org.apache.ode.utils

Class StreamUtils

java.lang.Object

org.apache.ode.utils.StreamUtils

public class StreamUtils
extends java.lang.Object

Utilities for dealing with byte (InputStream and OutputStream) and character (Reader and Writer) streams.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_BUFFER_SIZE The default size of the byte buffer used in the copy(java.io.OutputStream, java.io.InputStream, int) methods.

Constructor Summary

Constructors

Constructor and Description
StreamUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	copy(java.io.OutputStream dest, java.io.InputStream source) Copy with default buffer size.
static void	copy(java.io.OutputStream dest, java.io.InputStream source, int bufSize) Copy data from an InputStream to an OutputStream until an end-of-stream is reached on the source InputStream.
static void	copy(java.io.OutputStream dest, java.net.URL source) Copy from URL stream.
static void	copy(java.io.Writer dest, java.io.Reader source, int bufSize) Copy data from an Reader to an Writer until an end-of-stream is reached on the source Reader.
static void	extractJar(java.io.File dest, java.io.InputStream is) Expand a Jar input stream.
static byte[]	read(java.io.InputStream source) Read the contents of the given InputStream into a byte array.
static byte[]	read(java.net.URL input) Read the contents of the given URL into a byte array.
static java.lang.Object	readObj(java.io.InputStream is)
static void	write(java.io.OutputStream dest, java.io.Serializable src) Write a Serializable object to an output stream using the ObjectOutputStream mechanism.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_BUFFER_SIZE

public static final int DEFAULT_BUFFER_SIZE

The default size of the byte buffer used in the copy(java.io.OutputStream, java.io.InputStream, int) methods.

See Also:

Constant Field Values

Constructor Detail

StreamUtils

public StreamUtils()

Method Detail

read

public static byte[] read(java.net.URL input)
                   throws java.io.IOException

Read the contents of the given URL into a byte array.

Parameters:

input - the URL to read

Returns:

an array of bytes.

Throws:

java.io.IOException - in case of I/O error

read

public static byte[] read(java.io.InputStream source)
                   throws java.io.IOException

Read the contents of the given InputStream into a byte array.

Parameters:

input - the InputStream to read

Returns:

an array of bytes.

Throws:

java.io.IOException - in case of I/O error

copy

public static void copy(java.io.OutputStream dest,
        java.io.InputStream source,
        int bufSize)
                 throws java.io.IOException

Copy data from an InputStream to an OutputStream until an end-of-stream is reached on the source InputStream. This method does not attempt to close either the source or the destination stream.

Parameters:

dest - destination OutputStream

source - source InputStream

bufSize - write buffer size

Throws:

java.io.IOException - in case of I/O error

copy

public static void copy(java.io.Writer dest,
        java.io.Reader source,
        int bufSize)
                 throws java.io.IOException

Copy data from an Reader to an Writer until an end-of-stream is reached on the source Reader. This method does not attempt to close either the source or the destination stream.

Parameters:

dest - destination Writer

source - source Reader

bufSize - write buffer size

Throws:

java.io.IOException - in case of I/O error

copy

public static void copy(java.io.OutputStream dest,
        java.io.InputStream source)
                 throws java.io.IOException

Copy with default buffer size.

Throws:

java.io.IOException

See Also:

copy(java.io.OutputStream, java.io.InputStream), DEFAULT_BUFFER_SIZE

copy

public static void copy(java.io.OutputStream dest,
        java.net.URL source)
                 throws java.io.IOException

Copy from URL stream.

Parameters:

dest - destination OutputStream

source - source URL

Throws:

java.io.IOException

See Also:

copy(java.io.OutputStream, java.io.InputStream, int)

write

public static void write(java.io.OutputStream dest,
         java.io.Serializable src)
                  throws java.io.IOException

Write a Serializable object to an output stream using the ObjectOutputStream mechanism.

Parameters:

dest - destination OutputStream

src - source Serializable

Throws:

java.io.IOException

readObj

public static java.lang.Object readObj(java.io.InputStream is)
                                throws java.io.IOException,
                                       java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

extractJar

public static void extractJar(java.io.File dest,
              java.io.InputStream is)
                       throws java.io.IOException

Expand a Jar input stream.

Throws:

java.io.IOException