Other IoC containers support

[alesj]

Regarding http://jira.jboss.com/jira/browse/JBMICROCONT-26.

1)
Where to put such code?
New module / project - ioc-ext?

2)
I see two ways that we can support this:

2a)
Exactly what the task is stating: translate other IOC xml into JBoss MC metadata.
Similar as to what we are already doing with JavaBeans, we can also manage beans defined by other IoC containers - integration with MC via xsd and SingletonSchemaResolverFactory.

2b)
Second one is similar to the way current SpringDeployer is done - propagating bean deployment / management to Spring container.
So all this supported IoC containers manage their beans themselves.
This is more of a test of finding a common way on top of new deployers to handle different IoC container management - possible hierarchy with deploy/redeploy/undeploy.

[starksm64]

The point of this task should be validating the ability to support mappings of other frameworks onto the mc model. Arbitrary interaction between the mc and some other kernel implementation has too many complications.

The main framework I want to see validated is osgi.

[alesj]

The main framework I want to see validated is osgi.

Ok.
I already started with Spring, just to get the first grip on how to do this.
Once I'm finished, I'll try to do the same with OSGi.

[alesj]

The point of this task should be validating the ability to support mappings of other frameworks onto the mc model. Arbitrary interaction between the mc and some other kernel implementation has too many complications.

I already have the code that does user-transparent bi-directional interaction between MC and Spring.
If I have the time and idea I don't see why not to include this for other IoC containers as well.
But as you said - our/my main goal will be validating the ability to support mappings of other frameworks onto the MC model.

[alesj]

How is it with having modified Spring xsd file in our distribution?
Are we allowed to modify xsd and ship it with our dist?

Since if I want to handle xml + xsd binding as we do it now with MC MD and JavaBeans, I have to modify Spring's xsd - adding names to complex types (they are using nested complex types inside element definitions).

[starksm64]

Its just a licensing issue. As long as the license allows it, its is fine. We need to be using a unique namespace to avoid conflicts with the base version.

[alesj]

Its just a licensing issue. As long as the license allows it, its is fine.

Who would know this?

I've already commited initial code to the mc trunk (spring-int module):
- mc-spring-beans_2_0.xsd (my modification)
- http://www.springframework.org/schema/beans/spring-beans-2.0.xsd (original)

So if someone can have a look at the modifications and specify what we can do or what we can't do.

[starksm64]

What is the license of the distribution in which this schema is found? At a minimum the some attribution of the copyright and license terms needs to be added. We should use a namespace like urn:jboss:spring-deployer:2.0 for the modified schema.

[alesj]

What is the license of the distribution in which this schema is found?

The Spring Framework is licensed under the terms of the Apache License, Version 2.0.
From http://www.springframework.org/about.

We should use a namespace like urn:jboss:spring-deployer:2.0 for the modified schema.

I suggest 'urn:jboss:spring-beans:2.0'.

This means that you cannot just drop in your current spring xml definition - you must change the namespace.
But it is probably nicer when we want to mix and match with our mc beans.

[starksm64]

"alesj" wrote:

I suggest 'urn:jboss:spring-beans:2.0'.

Fine.

"alesj" wrote:

This means that you cannot just drop in your current spring xml definition - you must change the namespace.
But it is probably nicer when we want to mix and match with our mc beans.

If we want some transparent replacement of the schema with the changes, then we should just have to map the http://www.springframework.org/schema/beans name to the urn:jboss:spring-beans:2.0 schema. This requires that the urn:jboss:spring-beans:2.0 is a pure superset of the http://www.springframework.org/schema/beans schema. Difficult to guarentee that given that its not even a versioned namespace.

[alesj]

If we want some transparent replacement of the schema with the changes, then we should just have to map the http://www.springframework.org/schema/beans name to the urn:jboss:spring-beans:2.0 schema. This requires that the urn:jboss:spring-beans:2.0 is a pure superset of the http://www.springframework.org/schema/beans schema. Difficult to guarentee that given that its not even a versioned namespace.

You're right.
Currently we don't support all of the features of the Spring schema - I'm working on it, but I think we will never support them 100%. Some things are plain unnecessary or would require move into something we basically don't need or take us too much time for little gained.

[alesj]

While testing, I get this exception.
What's the problem, any ideas?

---------------------------------

93 DEBUG [InstantiateSpringTestCase] ==== Starting testInstantiate ====
375 DEBUG [InstantiateSpringTestCase] Initialized parsing in 266ms
843 WARN [JBossEntityResolver] Cannot load publicId from resource: xml.xsd
859 DEBUG [JBossEntityResolver] Cannot resolve [publicID=http://www.w3.org/XML/1998/namespace,systemID=null]
859 WARN [JBossEntityResolver] Cannot load systemId from resource: xml.xsd
15171 DEBUG [InstantiateSpringTestCase] Error during parsing: file:/C:/ales/projects/microcontainer/spring-int/classes/org/jboss/test/spring/test/TestInstantiate.xml
org.jboss.xb.binding.JBossXBException: Failed to parse source: file:/C:/ales/projects/microcontainer/spring-int/classes/org/jboss/test/spring/test/TestInstantiate.xml@3,91
at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.parse(SaxJBossXBParser.java:173)
at org.jboss.xb.binding.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:133)
at org.jboss.test.ioc.test.IoCTestDelegate.unmarshal(IoCTestDelegate.java:74)
at org.jboss.test.ioc.test.AbstractIoCTest.unmarshal(AbstractIoCTest.java:73)
at org.jboss.test.ioc.test.AbstractIoCTest.unmarshal(AbstractIoCTest.java:56)
at org.jboss.test.spring.test.InstantiateSpringTestCase.testInstantiate(InstantiateSpringTestCase.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at junit.framework.TestCase.runTest(TestCase.java:164)
at junit.framework.TestCase.runBare(TestCase.java:130)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:120)
at junit.framework.TestSuite.runTest(TestSuite.java:228)
at junit.framework.TestSuite.run(TestSuite.java:223)
at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
at junit.extensions.TestSetup$1.protect(TestSetup.java:23)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.extensions.TestSetup.run(TestSetup.java:27)
at junit.framework.TestSuite.runTest(TestSuite.java:228)
at junit.framework.TestSuite.run(TestSuite.java:223)
at junit.textui.TestRunner.doRun(TestRunner.java:115)
at com.intellij.rt.execution.junit2.IdeaJUnitAgent.doRun(IdeaJUnitAgent.java:58)
at junit.textui.TestRunner.start(TestRunner.java:179)
at com.intellij.rt.execution.junit.TextTestRunner2.startRunnerWithArgs(TextTestRunner2.java:23)
at com.intellij.rt.execution.junit2.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:98)
at com.intellij.rt.execution.junit2.JUnitStarter.main(JUnitStarter.java:32)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
Caused by: org.jboss.xb.binding.JBossXBRuntimeException: -1:-1 5:28 s4s-elt-character: Non-whitespace characters are not allowed in schema elements other than 'xs:appinfo' and 'xs:documentation'. Saw 'The "xml:" Namespace'.
at org.jboss.xb.binding.sunday.unmarshalling.XsdBinderTerminatingErrorHandler.handleError(XsdBinderTerminatingErrorHandler.java:40)
at org.apache.xerces.impl.xs.XMLSchemaLoader.reportDOMFatalError(Unknown Source)
at org.apache.xerces.impl.xs.XSLoaderImpl.load(Unknown Source)
at org.jboss.xb.binding.Util.loadSchema(Util.java:395)
at org.jboss.xb.binding.sunday.unmarshalling.XsdBinder.bind(XsdBinder.java:168)
at org.jboss.xb.binding.sunday.unmarshalling.XsdBinder.bind(XsdBinder.java:139)
at org.jboss.xb.binding.sunday.unmarshalling.DefaultSchemaResolver.resolve(DefaultSchemaResolver.java:247)
at org.jboss.xb.binding.sunday.unmarshalling.SundayContentHandler.startElement(SundayContentHandler.java:187)
at org.jboss.xb.binding.parser.sax.SaxJBossXBParser$DelegatingContentHandler.startElement(SaxJBossXBParser.java:381)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
at org.apache.xerces.xinclude.XIncludeHandler.startElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.parse(SaxJBossXBParser.java:169)
... 34 more
15234 DEBUG [InstantiateSpringTestCase] testInstantiate took 15141ms
15234 DEBUG [InstantiateSpringTestCase] ==== Stopping testInstantiate ====

org.jboss.xb.binding.JBossXBException: Failed to parse source: file:/C:/ales/projects/microcontainer/spring-int/classes/org/jboss/test/spring/test/TestInstantiate.xml@3,91
at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.parse(SaxJBossXBParser.java:173)
at org.jboss.xb.binding.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:133)
at org.jboss.test.ioc.test.IoCTestDelegate.unmarshal(IoCTestDelegate.java:74)
at org.jboss.test.ioc.test.AbstractIoCTest.unmarshal(AbstractIoCTest.java:73)
at org.jboss.test.ioc.test.AbstractIoCTest.unmarshal(AbstractIoCTest.java:56)
at org.jboss.test.spring.test.InstantiateSpringTestCase.testInstantiate(InstantiateSpringTestCase.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
at junit.extensions.TestSetup$1.protect(TestSetup.java:23)
at junit.extensions.TestSetup.run(TestSetup.java:27)
at com.intellij.rt.execution.junit2.JUnitStarter.main(JUnitStarter.java:32)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
Caused by: org.jboss.xb.binding.JBossXBRuntimeException: -1:-1 5:28 s4s-elt-character: Non-whitespace characters are not allowed in schema elements other than 'xs:appinfo' and 'xs:documentation'. Saw 'The "xml:" Namespace'.
at org.jboss.xb.binding.sunday.unmarshalling.XsdBinderTerminatingErrorHandler.handleError(XsdBinderTerminatingErrorHandler.java:40)
at org.apache.xerces.impl.xs.XMLSchemaLoader.reportDOMFatalError(Unknown Source)
at org.apache.xerces.impl.xs.XSLoaderImpl.load(Unknown Source)
at org.jboss.xb.binding.Util.loadSchema(Util.java:395)
at org.jboss.xb.binding.sunday.unmarshalling.XsdBinder.bind(XsdBinder.java:168)
at org.jboss.xb.binding.sunday.unmarshalling.XsdBinder.bind(XsdBinder.java:139)
at org.jboss.xb.binding.sunday.unmarshalling.DefaultSchemaResolver.resolve(DefaultSchemaResolver.java:247)
at org.jboss.xb.binding.sunday.unmarshalling.SundayContentHandler.startElement(SundayContentHandler.java:187)
at org.jboss.xb.binding.parser.sax.SaxJBossXBParser$DelegatingContentHandler.startElement(SaxJBossXBParser.java:381)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
at org.apache.xerces.xinclude.XIncludeHandler.startElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.parse(SaxJBossXBParser.java:169)
... 34 more

15234 DEBUG [InstantiateSpringTestCase] ==== tornDown org.jboss.test.spring.test.InstantiateSpringTestCase ====

Process finished with exit code -1

[alesj]

Found the problem.
I needed to put xml.xsd into my classpath.

So we should do this also in our dist or is this already in?
Or you can reference it some other way?

---------------------------

<?xml version='1.0'?>
<xs:schema targetNamespace="http://www.w3.org/XML/1998/namespace" xmlns:xs="http://www.w3.org/2001/XMLSchema" xml:lang="en">

<xs:annotation>
<xs:documentation>
See http://www.w3.org/XML/1998/namespace.html and
http://www.w3.org/TR/REC-xml for information about this namespace.

This schema document describes the XML namespace, in a form
suitable for import by other schema documents.

Note that local names in this namespace are intended to be defined
only by the World Wide Web Consortium or its subgroups. The
following names are currently defined in this namespace and should
not be used with conflicting semantics by any Working Group,
specification, or document instance:

base (as an attribute name): denotes an attribute whose value
provides a URI to be used as the base for interpreting any
relative URIs in the scope of the element on which it
appears; its value is inherited. This name is reserved
by virtue of its definition in the XML Base specification.

id (as an attribute name): denotes an attribute whose value
should be interpreted as if declared to be of type ID.
The xml:id specification is not yet a W3C Recommendation,
but this attribute is included here to facilitate experimentation
with the mechanisms it proposes. Note that it is _not_ included
in the specialAttrs attribute group.

lang (as an attribute name): denotes an attribute whose value
is a language code for the natural language of the content of
any element; its value is inherited. This name is reserved
by virtue of its definition in the XML specification.

space (as an attribute name): denotes an attribute whose
value is a keyword indicating what whitespace processing
discipline is intended for the content of the element; its
value is inherited. This name is reserved by virtue of its
definition in the XML specification.

Father (in any context at all): denotes Jon Bosak, the chair of
the original XML Working Group. This name is reserved by
the following decision of the W3C XML Plenary and
XML Coordination groups:

In appreciation for his vision, leadership and dedication
the W3C XML Plenary on this 10th day of February, 2000
reserves for Jon Bosak in perpetuity the XML name
xml:Father
</xs:documentation>
</xs:annotation>

<xs:annotation>
<xs:documentation>This schema defines attributes and an attribute group
suitable for use by
schemas wishing to allow xml:base, xml:lang, xml:space or xml:id
attributes on elements they define.

To enable this, such a schema must import this schema
for the XML namespace, e.g. as follows:
<schema . . .>
. . .


Subsequently, qualified reference to any of the attributes
or the group defined below will have the desired effect, e.g.

<type . . .>
. . .


will define a type which will schema-validate an instance
element with any of those attributes</xs:documentation>

</xs:annotation>

<xs:annotation>
<xs:documentation>In keeping with the XML Schema WG's standard versioning
policy, this schema document will persist at
http://www.w3.org/2005/08/xml.xsd.
At the date of issue it can also be found at
http://www.w3.org/2001/xml.xsd.
The schema document at that URI may however change in the future,
in order to remain compatible with the latest version of XML Schema
itself, or with the XML namespace itself. In other words, if the XML
Schema or XML namespaces change, the version of this document at
http://www.w3.org/2001/xml.xsd will change
accordingly; the version at
http://www.w3.org/2005/08/xml.xsd will not change.
</xs:documentation>
</xs:annotation>

<xs:attribute name="lang">
<xs:annotation>
<xs:documentation>Attempting to install the relevant ISO 2- and 3-letter
codes as the enumerated possible values is probably never
going to be a realistic possibility. See
RFC 3066 at http://www.ietf.org/rfc/rfc3066.txt and the IANA registry
at http://www.iana.org/assignments/lang-tag-apps.htm for
further information.

The union allows for the 'un-declaration' of xml:lang with
the empty string.</xs:documentation>

</xs:annotation>
<xs:simpleType>
<xs:union memberTypes="xs:language">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value=""/>
</xs:restriction>
</xs:simpleType>
</xs:union>

</xs:simpleType>
</xs:attribute>

<xs:attribute name="space">
<xs:simpleType>
<xs:restriction base="xs:NCName">
<xs:enumeration value="default"/>
<xs:enumeration value="preserve"/>
</xs:restriction>

</xs:simpleType>
</xs:attribute>

<xs:attribute name="base" type="xs:anyURI">
<xs:annotation>
<xs:documentation>See http://www.w3.org/TR/xmlbase/ for
information about this attribute.</xs:documentation>
</xs:annotation>
</xs:attribute>

<xs:attribute name="id" type="xs:ID">

<xs:annotation>
<xs:documentation>See http://www.w3.org/TR/xml-id/ for
information about this attribute.</xs:documentation>
</xs:annotation>
</xs:attribute>

<xs:attributeGroup name="specialAttrs">
<xs:attribute ref="xml:base"/>
<xs:attribute ref="xml:lang"/>
<xs:attribute ref="xml:space"/>

</xs:attributeGroup>

</xs:schema>

[starksm64]

It along with many others are already in the jboss5 config of the jbossxb layer.

[aloubyansky]

I tried to load this XSD w/o xml.xsd in the classpath and there was no problem. There was also no resource resolution. Commit or send me a testcase if it's still a problem.