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<T,B>

Type Parameters:

T - the type of instances to build.

B - the type of builder subclass.

All Implemented Interfaces:

IOSupplier<T>

Direct Known Subclasses:

AutoCloseInputStream.Builder, BOMInputStream.Builder, BufferedFileChannelInputStream.Builder, CharSequenceInputStream.Builder, ChunkedOutputStream.Builder, DeferredFileOutputStream.Builder, FileWriterWithEncoding.Builder, LockableFileWriter.Builder, MemoryMappedFileInputStream.Builder, MessageDigestCalculatingInputStream.Builder, QueueInputStream.Builder, RandomAccessFileInputStream.Builder, ReadAheadInputStream.Builder, ReaderInputStream.Builder, ReversedLinesFileReader.Builder, Tailer.Builder, UncheckedBufferedReader.Builder, UncheckedFilterInputStream.Builder, UncheckedFilterOutputStream.Builder, UncheckedFilterReader.Builder, UncheckedFilterWriter.Builder, UnsynchronizedBufferedInputStream.Builder, UnsynchronizedByteArrayInputStream.Builder, UnsynchronizedByteArrayOutputStream.Builder, UnsynchronizedFilterInputStream.Builder, WriterOutputStream.Builder, XmlStreamReader.Builder, XmlStreamWriter.Builder
```
public abstract class AbstractStreamBuilder<T,B extends AbstractStreamBuilder<T,B>>
extends AbstractOriginSupplier<T,B>
```
Abstracts building a typed instance of T.

Since:

2.12.0

Field Summary

Fields
Modifier and Type	Field	Description
`private int`	`bufferSize`	The buffer size, defaults to `IOUtils.DEFAULT_BUFFER_SIZE` (8192).
`private java.util.function.IntUnaryOperator`	`bufferSizeChecker`	The checking behavior for a buffer size request.
`private int`	`bufferSizeDefault`	The buffer size, defaults to `IOUtils.DEFAULT_BUFFER_SIZE` (8192).
`private int`	`bufferSizeMax`	The maximum buffer size.
`private java.nio.charset.Charset`	`charset`	The Charset, defaults to `Charset.defaultCharset()`.
`private java.nio.charset.Charset`	`charsetDefault`	The Charset, defaults to `Charset.defaultCharset()`.
`private static int`	`DEFAULT_MAX_VALUE`
`private static java.nio.file.OpenOption[]`	`DEFAULT_OPEN_OPTIONS`
`private java.util.function.IntUnaryOperator`	`defaultSizeChecker`	The default checking behavior for a buffer size request.
`private java.nio.file.OpenOption[]`	`openOptions`

Constructor Summary

Constructors
Constructor Description

AbstractStreamBuilder()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private int`	`checkBufferSize(int size)`	Applies the buffer size request.
`protected int`	`getBufferSize()`	Gets the buffer size, defaults to `IOUtils.DEFAULT_BUFFER_SIZE` (8192).
`protected int`	`getBufferSizeDefault()`	Gets the buffer size default, defaults to `IOUtils.DEFAULT_BUFFER_SIZE` (8192).
`protected java.lang.CharSequence`	`getCharSequence()`	Gets a CharSequence from the origin with a Charset.
`java.nio.charset.Charset`	`getCharset()`	Gets the Charset, defaults to `Charset.defaultCharset()`.
`protected java.nio.charset.Charset`	`getCharsetDefault()`	Gets the Charset default, defaults to `Charset.defaultCharset()`.
`protected java.io.InputStream`	`getInputStream()`	Gets an input stream from the origin with open options.
`protected java.nio.file.OpenOption[]`	`getOpenOptions()`
`protected java.io.OutputStream`	`getOutputStream()`	Gets an OutputStream from the origin with open options.
`protected java.nio.file.Path`	`getPath()`	Gets a Path from the origin.
`protected java.io.Writer`	`getWriter()`	Gets an writer from the origin with open options.
`B`	`setBufferSize(int bufferSize)`	Sets the buffer size.
`B`	`setBufferSize(java.lang.Integer bufferSize)`	Sets the buffer size.
`B`	`setBufferSizeChecker(java.util.function.IntUnaryOperator bufferSizeChecker)`	Sets the buffer size checker function.
`protected B`	`setBufferSizeDefault(int bufferSizeDefault)`	Sets the buffer size for subclasses to initialize.
`B`	`setBufferSizeMax(int bufferSizeMax)`	The maximum buffer size checked by the buffer size checker.
`B`	`setCharset(java.lang.String charset)`	Sets the Charset.
`B`	`setCharset(java.nio.charset.Charset charset)`	Sets the Charset.
`protected B`	`setCharsetDefault(java.nio.charset.Charset defaultCharset)`	Sets the Charset default for subclasses to initialize.
`B`	`setOpenOptions(java.nio.file.OpenOption... openOptions)`	Sets the OpenOption[].
`private int`	`throwIae(int size, int max)`

Methods inherited from class org.apache.commons.io.build.AbstractOriginSupplier
checkOrigin, getOrigin, hasOrigin, newByteArrayOrigin, newCharSequenceOrigin, newFileOrigin, newFileOrigin, newInputStreamOrigin, newOutputStreamOrigin, newPathOrigin, newPathOrigin, newReaderOrigin, newURIOrigin, newWriterOrigin, setByteArray, setCharSequence, setFile, setFile, setInputStream, setOrigin, setOutputStream, setPath, setPath, setReader, setURI, setWriter

Methods inherited from class org.apache.commons.io.build.AbstractSupplier
asThis

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.commons.io.function.IOSupplier
asSupplier, get

- Field Detail
  - DEFAULT_MAX_VALUE
```
private static final int DEFAULT_MAX_VALUE
```
    See Also:
    
    Constant Field Values
  - DEFAULT_OPEN_OPTIONS
```
private static final java.nio.file.OpenOption[] DEFAULT_OPEN_OPTIONS
```
  - bufferSize
```
private int bufferSize
```
    The buffer size, defaults to IOUtils.DEFAULT_BUFFER_SIZE (8192).
  - bufferSizeDefault
```
private int bufferSizeDefault
```
    The buffer size, defaults to IOUtils.DEFAULT_BUFFER_SIZE (8192).
  - bufferSizeMax
```
private int bufferSizeMax
```
    The maximum buffer size.
  - charset
```
private java.nio.charset.Charset charset
```
    The Charset, defaults to Charset.defaultCharset().
  - charsetDefault
```
private java.nio.charset.Charset charsetDefault
```
    The Charset, defaults to Charset.defaultCharset().
  - openOptions
```
private java.nio.file.OpenOption[] openOptions
```
  - defaultSizeChecker
```
private final java.util.function.IntUnaryOperator defaultSizeChecker
```
    The default checking behavior for a buffer size request. Throws a IllegalArgumentException by default.
  - bufferSizeChecker
```
private java.util.function.IntUnaryOperator bufferSizeChecker
```
    The checking behavior for a buffer size request.
- Constructor Detail
  - AbstractStreamBuilder
```
public AbstractStreamBuilder()
```
- Method Detail
  - checkBufferSize
```
private int checkBufferSize(int size)
```
    Applies the buffer size request.
    
    Parameters:
    
    size - the size request.
    
    Returns:
    
    the size to use, usually the input, or can throw an unchecked exception, like IllegalArgumentException.
  - getBufferSize
```
protected int getBufferSize()
```
    Gets the buffer size, defaults to IOUtils.DEFAULT_BUFFER_SIZE (8192).
    
    Returns:
    
    the buffer size, defaults to IOUtils.DEFAULT_BUFFER_SIZE (8192).
  - getBufferSizeDefault
```
protected int getBufferSizeDefault()
```
    Gets the buffer size default, defaults to IOUtils.DEFAULT_BUFFER_SIZE (8192).
    
    Returns:
    
    the buffer size default, defaults to IOUtils.DEFAULT_BUFFER_SIZE (8192).
  - getCharSequence
```
protected java.lang.CharSequence getCharSequence()
                                          throws java.io.IOException
```
    Gets a CharSequence from the origin with a Charset.
    
    Returns:
    
    An input stream
    
    Throws:
    
    java.io.IOException - if an I/O error occurs.
    
    java.lang.UnsupportedOperationException - if the origin cannot be converted to a CharSequence.
    
    java.lang.IllegalStateException - if the origin is null.
    
    Since:
    
    2.13.0
    
    See Also:
    
    AbstractOrigin.getCharSequence(Charset)
  - getCharset
```
public java.nio.charset.Charset getCharset()
```
    Gets the Charset, defaults to Charset.defaultCharset().
    
    Returns:
    
    the Charset, defaults to Charset.defaultCharset().
  - getCharsetDefault
```
protected java.nio.charset.Charset getCharsetDefault()
```
    Gets the Charset default, defaults to Charset.defaultCharset().
    
    Returns:
    
    the Charset default, defaults to Charset.defaultCharset().
  - getInputStream
```
protected java.io.InputStream getInputStream()
                                      throws java.io.IOException
```
    Gets an input stream from the origin with open options.
    
    Returns:
    
    An input stream
    
    Throws:
    
    java.io.IOException - if an I/O error occurs.
    
    java.lang.UnsupportedOperationException - if the origin cannot be converted to an InputStream.
    
    java.lang.IllegalStateException - if the origin is null.
    
    Since:
    
    2.13.0
    
    See Also:
    
    AbstractOrigin.getInputStream(OpenOption...)
  - getOpenOptions
```
protected java.nio.file.OpenOption[] getOpenOptions()
```
  - getOutputStream
```
protected java.io.OutputStream getOutputStream()
                                        throws java.io.IOException
```
    Gets an OutputStream from the origin with open options.
    
    Returns:
    
    An OutputStream
    
    Throws:
    
    java.io.IOException - if an I/O error occurs.
    
    java.lang.UnsupportedOperationException - if the origin cannot be converted to an OutputStream.
    
    java.lang.IllegalStateException - if the origin is null.
    
    Since:
    
    2.13.0
    
    See Also:
    
    AbstractOrigin.getOutputStream(OpenOption...)
  - getPath
```
protected java.nio.file.Path getPath()
```
    Gets a Path from the origin.
    
    Returns:
    
    A Path
    
    Throws:
    
    java.lang.UnsupportedOperationException - if the origin cannot be converted to a Path.
    
    java.lang.IllegalStateException - if the origin is null.
    
    Since:
    
    2.13.0
    
    See Also:
    
    AbstractOrigin.getPath()
  - getWriter
```
protected java.io.Writer getWriter()
                            throws java.io.IOException
```
    Gets an writer from the origin with open options.
    
    Returns:
    
    An writer.
    
    Throws:
    
    java.io.IOException - if an I/O error occurs.
    
    java.lang.UnsupportedOperationException - if the origin cannot be converted to a Writer.
    
    java.lang.IllegalStateException - if the origin is null.
    
    Since:
    
    2.13.0
    
    See Also:
    
    AbstractOrigin.getOutputStream(OpenOption...)
  - setBufferSize
```
public B setBufferSize(int bufferSize)
```
    Sets the buffer size. Invalid input (bufferSize <= 0) resets the value to its default.
    Subclasses may ignore this setting.
    
    Parameters:
    
    bufferSize - the buffer size.
    
    Returns:
    
    this.
  - setBufferSize
```
public B setBufferSize(java.lang.Integer bufferSize)
```
    Sets the buffer size.
    Subclasses may ignore this setting.
    
    Parameters:
    
    bufferSize - the buffer size, null resets to the default.
    
    Returns:
    
    this.
  - setBufferSizeChecker
```
public B setBufferSizeChecker(java.util.function.IntUnaryOperator bufferSizeChecker)
```
    Sets the buffer size checker function. Throws a IllegalArgumentException by default.
    
    Parameters:
    
    bufferSizeChecker - the buffer size checker function. null resets to the default behavior.
    
    Returns:
    
    this
    
    Since:
    
    2.14.0
  - setBufferSizeDefault
```
protected B setBufferSizeDefault(int bufferSizeDefault)
```
    Sets the buffer size for subclasses to initialize.
    Subclasses may ignore this setting.
    
    Parameters:
    
    bufferSizeDefault - the buffer size, null resets to the default.
    
    Returns:
    
    this.
  - setBufferSizeMax
```
public B setBufferSizeMax(int bufferSizeMax)
```
    The maximum buffer size checked by the buffer size checker. Values less or equal to 0, resets to the int max value. By default, if this value is exceeded, this methods throws an IllegalArgumentException.
    
    Parameters:
    
    bufferSizeMax - maximum buffer size checked by the buffer size checker.
    
    Returns:
    
    this.
    
    Since:
    
    2.14.0
  - setCharset
```
public B setCharset(java.nio.charset.Charset charset)
```
    Sets the Charset.
    Subclasses may ignore this setting.
    
    Parameters:
    
    charset - the Charset, null resets to the default.
    
    Returns:
    
    this.
  - setCharset
```
public B setCharset(java.lang.String charset)
```
    Sets the Charset.
    Subclasses may ignore this setting.
    
    Parameters:
    
    charset - the Charset name, null resets to the default.
    
    Returns:
    
    this.
  - setCharsetDefault
```
protected B setCharsetDefault(java.nio.charset.Charset defaultCharset)
```
    Sets the Charset default for subclasses to initialize.
    Subclasses may ignore this setting.
    
    Parameters:
    
    defaultCharset - the Charset name, null resets to the default.
    
    Returns:
    
    this.
  - setOpenOptions
```
public B setOpenOptions(java.nio.file.OpenOption... openOptions)
```
    Sets the OpenOption[].
    Normally used with InputStream, OutputStream, and Writer.
    
    Subclasses may ignore this setting.
    
    Parameters:
    
    openOptions - the OpenOption[] name, null resets to the default.
    
    Returns:
    
    this.
    
    Since:
    
    2.13.0
    
    See Also:
    
    AbstractOriginSupplier.setInputStream(InputStream), AbstractOriginSupplier.setOutputStream(OutputStream), AbstractOriginSupplier.setWriter(Writer)
  - throwIae
```
private int throwIae(int size,
                     int max)
```

Class AbstractStreamBuilder<T,​B extends AbstractStreamBuilder<T,​B>>

Field Summary

Constructor Summary

Method Summary

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

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

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MAX_VALUE

DEFAULT_OPEN_OPTIONS

bufferSize

bufferSizeDefault

bufferSizeMax

charset

charsetDefault

openOptions

defaultSizeChecker

bufferSizeChecker

Constructor Detail

AbstractStreamBuilder

Method Detail

checkBufferSize

getBufferSize

getBufferSizeDefault

getCharSequence

getCharset

getCharsetDefault

getInputStream

getOpenOptions

getOutputStream

getPath

getWriter

setBufferSize

setBufferSize

setBufferSizeChecker

setBufferSizeDefault

setBufferSizeMax

setCharset

setCharset

setCharsetDefault

setOpenOptions

throwIae

Class AbstractStreamBuilder<T,B extends AbstractStreamBuilder<T,B>>