Java Cloud Service (JCS) provides a platform to develop and deploy business applications in the cloud. In Fusion Applications Cloud deployments customers do not have the option to deploy custom applications developed with JDeveloper to ensure the integrity and supportability of the hosted application service. Instead the custom applications can be deployed to the JCS and integrated to the Fusion Application Cloud instance.This series of articles will go through the features of JCS, provide end-to-end examples on how to develop and deploy applications on JCS and how to integrate them with the Fusion Applications instance.In this article a custom application integrating with Fusion Application using Web Service Data Control will be implemented.
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Pre-requisites
Access to Cloud instance
In order to deploy the
application access to a JCS instance is needed, a free trial JCS instance can
be obtained from Oracle Cloud site. To register you will need a credit card
even if the credit card will not be charged. To register simply click "Try
it" and choose the "Java" option. The confirmation email will
contain the connection details. See this video for example of the
registration.
Once the request is
processed you will be assigned 2 service instances; Java and Database. Applications
deployed to the JCS must use Oracle Database Cloud Service as their underlying
database. So when JCS instance is created a database instance is associated
with it using a JDBC data source.
The cloud services can
be monitored and managed through the web UI. For details refer to Getting
Started with Oracle Cloud.
JDeveloper
JDeveloper contains
Cloud specific features related to e.g. connection and deployment. To use these
features download the JDeveloper from JDeveloper
download site by clicking the “Download JDeveloper 11.1.1.7.1 for ADF
deployment on Oracle Cloud” link, this version of JDeveloper will have the JCS
integration features that will be used in this article. For versions that do not include the Cloud
integration features the Oracle Java Cloud Service SDK or the JCS Java
Console can be used for deployment.
For details on
installing and configuring the JDeveloper refer to the installation
guide. For details on SDK refer to Using
the Command-Line Interface to Monitor Oracle Java Cloud Service and Using
the Command-Line Interface to Manage Oracle Java Cloud Service.
Create Application
In this example the
“JcsWsDemo” application created in the “Java Cloud Service Integration using
Web Service Proxy” article is used as the base.
Create Web Service Data Control
In this example we
will use a Web Service Data Control to integrate with Credit Rule Service in
Fusion Applications. The data control will be used to query data from Fusion
Applications using a web service call and present the data in a table. To
generate the data control choose the “Model” project and navigate to "New
-> All Technologies -> Business Tier -> Data Controls -> Web Service
Data Control" and enter following:
Name: CreditRuleServiceDC
URL: https://ic-[POD].oracleoutsourcing.com/icCnSetupCreditRulesPublicService/CreditRuleService?WSDL
Service:
{{http://xmlns.oracle.com/apps/incentiveCompensation/cn/creditSetup/creditRule/creditRuleService/}CreditRuleService
On step 2 select the
“findRule” operation:
Skip step 3 and on
step 4 define the credentials to access the service. Do note that in this
example these credentials are only used if testing locally, for JCS deployment
credentials need to be manually updated on the EAR file:
Click “Finish” and the
proxy generation is done.
Creating UI
In order to use the
data control we will need to populate complex objects FindCriteria and
FindControl. For simplicity in this example we will create logic in a managed
bean that populates the objects. Open “JcsWsDemoBean.java” and add the
following logic:
Map findCriteria;
Map findControl;
public void setFindCriteria(Map findCriteria) {
this.findCriteria = findCriteria;
}
public Map getFindCriteria() {
findCriteria = new HashMap();
findCriteria.put("fetchSize",10);
findCriteria.put("fetchStart",0);
return findCriteria;
}
public void setFindControl(Map findControl) {
this.findControl = findControl;
}
public Map getFindControl() {
findControl = new HashMap();
return findControl;
}
Open “JcsWsDemo.jspx”, navigate to “Data
Controls -> CreditRuleServiceDC -> findRule(Object, Object) -> result”
and drag and drop the “result” node into the “af:form” element in the page:
On the “Edit Table
Columns” remove all columns except “RuleId” and “Name”:
On the “Edit Action Binding” window displayed
enter reference to the java class created above by selecting “#{JcsWsDemoBean.findCriteria}”:
Also define the value
for the “findControl” by selecting “#{JcsWsDemoBean.findControl}”.
Deploy to JCS
For WS DC the
authentication details need to be updated on the connection details before
deploying. Open “connections.xml” by navigating “Application Resources ->
Descriptors -> ADF META-INF -> connections.xml”:
Change the user name
and password entry from:
<soap username="transportUserName" password="transportPassword"
To match the access
details for the target environment. Follow the same steps
as documented in previous article ”Java
Cloud Service ADF Web Application”. Once deployed the application can be
accessed with URL:
https://java-[identity
domain].java.[data center].oraclecloudapps.com/JcsWsDemo-ViewController-context-root/faces/JcsWsDemo.jspx
When accessed the
first 10 rules in the system are displayed:
Summary In
this article we learned how to integrate with Fusion Applications using a Web Service
Data Control in JCS. In future articles various other integration techniques
will be covered.
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