org.eclipse.californium.scandium.dtls

Class CertificateTypeExtension

java.lang.Object

org.eclipse.californium.scandium.dtls.HelloExtension

org.eclipse.californium.scandium.dtls.CertificateTypeExtension

Direct Known Subclasses:

ClientCertificateTypeExtension, ServerCertificateTypeExtension

public abstract class CertificateTypeExtension
extends HelloExtension

This represents the Certificate Type Extension. See RFC 7250 for details.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.californium.scandium.dtls.HelloExtension

HelloExtension.ExtensionType

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	EXTENSION_TYPE_BITS
protected static int	LIST_FIELD_LENGTH_BITS

Fields inherited from class org.eclipse.californium.scandium.dtls.HelloExtension

LENGTH_BITS, TYPE_BITS

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CertificateTypeExtension(HelloExtension.ExtensionType type, CertificateType certificateType) Constructs a server-side certificate type extension with a the supported certificate type.
protected	CertificateTypeExtension(HelloExtension.ExtensionType type, org.eclipse.californium.elements.util.DatagramReader extensionDataReader) Constructs a certificate type extension with a list of supported certificate types, or a selected certificate type chosen by the server.
protected	CertificateTypeExtension(HelloExtension.ExtensionType type, List<CertificateType> certificateTypes) Constructs a client-side certificate type extension with a list of supported certificate types.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addExtensionData(org.eclipse.californium.elements.util.DatagramWriter writer) Adds binary encoding of this extension's data.
List<CertificateType>	getCertificateTypes()
int	getLength() Gets the overall length of this extension's corresponding Extension struct.
boolean	isClientExtension()
String	toString()

Methods inherited from class org.eclipse.californium.scandium.dtls.HelloExtension

fromExtensionDataReader, toByteArray

Methods inherited from class java.lang.Object

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

Field Detail

LIST_FIELD_LENGTH_BITS

protected static final int LIST_FIELD_LENGTH_BITS

See Also:

Constant Field Values

EXTENSION_TYPE_BITS

protected static final int EXTENSION_TYPE_BITS

See Also:

Constant Field Values

Constructor Detail

CertificateTypeExtension

protected CertificateTypeExtension(HelloExtension.ExtensionType type,
                        org.eclipse.californium.elements.util.DatagramReader extensionDataReader)

Constructs a certificate type extension with a list of supported certificate types, or a selected certificate type chosen by the server.

Parameters:

type - the type of the extension.

extensionDataReader - the list of supported certificate types or the selected certificate type encoded in bytes.

Throws:

NullPointerException - if extension data is null

IllegalArgumentException - if extension data is empty

CertificateTypeExtension

protected CertificateTypeExtension(HelloExtension.ExtensionType type,
                        List<CertificateType> certificateTypes)

Constructs a client-side certificate type extension with a list of supported certificate types.

Parameters:

type - the type of the extension.

certificateTypes - the list of supported certificate types.

Throws:

NullPointerException - if certificate types is null

IllegalArgumentException - if certificate types is empty.

CertificateTypeExtension

protected CertificateTypeExtension(HelloExtension.ExtensionType type,
                        CertificateType certificateType)

Constructs a server-side certificate type extension with a the supported certificate type.

Parameters:

type - the type of the extension.

certificateType - the supported certificate type.

Throws:

NullPointerException - if certificate type is null

Method Detail

isClientExtension

public boolean isClientExtension()

getLength

public int getLength()

Description copied from class: HelloExtension

Gets the overall length of this extension's corresponding Extension struct.

Note that this includes the 2 bytes indicating the extension type.

Specified by:

getLength in class HelloExtension

Returns:

the length in bytes

toString

public String toString()

Overrides:

toString in class HelloExtension

addExtensionData

protected void addExtensionData(org.eclipse.californium.elements.util.DatagramWriter writer)

Description copied from class: HelloExtension

Adds binary encoding of this extension's data.

This implementation does not do anything. Sub-classes should override this method and use the passed-in writer to add their extension_data bytes to the Extension data structure.

NB: Subclasses MUST NOT write the extension's type code to the writer as this will already have been done by the HelloExtension.toByteArray() method.

Specified by:

addExtensionData in class HelloExtension

Parameters:

writer - the writer to use for serialization

getCertificateTypes

public List<CertificateType> getCertificateTypes()