I'm using Apache Camel version 2.15.1. My route has a splitter which splits the body in chunks and each chunk is saved into database. I would like to log a progress of this route. Unfortunately CamelSplitIndex header is 0-based, how do I do "+ 1" using XML DSL?
<route id="insertInDb">
<from uri="direct:listOfDataInBodyArrivesHere" />
<split>
<simple>${body}</simple>
<log message="Insert ${header.CamelSplitIndex} of ${header.CamelSplitSize}" />
<to uri="mybatis:insertData?statementType=Insert" />
</split>
<log message="Insert done" />
</route>
The output is
Insert 0 of 3
Insert 1 of 3
Insert 2 of 3
My desired output is
Insert 1 of 3
Insert 2 of 3
Insert 3 of 3
How do I achieve the desired output? I tried with ${header.CamelSplitIndex++} with no result.
I think it should be ${header.CamelSplitIndex}++
Related
I am new to camel sql-stored component. Currently I am using Camel 2.17.5. And I am trying to invoke oracle stored procedure from camel route. This is my route:
<setHeader headerName="test">
<simple>John</simple>
</setHeader>
<log loggingLevel="INFO" message="value: ${headers.test}" />
<to uri="sql-stored:HELLO(VARCHAR ${headers.test},OUT VARCHAR outparam1)?dataSource=oracleDataSource"/>
<log loggingLevel="INFO" message="SP result: ${body}" />
This is my stored procedure:
CREATE OR REPLACE PROCEDURE hello(param1 IN varchar2, outparam1 OUT varchar2)
AS
BEGIN
select password INTO outparam1 from dbuser WHERE USERNAME=param1;
END;
But when I run my route it gives me error:
org.apache.camel.component.sql.stored.template.ast.ParseRuntimeException: org.apache.camel.component.sql.stored.template.generated.ParseException: Encountered " " " " "" at line 1, column 35.
Was expecting one of:
<NUMBER> ...
<IDENTIFIER> ...
at org.apache.camel.component.sql.stored.template.TemplateParser.parseTemplate(TemplateParser.java:36)
at org.apache.camel.component.sql.stored.CallableStatementWrapperFactory.getTemplateStoredProcedure(CallableStatementWrapperFactory.java:71)
could you help me, what is wrong here?
As pointed above Claus it was my syntax error. I just removed double spaces and it works!
So invokation line should be like this:
<to uri="sql-stored:hello(VARCHAR ${headers.test},OUT VARCHAR outparam1)?dataSource=oracleDataSource"/>
I follow this post[1] as a guide to build an example of query an array of UDT in WSO2 DSS. In the post just query an UDT, my config try to query an UDT array.
I created this in my DB, a dummy PROCEDURE to try this:
create or replace
TYPE "LIST_CUSTOMERS" IS TABLE OF customer_t
CREATE OR REPLACE
PROCEDURE getCustomer2(listcust OUT list_customers) IS
cust customer_t;
cust2 customer_t;
BEGIN
listcust := list_customers();
cust := customer_t(1, 'prabath');
cust2 := customer_t(2, 'jorge');
listcust.extend;
listcust(1) := cust;
listcust.extend;
listcust(2) := cust2;
END;
My DS is this:
<?xml version="1.0" encoding="UTF-8"?>
<data name="UDTSample2">
<config id="default">
<property name="org.wso2.ws.dataservice.driver">oracle.jdbc.driver.OracleDriver</property>
<property name="org.wso2.ws.dataservice.protocol">jdbc:oracle:thin:#localhost:1521:DBMB</property>
<property name="org.wso2.ws.dataservice.user">****</property>
<property name="org.wso2.ws.dataservice.password">****</property>
</config>
<query id="q3" useConfig="default">
<sql>call getCustomer2(?)</sql>
<result element="customers">
<element name="customer" arrayName="custArray" column="cust" optional="true"/>
</result>
<param name="cust" paramType="ARRAY" sqlType="ARRAY" type="OUT" structType="LIST_CUSTOMERS" />
</query>
<operation name="op3">
<call-query href="q3" />
</operation>
</data>
ant return:
<customers xmlns="http://ws.wso2.org/dataservice">
<customer>{1,prabath}</customer>
<customer>{2,jorge}</customer>
</customers>
but I want something like this:
<customers xmlns="http://ws.wso2.org/dataservice">
<customer>
<id>1</id>
<name>prabath<name>
</customer>
<customer>
<id>2</id>
<name>Jorge<name>
</customer>
</customers>
How can I accomplish this?
[1] http://prabathabey.blogspot.com/2012/05/query-udtsuser-defined-types-with-wso2.html
Not sure whether this kind of transformation can be done at DSS level because DSS gives back what it recieves from database. Better use WSO2 esb for this kind of transformation.
By the moment it's not possible to accomplish this scenario using just DSS. the DS response must be send to the WSO2 ESB to do the corresponding transformation before send the response to the client. A JIRA was created to do this in the future https://wso2.org/jira/browse/DS-1104
As a workaround, you can use a procedure returning a sys_refcursor.
It would look like this:
PROCEDURE getCustomer_CUR(cur_cust OUT SYS_REFCURSOR)
l_cust LIST_CUSTOMERS;
IS
-- Retrieve cust list:
getCustomer2(l_cust);
OPEN cur_cust for
select cast(multiset(select * from TABLE(l_cust)) as customer_t) from dual;
...
END;
Then you can do your DSS mapping something like:
<sql>call getCustomer_CUR(?)</sql>
<result element="customers">
<element arrayName="custArray" name="Customers">
<element column="custArray[0]" name="col0" xsdType=.../>
...
</element>
</result>
<param name="cust" sqlType="ORACLE_REF_CURSOR" type="OUT"/>
It is tedious but it works.
I need to get some information from XML in SQL Server 2008, but I cannot even get basic attribute from it. All samples that I tried failed. Table name is Item, xml column name is Data.
Simplified xml looks like this:
<AnchoredXml xmlns="urn:schema:Microsoft.Rtc.Management.ScopeFramework.2008" SchemaWriteVersion="2">
<Key ScopeClass="Global">
<SchemaId Namespace="urn:schema:Microsoft.Rtc.Management.Deploy.Topology.2008" ElementName="Topology" />
<AuthorityId Class="Host" InstanceId="00000000-0000-0000-0000-000000000000" />
</Key>
<Dictionary Count="1">
<Item>
<Key />
<Value Signature="a3502dd0-8c16-4023-9eea-30ea1c7a3a2b">
<Topology xmlns="urn:schema:Microsoft.Rtc.Management.Deploy.Topology.2008">
<Services>
<Service RoleVersion="1" ServiceVersion="6" Type="Microsoft.Rtc.Management.Deploy.Internal.ServiceRoles.FileStoreService">
<ServiceId SiteId="1" RoleName="FileStore" Instance="1" />
<DependsOn />
<InstalledOn>
<ClusterId SiteId="1" Number="1" />
</InstalledOn>
<Ports xmlns="urn:schema:Microsoft.Rtc.Management.Deploy.ServiceRoles.2008" />
<FileStoreService xmlns="urn:schema:Microsoft.Rtc.Management.Deploy.ServiceRoles.2008" ShareName="lyncShare" />
</Service>
</Services>
</Topology>
</Value>
</Item>
</Dictionary>
</AnchoredXml>
I need to read information in AnchoredXml/Key/SchemaId/#NameSpace to select the right xml (there are more rows). Sample xml above is the right one. And after that I need to find the right service with
Type="Microsoft.Rtc.Management.Deploy.Internal.ServiceRoles.FileStoreService"
where is FileStoreService/#ShareName that I need.
I've tried to print the Namespace attributte for the start, but no sample code is working.
A few tries:
SELECT c.p.value('(#Namespace)[1]', 'varchar(50)') as 'Nmspace'
FROM Item
CROSS APPLY Data.nodes('/AnchoredXml/Key/SchemaId') c(p)
returns empty result set
SELECT Data.value('(/AnchoredXml/Key/SchemaId/#Namespace)[1]', 'varchar(50)')
FROM Item
returns NULL for all rows
SELECT
It.Data.exist('/AnchoredXml/Key/SchemaId[#Namespace="Microsoft.Rtc.Management.Deploy.Topology.2008"]')
FROM [xds].[dbo].[Item] AS It
returns 0's for all rows also without quotes ("")
A working sample code to get at least attribute test would be maybe sufficient and I would figure out the rest.
Could you please help me find errors in my queries or maybe identify some other problem?
Thanks
You're ignoring all the XML namespaces in your XML document! You need to pay attention to those and respect them!
There are XML namespaces on:
the root node <AnchoredXml>
(XML namespace: urn:schema:Microsoft.Rtc.Management.ScopeFramework.2008)
the subnode <Topology>
(XML ns: urn:schema:Microsoft.Rtc.Management.Deploy.Topology.2008)
the subnode <FileStoreService>
(XML ns: urn:schema:Microsoft.Rtc.Management.Deploy.ServiceRoles.2008)
Try this:
-- respect the XML namespaces!!
;WITH XMLNAMESPACES(DEFAULT 'urn:schema:Microsoft.Rtc.Management.ScopeFramework.2008',
'urn:schema:Microsoft.Rtc.Management.Deploy.Topology.2008' AS t,
'urn:schema:Microsoft.Rtc.Management.Deploy.ServiceRoles.2008' AS fss)
SELECT
ShareName = Data.value('(/AnchoredXml/Dictionary/Item/Value/t:Topology/t:Services/t:Service/fss:FileStoreService/#ShareName)[1]', 'varchar(50)')
FROM
dbo.Item
In my case, this returns:
ShareName
-----------
lyncShare
I have an XML column in a large table that looks like this, in TSQL how would i count the number of times an attribute (LCPID) occurs?
Thanks,
The code:
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<PingAutoRequest xmlns="http://Reply.LeadMarketPlace.Services.Ping.ServiceContracts/2007/10/ServiceContracts">
<AutomotiveLead>
<LCPId>766</LCPId>
<Zipcode>33544</Zipcode>
<Make>Ford</Make>
<Model>Escape</Model>
<LeadType>New</LeadType>
<Year>2013</Year>
<Trim>FWD S</Trim>
<ExteriorColor />
<InteriorColor />
<Transmission />
<TradeIn>false</TradeIn>
<LastFourPhoneDigits />
<LastName />
</AutomotiveLead>
</PingAutoRequest>
</soap:Body>
</soap:Envelope>
OK, as your XML doesn't contain any attributes (apart from the namespaces) I'm going to assume you mean you want to count the number of <LCPId> elements. If so, then you could do that like this...
;WITH XMLNAMESPACES ('http://Reply.LeadMarketPlace.Services.Ping.ServiceContracts/2007/10/ServiceContracts' as ns)
SELECT XmlColumn.value('(count(//ns:LCPId))','int')
FROM YourTableName
Note, we need to handle the XML namespace using the WITH statement, the semi-colon is not a mistake. Then we count the number of elements with an XPath expression count(//ns:LCPId).
You can see it in action at SQL Fiddle here.
Here is my problem: from the following XML that is within a column, I want to know if the value of a variable with the name 'Enabled' is equal to 'Yes' given a step Id and a component Id.
'<xml>
<box stepId="1">
<components>
<component id="2">
<variables>
<variable id="3" nom="Server" valeur="DEV1" />
<variable id="4" nom="Enabled" valeur="Yes" />
</variables>
</component>
<component id="3">
<variables>
<variable id="3" nom="Server" valeur="DEV1" />
<variable id="4" nom="Enabled" valeur="No" />
</variables>
</component>
</components>
</box>
<box stepId="2">
<components>
<component id="2">
<variables>
<variable id="3" nom="Server" valeur="DEV2" />
<variable id="4" nom="Enabled" valeur="Yes" />
</variables>
</component>
<component id="3">
<variables>
<variable id="3" nom="Server" valeur="DEV2" />
<variable id="4" nom="Enabled" valeur="No" />
</variables>
</component>
</components>
</box>
</xml>'
XQuery Against the xml Data Type
General XQuery Use Cases
XQueries Involving Hierarchy
XQueries Involving Order
Anything in Michael Rys blog
Update
My recomendation would be to shred the XML into relations and do searches and joins on the resulted relation, in a set oriented fashion, rather than the procedural fashion of searching specific nodes in the XML. Here is a simple XML query that shreds out the nodes and attributes of interest:
select x.value(N'../../../../#stepId', N'int') as StepID
, x.value(N'../../#id', N'int') as ComponentID
, x.value(N'#nom',N'nvarchar(100)') as Nom
, x.value(N'#valeur', N'nvarchar(100)') as Valeur
from #x.nodes(N'/xml/box/components/component/variables/variable') t(x)
However, if you must use an XPath that retrieves exactly the value of interest:
select x.value(N'#valeur', N'nvarchar(100)') as Valeur
from #x.nodes(N'/xml/box[#stepId=sql:variable("#stepID")]/
components/component[#id = sql:variable("#componentID")]/
variables/variable[#nom="Enabled"]') t(x)
If the stepID and component ID are columns, not variables, the you should use sql:column() instead of sql:variable in the XPath filters. See Binding Relational Data Inside XML Data.
And finaly if all you need is to check for existance you can use the exist() XML method:
select #x.exist(
N'/xml/box[#stepId=sql:variable("#stepID")]/
components/component[#id = sql:variable("#componentID")]/
variables/variable[#nom="Enabled" and #valeur="Yes"]')
I always go back to this article SQL Server 2005 XQuery and XML-DML - Part 1 to know how to use the XML features in SQL Server 2005.
For basic XPath know-how, I'd recommend the W3Schools tutorial.
I think the xpath query you want goes something like this:
/xml/box[#stepId="$stepId"]/components/component[#id="$componentId"]/variables/variable[#nom="Enabled" and #valeur="Yes"]
This should get you the variables that are named "Enabled" with a value of "Yes" for the specified $stepId and $componentId. This is assuming that your xml starts with an tag like you show, and not
If the SQL Server 2005 XPath stuff is pretty straightforward (I've never used it), then the above query should work. Otherwise, someone else may have to help you with that.