???? Apache Tuscany Java SCA FAQ ???????????????

IBM ? Sun ? JDK 1.5 ???Tuscany??????????????

??JDK1.4?Tuscany SCA??????JDK1.5??????????

JDK1.6?XML???????????????????????????????????????????????????????JDK1.6?

javax.xml.stream.FactoryConfigurationError: Provider
javax.xml.stream.XMLInputFactory could not be
instantiated: java.lang.InstantiationException
at
javax.xml.stream.XMLInputFactory.newInstance(XMLInputFactory.java:158)

???? Apache Tuscany??????Maven??????Maven2.0.5??????????????????????????????????2.0.5?

??Tuscany?SVN????????????????????????????????????trunk?????????????????????????????????????????????????

???????????????????????????????????????????

??????????IDE
????????

cd mytuscanydir
svn checkout [https://svn.apache.org/repos/asf/incubator/tuscany/java/]

(????????????)

svn update [https://svn.apache.org/repos/asf/incubator/tuscany/java/]

???maven

cd mytuscanydir/sca
mvn clean

????maven??????maven???????SCA??

.m2\repository\org\apache\tuscany\sca

????sca

cd mytuscanydir/sca
mvn

??????????????????????????

??itest???????"Java heap space"????itest????????????????????

"MAVEN_OPTS="-Xmx1024m -Xms512m"???sca?pom?1surfire plugin?????

1 https://svn.apache.org/repos/asf/incubator/tuscany/java/sca/pom.xml

????????????????svn????????????

 
demos 
distribution 
itest 
modules 
samples 
tools 
pom.xml 

??maven??

 
mvn 

mvn??????????????Eclipse

 
mvn -Peclipse eclipse:eclipse 

???????".classpath" ? ".project"????????Eclipse????Eclipse?"File/Import/Existing Projects Into Workspace"????????????Eclipse??????????

???????????????????????????????????????????????????????????

?????Eclipse WTP?WebApp???WTP Web?????mvn eclipse:eclipse ?????????? -Dwtpversion=1.5?

 
mvn -Dwtpversion=1.5 -Peclipse eclipse:eclipse 

?-Dwtpversion=1.5???Eclipse?? WTP Web????<packaging>war</packaging> ?????????????????WTP Tomcat ? Geronimo Server ???, ???Eclipse???????????

???????IBM JDK? jre\lib\security\java.security???????????

 
# 
# List of providers and their preference orders: 
# 
security.provider.1=org.bouncycastle.jce.provider.BouncyCastleProvider 
security.provider.3=com.ibm.jsse2.IBMJSSEProvider2 
security.provider.2=com.ibm.crypto.provider.IBMJCE 
security.provider.4=com.ibm.security.jgss.IBMJGSSProvider 
security.provider.5=com.ibm.security.cert.IBMCertPath 
security.provider.6=com.ibm.security.sasl.IBMSASL 

???????????maven???????????????????????????????maven settings.xml????????????

 
<mirrors> 
<mirror> 
<id>ant.staging</id> 
<url>http://people.apache.org/~antelder/tuscany/1.0-RC1a/maven</url> 
<mirrorOf>apache.incubator</mirrorOf> 
</mirror> 

settings.xml??home.m2??????????? : "C:\Documents and Settings\Administrator\.m2"??????????????????:settings.xml

Tuscany??JDK logger info, warning ?. ???????logging.properties. Tuscany?????????????JDK?INFO???????????????????logging.properties??????jre/lib????IBM JDK

 
C:\thedirwhereiinstalledjava\jre\lib\logging properties 

????????FINE????????

 
.level= FINE 

????????????

 
java.util.logging.ConsoleHandler.level = INFO 

JDK???????????

?????????java???????????

?????JVM??????????????Calculator???

 
java -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 
-cp ..\..\lib\tuscany-sca-manifest.jar;target\sample-calculator.jar;
.calculator.CalculatorClient 
Listening for transport dt_socket at address: 8000 
3 + 2=5.0 
3 - 2=1.0 
3 * 2=6.0 
3 / 2=1.5 

????????-X. ????????8000. ? Eclipse????????????debug dialog????"Remote Java Application"??8000????????

????Eclipse??? Tuscany SCA ?????????calculator??

?????????????????windows??????????????????????????????????????????????????????????????????

 
@Service(interfaces={Interface1.class, Interface2.class, Interface3.class} ) 
public class ServiceImpl implements Interface1, Interface2, Interface3{ 
... 
} 

???????????????...

 
public class ServiceImpl implements ServiceInterface1{ 
@Reference 
ServiceInterface2 serviceReference1; 

@Reference 
private ServiceInterface2 serviceReference2; 

@Reference 
protected ServiceInterface2 serviceReference3; 

@Reference 
public ServiceInterface2 serviceReference4; 

... 
} 

???????serviceReference1 ? serviceReference2 ?? null??? SCA "" protected ? public ?????????""??????????@Callback, @ConversationId ? @Context?

???????????SCA??SLSB????????????

???????????????????????????Java ??, XML ??, ??CORBA ??, ???????????????????
????????????????Java???????Java???????????????????JavaJava?????Java???????????????????????????????????????WSDL????WSDLXML?
???????????????????????, ???XML???DOM, StAX ??SDO, ? JAXB ?????????AXIOM??Tuscany????????????

1. ?????data mediator interceptor??????????????R?A?????S?B?????????????
   ???????????AB?????????????????????????????????????????
   ?????????????????????????????(????)????????????Axis2?RMI??????????????????????Axis2?AXIOM??????????????????AXIOM??????????????????AXIOM???????????????????:
   1. A ??Java ?? X(java) R
   2. X ??? R???
   3. ????? X(java) ??? AXIOM ?? X(axiom)
   4. X(axiom) ?Axis2???
   5. Axis2??? X(axiom)?(XML)????
   6. Axis2?????? XML ????? X(axiom)
   7. X(axiom) ?Axis2???
   8. ?????????????? X(axiom) ??? X(java)
   9. X(java) ??? B???
   10. B??????????????? X(java)
       .???????????????????????:???AAxis2???????Axis2???????B?
       ????????????????? A ? B?????A ? B ??????????????????????????? A->net ? net->B?

SCA ?????? 1.00? 1.10.2.3.?????sca-contribution.xml????????????????????????

??????????contribution?

/my/contribution/dir 

???????????????????contribution. ??, ??????

/my/contribution/dir/META-INF/sca-contribution.xml 
/my/contribution/dir/mycomposite.composite 

sca-contribution.xml???

<contribution xmlns="http://www.osoa.org/xmlns/sca/1.0" 
targetNamespace="http://mycomposite" 
xmlns:management="http://mycomposite"> 
<deployable composite="mycomposite:MyComposite"/> 
</contribution> 

?contribution???mycomposite.composite ??????????mycomposite:MyComposite?, ???????

??Tuscany??????, SCA?????????

???????????contribution?

/my/contribution/dir 

????????????????????/META-INF/sca-deployables/????????

/my/contribution/dir/META-INF/sca-deployables/mycomposite.composite 

Java SCA 1.0??, SCA ????????????? definitions.xml???????SCA????????With respect to processing, computing aplicable policies and applying them is concerned here is what the Release1.0??:

• ???????????????????????????????????????????
• ???????axis2????binding-ws-axis2itest?????? helloworld-ws-service-secure????ws-security????
• itest ???????"confidentiality intent"???????Tuscany??API????????
• WS-Policy, ??????????
• ??????????sca???'appliesTo'?xpath???????????????? ??????????????

• ????????????bouncycastle???. ??????????????? (? IDEA)?
• ??????????Axis2??????????????http://wso2.org/library/234?http://wso2.org/library/174?http://wso2.org/library/255?
• ? ws-binding-axis2?itest? helloworld-ws-service-securedefinitions.xml??????(confidentiality)????Axis2ConfigParam??????????????????????keystore?keystore?????????, ??password callback handler ???
• ???????binding.ws???????bcprov-jdk15-132.jar?classpath??
• JRE????security.policy???????????????Sun?IBM?JRE????? ????

SCA ???????6?:

http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=sca-assembly
http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=sca-policy
http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=sca-bindings
http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=sca-j
http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=sca-c-cpp
http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=sca-bpel

??????????????????????

???????

http://www.oasis-open.org/archives/sca-assembly/
http://www.oasis-open.org/archives/sca-policy/
http://www.oasis-open.org/archives/sca-bindings/
http://www.oasis-open.org/archives/sca-j/
http://www.oasis-open.org/archives/sca-c-cpp/
http://www.oasis-open.org/archives/sca-bpel/

An SCA composite can be used as an implementation (implementation.composite) for a component. This is so-called recursive composition. It allows pre-assembled composites to be reused.

"promote" can be used to make services or references declared on a component inside the composite visible for wiring at the composite level. The composite services and references can be then further configured when it's used as a component implementation at outer level.

Hope the following samples help.

 
<composite name="Composite1" xmlns:ns="http://dummy"> 
<component name="C1"> 
<implementation.composite name="ns:Composite2"> 
<!-- wire ref1 to component C3's service1 --> 
<reference name="ref1" target="C3/service1"/> 
<!-- configure the service with ws binding --> 
<service name="svc1"> 
<binding.ws .../> 
</service> 
</component> 
</composite> 

 
<composite name="Composite2" targetNamespace="http://dummy" 
xmlns:ns="http://dummy"> 
<component name="C2"> 
<implementation.java class="my.C2Impl"> 
</component> 

<!-- innerService of component C2 is promoted as svc1 --> 
<service name="svc1" promote="C2/innerService"/> 
<!-- innerReference of component C2 is promoted as ref1 --> 
<reference name="ref1" promote="C2/innerReference"/> 
</composite>