diff options
author | edwardsmj <edwardsmj@13f79535-47bb-0310-9956-ffa450edef68> | 2010-05-07 15:09:15 +0000 |
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committer | edwardsmj <edwardsmj@13f79535-47bb-0310-9956-ffa450edef68> | 2010-05-07 15:09:15 +0000 |
commit | a9b4610800919259284a28c00fa0c6f067f0f572 (patch) | |
tree | f26ddd47a09c759b8a56d725f232987cb07d4284 /sca-java-2.x/trunk | |
parent | 89ab6deea22d2a1bbb8de62e73118a42cb5aabdc (diff) |
Extend composite document processing to support DTD declarations and Entity declarations, in support of the use of Entity References to parameterize composite files, as described in TUSCANY-3548
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@942100 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sca-java-2.x/trunk')
-rw-r--r-- | sca-java-2.x/trunk/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeDocumentProcessor.java | 50 |
1 files changed, 45 insertions, 5 deletions
diff --git a/sca-java-2.x/trunk/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeDocumentProcessor.java b/sca-java-2.x/trunk/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeDocumentProcessor.java index f3f25f0b65..9b3de042ae 100644 --- a/sca-java-2.x/trunk/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeDocumentProcessor.java +++ b/sca-java-2.x/trunk/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeDocumentProcessor.java @@ -26,6 +26,8 @@ import java.net.URL; import javax.xml.stream.XMLStreamException; import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamConstants; +import javax.xml.transform.stream.StreamSource; import org.apache.tuscany.sca.assembly.Composite; import org.apache.tuscany.sca.common.java.io.IOHelper; @@ -38,13 +40,15 @@ import org.apache.tuscany.sca.contribution.processor.ValidatingXMLInputFactory; import org.apache.tuscany.sca.contribution.resolver.ModelResolver; import org.apache.tuscany.sca.core.FactoryExtensionPoint; import org.apache.tuscany.sca.monitor.Monitor; +import org.xml.sax.SAXException; /** * A composite processor. * * @version $Rev$ $Date$ */ -public class CompositeDocumentProcessor extends BaseAssemblyProcessor implements URLArtifactProcessor<Composite> { +public class CompositeDocumentProcessor extends BaseAssemblyProcessor implements URLArtifactProcessor<Composite>, + XMLStreamConstants { private ValidatingXMLInputFactory inputFactory; @@ -80,10 +84,10 @@ public class CompositeDocumentProcessor extends BaseAssemblyProcessor implements error(context.getMonitor(), "ContributionReadException", url, ce); throw ce; } - return read(uri, scdlStream, context); + return read(uri, url, scdlStream, context); } - public Composite read(URI uri, InputStream scdlStream, ProcessorContext context) throws ContributionReadException { + public Composite read(URI uri, URL url, InputStream scdlStream, ProcessorContext context) throws ContributionReadException { try { Composite composite = null; @@ -93,13 +97,20 @@ public class CompositeDocumentProcessor extends BaseAssemblyProcessor implements monitor.setArtifactName(uri.toString()); } //end if - XMLStreamReader reader = inputFactory.createXMLStreamReader(scdlStream); + // Set up a StreamSource for the composite file, since this has an associated URL that can be used to + // by the parser to find references to other files such as DTDs + StreamSource scdlSource = new StreamSource( scdlStream, url.toString() ); + XMLStreamReader reader = inputFactory.createXMLStreamReader(scdlSource); + + //XMLStreamReader reader = inputFactory.createXMLStreamReader(scdlStream); + // set the monitor on the input factory as the standard XMLInputFactory // methods used for creating readers don't allow for the context to // be passed in ValidatingXMLInputFactory.setMonitor(reader, context.getMonitor()); - reader.nextTag(); + //reader.nextTag(); + readCompositeFileHeader( reader ); // Read the composite model composite = (Composite)extensionProcessor.read(reader, context); @@ -125,6 +136,35 @@ public class CompositeDocumentProcessor extends BaseAssemblyProcessor implements } } + /** + * Reads the header portion of a composite file - i.e. the section of the file before the + * <composite> start tag + * In particular handle any DTD declarations + * @param reader - an XMLStreamReader which is reading the composite file + * @throws XMLStreamException + */ + private void readCompositeFileHeader( XMLStreamReader reader ) throws XMLStreamException { + + while (true) { + int event = reader.next(); + + if ( event == CHARACTERS + || event == CDATA + || event == SPACE + || event == PROCESSING_INSTRUCTION + || event == COMMENT + || event == DTD + || event == ENTITY_DECLARATION ) { + continue; + } // end if + + // The first start (or end) element terminates the header scan + if (event == START_ELEMENT || event == END_ELEMENT) { + return; + } // end if + } // end while + } // end method readCompositeFileHeader + public void resolve(Composite composite, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException { try { if (composite != null) |