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[emf-dev] deserializing partial xml document into eobject
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Hi,
I successfully created an EMF model from a schema and am able to load my
xml files into the model. What I want to do is to deserialize part of
the document into its corresponding generated EObject. The schema I
used to generate the model is the Mpeg7 schema
(http://m7itb.nist.gov/M7Validation.html). For example, I can load the
following file no problem:
<?xml version="1.0" encoding="iso-8859-1"?>
<Mpeg7 xmlns="urn:mpeg:mpeg7:schema:2001"
xmlns:mpeg7="urn:mpeg:mpeg7:schema:2001"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="urn:mpeg:mpeg7:schema:2001 Mpeg7-2001.xsd">
<Description xsi:type="SummaryDescriptionType">
<Summarization>
<Header xsi:type="DescriptionMetadataType">
<LastUpdate>2006-03-28</LastUpdate>
<Comment><FreeTextAnnotation>Summarization of a Dive based on Event log
and associated frame grabs</FreeTextAnnotation></Comment>
<Creator>
<Role href="MARC_Relator"><Name>Programmer</Name></Role>
<Agent xsi:type="PersonType">
<Name><GivenName>First</GivenName><FamilyName>Last</FamilyName></Name>
<Affiliation><Organization><Name>Organization
Name</Name></Organization></Affiliation>
</Agent>
</Creator>
<Instrument>
<Tool><Name>XSL Transform</Name></Tool></Instrument>
</Header>
<Summary hierarchy="independent" components="keyFrames keyThemes"
xsi:type="HierarchicalSummaryType">
<SourceID>J2-171</SourceID>
<SummaryThemeList>
<SummaryTheme id="EVT">Events manually annotated by
operators.</SummaryTheme>
<SummaryTheme id="ASNAP">Events automatically registered by software.
No textual annotation</SummaryTheme>
</SummaryThemeList>
<SummarySegmentGroup level="0" themeIDs="EVT ASNAP" id="summary-J2-171">
<Name>Events for Dive J2-171</Name>
<Caption>Events captured by SD cameras</Caption>
<SummarySegment themeIDs="EVT">
<Header xsi:type="DescriptionMetadataType">
<CreationLocation>
<GeographicPosition>
<Point altitude="-1.328" latitude="49.44816468" longitude="-128.89364908"/>
</GeographicPosition>
</CreationLocation>
</Header>
<Name>Light elevator in water (Vvan)</Name>
<KeyFrame>
<MediaUri>SubSea1.20050913_174051.jpg</MediaUri>
<MediaTimePoint>2005-09-13T17:40:51</MediaTimePoint>
</KeyFrame>
<KeyFrame>
<MediaUri>SubSea2.20050913_174051.jpg</MediaUri>
<MediaTimePoint>2005-09-13T17:40:51</MediaTimePoint>
</KeyFrame>
<KeyFrame>
<MediaUri>SubSea3.20050913_174051.jpg</MediaUri>
<MediaTimePoint>2005-09-13T17:40:51</MediaTimePoint>
</KeyFrame>
<KeyFrame>
<MediaUri>SubSea4.20050913_174051.jpg</MediaUri>
<MediaTimePoint>2005-09-13T17:40:51</MediaTimePoint>
</KeyFrame>
</SummarySegment>
<SummarySegment>
.......
</SummarySegment>
</SummarySegmentGroup>
</Summary>
</Summarization>
</Description>
</Mpeg7>
There are actually several thousand SummarySegment's. When I load the
whole file, everything works fine. But what I really want to do is to
take one of the SummarySegments and deserialize it into its
corresponding EObject. In my case, it's called SummarySegmentType. I
want to do this because I retrieve a select number of the
SummarySegments from an xml database (based on search) and I don't want
to have to return the whole document to get just the part I'm interested
in. Basically, I want to have a SummarySegmentType object that was been
created from something like:
<SummarySegment xmlns="urn:mpeg:mpeg7:schema:2001" themeIDs="ASNAP">
<Header xsi:type="DescriptionMetadataType"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
<CreationLocation>
<GeographicPosition>
<Point altitude="-2198.128" latitude="47.95012874"
longitude="-129.09741143"/>
</GeographicPosition>
</CreationLocation>
</Header>
<KeyFrame>
<MediaUri>SubSea1.20050914_025933.jpg</MediaUri>
<MediaTimePoint>2005-09-14T02:59:33</MediaTimePoint>
</KeyFrame>
<KeyFrame>
<MediaUri>SubSea2.20050914_025933.jpg</MediaUri>
<MediaTimePoint>2005-09-14T02:59:33</MediaTimePoint>
</KeyFrame>
<KeyFrame>
<MediaUri>SubSea3.20050914_025933.jpg</MediaUri>
<MediaTimePoint>2005-09-14T02:59:33</MediaTimePoint>
</KeyFrame>
<KeyFrame>
<MediaUri>SubSea4.20050914_025933.jpg</MediaUri>
<MediaTimePoint>2005-09-14T02:59:33</MediaTimePoint>
</KeyFrame>
</SummarySegment>
I have tried:
Mpeg7XMLProcessor processor = new Mpeg7XMLProcessor();
Map options = new HashMap();
XMLResource.XMLMap xmlMap = new XMLMapImpl();
// xmlMap.setNoNamespacePackage(Mpeg7Package.eINSTANCE);
options.put(XMLResource.OPTION_XML_MAP, xmlMap);
processor.load(new FileInputStream(new File("C:/test.xml")),
options);
and
Mpeg7ResourceImpl resource = new
Mpeg7ResourceImpl(URI.createFileURI(f.getAbsolutePath()));
XMLResource.XMLMap xmlMap = new XMLMapImpl();
xmlMap.setNoNamespacePackage(Mpeg7Package.eINSTANCE);
Map options = new HashMap();
options.put(XMLResource.OPTION_XML_MAP, xmlMap);
options.put(XMLResource.OPTION_EXTENDED_META_DATA,ExtendedMetaData.INSTANCE);
resource.load(options);
Both produce the following error:
org.eclipse.emf.ecore.resource.Resource$IOWrappedException: Class
'SummarySegment' not found. (file:/C:/test.xml, 1, 112)
at
org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.handleErrors(XMLLoadImpl.java:80)
at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:189)
at
org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:179)
at
org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1089)
at
org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:895)
at edu.washington.cev.jasonii.Test.test2(Test.java:101)
at edu.washington.cev.jasonii.Test.main(Test.java:33)
Caused by: org.eclipse.emf.ecore.xmi.ClassNotFoundException: Class
'SummarySegment' not found. (file:/C:/test.xml, 1, 112)
at
org.eclipse.emf.ecore.xmi.impl.XMLHandler.validateCreateObjectFromFactory(XMLHandler.java:1977)
at
org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleFeature(XMLHandler.java:1618)
at
org.eclipse.emf.ecore.xmi.impl.XMLHandler.createDocumentRoot(XMLHandler.java:1224)
at
org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1152)
at
org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XMLHandler.java:1234)
at
org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:872)
at
org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:854)
at
org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:626)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:533)
at
com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidator.java:798)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:878)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$ContentDispatcher.scanRootElementHook(XMLDocumentScannerImpl.java:1157)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1794)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
at
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:375)
at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:179)
... 5 more
Any help is appreciated.
