de.aristaflow.adept2.util

Class StreamTools

java.lang.Object

de.aristaflow.adept2.util.StreamTools

public class StreamTools
extends java.lang.Object

InputStream and OutputStream related tool methods.

Author:

Patrick Schmidt

Constructor Summary

Constructors

Constructor and Description
StreamTools()

Method Summary

Modifier and Type	Method and Description
static <T extends java.io.Serializable> T	cloneViaByteArray(java.io.Serializable object, java.lang.Class<T> clazz) Clone the designated object by converting it to a byte array with toByteArray(Serializable) and deserialise it again with fromByteArray(byte[]).
static byte[]	copyStreamToByteArray(java.io.InputStream in) Copy all content of the given InputStream to a new byte array.
static void	copyStreamToStream(java.io.InputStream in, java.io.OutputStream out) Copy all content of the given InputStream to the given OutputStream.
static java.io.Serializable	fromByteArray(byte[] object) Deserialises the object contained in the designated byte array.
static byte[]	toByteArray(java.io.Serializable object) Converts the designated serialisable object to a byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamTools

public StreamTools()

Method Detail

copyStreamToStream

public static void copyStreamToStream(java.io.InputStream in,
                                      java.io.OutputStream out)
                               throws java.io.IOException

Copy all content of the given InputStream to the given OutputStream. This does not close the streams!

Parameters:

in - input stream

out - output stream

Throws:

java.io.IOException - if an I/O error occurs

copyStreamToByteArray

public static byte[] copyStreamToByteArray(java.io.InputStream in)
                                    throws java.io.IOException

Copy all content of the given InputStream to a new byte array.

Parameters:

in - input stream

Returns:

the content of the input stream in a byte array

Throws:

java.io.IOException - if an I/O error occurs

toByteArray

public static final byte[] toByteArray(java.io.Serializable object)
                                throws java.io.IOException

Converts the designated serialisable object to a byte array.

Parameters:

object - A serialisable object to convert to a byte array.

Returns:

A byte array representing the serialised designated object.

Throws:

java.io.IOException - If there are problems when writing the designated object, a IOException will be thrown.

fromByteArray

public static final java.io.Serializable fromByteArray(byte[] object)
                                                throws java.io.IOException,
                                                       java.lang.ClassNotFoundException

Deserialises the object contained in the designated byte array.

Parameters:

object - A byte array representing a serialised object.

Returns:

The serialisable object from the designated byte array.

Throws:

java.io.IOException - If there are problems when reading from the designated byte array, a IOException will be thrown.

java.lang.ClassNotFoundException - If the class of the designated object cannot be found for deserialisation, a ClassNotFoundException will be thrown.

cloneViaByteArray

public static final <T extends java.io.Serializable> T cloneViaByteArray(java.io.Serializable object,
                                                                         java.lang.Class<T> clazz)
                                                                  throws java.io.IOException,
                                                                         java.lang.ClassNotFoundException

Clone the designated object by converting it to a byte array with toByteArray(Serializable) and deserialise it again with fromByteArray(byte[]).

Parameters:

object - A serialisable object to be copied.

clazz - The class of the serialisable object.

Returns:

A copy of the serialisable object.

Throws:

java.io.IOException - If there are problems when writing the designated object or reading from the designated byte array, an IOException will be thrown.

java.lang.ClassNotFoundException - If the class of the designated object cannot be found for deserialisation, a ClassNotFoundException will be thrown.