Package org.apache.commons.io.input

Class BufferedFileChannelInputStream.Builder

java.lang.Object

org.apache.commons.io.build.AbstractSupplier<T,B>

org.apache.commons.io.build.AbstractOriginSupplier<T,B>

org.apache.commons.io.build.AbstractStreamBuilder<BufferedFileChannelInputStream,BufferedFileChannelInputStream.Builder>

org.apache.commons.io.input.BufferedFileChannelInputStream.Builder

All Implemented Interfaces:

IOSupplier<BufferedFileChannelInputStream>

Enclosing class:

BufferedFileChannelInputStream

public static class BufferedFileChannelInputStream.Builder
extends AbstractStreamBuilder<BufferedFileChannelInputStream,BufferedFileChannelInputStream.Builder>

Builds a new BufferedFileChannelInputStream.

Using File IO:

 BufferedFileChannelInputStream s = BufferedFileChannelInputStream.builder()
   .setFile(file)
   .setBufferSize(4096)
   .get();
 

Using NIO Path:

 BufferedFileChannelInputStream s = BufferedFileChannelInputStream.builder()
   .setPath(path)
   .setBufferSize(4096)
   .get();
 

Since:

2.12.0

See Also:

get()

Constructor Summary

Constructors

Constructor	Description
Builder()	Constructs a new builder of BufferedFileChannelInputStream.

Method Summary

Modifier and Type	Method	Description
BufferedFileChannelInputStream	get()	Builds a new BufferedFileChannelInputStream.
BufferedFileChannelInputStream.Builder	setFileChannel(java.nio.channels.FileChannel fileChannel)	Sets the file channel.

Methods inherited from class org.apache.commons.io.build.AbstractStreamBuilder

getBufferSize, getBufferSizeDefault, getCharSequence, getCharset, getCharsetDefault, getFile, getInputStream, getOpenOptions, getOutputStream, getPath, getRandomAccessFile, getReader, getWriter, setBufferSize, setBufferSize, setBufferSizeChecker, setBufferSizeMax, setCharset, setCharset, setOpenOptions

Methods inherited from class org.apache.commons.io.build.AbstractOriginSupplier

setByteArray, setCharSequence, setFile, setFile, setInputStream, setOutputStream, setPath, setPath, setRandomAccessFile, setRandomAccessFile, setReader, setURI, setWriter

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.io.function.IOSupplier

asSupplier, getUnchecked

Constructor Detail

Builder

public Builder()

Constructs a new builder of BufferedFileChannelInputStream.

Method Detail

get

public BufferedFileChannelInputStream get()
                                   throws java.io.IOException

Builds a new BufferedFileChannelInputStream.

You must set an aspect that supports AbstractStreamBuilder.getInputStream(), otherwise, this method throws an exception.

This builder uses the following aspects:

• FileChannel takes precedence is set.
• AbstractStreamBuilder.getPath() if the file channel is not set.
• AbstractStreamBuilder.getBufferSize()

Returns:

a new instance.

Throws:

java.lang.IllegalStateException - if the origin is null.

java.lang.UnsupportedOperationException - if the origin cannot be converted to a Path.

java.io.IOException - if an I/O error occurs converting to an Path using AbstractStreamBuilder.getPath().

See Also:

AbstractStreamBuilder.getPath(), AbstractStreamBuilder.getBufferSize(), IOSupplier.getUnchecked()

setFileChannel

public BufferedFileChannelInputStream.Builder setFileChannel(java.nio.channels.FileChannel fileChannel)

Sets the file channel.

This setting takes precedence over all others.

Parameters:

fileChannel - the file channel.

Returns:

this instance.

Since:

2.18.0