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Facts
There is one fact named patient. The result of the rule execution is dosage.
| Code Block | ||
|---|---|---|
| ||
package samples.heathcare;
/**
* Patient
*/
public class Patient {
private String medication;
private int age;
private double creatinineLevel;
public String getMedication() {
return medication;
}
public void setMedication(String medication) {
this.medication = medication;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public double getCreatinineLevel() {
return creatinineLevel;
}
public void setCreatinineLevel(double creatinineLevel) {
this.creatinineLevel = creatinineLevel;
}
}
package samples.heathcare;
/**
* Dose
*/
public class Dose {
private String message;
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
} |
Rule Service Configuration (service.rsl)
An in-line rule set is used within the service.rsl file as follows.
| Code Block | ||
|---|---|---|
| ||
<ruleService
name="HealthCareService"
xmlns="http://wso2.org/carbon/rules"
targetNamespace="http://com.test/HeathCareService">
<ruleSet>
<rule resourceType="regular" sourceType="inline">
<![CDATA[
package HeathCareService
import samples.heathcare.Patient;
import samples.heathcare.Dose;
rule "Rule one" no-loop true
when
Patient( ( medication in ( "Amoxicillin", "Cefuroxime", "Levofloxacin" ) ) && ( ( age > 16 ) && ( age < 60 ) ) && ( creatinineLevel == 0 ) )
then
Dose msg = new Dose();
msg.setMessage("500 mg every 24 hours for 14 days");
insertLogical(msg);
end
rule "Rule two" no-loop true
when
Patient( ( medication in ( "Amoxicillin", "Cefuroxime", "Levofloxacin" ) ) && ( ( age > 16) && ( age < 60 ) ) && ( ( creatinineLevel > 0 ) && ( creatinineLevel < 1.5 ) ) )
then
Dose msg = new Dose();
msg.setMessage("250 mg every 24 hours for 14 days");
insertLogical(msg);
end
]]>
</rule>
</ruleSet>
<operation name="recommendDose">
<input wrapperElementName="patientDetail" namespace="http://com.test/patientDetail">
<fact elementName="patientDetail" namespace="http://com.test/patientDetail" type="samples.heathcare.Patient"></fact>
</input>
<output wrapperElementName="patientDetailRespone" namespace="http://com.test/patientDetail">
<fact elementName="recommendDose" namespace="http://com.test/patientDetail" type="samples.heathcare.Dose"></fact>
</output>
</operation>
</ruleService> |
Executing the Sample
To execute the sample, run the ant command from the <BRS_Home>/samples/greeting.service directory to run the HealthCare Service.
| Info |
|---|
Before executing this sample, it is recommended that you refer Exposing Rules as Services which explains in detail the process of writing and deploying a business rule. |
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