I'm having a problem is sending(creating) an HL7 message using mirth.
I want to read data from my patient table in SQLSERVER 2008 and, using that data,
I want to send a message to my destination connector, a file writer. I want my messages to get saved in the file writer's output directory.
So far I'm able to generate the message, but the size of the output file in my destination directory is increasing as the channel's polling time goes on.
Have I done something wrong in the transformer mapping?
UPDATE:
The size of the output file in my destination directory IS increasing. (My .txt file starts from 1 kb and goes to 900kb and so on). This is happening becasue same data is getting generated again and again and multiple times too. for eg. my generated message has one(MSH,PID,PV1,ORM) for one row of data in my Database. The same MSH,PID, PV1 and ORM are getting generated multiple times.
If you are seeing the same data generated in your output directory multiple time, the most likely cause is that you are not doing anything to indicate to your database that a given record has been processed.
For example, if you have 1 record in your database: ["John", "Smith", "12134" ...] on the first poll, you will generate 1 message. If on the second poll you also have a second record ["Fred", "Jones", "98371" ...], you will generate TWO messages - one for John Smith and one for Fred Jones. And so on.
The key is to use the "Run On-Update Statement" of your Database Reader (Source) connector to update the database table you are polling with an indication that a given record has been processed. This ensures that the same record is not processed multiple times.
This requires that your source table have some kind of column to indicate the record has been processed. Mirth will not keep track of this for you - you must do it manually.
You can't have a file reader as a destination, so I assume you mean file writer. You say that "the size of my file in my destination is increasing." Is that a typo? Do you mean NOT increasing?
If it is increasing, then your messages are getting generated and you can view them to start your next round of troubleshooting...
If not, the you should look at the message log in the dashboard to see what is happening on a message-by-message basis - that would be the next place to troubleshoot.
You have to have a way of distinguishing what records to pull from the database by filtering on some sort of status flag or possible a time-stamp. Then, you have to use some sort of On-Update statement to mark these same records as processed.
i.e.
Select id, patient, result from results where status_flag='N'
or
Select * from results where status_flag = 'N' and created_date >= '9/25/2012'
Then, in either a transformer step or the On-Update section of your Source, you would do something like:
Update results
set status_flag = 'Y' where id=$(id)
If you do not do something like this and you have Mirth polling at a certain interval, it will just keep pulling the same records over and over.
You have to change your connector type as Database reader in source.
You have to change your connector type as file writer in the destination.
And you can write your data in the file, For which you have access to write.
while creating HL7 template you have to use the following code in outbound message template
MSH|^~\&|||
Thanks
Krishna
Related
I'm trying to see if there is data in a stream and I provided the exact stream name as follows :
Select SYSTEM$STREAM_HAS_DATA('STRM_EXACT_STREAM_NAME_GIVEN');
But, I get an error :
SQL compilation error: Invalid value ['STRM_EXACT_STREAM_NAME_GIVEN'] for function 'SYSTEM$STREAM_HAS_DATA', parameter 1: must be a valid stream name
1) Any idea why ? How can this error be resolved ?
2) Would it hurt to resume a set of tasks (alter task resume;) without knowing if the corresponding stream has data in it or not? I blv if there is (delta) data in the stream, the task will load it, if not, the task won't do anything.
3) Any idea how to modify / update a stream that shows up as 'STALE' ? - or should just loading fresh data into the table associated with the stream should set the stream as 'NOT STALE' i.e. stale = false ? what if loading the associated table does not update the state of the task? (and that is what is happening currently in my case, as things appear.
1) It doesn't look like you have a stream by that name. Try running SHOW STREAMS; to see what streams you have active in the database/schema that you are currently using.
2) If your task has a WHEN clause that validates against the SYSTEM$STREAM_HAS_DATA result, then resuming a task and letting it run on schedule only hits against your global services layer (no warehouse credits), so there is no harm there.
3) STALE means that the stream data wasn't used by a DML statement in a long time (I think its 14 days by default or if data retention is longer than 14 days, then it's the longer of those). Loading more data into the stream table doesn't help that. Running a DML statement will, but since the stream is stale, doing so may have bad consequences. Streams are meant to be used for frequent DML, so not running DML against a stream for longer than 14 days is very uncommon.
I am pretty new to Cumulocity and I am trying to get data into the platform from my own device using mqtt and the smartrest templates. I can get data in using the static templates but they only support certain data types. I am struggling to create the appropriate smartrest template in the UI and the documentation doesn't go into much detail.
I get that the template name goes in the MQTT topic (or selected on login as part of the username) in s/ut/template_name and the messageId of the messages in the template get matched to the first CSV field of the MQTT publish payload. What I don't get is the template terminology. In the UI I choose API->Measurement and Method->POST and I am presented with required values $.type and $.time. My questions:
Is $.type the "measurement fragment type" name or do I have to make it "c8y_CustomMeasurement"? Can I call it whatever I want?
$.time has a value field. Is this the default value if one is not supplied in the publish?
I assume I need to add a numerical value in the optional API values. To link it to the value of the data point should I make the key "c8y_CustomMeasurement.custom.value"?
Am I way off base here?
Every time I publish to my own smartrest template the server drops the connection so I assume its an error in my template setup but I don't see a way of accessing debug messages (also nothing is published back to me on s/e or s/dt).
For the sake of an example, lets say I wish to publish a unitless, timestamped pulse count with payload format "mId,ts,value" with example data "p01,'2017-07-17 12:34:00',1234"
What you wrote so far is mostly correct just to be a bit more precise:
The topic is s/uc/template_id (not the template name, this is just a label)
The $.type refers to the 'type' fragment in the measurement JSON. It is a free text field
In 99% of cases you want to leave the $.time empty. If you set something here it is not the default but fixed to that timestamp and you cannot change it when using the template. If you leave it empty and still not send something in
Example: p01,2017-07-17T12:34:00,1234 (no quotes arounf timestamp and ISO8601 format
Example without sending time: p01,,1234 (sending empty string as time results in server time beeing set. The template is the same)
Hope these points help you to find you issue
In my iOS application, I want to store some messages that I obtain from my remote server. However, instead of storing these messages forever, I want to purge, once I have a N number of messages; i.e., if my N is configured to be 10, I want to store 10 messages and on the arrival of the 11th message, I want to delete the 1st message.
Is there a standard way to do this in iOS ? I am yet to write the code to saving the messages, so choosing any method of saving is fine for me.
Store your messages in a file. After you get the message read your file's messages to an NSMutableArray, replace the most old message with new one and overwrite your file with new array data.
I dont think there is a straight fwd way.
The way I would do is have a table using SQLLite. Have 2 columns id(int, autoincrement), value(String). When inserting, if max(id) >=10 delete row with min(id) and insert the new value.
Ofcourse, this woud fail after it reached MAX_INT_VALUE. So if you thing you would never get to this value you are good.
I recently wrote a mailing platform for one of our employees to use. The system runs great, scales great, and is fun to use. However, it is currently inoperable due to a bug that I can't figure out how to fix (fairly inexperienced developer).
The process goes something like this...
Upload a CSV file to a specific FTP directory.
Go to the import_mailing_list page.
Choose a CSV file within the FTP directory.
Name and describe what the list contains.
Associate file headings with database columns.
Then, the back-end loops over each line of the file, associating the values with a heading, and importing these values into a database.
This all works wonderfully, except in a specific case, when a raw CSV is not correctly formatted. For example...
fname, lname, email
Bob, Schlumberger, bob#bob.com
Bobbette, Schlumberger
Another, Record, goeshere#email.com
As you can see, there is a missing comma on line two. This would cause an error when attempting to pull "valArray[3]" (or valArray[2], in the case of every language but mine).
I am looking for the most efficient solution to keep this error from happening. Perhaps I should check the array length, and compare it to the index we're going to attempt to pull, before pulling it. But to do this for each and every value seems inefficient. Anybody have another idea?
Our stack is ColdFusion 8/9 and MySQL 5.1. This is why I refer to the array index as [3].
There's ArrayIsDefined(array, elementIndex), or ArrayLen(array)
seems inefficient?
You gotta code what you need to code, forget about inefficiency. Get it right before you get it fast (when needed).
I suppose if you are looking for another way of doing this (instead of checking the array length each time, although that really doesn't sound that bad to me), you could wrap each line insert attempt in a try/catch block. If it fails, then stuff the failed row in a buffer (including the line number and error message) that you could then display to the user after the batch has completed, so they could see each of the failed lines and why they failed. This has the advantages of 1) not having to explicitly check the array length each time and 2) catching other errors that you might not have anticipated beforehand (maybe a value is too long for your field, for example).
A Cobol program with file-control like so:
SELECT D-FLAT-FILE ASSIGN TO DFLAT-FILE
ORGANIZATION IS INDEXED
ACCESS MODE IS SEQUENTIAL
FILE STATUS IS RECORD-STAT
RECORD KEY IS D_KEY OF D-FLAT-FILE DESCENDING WITH DUPLICATES.
SELECT C-MAST-FILE ASSIGN TO CMAST-FILE
ORGANIZATION IS INDEXED
ACCESS MODE IS DYNAMIC
FILE STATUS IS RECORD-STAT
RECORD KEY IS C_KEY OF C-MAST-FILE.
reads a record from the first flat file like so:
PROCESSING.
READ D-FLAT-FILE NEXT RECORD
AT END ....END READ.
and reads a record on the second DYNAMIC file like so:
READ C-MAST-FILE RECORD
INVALID KEY
GO TO PROCESSING.
All works well except for 1 case. If the 1st record from the 1st flat file does not match any records on the 2nd dynamic file, the program goes into an infinite loop instead of doing GO TO PROCESSING. I checked the manuals, all as per manual (it is the VAX Cobol). What am I missing?
Best practice is to use a different FILE STATUS variable for each file. In your case you haven't shown us enough context to see the problem. But if you are in a loop looking at RECORD-STAT, then it is possible that the failed read from C-MAST-FILE is giving you grief.