Package org.apache.lucene.misc.store
Class WindowsDirectory
- java.lang.Object
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- org.apache.lucene.store.Directory
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- org.apache.lucene.store.BaseDirectory
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- org.apache.lucene.store.FSDirectory
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- org.apache.lucene.misc.store.WindowsDirectory
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
public class WindowsDirectory extends FSDirectory
NativeDirectory
implementation for Microsoft Windows.Steps:
- Compile the source code to create libLuceneNativeIO.dll:
./gradlew build
- Put the resulting
libLuceneNativeIO.dll
(fromlucene/misc/native/build/lib/release/platform/
) into some directory in your windows PATH - Open indexes with WindowsDirectory and use it.
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Nested Class Summary
Nested Classes Modifier and Type Class Description (package private) static class
WindowsDirectory.WindowsIndexInput
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Field Summary
Fields Modifier and Type Field Description private static int
DEFAULT_BUFFERSIZE
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Fields inherited from class org.apache.lucene.store.FSDirectory
directory
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Fields inherited from class org.apache.lucene.store.BaseDirectory
isOpen, lockFactory
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Constructor Summary
Constructors Constructor Description WindowsDirectory(java.nio.file.Path path)
Create a new WindowsDirectory for the named location andFSLockFactory.getDefault()
.WindowsDirectory(java.nio.file.Path path, LockFactory lockFactory)
Create a new WindowsDirectory for the named location.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description private static void
close(long fd)
Closes a handle to a fileprivate static long
length(long fd)
Returns the length of a fileprivate static long
open(java.lang.String filename)
Opens a handle to a file.IndexInput
openInput(java.lang.String name, IOContext context)
Opens a stream for reading an existing file.private static int
read(long fd, byte[] bytes, int offset, int length, long pos)
Reads data from a file at pos into bytes-
Methods inherited from class org.apache.lucene.store.FSDirectory
close, createOutput, createTempOutput, deleteFile, deletePendingFiles, ensureCanRead, fileLength, fsync, getDirectory, getPendingDeletions, listAll, listAll, open, open, rename, sync, syncMetaData, toString
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Methods inherited from class org.apache.lucene.store.BaseDirectory
ensureOpen, obtainLock
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Methods inherited from class org.apache.lucene.store.Directory
copyFrom, getTempFileName, openChecksumInput
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Field Detail
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DEFAULT_BUFFERSIZE
private static final int DEFAULT_BUFFERSIZE
- See Also:
- Constant Field Values
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Constructor Detail
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WindowsDirectory
public WindowsDirectory(java.nio.file.Path path, LockFactory lockFactory) throws java.io.IOException
Create a new WindowsDirectory for the named location.- Parameters:
path
- the path of the directorylockFactory
- the lock factory to use- Throws:
java.io.IOException
- If there is a low-level I/O error
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WindowsDirectory
public WindowsDirectory(java.nio.file.Path path) throws java.io.IOException
Create a new WindowsDirectory for the named location andFSLockFactory.getDefault()
.- Parameters:
path
- the path of the directory- Throws:
java.io.IOException
- If there is a low-level I/O error
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Method Detail
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openInput
public IndexInput openInput(java.lang.String name, IOContext context) throws java.io.IOException
Description copied from class:Directory
Opens a stream for reading an existing file.This method must throw either
NoSuchFileException
orFileNotFoundException
ifname
points to a non-existing file.
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open
private static long open(java.lang.String filename) throws java.io.IOException
Opens a handle to a file.- Throws:
java.io.IOException
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read
private static int read(long fd, byte[] bytes, int offset, int length, long pos) throws java.io.IOException
Reads data from a file at pos into bytes- Throws:
java.io.IOException
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close
private static void close(long fd) throws java.io.IOException
Closes a handle to a file- Throws:
java.io.IOException
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length
private static long length(long fd) throws java.io.IOException
Returns the length of a file- Throws:
java.io.IOException
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