I'm using WSO2 DSS and I'm interested in how to expose a single row/column result of a query as a string, and not as an array entry.
So for example if I have query: Select 'test' as t From dual;
It will return only one row with one column, so I don't want the result to be enclosed in like below
<Entry>
<t>test</t>
</Entry>
instead I would like to have just
<t>test</t>
as a response.
Is such a thing possible with dss? what type of output mapping needs to be used in such a case?
In DSS you can add XSLT to extract the test from your response.
There is an field called XSLT Path in Result (output mapping) section. You can give the configuration registry path or governance registry path for that xslt to do that.
Related
I'm having trouble to pass a list of string I'm getting back from my bean to my sql-component query to make a call to the database.
<bean ref="fo" method="transformTo(${body})" />
So in this upper line of code I'm taking data from the body that is an xml and transform it to json.
<bean ref="fot" method="getOTs(${body})" />
Then I'm extracting the part I want from the json and return a list of string (method signature) :
public List<String> getOTs(String jsonOTs)
Now the part that isn't working (I'm getting that one parameter is expected but there are a couple each time)
<to uri="sql:insert into dbo.table_example (OT) VALUES :#body;"/>
My goal is quite simple, retrieving a list of string from my bean (working) and making and an insert into query. I have only one parameter but multiple values. Example:
INSERT INTO table_name (column_list)
VALUES
(value_list_1),
(value_list_2),
...
(value_list_n);
Example taken from here
Bulk insert
For a bulk insert, you need to set the query parameter batch to true, this way, Camel will understand that you want to insert several rows in one batch.
Here is the corresponding to endpoint in your case:
<to uri="sql:insert into dbo.table_example (OT) VALUES (#)?batch=true"/>
Miscellaneous remarks
Actually, for all the use cases that you listed above, you have no need to explicitly refer to the body.
Indeed, in the case of a bean, you could only specify the method to invoke, Camel is able to inject the body as a parameter of your method and automatically converts it into the expected type which is String in your case.
Refers to https://camel.apache.org/manual/bean-binding.html#_parameter_binding for more details.
Regarding the SQL producer, assuming that you did not change the default configuration, the proper way is to rather use the placeholder that is # by default, Camel will automatically use the content of the body as parameters of the underlying PreparedStatement.
So you should retry with:
<to uri="sql:insert into dbo.table_example (OT) VALUES (#)"/>
If you really want to explicitly refer to the body in your query, you can rather use :#${body} as next:
<to uri="sql:insert into dbo.table_example (OT) VALUES (:#${body})"/>
Misuse of named parameter
If you only use #body as you did, Camel interprets it as a named parameter so it will try to get the value from the body if it is a map by getting the value of the key body otherwise it will try to get the value of the header body but in your case, there are no such values, therefore, you end up with an error of type
Cannot find key [body] in message body or headers to use when setting named
parameter in query [insert into developers (name) values :?body;] on the exchange
Having used evtx_dump.py to convert .evtx files to .xml i seek to learn how to query it using XQuery or whatever helps me datamine the document using BaseX.
At this point whatever i try i can only query the whole document using //Events
When i define a path such as //Events/Event/System/[EventID = '4688'] i get 0 results.
This first query is to simply track all specific EventID matching a specific value.
Being new to BaseX and XQuery i found the documentation hard to apply to this use case.
I looked for tools to help me build an XQuery to no avail.
BaseX has all index features enabled i could find.
Br,
Joris
When XQuery fails to return data you are expecting it is often caused by the presence XML namespaces.
The Microsoft XML event log uses a XML namespace on Event nodes and it is inherited by their children. This is the xmlns='http://schemas.microsoft.com/win/2004/08/events/event' you can see in the files. E.g
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<Events><Event xmlns='http://schemas.microsoft.com/win/2004/08/events/event'>
<System><Provider Name='SideBySide'/><EventID Qualifiers='49409'>59</EventID><Version>0</Version>
...
Your XQuery must adjust for that. Either by saying any namespace is ok (using *:)
//*:System/[*:EventID = '4688']
or by explicitly specifing the expected namespaces.
declare namespace ns="http://schemas.microsoft.com/win/2004/08/events/event";
/Events/ns:Event/ns:System[ns:EventID= '4688' ]
See this similar issue xquery-not-working-with-namespaces
So I have the following SOQL query that includes the ActivityHistories relationship of the Account object:
SELECT Id, Name, ParentId, (SELECT Description FROM ActivityHistories)
FROM Account
WHERE Name = '<some client>'
This query works just in in SOQLXplorer and returns 5 nested rows under the ActivityHistories key. In Talend, I am following the instructions from this page to access the sub-objects (although the example uses the query "up" syntax, not the query "down" syntax. My schema mapping is as follows:
The query returns the parent Account rows but not the ActivityHistory rows that are in the subquery:
Starting job GetActivities at 15:43 22/06/2016.
[statistics] connecting to socket on port XXXX
[statistics] connected
0X16000X00fQd61AAC|REI||
[statistics] disconnected
Job GetActivities ended at 15:43 22/06/2016. [exit code=0]
Is it possible to reference the subrows using Talend? If so, what is the syntax for the schema to do so? If not, how can I unpack this data in some ay to get to the Description fields for each Account? Any help is much appreciated.
Update: I have written a small python script to extract the ActivityHistory records and dump them in a file, then used a tFileInput to ingest the CSV and then continue through my process. But this seems very kludgey. Any better options out there?
I've done some debugging from the code perspective and it seems that if you specify correct column name, you will achieve the correct response. For your example, it should be: Account_ActivityHistories_records_Description
The output from tLogRow will be similar to:
00124000009gSHvAAM|Account1|tests;Lalalala
As you can see, the Description from all child elements are stored as 1 string, delimited by the semicolon. You can change the delimiter on Advanced Settings view on the SalesforceInput.
I have written a small python script (source gist here) to extract the ActivityHistory records and dump them in a file (command line argument), then used a tFileInput to ingest the CSV and then continue through my process.
When I try to store a XML in SQL than have an empty Element, SQL just change it and store it with only one tag for the element.
For Example the XML to store is:
<ROOT>
<FIRSTNAME>ROGER</FIRSTNAME>
<MIDDLENAME></MIDDLENAME>
</ROOT>
Then Sql stored it like
<ROOT>
<FIRSTNAME>ROGER</FIRSTNAME>
<MIDDLENAME />
</ROOT>
The sql update is just very simple:
UPDATE
SESIONESREPORTES
SET
SER_PARAMETROS = '
<ROOT>
<FIRSTNAME>ROGER</FIRSTNAME>
<MIDDLENAME></MIDDLENAME>
</ROOT>'
WHERE SER_ID=7
I need like this because I have some query that fails when a element is empty, you can see it here..
Merging many rows in a single
I don't think you can, looking at the following link:
XML Data Type and Columns
According to this (XML Storage Options Section):
The data is stored in an internal representation that preserves the
XML content of the data. This internal representation includes
information about the containment hierarchy, document order, and
element and attribute values. Specifically, the InfoSet content of the
XML data is preserved. For more information about InfoSet, visit
http://www.w3.org/TR/xml-infoset. The InfoSet content may not be an
identical copy of the text XML, because the following information is
not retained: insignificant white spaces, order of attributes,
namespace prefixes, and XML declaration.
So the internal storage will strip out all parts it deems unnecessary, the document goes on to state that if you need an exact copy of the XML document and not just the content, you should use either [n]varchar(max) or varbinary(max)
<MIDDLENAME></MIDDLENAME>
and
<MIDDLENAME/>
are equivalent; any XML parser will treat them identically - as an empty element. If your query fails on an empty element, it will fail on either of them. You'll need to either rewrite your query to handle empty elements, put some content in the <MIDDLENAME> element, or omit the element entirely (if your query can handle it's absence.)
I want to read Database result into variables so I can use it for later requests.
How can i do it?
What if i want to return from database multiple
columns, or even rows? can loop the returned table same way i can
with "CSV Data Set Config"?
--edit--
Ok, i found this solution that uses regular expression to parse the response, but this solution and other like it doesn't work for me, because they require me to change SQL queries so Jmeter could parse them more "easily". I'm using Jmeter to do testing (load testing), and the last thing I want is to maintain 2 different codes, one for "testing" and other for "runtime".
Is there a "specific" JDBC Request solution that enable me to read result into variables using the concept of result-sets and columns?
Using The Regular Expression shouldn't affect what your SQL statement looks like. If you need to modify which part of the response you store in variable, use a Beanshell sampler with java code to parse out the response and store into a variable.
You can loop through the returned table, by using a FOREACH controller, referencing the variable name in the reg ex. Make sure in your reg ex, you set the match value to -1 to capture every possible match.