org.apache.commons.io.input

Class Tailer.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<Tailer,Tailer.Builder>

org.apache.commons.io.input.Tailer.Builder

All Implemented Interfaces:

IOSupplier<Tailer>

Enclosing class:

Tailer

public static class Tailer.Builder
extends org.apache.commons.io.build.AbstractStreamBuilder<Tailer,Tailer.Builder>

Builds a Tailer with default values.

For example:

 Tailer t = Tailer.builder()
   .setPath(path)
   .setCharset(StandardCharsets.UTF_8)
   .setDelayDuration(Duration.ofSeconds(1))
   .setExecutorService(Executors.newSingleThreadExecutor(Builder::newDaemonThread))
   .setReOpen(false)
   .setStartThread(true)
   .setTailable(tailable)
   .setTailerListener(tailerListener)
   .setTailFromEnd(false)
   .get();
 

Since:

2.12.0

Constructor Summary

Constructors

Constructor and Description
Builder()

Method Summary

Modifier and Type	Method and Description
Tailer	get() Constructs a new instance.
Tailer.Builder	setDelayDuration(java.time.Duration delayDuration) Sets the delay duration.
Tailer.Builder	setExecutorService(java.util.concurrent.ExecutorService executorService) Sets the executor service to use when startThread is true.
Tailer.Builder	setReOpen(boolean reOpen) Sets the re-open behavior.
Tailer.Builder	setStartThread(boolean startThread) Sets the daemon thread startup behavior.
Tailer.Builder	setTailable(Tailer.Tailable tailable) Sets the tailable.
Tailer.Builder	setTailerListener(TailerListener tailerListener) Sets the listener.
Tailer.Builder	setTailFromEnd(boolean end) Sets the tail start behavior.

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

getCharset, setBufferSize, setBufferSize, setCharset, setCharset, setOpenOptions

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

setByteArray, setCharSequence, setFile, setFile, setInputStream, setOutputStream, setPath, setPath, 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

Constructor Detail

Builder

public Builder()

Method Detail

get

public Tailer get()

Constructs a new instance.

This builder use the aspects tailable, Charset, TailerListener, delayDuration, end, reOpen, buffer size.

Returns:

a new instance.

setDelayDuration

public Tailer.Builder setDelayDuration(java.time.Duration delayDuration)

Sets the delay duration. null resets to the default delay of one second.

Parameters:

delayDuration - the delay between checks of the file for new content.

Returns:

this

setExecutorService

public Tailer.Builder setExecutorService(java.util.concurrent.ExecutorService executorService)

Sets the executor service to use when startThread is true.

Parameters:

executorService - the executor service to use when startThread is true.

Returns:

this

setReOpen

public Tailer.Builder setReOpen(boolean reOpen)

Sets the re-open behavior.

Parameters:

reOpen - whether to close/reopen the file between chunks

Returns:

this

setStartThread

public Tailer.Builder setStartThread(boolean startThread)

Sets the daemon thread startup behavior.

Parameters:

startThread - whether to create a daemon thread automatically.

Returns:

this

setTailable

public Tailer.Builder setTailable(Tailer.Tailable tailable)

Sets the tailable.

Parameters:

tailable - the tailable.

Returns:

this.

setTailerListener

public Tailer.Builder setTailerListener(TailerListener tailerListener)

Sets the listener.

Parameters:

tailerListener - the listener.

Returns:

this

setTailFromEnd

public Tailer.Builder setTailFromEnd(boolean end)

Sets the tail start behavior.

Parameters:

end - Set to true to tail from the end of the file, false to tail from the beginning of the file.

Returns:

this