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+DataBinding Echo Sample
+=======================
+
+This sample demonstrates how databindings are used to convert data formats as
+the data flows between components.
+
+The README in the samples directory (the directory above this) provides
+general instructions about building and running samples. Take a look there
+first.
+
+If you just want to run it to see what happens, open a command prompt, navigate
+to this sample directory, and do
+
+ant run
+
+OR if you don't have ant, on Windows do
+
+java -cp ..\..\lib\tuscany-sca-manifest.jar;..\binding-echo-extension\target\sample-binding-echo-extension.jar;target\sample-databinding-echo.jar dbecho.EchoDataBindingClient
+
+and on *nix do
+
+java -cp ../../lib/tuscany-sca-manifest.jar:../binding-echo-extension/target/sample-binding-echo-extension.jar:target/sample-databinding-echo.jar dbecho.EchoDataBindingClient
+
+
+Sample Overview
+---------------
+If reference and service interfaces are the same in all but the formats of
+data being passed to and returned from the operations of the interfaces,
+then SCA will try to apply appropriate transformations to the data formats
+to allow messages to pass.
+
+This sample shows this happening. ComponentA implements Interface1 which
+defines;
+
+ String call(String msg)
+ String call1(String msg)
+
+ComponentA defines a reference to ComponentB with Interface1. ComponentB
+however implements Interface2 which defines;
+
+ Node call(Node msg);
+ XMLStreamReader call1(XMLStreamReader msg);
+
+You can see from the test output below that SCA converts the call() msg from a
+String to a DOM object (org.apache.xerces.dom.DeferredDocumentImpl). It
+converts the call1() msg from a String to a XML stream reader
+(com.ctc.wstx.sr.ValidatingStreamReader).
+
+databinding-echo/
+ src/
+ main/
+ java/
+ dbecho/
+ ComponentAImpl.java - component implementation
+ ComponentBImpl.java - component implementation
+ Echo.java - service interface with data binding
+ EchoDataBindingClient.java - sample client code
+ Interface1.java - service interface with data binding
+ Interface2.java - service interface with data bindings
+ resources/
+ META-INF/
+ services/
+ org.apache.tuscany.sca.core.ModuleActivator - specifies the module activation class to call
+ EchoDataBinding.composite - composite definition
+ wsdl/
+ echo.wsdl - WSDL deinitions
+ test/
+ java/
+ dbecho/
+ EchoDataBindingTestCase.java - junit test case
+ databinding-echo.png - pictorial representation of the sample .composite file
+ build.xml - the Ant build file
+ pom.xml - the Maven build file
+
+TODO - Needs more description of what else is going on in this test
+ properties, wsdl?
+
+
+Building And Running The Sample Using Ant
+-----------------------------------------
+With the binary distribution the sample can be built and run using Ant as
+follows.
+
+cd databinding-echo
+ant compile
+ant run
+
+You should see the following output from the run target.
+
+run:
+ [java] [Property] prefix: ABC
+ [java] [Property] prefix1: ABC
+ [java] [Property] bar: BAR
+ [java] ComponentA --> Received message: <message><foo>123</foo></message> [java.lang.String]
+ [java] ComponentB --> Received message: [#document: null] [org.apache.xerces.dom.DeferredDocumentImpl]
+ [java] ComponentB --> Returned message: [#document: null] [org.apache.xerces.dom.DeferredDocumentImpl]
+ [java] ComponentA --> Returned message: <?xml version="1.0" encoding="UTF-8"?><message><foo>123</foo></message> [java.lang.String]
+ [java] [Property] prefix: ABC
+ [java] [Property] prefix1: ABC
+ [java] [Property] bar: BAR
+ [java] ComponentA --> Received message: <message><foo>123</foo></message> [java.lang.String]
+ [java] ComponentB --> Received message: com.ctc.wstx.sr.ValidatingStreamReader@4c444c44 [com.ctc.wstx.sr.ValidatingStreamReader]
+ [java] ComponentB --> Returned message: com.ctc.wstx.sr.ValidatingStreamReader@4c444c44 [com.ctc.wstx.sr.ValidatingStreamReader]
+ [java] ComponentA --> Returned message: <?xml version='1.0' encoding='UTF-8'?><message><foo>123</foo></message> [java.lang.String]
+ [java] call response = <?xml version="1.0" encoding="UTF-8"?><message><foo>123</foo></message>
+ [java] call1 response = <?xml version='1.0' encoding='UTF-8'?><message><foo>123</foo></message>
+
+
+Building And Running The Sample Using Maven
+-------------------------------------------
+With either the binary or source distributions the sample can be built and run
+using Maven as follows.
+
+cd databinding-echo
+mvn
+
+You should see the following output from the test phase.
+
+-------------------------------------------------------
+ T E S T S
+-------------------------------------------------------
+Running dbecho.EchoDataBindingTestCase
+[Property] prefix: ABC
+[Property] prefix1: ABC
+[Property] bar: BAR
+ComponentA --> Received message: <message><foo>123</foo></message> [java.lang.String]
+ComponentB --> Received message: [#document: null] [org.apache.xerces.dom.DeferredDocumentImpl]
+ComponentB --> Returned message: [#document: null] [org.apache.xerces.dom.DeferredDocumentImpl]
+ComponentA --> Returned message: <?xml version="1.0" encoding="UTF-8"?><message><foo>123</foo></message> [java.lang.String]
+[Property] prefix: ABC
+[Property] prefix1: ABC
+[Property] bar: BAR
+ComponentA --> Received message: <message><foo>123</foo></message> [java.lang.String]
+ComponentB --> Received message: com.ctc.wstx.sr.ValidatingStreamReader@74e274e2 [com.ctc.wstx.sr.ValidatingStreamReader]
+ComponentB --> Returned message: com.ctc.wstx.sr.ValidatingStreamReader@74e274e2 [com.ctc.wstx.sr.ValidatingStreamReader]
+ComponentA --> Returned message: <?xml version='1.0' encoding='UTF-8'?><message><foo>123</foo></message> [java.lang.String]
+Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.653 sec
+
+Results :
+
+Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
+
+This shows that the Junit test cases have run successfully.