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This guide demonstrates a service for getting quotations, which uses business rules for creating quotations.
Sample Configuration
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Sample Rule Definition
Rules
Rule 1: If the customer has bronze status, then the item costs five dollars.
Rule 2 : If the customer has silver status, then the item costs four dollars.
Rule 3 : If the customer has gold status, then the item costs three dollars.
Facts
There is a fact named A customer made a get quote request. Quotation is used to capture the result of the rules execution.
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package samples.userguide;
package samples.quotation;
/**
* Customer fact
*/
public class Customer {
private String status;
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
}
package samples.quotation;
/**
* Quotation result
*/
public class Quotation {
private int price;
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}
}
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Rule Service Configuration (service.rsl)
An in-line rule set is used within the service.rsl file as follows:
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<ruleService
name="GetQuoteService"
xmlns="http://wso2.org/carbon/rules"
targetNamespace="http://com.test/quotation">
<ruleSet>
<rule resourceType="regular" sourceType="inline">
<![CDATA[
package quotation
import samples.quotation.Customer;
import samples.quotation.Quotation;
rule "Gold Customer"
when
Customer( status == "gold" )
then
Quotation q = new Quotation();
q.setPrice(3);
insertLogical(q);
end
rule "Silver Customer"
when
Customer( status == "silver" )
then
Quotation q = new Quotation();
q.setPrice(4);
insertLogical(q);
end
rule "Bronze Customer"
when
Customer( status == "bronze" )
then
Quotation q = new Quotation();
q.setPrice(5);
insertLogical(q);
end
]]>
</rule>
</ruleSet>
<operation name="getQuote">
<input wrapperElementName="placeCustomerDetail" namespace="http://com.test/placeCustomerDetail">
<fact elementName="customerDetail" namespace="http://com.test/placeCustomerDetail" type="samples.quotation.Customer"></fact>
</input>
<output wrapperElementName="placeCustomerDetailRespone" namespace="http://com.test/placeCustomerDetail">
<fact elementName="getQuotation" namespace="http://com.test/placeCustomerDetail" type="samples.quotation.Quotation"></fact>
</output>
</operation>
</ruleService> |
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