Class IOUtils (1.43.0)

public class IOUtils

Utilities for I/O streams.

Inheritance

Object > IOUtils

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Methods

<S>deserialize(byte[] bytes)

public static S <S>deserialize(byte[] bytes)

Deserializes the given byte array into to a newly allocated object.

Parameter

Name	Description
`bytes`	`byte[]` byte array to deserialize or `null` for `null` result

Returns

Type	Description
`S`	new allocated object or `null` for `null` input

Exceptions

Type	Description
`IOException`

<S>deserialize(InputStream inputStream)

public static S <S>deserialize(InputStream inputStream)

Deserializes the given input stream into to a newly allocated object, and close the input stream.

Parameter

Name	Description
`inputStream`	`InputStream` input stream to deserialize

Returns

Type	Description
`S`

Exceptions

Type	Description
`IOException`

computeLength(StreamingContent content)

public static long computeLength(StreamingContent content)

Computes and returns the byte content length for a streaming content by calling StreamingContent#writeTo(OutputStream) on a fake output stream that only counts bytes written.

Parameter

Name	Description
`content`	`StreamingContent` streaming content

Returns

Type	Description
`long`

Exceptions

Type	Description
`IOException`

copy(InputStream inputStream, OutputStream outputStream) (deprecated)

public static void copy(InputStream inputStream, OutputStream outputStream)

Deprecated. use com.google.common.io.ByteStreams#copy(InputStream, OutputStream)

Writes the content provided by the given source input stream into the given destination output stream.

The input stream is guaranteed to be closed at the end of this method.

Sample use:

static void copy(InputStream inputStream, File file) throws IOException { FileOutputStream out = new FileOutputStream(file); try { IOUtils.copy(inputStream, out); } finally { out.close(); } }

Parameters

Name	Description
`inputStream`	`InputStream` source input stream
`outputStream`	`OutputStream` destination output stream

Exceptions

Type	Description
`IOException`

copy(InputStream inputStream, OutputStream outputStream, boolean closeInputStream) (deprecated)

public static void copy(InputStream inputStream, OutputStream outputStream, boolean closeInputStream)

Deprecated. use com.google.common.io.ByteStreams#copy(InputStream, OutputStream)

Writes the content provided by the given source input stream into the given destination output stream, optionally closing the input stream.

Sample use:

static void copy(InputStream inputStream, File file) throws IOException { FileOutputStream out = new FileOutputStream(file); try { IOUtils.copy(inputStream, out, true); } finally { out.close(); } }

Parameters

Name	Description
`inputStream`	`InputStream` source input stream
`outputStream`	`OutputStream` destination output stream
`closeInputStream`	`boolean` whether the input stream should be closed at the end of this method

Exceptions

Type	Description
`IOException`

isSymbolicLink(File file) (deprecated)

public static boolean isSymbolicLink(File file)

Deprecated. use java.nio.file.Path#isSymbolicLink

Returns whether the given file is a symbolic link.

Parameter

Name	Description
`file`	`File`

Returns

Type	Description
`boolean`

Exceptions

Type	Description
`IOException`

serialize(Object value)

public static byte[] serialize(Object value)

Serializes the given object value to a newly allocated byte array.

Parameter

Name	Description
`value`	`Object` object value to serialize

Returns

Type	Description
`byte[]`

Exceptions

Type	Description
`IOException`

serialize(Object value, OutputStream outputStream)

public static void serialize(Object value, OutputStream outputStream)

Serializes the given object value to an output stream, and close the output stream.

Parameters

Name	Description
`value`	`Object` object value to serialize
`outputStream`	`OutputStream` output stream to serialize into

Exceptions

Type	Description
`IOException`

Constructors

IOUtils()

public IOUtils()