289.12. 示例 3:处理 SAP 的请求
概述
本例演示了一个路由,该路由处理从 SAP 到 BOOK_FLIGHT RFC 的请求,该路由实施该路由。此外,它展示了组件的 XML 序列化支持,使用 JAXB 总结和 marshal SAP 请求对象,并对自定义 Bean 的响应对象。
此路由代表旅游代理 FlightTrip 业务对象 FlightCustomer。路由首先不会编出 SAP 服务器端点接收的 SAP 请求对象到自定义 JAXB bean。然后,这个自定义 bean 可以在交换中多播到三个子路由,后者收集旅游代理、航班连接和乘客信息以创建航班行程。最后的子路由在 SAP 中创建飞行对象,如上例中所示。最终的子路由还会创建并返回一个自定义的 JAXB bean,它被 marshaled 到 SAP 响应对象,并由服务器端点返回。
用于路由的 Java DSL
示例路由的 Java DSL 如下:
DataFormat jaxb = new JaxbDataFormat("org.fusesource.sap.example.jaxb");
from("sap-srfc-server:nplserver:BOOK_FLIGHT")
.unmarshal(jaxb)
.multicast()
.to("direct:getFlightConnectionInfo",
"direct:getFlightCustomerInfo",
"direct:getPassengerInfo")
.end()
.to("direct:createFlightTrip")
.marshal(jaxb);用于路由的 XML DSL
同一路由的 XML DSL 如下:
<route>
<from uri="sap-srfc-server:nplserver:BOOK_FLIGHT"/>
<unmarshal>
<jaxb contextPath="org.fusesource.sap.example.jaxb"/>
</unmarshal>
<multicast>
<to uri="direct:getFlightConnectionInfo"/>
<to uri="direct:getFlightCustomerInfo"/>
<to uri="direct:getPassengerInfo"/>
</multicast>
<to uri="direct:createFlightTrip"/>
<marshal>
<jaxb contextPath="org.fusesource.sap.example.jaxb"/>
</marshal>
</route>BookFlightRequest bean
以下列表演示了一个 JAXB bean,它来自 SAP BOOK_FLIGHT 请求对象的序列化形式:
@XmlRootElement(name="Request", namespace="http://sap.fusesource.org/rfc/nplServer/BOOK_FLIGHT")
@XmlAccessorType(XmlAccessType.FIELD)
public class BookFlightRequest {
@XmlAttribute(name="CUSTNAME")
private String customerName;
@XmlAttribute(name="FLIGHTDATE")
@XmlJavaTypeAdapter(DateAdapter.class)
private Date flightDate;
@XmlAttribute(name="TRAVELAGENCYNUMBER")
private String travelAgencyNumber;
@XmlAttribute(name="DESTINATION_FROM")
private String startAirportCode;
@XmlAttribute(name="DESTINATION_TO")
private String endAirportCode;
@XmlAttribute(name="PASSFORM")
private String passengerFormOfAddress;
@XmlAttribute(name="PASSNAME")
private String passengerName;
@XmlAttribute(name="PASSBIRTH")
@XmlJavaTypeAdapter(DateAdapter.class)
private Date passengerDateOfBirth;
@XmlAttribute(name="CLASS")
private String flightClass;
...
}BookFlightResponse bean
以下列表演示了一个 JAXB bean,它被提供给 SAP BOOK_FLIGHT 响应对象的序列化形式:
@XmlRootElement(name="Response", namespace="http://sap.fusesource.org/rfc/nplServer/BOOK_FLIGHT")
@XmlAccessorType(XmlAccessType.FIELD)
public class BookFlightResponse {
@XmlAttribute(name="TRIPNUMBER")
private String tripNumber;
@XmlAttribute(name="TICKET_PRICE")
private BigDecimal ticketPrice;
@XmlAttribute(name="TICKET_TAX")
private BigDecimal ticketTax;
@XmlAttribute(name="CURRENCY")
private String currency;
@XmlAttribute(name="PASSFORM")
private String passengerFormOfAddress;
@XmlAttribute(name="PASSNAME")
private String passengerName;
@XmlAttribute(name="PASSBIRTH")
@XmlJavaTypeAdapter(DateAdapter.class)
private Date passengerDateOfBirth;
@XmlElement(name="FLTINFO")
private FlightInfo flightInfo;
@XmlElement(name="CONNINFO")
private ConnectionInfoTable connectionInfo;
...
}响应对象的复杂参数字段被序列化为响应的子元素。
FlightInfo bean
以下列表演示了一个 JAXB bean,它被提供给复杂结构参数 FLTINFO 的序列化形式:
@XmlRootElement(name="FLTINFO", namespace="http://sap.fusesource.org/rfc/nplServer/BOOK_FLIGHT")
@XmlAccessorType(XmlAccessType.FIELD)
public class FlightInfo {
@XmlAttribute(name="FLIGHTTIME")
private String flightTime;
@XmlAttribute(name="CITYFROM")
private String cityFrom;
@XmlAttribute(name="DEPDATE")
@XmlJavaTypeAdapter(DateAdapter.class)
private Date departureDate;
@XmlAttribute(name="DEPTIME")
@XmlJavaTypeAdapter(DateAdapter.class)
private Date departureTime;
@XmlAttribute(name="CITYTO")
private String cityTo;
@XmlAttribute(name="ARRDATE")
@XmlJavaTypeAdapter(DateAdapter.class)
private Date arrivalDate;
@XmlAttribute(name="ARRTIME")
@XmlJavaTypeAdapter(DateAdapter.class)
private Date arrivalTime;
...
}ConnectionInfoTable bean
以下列表演示了一个 JAXB bean,它过滤为复杂表参数 CONNINFO 的序列化形式。请注意,JAXB bean 的根元素类型的名称对应于以 _TABLE 后缀的行结构类型的名称,而 bean 包含行元素列表。
@XmlRootElement(name="CONNINFO_TABLE", namespace="http://sap.fusesource.org/rfc/nplServer/BOOK_FLIGHT")
@XmlAccessorType(XmlAccessType.FIELD)
public class ConnectionInfoTable {
@XmlElement(name="row")
List<ConnectionInfo> rows;
...
}ConnectionInfo bean
以下列表演示了 JAXB bean,它会被提供给上表中行元素的序列化形式:
@XmlRootElement(name="CONNINFO", namespace="http://sap.fusesource.org/rfc/nplServer/BOOK_FLIGHT")
@XmlAccessorType(XmlAccessType.FIELD)
public class ConnectionInfo {
@XmlAttribute(name="CONNID")
String connectionId;
@XmlAttribute(name="AIRLINE")
String airline;
@XmlAttribute(name="PLANETYPE")
String planeType;
@XmlAttribute(name="CITYFROM")
String cityFrom;
@XmlAttribute(name="DEPDATE")
@XmlJavaTypeAdapter(DateAdapter.class)
Date departureDate;
@XmlAttribute(name="DEPTIME")
@XmlJavaTypeAdapter(DateAdapter.class)
Date departureTime;
@XmlAttribute(name="CITYTO")
String cityTo;
@XmlAttribute(name="ARRDATE")
@XmlJavaTypeAdapter(DateAdapter.class)
Date arrivalDate;
@XmlAttribute(name="ARRTIME")
@XmlJavaTypeAdapter(DateAdapter.class)
Date arrivalTime;
...
}