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Chapter 290. SAP NetWeaver Component

Available as of Camel version 2.12

The sap-netweaver integrates with the SAP NetWeaver Gateway using HTTP transports.

This camel component supports only producer endpoints.

Maven users will need to add the following dependency to their pom.xml for this component: 

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-sap-netweaver</artifactId>
    <version>x.x.x</version>
    <!-- use the same version as your Camel core version -->
</dependency>
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290.1. URI format
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The URI scheme for a sap netweaver gateway component is as follows 

sap-netweaver:https://host:8080/path?username=foo&password=secret
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You can append query options to the URI in the following format, ?option=value&option=value&…​

290.2. Prerequisites
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You would need to have an account to the SAP NetWeaver system to be able to leverage this component. SAP provides a demo setup where you can requires for an account.

This component uses the basic authentication scheme for logging into SAP NetWeaver.

290.3. SAPNetWeaver options
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The SAP NetWeaver component has no options.

The SAP NetWeaver endpoint is configured using URI syntax: 

sap-netweaver:url
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with the following path and query parameters:

290.3.1. Path Parameters (1 parameters):
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Expand
NameDescriptionDefaultType

url

Required Url to the SAP net-weaver gateway server.

 

String

290.3.2. Query Parameters (6 parameters):
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Expand
NameDescriptionDefaultType

flatternMap (producer)

If the JSON Map contains only a single entry, then flattern by storing that single entry value as the message body.

true

boolean

json (producer)

Whether to return data in JSON format. If this option is false, then XML is returned in Atom format.

true

boolean

jsonAsMap (producer)

To transform the JSON from a String to a Map in the message body.

true

boolean

password (producer)

Required Password for account.

 

String

username (producer)

Required Username for account.

 

String

synchronous (advanced)

Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).

false

boolean

290.4. Spring Boot Auto-Configuration
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The component supports 2 options, which are listed below.

Expand
NameDescriptionDefaultType

camel.component.sap-netweaver.enabled

Enable sap-netweaver component

true

Boolean

camel.component.sap-netweaver.resolve-property-placeholders

Whether the component should resolve property placeholders on itself when starting. Only properties which are of String type can use property placeholders.

true

Boolean

290.5. Message Headers
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The following headers can be used by the producer.

Expand
NameTypeDescription

CamelNetWeaverCommand

String

Mandatory: The command to execute in MS ADO.Net Data Service format.

290.6. Examples
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This example is using the flight demo example from SAP, which is available online over the internet here.

In the route below we request the SAP NetWeaver demo server using the following url 

https://sapes1.sapdevcenter.com/sap/opu/odata/IWBEP/RMTSAMPLEFLIGHT_2/
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And we want to execute the following command 

FlightCollection(AirLineID='AA',FlightConnectionID='0017',FlightDate=datetime'2012-08-29T00%3A00%3A00')
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To get flight details for the given flight. The command syntax is in MS ADO.Net Data Service format.

We have the following Camel route 

from("direct:start")
    .setHeader(NetWeaverConstants.COMMAND, constant(command))
    .toF("sap-netweaver:%s?username=%s&password=%s", url, username, password)
    .to("log:response")
    .to("velocity:flight-info.vm")
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Where url, username, password and command is defined as: 

    private String username = "P1909969254";
    private String password = "TODO";
    private String url = "https://sapes1.sapdevcenter.com/sap/opu/odata/IWBEP/RMTSAMPLEFLIGHT_2/";
    private String command = "FlightCollection(AirLineID='AA',FlightConnectionID='0017',FlightDate=datetime'2012-08-29T00%3A00%3A00')";
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The password is invalid. You would need to create an account at SAP first to run the demo.

The velocity template is used for formatting the response to a basic HTML page 

<html>
  <body>
  Flight information:

  <p/>
  <br/>Airline ID: $body["AirLineID"]
  <br/>Aircraft Type: $body["AirCraftType"]
  <br/>Departure city: $body["FlightDetails"]["DepartureCity"]
  <br/>Departure airport: $body["FlightDetails"]["DepartureAirPort"]
  <br/>Destination city: $body["FlightDetails"]["DestinationCity"]
  <br/>Destination airport: $body["FlightDetails"]["DestinationAirPort"]

  </body>
</html>
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When running the application you get sampel output: 

Flight information:
Airline ID: AA
Aircraft Type: 747-400
Departure city: new york
Departure airport: JFK
Destination city: SAN FRANCISCO
Destination airport: SFO
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290.7. See Also
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  • Configuring Camel
  • Component
  • Endpoint
  • Getting Started
  • HTTP
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