package thredds.catalog2.xml.parser.stax;
import thredds.catalog2.builder.ThreddsMetadataBuilder;
import thredds.catalog2.builder.ThreddsBuilderFactory;
import thredds.catalog2.builder.ThreddsBuilder;
import thredds.catalog2.xml.parser.ThreddsXmlParserException;
import thredds.catalog2.xml.parser.ThreddsXmlParserIssue;
import thredds.catalog2.xml.names.ThreddsMetadataElementNames;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.events.XMLEvent;
import javax.xml.stream.events.StartElement;
import javax.xml.namespace.QName;
/**
* _more_
*
* @author edavis
* @since 4.0
*/
class TimeCoverageElementParser extends AbstractElementParser
{
private final ThreddsMetadataBuilder parentBuilder;
private ThreddsMetadataBuilder.DateRangeBuilder selfBuilder;
private DateTypeParser.Factory startElementParserFactory;
private DateTypeParser startElementParser;
private DateTypeParser.Factory endElementParserFactory;
private DateTypeParser endElementParser;
private DurationParser.Factory durationParserFactory;
private DurationParser durationParser;
private DurationParser.Factory resolutionParserFactory;
private DurationParser resolutionParser;
private TimeCoverageElementParser( QName elementName,
XMLEventReader reader,
ThreddsBuilderFactory builderFactory,
ThreddsMetadataBuilder parentBuilder )
{
super( elementName, reader, builderFactory );
this.parentBuilder = parentBuilder;
this.startElementParserFactory = new DateTypeParser.Factory( ThreddsMetadataElementNames.DateRangeType_StartElement );
this.endElementParserFactory = new DateTypeParser.Factory( ThreddsMetadataElementNames.DateRangeType_EndElement );
this.durationParserFactory = new DurationParser.Factory( ThreddsMetadataElementNames.DateRangeType_DurationElement);
this.resolutionParserFactory = new DurationParser.Factory( ThreddsMetadataElementNames.DateRangeType_ResolutionElement);
}
ThreddsBuilder getSelfBuilder() {
return this.selfBuilder;
}
void parseStartElement()
throws ThreddsXmlParserException
{
this.getNextEventIfStartElementIsMine();
}
void handleChildStartElement()
throws ThreddsXmlParserException
{
StartElement startElement = this.peekAtNextEventIfStartElement();
if ( this.startElementParserFactory.isEventMyStartElement( startElement ) )
{
this.startElementParser = this.startElementParserFactory.getNewDateTypeParser();
this.startElementParser.parseElement( this.reader );
}
else if ( this.endElementParserFactory.isEventMyStartElement( startElement ) )
{
this.endElementParser = this.endElementParserFactory.getNewDateTypeParser();
this.endElementParser.parseElement( this.reader );
}
else if ( this.durationParserFactory.isEventMyStartElement( startElement ) )
{
this.durationParser = this.durationParserFactory.getNewParser();
this.durationParser.parseElement( this.reader );
}
else if ( this.resolutionParserFactory.isEventMyStartElement( startElement ) )
{
this.resolutionParser = this.resolutionParserFactory.getNewParser();
this.resolutionParser.parseElement( this.reader );
}
else
{
String unexpectedElement = StaxThreddsXmlParserUtils.consumeElementAndConvertToXmlString( this.reader );
ThreddsXmlParserIssue issue = new ThreddsXmlParserIssue( ThreddsXmlParserIssue.Severity.ERROR, "Unrecognized element: " + unexpectedElement, this.parentBuilder, null);
throw new ThreddsXmlParserException( issue);
}
}
void postProcessingAfterEndElement()
throws ThreddsXmlParserException
{
String startDate = this.startElementParser != null ? this.startElementParser.getValue() : null;
String startDateFormat = this.startElementParser != null ? this.startElementParser.getFormat() : null;
String endDate = this.endElementParser != null ? this.endElementParser.getValue() : null;
String endDateFormat = this.endElementParser != null ? this.endElementParser.getFormat() : null;
String duration = this.durationParser != null ? this.durationParser.getValue() : null;
String resolution = this.resolutionParser != null ? this.resolutionParser.getValue() : null;
this.selfBuilder = this.parentBuilder.setTemporalCoverageBuilder( startDate, startDateFormat,
endDate, endDateFormat,
duration, resolution );
}
static class Factory
{
private QName elementName;
Factory() {
this.elementName = ThreddsMetadataElementNames.TimeCoverageElement;
}
boolean isEventMyStartElement( XMLEvent event )
{
return StaxThreddsXmlParserUtils.isEventStartOrEndElementWithMatchingName( event, this.elementName );
}
TimeCoverageElementParser getNewParser( XMLEventReader reader,
ThreddsBuilderFactory builderFactory,
ThreddsMetadataBuilder parentBuilder )
{
return new TimeCoverageElementParser( this.elementName, reader, builderFactory, parentBuilder );
}
}
static class DurationParser
{
private QName elementName;
private String value;
private DurationParser( QName elementName ) {
this.elementName = elementName;
}
String getValue() {
return this.value;
}
void parseElement( XMLEventReader reader )
throws ThreddsXmlParserException
{
StaxThreddsXmlParserUtils.readNextEventCheckItIsStartElementWithExpectedName( reader, this.elementName );
this.value = StaxThreddsXmlParserUtils.getCharacterContent( reader, this.elementName );
StaxThreddsXmlParserUtils.readNextEventCheckItIsEndElementWithExpectedName( reader, this.elementName );
}
static class Factory
{
private QName elementName;
Factory( QName elementName ) {
this.elementName = elementName;
}
boolean isEventMyStartElement( XMLEvent event ) {
return StaxThreddsXmlParserUtils.isEventStartOrEndElementWithMatchingName( event, this.elementName );
}
DurationParser getNewParser() {
return new DurationParser( this.elementName );
}
}
}
}