/*
* Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
* Access and use of this software shall impose the following obligations
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* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
* documentation for any purpose whatsoever, provided that this entire
* notice appears in all copies of the software, derivative works and
* supporting documentation. Further, UCAR requests that the user credit
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* software or in any product that includes this software. The names UCAR
* and/or Unidata, however, may not be used in any advertising or publicity
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*
* THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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*/
package thredds.catalog2.xml.parser.stax;
import thredds.catalog2.builder.CatalogBuilder;
import thredds.catalog2.builder.ServiceBuilder;
import thredds.catalog2.builder.ThreddsBuilderFactory;
import thredds.catalog2.xml.parser.ThreddsXmlParserException;
import thredds.catalog2.xml.names.ServiceElementNames;
import thredds.catalog.ServiceType;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.Attribute;
import javax.xml.stream.events.XMLEvent;
import javax.xml.stream.XMLEventReader;
import javax.xml.namespace.QName;
import java.net.URI;
import java.net.URISyntaxException;
/**
* _more_
*
* @author edavis
* @since 4.0
*/
class ServiceElementParser extends AbstractElementParser
{
private final CatalogBuilder parentCatalogBuilder;
private final ServiceBuilder parentServiceBuilder;
private final ServiceElementParser.Factory serviceElemParserFactory;
private final PropertyElementParser.Factory propertyElemParserFactory;
private ServiceBuilder selfBuilder;
private ServiceElementParser( QName elementName,
XMLEventReader reader,
ThreddsBuilderFactory builderFactory,
CatalogBuilder parentCatalogBuilder )
{
super( elementName, reader, builderFactory);
this.parentCatalogBuilder = parentCatalogBuilder;
this.parentServiceBuilder = null;
this.serviceElemParserFactory = new Factory();
this.propertyElemParserFactory = new PropertyElementParser.Factory();
}
private ServiceElementParser( QName elementName,
XMLEventReader reader,
ThreddsBuilderFactory builderFactory,
ServiceBuilder parentServiceBuilder )
{
super( elementName, reader, builderFactory );
this.parentCatalogBuilder = null;
this.parentServiceBuilder = parentServiceBuilder;
this.serviceElemParserFactory = new Factory();
this.propertyElemParserFactory = new PropertyElementParser.Factory();
}
ServiceBuilder getSelfBuilder() {
return this.selfBuilder;
}
void parseStartElement()
throws ThreddsXmlParserException
{
StartElement startElement = this.getNextEventIfStartElementIsMine();
Attribute nameAtt = startElement.getAttributeByName( ServiceElementNames.ServiceElement_Name );
String name = nameAtt.getValue();
Attribute serviceTypeAtt = startElement.getAttributeByName( ServiceElementNames.ServiceElement_ServiceType );
ServiceType serviceType = ServiceType.getType( serviceTypeAtt.getValue() );
Attribute baseUriAtt = startElement.getAttributeByName( ServiceElementNames.ServiceElement_Base );
String baseUriString = baseUriAtt.getValue();
URI baseUri = null;
try
{
baseUri = new URI( baseUriString );
}
catch ( URISyntaxException e )
{
log.error( "parseElement(): Bad service base URI [" + baseUriString + "]: " + e.getMessage(), e );
throw new ThreddsXmlParserException( "Bad service base URI [" + baseUriString + "]", e );
}
if ( this.parentCatalogBuilder != null )
this.selfBuilder = this.parentCatalogBuilder.addService( name, serviceType, baseUri );
else if ( this.parentServiceBuilder != null )
this.selfBuilder = this.parentServiceBuilder.addService( name, serviceType, baseUri );
else
throw new ThreddsXmlParserException( "" );
Attribute suffixAtt = startElement.getAttributeByName( ServiceElementNames.ServiceElement_Suffix );
if ( suffixAtt != null )
{
this.selfBuilder.setSuffix( suffixAtt.getValue() );
}
Attribute descriptionAtt = startElement.getAttributeByName( ServiceElementNames.ServiceElement_Description );
if ( descriptionAtt != null )
{
this.selfBuilder.setSuffix( descriptionAtt.getValue() );
}
}
void handleChildStartElement()
throws ThreddsXmlParserException
{
StartElement startElement = this.peekAtNextEventIfStartElement();
if ( this.serviceElemParserFactory.isEventMyStartElement( startElement ) )
{
ServiceElementParser serviceElemParser = this.serviceElemParserFactory.getNewParser( reader,
this.builderFactory,
this.selfBuilder );
serviceElemParser.parse();
}
else if ( this.propertyElemParserFactory.isEventMyStartElement( startElement ))
{
PropertyElementParser parser = this.propertyElemParserFactory.getNewParser( reader,
this.builderFactory,
this.selfBuilder);
parser.parse();
}
else
{
// ToDo Save the results in a ThreddsXmlParserIssue (Warning) and report.
StaxThreddsXmlParserUtils.consumeElementAndConvertToXmlString( this.reader );
}
}
void postProcessingAfterEndElement()
throws ThreddsXmlParserException
{
return;
}
static class Factory
{
private QName elementName;
Factory() {
this.elementName = ServiceElementNames.ServiceElement;
}
boolean isEventMyStartElement( XMLEvent event ) {
return StaxThreddsXmlParserUtils.isEventStartOrEndElementWithMatchingName( event, this.elementName );
}
ServiceElementParser getNewParser( XMLEventReader reader,
ThreddsBuilderFactory builderFactory,
CatalogBuilder parentCatalogBuilder )
{
return new ServiceElementParser( this.elementName, reader, builderFactory, parentCatalogBuilder );
}
ServiceElementParser getNewParser( XMLEventReader reader,
ThreddsBuilderFactory builderFactory,
ServiceBuilder parentServiceBuilder )
{
return new ServiceElementParser( this.elementName, reader, builderFactory, parentServiceBuilder );
}
}
}