iaik.smime.ess.utils
Class ESSLayer

java.lang.Object
  iaik.smime.ess.utils.ESSLayer

Direct Known Subclasses:

EnvelopedESSLayer, SignedESSLayer

public class ESSLayer
extends java.lang.Object

A wrapper for an ESS S/MIME layer.

Field Summary

protected java.lang.Object	content_ The content of this ESSLayer.
protected javax.activation.DataHandler	dataHandler_ The DataHandler that may wrap the content.
static int	ENVELOPED_DATA ESSLayer type CMS ENVELOPED_DATA (1).
static int	SIGNED_DATA ESSLayer type CMS SIGNED_DATA (0).
protected int	type_ The type of this ESS layer, either SIGNED_DATA (0) or ENVELOPED_DATA (1), or -1 (any other type).

Constructor Summary

	ESSLayer(java.lang.Object content) Creates an ESSLayer for the given content, which may represent a cryptographically enhanced S/MIME entity like SignedContent or EncryptedContent, or any other type of content.
protected	ESSLayer(java.lang.Object content, int type) Creates an ESSLayer for the given content of given type.

Method Summary

java.lang.Object	getContent() Gets the content of this ESSLayer.
javax.activation.DataHandler	getDataHandler() Gets the DataHandler that wraps the content of this layer, if set.
ESSLayerException	getException() Gets the exception that indicates a problem that has occured when parsing this layer.
int	getType() Gets the type of this ESS layer, either SIGNED_DATA (0) or ENVELOPED_DATA (1), or -1 (any other type).
protected void	setDataHandler(javax.activation.DataHandler dataHandler) Sets the DataHandler that wraps the content of this layer.

Methods inherited from class java.lang.Object

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

Field Detail

SIGNED_DATA

public static final int SIGNED_DATA

ESSLayer type CMS SIGNED_DATA (0).

See Also:

Constant Field Values

ENVELOPED_DATA

public static final int ENVELOPED_DATA

ESSLayer type CMS ENVELOPED_DATA (1).

See Also:

Constant Field Values

type_

protected int type_

The type of this ESS layer, either SIGNED_DATA (0) or ENVELOPED_DATA (1), or -1 (any other type). This does not represent the content type of the S/MIME message, rather it maybe used to check whether this layer is cryptographically enhnaced or not.

content_

protected java.lang.Object content_

The content of this ESSLayer. This may represent a cryptographically enhanced S/MIME entity like SignedContent or EncryptedContent, or any other MIME entity (e.g. MimeMultipart, MimeBodyPart) or content represented by an, e.g. InputStream, or String, ... .

dataHandler_

protected javax.activation.DataHandler dataHandler_

The DataHandler that may wrap the content.

Constructor Detail

ESSLayer

public ESSLayer(java.lang.Object content)

Creates an ESSLayer for the given content, which may represent a cryptographically enhanced S/MIME entity like SignedContent or EncryptedContent, or any other type of content.

Parameters:

content - the content for this ESSLayer

ESSLayer

protected ESSLayer(java.lang.Object content,
                   int type)

Creates an ESSLayer for the given content of given type. The content object may represent a cryptographically enhanced S/MIME entity like SignedContent or EncryptedContent, or any other type of content.

Parameters:

content - the content for this ESSLayer

type - the cryptograhic enhancement type, either SIGNED_DATA (0) or ENVELOPED_DATA (1), or -1 (any other type) of this layer

Method Detail

getType

public int getType()

Gets the type of this ESS layer, either SIGNED_DATA (0) or ENVELOPED_DATA (1), or -1 (any other type). This does not represent the content type of the S/MIME message, rather it maybe used to check whether this layer is cryptographically enhnaced or not.

Returns:

the cryptograhic enhancement type, either SIGNED_DATA (0) or ENVELOPED_DATA (1), or -1 (any other type) of this layer

getContent

public java.lang.Object getContent()
                            throws java.io.IOException

Gets the content of this ESSLayer.

Returns:

the content of this ESSLayer, either representing a cryptographically enhanced S/MIME entity like SignedContent or EncryptedContent, or any other MIME entity (e.g. MimeMultipart, MimeBodyPart) or content represented by an, e.g. InputStream, or String, ... .

Throws:

java.io.IOException - if an error occurs when accessing the content

getDataHandler

public javax.activation.DataHandler getDataHandler()

Gets the DataHandler that wraps the content of this layer, if set.

Returns:

the DataHandler that wraps the content of this layer, or null if there is no DataHandler

setDataHandler

protected void setDataHandler(javax.activation.DataHandler dataHandler)

Sets the DataHandler that wraps the content of this layer.

Parameters:

dataHandler - the DataHandler that wraps the content of this layer

getException

public ESSLayerException getException()

Gets the exception that indicates a problem that has occured when parsing this layer.

Returns:

the exception indicating a problem that has occured when parsing this layer; will be null if no problem has occured when parsing the layer