Introduction
============
This quickstart demonstrates the usage of the Camel SAP and it's binding feature, by retrieving a message from SAP ABAP program invocation and creating a flight booking data into SAP tables. This quickstart needs SAP instance and Flight Data Application to be setup on it (It should be done by just executing SAPBC_DATA_GENERATOR from ABAP editor. See http://help.sap.com/saphelp_erp60_sp/helpdata/en/db/7c623cf568896be10000000a11405a/content.htm for more details). The SAP JCo library is also needed to be setup as a JBoss module.
This example application is originally created for JBoss Fuse camel-sap, and then imported as a SwitchYard quickstart. You can also see the original README here
    https://github.com/fabric8io/fabric8/blob/6.1.x/fabric/fabric8-karaf/src/main/resources/distro/fabric/import/fabric/configs/versions/1.0/profiles/example-camel-sap/ReadMe.md

Creating SAP JCo JBoss module
=============================
sapjco3.jar and libsapjco3.so can be downloaded from SAP portal.

1. Create a directory

    mkdir ${JBOSS_HOME}/modules/system/layers/soa/com/sap/conn/jco/main

1. Create a module.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <module xmlns="urn:jboss:module:1.1" name="com.sap.conn.jco">
        <resources>
            <resource-root path="sapjco3.jar"/>
            <resource-root path="lib/linux-x86_64"/>
        </resources>
    </module>

1. Copy JCo library files (assuming your platform is linux-x86_64)

    cp sapjco3.jar $JBOSS_HOME/modules/system/layers/soa/com/sap/conn/jco/main/
    mkdir -p $JBOSS_HOME/modules/system/layers/soa/com/sap/conn/jco/main/lib/linux-x86_64
    cp libsapjco3.so $JBOSS_HOME/modules/system/layers/soa/com/sap/conn/jco/main/lib/linux-x86_64/

1. Add a dependency on JCo library to the $JBOSS_HOME/modules/system/layers/soa/org/fusesource/camel/sap/main/module.xml

    <module name="com.sap.conn.jco"/>

Registering ABAP program from SAP GUI
=====================================

1. First we need to define a destination for external clients like our camel route
    - Navigate under SAP menu to 'Tools' > 'Administration' > 'Administration' > 'Network' > 'RFC Destinations' (double-click or execute)
    - In RFC Connections expand the 'TCP/IP connections' folder and click "Create" in toolbar (blank page)
    - In RFC Destination Dialog
        -> In 'RFC Destination' put 'JCOSERVER01'
        -> 'Connection Type' should already be filled in for you as type 'T' and 'TCP/IP Connection'
        -> In 'Description 1' put e.g. 'JCo Server Destination'
        -> 'Activation Type' box MUST be 'Registered Server Program'
        -> In 'Program ID' box put 'JCO_SERVER'
        -> The 'CPI-C Timeout' should default to 'Default Gateway Value'
        -> Click SAVE on toolbar
    - So you should now see 'JCOSERVER01' in the list of TCP/IP connections
1. Now it is required to create 2 structures for ABAP program in ABAP Dictionary
    - Navigate to 'Tools' > 'ABAP Workbench' > 'Development' > 'ABAP Dictionary' (double-click / execute)
    - The first structure:
        -> Select 'Data type' and enter 'ZCONNECTION_INFO_STRUCTURE' into text box and click 'Create'
        -> In new displayed checkbox  select 'Structure'
        -> Fill the information similar to ZCONNECTION_INFO_STRUCTURE.png screenshot in EXAMPLE_HOME/Screenshots
        -> click 'SAVE' button and in new dialog box just click on 'Local Object'
    - The second structure:
        -> Select 'Data type' and enter 'ZCONNECTION_INFO_TABLE' into text box and click 'Create'
        -> In new displayed checkbox  select 'TABLE'
        -> Fill the information similar to ZCONNECTION_INFO_TABLE.png screenshot in EXAMPLE_HOME/Screenshots
        -> click 'SAVE' button and in new dialog box just click on 'Local Object' ( package should be predefined)
    - in ABAP Dictionary in toolbar there is MatchStick( Activate). Activate both structures
        -> there will be some warning but it is not important
1. Now we create our ABAP program
    - Navigate to 'Tools' > 'ABAP Workbench' > 'Development' > 'ABAP Editor'
    - Select 'Source Code' and enter 'ZBOOK_FLIGHT' for the program name then click 'Create'
    - Enter "Title' and 'Type' is 'Executable program'
    - Choose again 'Local Object'
    - Now you should see Editor window. Copy content of ZBOOK_FLIGHT.txt from EXAMPLE_HOME/Screenshots
        -> Click on 'Check' in the toolbar and wait for compilation and green box on the bottom
        -> Click 'SAVE' button and in new dialog box just click on 'Local Object'
        -> In ABAP Editor in toolbar there is MatchStick(Activate). Activate the program

Running the quickstart
======================
1. Make sure the 'DestinationMetadataProducer.java' and 'ServerMetadataProducer.java' match those of your SAP instance

1. Start AS7 instance
    cd ${JBOSS_HOME}
    ./bin/standalone.sh

1. Build and deploy the quickstart

    cd ${JBOSS_HOME}/quickstarts/camel-sap-binding
    mvn -Pdeploy install

1. Now 'Execute' the program in the SAP and define there some information
    - you will probably need look into the table to specify good date of flight and destinations with using Data Browser (/nse16).

1. You will see the result of flight booking request on SAP GUI window

1. Undeploy the quickstart

    mvn -Pundeploy clean

## Further Reading

1. [SAP Binding Documentation](https://docs.jboss.org/author/display/SWITCHYARD/SAP)
1. [JBoss Fuse SAP Component Documentation] (https://access.redhat.com/site/documentation/en-US/Red_Hat_JBoss_Fuse/6.1/html/Apache_Camel_Component_Reference/files/SAP.html)

