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package com.sun.xml.xsom.impl.parser;
import com.sun.xml.xsom.XSSchemaSet;
import com.sun.xml.xsom.impl.ElementDecl;
import com.sun.xml.xsom.impl.SchemaImpl;
import com.sun.xml.xsom.impl.SchemaSetImpl;
import com.sun.xml.xsom.parser.AnnotationParserFactory;
import com.sun.xml.xsom.parser.XMLParser;
import com.sun.xml.xsom.parser.XSOMParser;
import org.xml.sax.EntityResolver;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Vector;
/**
* Provides context information to be used by {@link NGCCRuntimeEx}s.
*
* <p>
* This class does the actual processing for {@link XSOMParser},
* but to hide the details from the public API, this class in
* a different package.
*
* @author Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
*/
public class ParserContext {
/** SchemaSet to which a newly parsed schema is put in. */
public final SchemaSetImpl schemaSet = new SchemaSetImpl();
private final XSOMParser owner;
final XMLParser parser;
private final Vector<Patch> patchers = new Vector<Patch>();
private final Vector<Patch> errorCheckers = new Vector<Patch>();
/**
* Documents that are parsed already. Used to avoid cyclic inclusion/double
* inclusion of schemas. Set of {@link SchemaDocumentImpl}s.
*
* The actual data structure is map from {@link SchemaDocumentImpl} to itself,
* so that we can access the {@link SchemaDocumentImpl} itself.
*/
public final Map<SchemaDocumentImpl, SchemaDocumentImpl> parsedDocuments = new HashMap<SchemaDocumentImpl, SchemaDocumentImpl>();
public ParserContext( XSOMParser owner, XMLParser parser ) {
this.owner = owner;
this.parser = parser;
try {
parse(new InputSource(ParserContext.class.getResource("datatypes.xsd").toExternalForm()));
SchemaImpl xs = (SchemaImpl)
schemaSet.getSchema("http://www.w3.org/2001/XMLSchema");
xs.addSimpleType(schemaSet.anySimpleType,true);
xs.addComplexType(schemaSet.anyType,true);
} catch( SAXException e ) {
// this must be a bug of XSOM
if(e.getException()!=null)
e.getException().printStackTrace();
else
e.printStackTrace();
throw new InternalError();
}
}
public EntityResolver getEntityResolver() {
return owner.getEntityResolver();
}
public AnnotationParserFactory getAnnotationParserFactory() {
return owner.getAnnotationParserFactory();
}
/**
* Parses a new XML Schema document.
*/
public void parse( InputSource source ) throws SAXException {
newNGCCRuntime().parseEntity(source,false,null,null);
}
public XSSchemaSet getResult() throws SAXException {
// run all the patchers
for (Patch patcher : patchers)
patcher.run();
patchers.clear();
// build the element substitutability map
Iterator itr = schemaSet.iterateElementDecls();
while(itr.hasNext())
((ElementDecl)itr.next()).updateSubstitutabilityMap();
// run all the error checkers
for (Patch patcher : errorCheckers)
patcher.run();
errorCheckers.clear();
if(hadError) return null;
else return schemaSet;
}
public NGCCRuntimeEx newNGCCRuntime() {
return new NGCCRuntimeEx(this);
}
/** Once an error is detected, this flag is set to true. */
private boolean hadError = false;
/** Turns on the error flag. */
void setErrorFlag() { hadError=true; }
/**
* PatchManager implementation, which is accessible only from
* NGCCRuntimEx.
*/
final PatcherManager patcherManager = new PatcherManager() {
public void addPatcher( Patch patch ) {
patchers.add(patch);
}
public void addErrorChecker( Patch patch ) {
errorCheckers.add(patch);
}
public void reportError( String msg, Locator src ) throws SAXException {
// set a flag to true to avoid returning a corrupted object.
setErrorFlag();
SAXParseException e = new SAXParseException(msg,src);
if(errorHandler==null)
throw e;
else
errorHandler.error(e);
}
};
/**
* ErrorHandler proxy to turn on the hadError flag when an error
* is found.
*/
final ErrorHandler errorHandler = new ErrorHandler() {
private ErrorHandler getErrorHandler() {
if( owner.getErrorHandler()==null )
return noopHandler;
else
return owner.getErrorHandler();
}
public void warning(SAXParseException e) throws SAXException {
getErrorHandler().warning(e);
}
public void error(SAXParseException e) throws SAXException {
setErrorFlag();
getErrorHandler().error(e);
}
public void fatalError(SAXParseException e) throws SAXException {
setErrorFlag();
getErrorHandler().fatalError(e);
}
};
/**
* {@link ErrorHandler} that does nothing.
*/
final ErrorHandler noopHandler = new ErrorHandler() {
public void warning(SAXParseException e) {
}
public void error(SAXParseException e) {
}
public void fatalError(SAXParseException e) {
setErrorFlag();
}
};
}