com.cloudhopper.smpp.util

Class TlvUtil

java.lang.Object

com.cloudhopper.smpp.util.TlvUtil

public class TlvUtil
extends Object

Utility class for working with TLVs.

Author:

joelauer (twitter: @jjlauer or http://twitter.com/jjlauer)

Constructor Summary

Constructors

Constructor and Description
TlvUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static Tlv	createFixedLengthStringTlv(short tag, String value, int fixedLength) Writes a fixed length String TLV with null bytes filling the remaining part of the byte array.
static Tlv	createFixedLengthStringTlv(short tag, String value, int fixedLength, String charsetName) Writes a fixed length String TLV with null bytes filling the remaining part of the byte array.
static Tlv	createNullTerminatedStringTlv(short tag, String value) Writes a variable length C-String (null terminated) TLV.
static Tlv	createNullTerminatedStringTlv(short tag, String value, String charsetName) Writes a variable length C-String (null terminated) TLV.

Methods inherited from class java.lang.Object

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

Constructor Detail

TlvUtil

public TlvUtil()

Method Detail

createNullTerminatedStringTlv

public static Tlv createNullTerminatedStringTlv(short tag,
                                String value)
                                         throws TlvConvertException

Writes a variable length C-String (null terminated) TLV. If the String is null this method will only write out the NULL byte (0x00) TLV. Uses ISO-8859-1 as the charset to convert the String into bytes.

Parameters:

tag - The TLV tag value

value - The String to include in the TLV value

Returns:

A new TLV

Throws:

TlvConvertException - Thrown if there is an error during conversion of the value into TLV.

createNullTerminatedStringTlv

public static Tlv createNullTerminatedStringTlv(short tag,
                                String value,
                                String charsetName)
                                         throws TlvConvertException

Writes a variable length C-String (null terminated) TLV. If the String is null this method will only write out the NULL byte (0x00) TLV.

Parameters:

tag - The TLV tag value

value - The String to include in the TLV value

charsetName - The charsetName to use to convert the String into bytes

Returns:

A new TLV

Throws:

TlvConvertException - Thrown if there is an error during conversion of the value into TLV.

createFixedLengthStringTlv

public static Tlv createFixedLengthStringTlv(short tag,
                             String value,
                             int fixedLength)
                                      throws TlvConvertException

Writes a fixed length String TLV with null bytes filling the remaining part of the byte array. For example, if "1" is the String and the fixed length is 4, then the internal value of the TLV would be "31000000".

Parameters:

tag - The TLV tag value

value - The String to include in the TLV value

fixedLength - The fixed length of the byte array value of the TLV

Returns:

A new TLV

Throws:

TlvConvertException - Thrown if there is an error during conversion of the value into TLV.

createFixedLengthStringTlv

public static Tlv createFixedLengthStringTlv(short tag,
                             String value,
                             int fixedLength,
                             String charsetName)
                                      throws TlvConvertException

Writes a fixed length String TLV with null bytes filling the remaining part of the byte array. For example, if "1" is the String and the fixed length is 4, then the internal value of the TLV would be "31000000".

Parameters:

tag - The TLV tag value

value - The String to include in the TLV value

fixedLength - The fixed length of the byte array value of the TLV

charsetName - The charsetName to use to convert the String into bytes

Returns:

A new TLV

Throws:

TlvConvertException - Thrown if there is an error during conversion of the value into TLV.