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| Query on Data Patterns |
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| kash3338 |
 Posted: Mon Feb 01, 2010 4:05 am Post subject: Query on Data Patterns |
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Shaman
Joined: 08 Feb 2009
Posts: 709
Location: Chennai, India
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Hi,
I have a scenario wherein i would be getting a variable length message as input and the message will contain String, Integer and Decimal values as a part of it.
I have created a message set for the same using Data Patterns and set the value of Data Pattern as "[A-Z a-z 0-9]*". Now when i test it with just String and Integer values, it works fine, but when i include a Decimal value in my input message, there is a parser error. How do i modify the Data Pattern value such that it accepts Decimal values as well?
- Kashyap. |
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| kimbert |
| Posted: Mon Feb 01, 2010 4:32 am Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5542
Location: Southampton
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| Quote: |
| I have a scenario wherein i would be getting a variable length message as input and the message will contain String, Integer and Decimal values as a part of it. |
I assume that this is a TDS message, but you don't actually say that.
Please can you provide an example input message - it makes it so much easier to discuss the details.
| Quote: |
| I have created a message set for the same using Data Patterns |
Can you explain why you are using data patterns? Is it not possible to use All Elements Delimited or Tagged Delimited?
| Quote: |
| Now when i test it with just String and Integer values, it works fine, but when i include a Decimal value in my input message, there is a parser error. |
C'mon. We're not mind-readers. Please quote the full text of the error message. If necessary, take a user trace - but the full text should be in the Windows Event Viewer if you're on Windows.
| Quote: |
| How do i modify the Data Pattern value such that it accepts Decimal values as well? |
Well, one difference between Decimal and Integer is that Decimal can contain a decimal separator ( e.g. decimal point or comma). |
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| kash3338 |
| Posted: Mon Feb 01, 2010 4:50 am Post subject: |
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Shaman
Joined: 08 Feb 2009
Posts: 709
Location: Chennai, India
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It is a TDS message set. I use Data Patterns because, this is a Variable length message and there is no delimiter for this as well, hence i cannot go with All Elements Delimited.
Also, i do have to select a particular Complex Type based on the first 5 bytes which can be acheived easily by using Data Patterns.
Sample Input Message : Rd001MyNameMyEmpNo12345Price100.00TotalCost2000.00
The above mentioned would be the structure of my input, where in the first five bytes determines the complextype and rest is data.
My doubt is, to accept the decimal values i need to specify the decimal point in the data patterns, how do i do that? |
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| mqjeff |
| Posted: Mon Feb 01, 2010 5:40 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| kash3338 wrote: |
| My doubt is, to accept the decimal values i need to specify the decimal point in the data patterns, how do i do that? |
In the manner specified in the documentation... ? Did you try the obvious thing of just putting in a "."?
Even variable-length, undelimited message can be parsed in TDS without using data patterns. Tagged-Fixed Length works great if you have fixed-length records, even if the whole message is variable length.
If you don't even have tags, then you probably do have to use Data Patterns. |
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| kimbert |
| Posted: Mon Feb 01, 2010 5:51 am Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5542
Location: Southampton
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| Quote: |
| i do have to select a particular Complex Type based on the first 5 bytes which can be acheived easily by using Data Patterns. |
...and even more easily using Tagged Delimited or Tagged Fixed Length.
You may not realize this, but you can use different Data Element Separation settings in the same message model. You could use Tagged Delimited to select the appropriate complex type and then use 'Use Data Pattern' ( if you really need to ) to parse the complex type itself. |
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