
IndexOutput	createTempOutput(String prefix, String suffix, IOContext ioContext)
long	getFlushedBytes()
long	getMergedBytes()

Methods inherited from class org.apache.lucene.store.FilterDirectory

close, deleteFile, ensureOpen, fileLength, getDelegate, getPendingDeletions, listAll, obtainLock, openInput, rename, sync, syncMetaData, toString, unwrap

Methods inherited from class org.apache.lucene.store.Directory

copyFrom, getTempFileName, openChecksumInput

Methods inherited from class java.lang.Object

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

Field Detail

trackTempOutput

public final boolean trackTempOutput

Constructor Detail

ByteWritesTrackingDirectoryWrapper

public ByteWritesTrackingDirectoryWrapper(Directory in)

ByteWritesTrackingDirectoryWrapper

public ByteWritesTrackingDirectoryWrapper(Directory in,
                                          boolean trackTempOutput)

Constructor with option to track tempOutput

Parameters:

in - input Directory

trackTempOutput - if true, will also track temporary outputs created by this directory

Method Detail

createOutput

public IndexOutput createOutput(String name,
                                IOContext ioContext)
                         throws IOException

Overrides:

createOutput in class FilterDirectory

Throws:

IOException

createTempOutput

public IndexOutput createTempOutput(String prefix,
                                    String suffix,
                                    IOContext ioContext)
                             throws IOException

Overrides:

createTempOutput in class FilterDirectory

Throws:

IOException

getFlushedBytes

public long getFlushedBytes()

getMergedBytes

public long getMergedBytes()