/// <summary>
/// Gets the concatenation information of a message.
/// </summary>
/// <param name="pdu">The message to get the information of.</param>
/// <returns>An object implementing <see cref="T:GSMCommunication.PDUDecoder.SmartMessaging.IConcatenationInfo" />, if
/// the message is a part of a concatenated message, null otherwise.</returns>
/// <remarks>
/// <para>The returned information can be used to discover the parts of a concatenated message
/// or recombine the parts back into one message.</para>
/// </remarks>
public static IConcatenationInfo GetConcatenationInfo(SmsPdu pdu)
{
if (pdu != null)
{
IConcatenationInfo concatenationInfo = null;
if (pdu.UserDataHeaderPresent)
{
byte[] userDataHeader = pdu.GetUserDataHeader();
InformationElement[] informationElementArray = SmartMessageDecoder.DecodeUserDataHeader(userDataHeader);
InformationElement[] informationElementArray1 = informationElementArray;
int num = 0;
while (num < (int)informationElementArray1.Length)
{
InformationElement informationElement = informationElementArray1[num];
if (informationElement as IConcatenationInfo == null)
{
num++;
}
else
{
concatenationInfo = (IConcatenationInfo)informationElement;
break;
}
}
}
return(concatenationInfo);
}
else
{
throw new ArgumentNullException("pdu");
}
}
/// <summary>
/// Creates a user data header out of information elements.
/// </summary>
/// <param name="elements">The <see cref="T:GSMCommunication.PDUDecoder.SmartMessaging.InformationElement" /> instances to be stored in the header.</param>
/// <returns>A byte array containing the user data header.</returns>
/// <exception cref="T:System.ArgumentNullException">elements is null.</exception>
/// <exception cref="T:System.ArgumentException">The sum of all elements is too large, size exceeds 255 bytes.</exception>
public static byte[] CreateUserDataHeader(InformationElement[] elements)
{
if (elements != null)
{
List <byte> nums = new List <byte>();
nums.Add(0);
int length = 0;
InformationElement[] informationElementArray = elements;
for (int i = 0; i < (int)informationElementArray.Length; i++)
{
InformationElement informationElement = informationElementArray[i];
byte[] byteArray = informationElement.ToByteArray();
nums.AddRange(byteArray);
length = length + (int)byteArray.Length;
}
if (length <= 255)
{
nums[0] = (byte)length;
return(nums.ToArray());
}
else
{
throw new ArgumentException("The sum of all elements is too large, size exceeds 255 bytes.");
}
}
else
{
throw new ArgumentNullException("elements");
}
}
/// <summary>
/// Creates a user data header out of information elements.
/// </summary>
/// <param name="element">The <see cref="T:GSMCommunication.PDUDecoder.SmartMessaging.InformationElement" /> instance to be stored in the header.</param>
/// <returns>A byte array containing the user data header.</returns>
/// <exception cref="T:System.ArgumentNullException">element is null.</exception>
/// <exception cref="T:System.ArgumentException">Element is too large, size exceeds 255 bytes.</exception>
public static byte[] CreateUserDataHeader(InformationElement element)
{
if (element != null)
{
byte[] byteArray = element.ToByteArray();
if ((int)byteArray.Length <= 255)
{
byte[] length = new byte[(int)byteArray.Length + 1];
length[0] = (byte)((int)byteArray.Length);
byteArray.CopyTo(length, 1);
return(length);
}
else
{
throw new ArgumentException("Element is to large, size exceeds 255 bytes.");
}
}
else
{
throw new ArgumentNullException("element");
}
}
/// <summary>
/// Creates a user data header out of information elements.
/// </summary>
/// <param name="elements">The <see cref="T:GSMCommunication.PDUDecoder.SmartMessaging.InformationElement" /> instances to be stored in the header.</param>
/// <returns>A byte array containing the user data header.</returns>
/// <exception cref="T:System.ArgumentNullException">elements is null.</exception>
/// <exception cref="T:System.ArgumentException">The sum of all elements is too large, size exceeds 255 bytes.</exception>
public static byte[] CreateUserDataHeader(InformationElement[] elements)
{
if (elements != null)
{
List<byte> nums = new List<byte>();
nums.Add(0);
int length = 0;
InformationElement[] informationElementArray = elements;
for (int i = 0; i < (int)informationElementArray.Length; i++)
{
InformationElement informationElement = informationElementArray[i];
byte[] byteArray = informationElement.ToByteArray();
nums.AddRange(byteArray);
length = length + (int)byteArray.Length;
}
if (length <= 255)
{
nums[0] = (byte)length;
return nums.ToArray();
}
else
{
throw new ArgumentException("The sum of all elements is too large, size exceeds 255 bytes.");
}
}
else
{
throw new ArgumentNullException("elements");
}
}
/// <summary>
/// Creates a user data header out of information elements.
/// </summary>
/// <param name="element">The <see cref="T:GSMCommunication.PDUDecoder.SmartMessaging.InformationElement" /> instance to be stored in the header.</param>
/// <returns>A byte array containing the user data header.</returns>
/// <exception cref="T:System.ArgumentNullException">element is null.</exception>
/// <exception cref="T:System.ArgumentException">Element is too large, size exceeds 255 bytes.</exception>
public static byte[] CreateUserDataHeader(InformationElement element)
{
if (element != null)
{
byte[] byteArray = element.ToByteArray();
if ((int)byteArray.Length <= 255)
{
byte[] length = new byte[(int)byteArray.Length + 1];
length[0] = (byte)((int)byteArray.Length);
byteArray.CopyTo(length, 1);
return length;
}
else
{
throw new ArgumentException("Element is to large, size exceeds 255 bytes.");
}
}
else
{
throw new ArgumentNullException("element");
}
}
