cz.ues.platform.commons.lang

Class UESByteSource

java.lang.Object

cz.ues.platform.commons.lang.UESByteSource

All Implemented Interfaces:

UESStreamSource, javax.activation.DataSource

Direct Known Subclasses:

UESStringSource

public class UESByteSource
extends java.lang.Object
implements UESStreamSource

This DataSource can be used in two independent use cases.
One is for read data, given to constructor, by InputStream.
Second is for writing data to OutputStream and getting it by method toByteArray().
This two scenarios cannot be mixed, otherwise exception will be thrown during calling method getInputStream() or getOutputStream() depends on use case.

Since:

UES7-06

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	contentType
protected byte[]	data
static java.lang.String	DEFAULT_CONTENT_TYPE
static java.lang.String	DEFAULT_NAME
protected java.lang.String	name
protected java.io.ByteArrayOutputStream	outStream

Constructor Summary

Constructors

Constructor and Description
UESByteSource() Creates a new instance of UESByteSource.
UESByteSource(byte[] data) Creates a new instance of UESByteSource.
UESByteSource(byte[] data, java.lang.String contentType) Creates a new instance of UESByteSource.
UESByteSource(byte[] data, java.lang.String contentType, java.lang.String name) Creates a new instance of UESByteSource.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	getContentType()
java.io.InputStream	getInputStream() Create InputStream from data set in constructor, and there is no InputStream available if OutputStream is created or if there is no data.
java.lang.String	getName()
java.io.OutputStream	getOutputStream() If you get OutputStream, you cannot get InputStream any more, and vice versa.
long	getSize() Returns data size in bytes.
byte[]	toByteArray()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_CONTENT_TYPE

public static final DEFAULT_CONTENT_TYPE

See Also:

Constant Field Values

DEFAULT_NAME

public static final DEFAULT_NAME

See Also:

Constant Field Values

data

protected data

outStream

protected outStream

name

protected name

contentType

protected contentType

Constructor Detail

UESByteSource

public UESByteSource(byte[] data,
java.lang.String contentType,
java.lang.String name)

Creates a new instance of UESByteSource.
Default settings:
contentType = "application/octet-stream"
name = ""

Parameters:

data - - source data for InputStream, if you give null value, you cannot get InputStream instead Exception is thrown

contentType - - MIME content type of data

name - - name of byte source

Since:

UES7-06

UESByteSource

public UESByteSource(byte[] data,
java.lang.String contentType)

Creates a new instance of UESByteSource. Constructor with some default setting.
Default settings:
contentType = "application/octet-stream"
name = ""

Parameters:

data - - source data for InputStream, if you give null value, you cannot get InputStream instead Exception is thrown

contentType - - MIME content type of data

name - - name of byte source

Since:

UES7-06

UESByteSource

public UESByteSource(byte[] data)

Creates a new instance of UESByteSource. Constructor with some default setting.
Default settings:
contentType = "application/octet-stream"
name = ""

Parameters:

data - - source data for InputStream, if you give null value, you cannot get InputStream instead Exception is thrown

contentType - - MIME content type of data

name - - name of byte source

Since:

UES7-06

UESByteSource

public UESByteSource()

Creates a new instance of UESByteSource. Only for OutputStream with default setting.
Default settings:
contentType = "application/octet-stream"
name = ""

Since:

UES7-06

Method Detail

getInputStream

public java.io.InputStream getInputStream()
throws UESIORTException

Create InputStream from data set in constructor, and there is no InputStream available if OutputStream is created or if there is no data.

Specified by:

getInputStream in interface javax.activation.DataSource

Throws:

UESIORTException

Since:

UES7-06

See Also:

DataSource.getInputStream()

getName

public java.lang.String getName()

Specified by:

getName in interface javax.activation.DataSource

Since:

UES7-06

See Also:

DataSource.getName()

getOutputStream

public java.io.OutputStream getOutputStream()

If you get OutputStream, you cannot get InputStream any more, and vice versa.

Specified by:

getOutputStream in interface javax.activation.DataSource

Since:

UES7-06

See Also:

DataSource.getOutputStream()

getSize

public long getSize()

Description copied from interface: UESStreamSource

Returns data size in bytes.

Specified by:

getSize in interface UESStreamSource

Returns:

number of bytes of data filled in constructor or if OutputStream is created, this get written number of bytes

Since:

UES7-06

See Also:

UESStreamSource.getSize()

getContentType

public java.lang.String getContentType()

Specified by:

getContentType in interface javax.activation.DataSource

Since:

UES7-06

See Also:

DataSource.getContentType()

toByteArray

public byte[] toByteArray()

Returns:

byte array of data filled in constructor or if OutputStream is created, this get written bytes

Since:

UES7-06