Package thredds.catalog2.xml.parser.stax

Source Code of thredds.catalog2.xml.parser.stax.AccessElementParser$Factory

/*
* 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
* and understandings on the user. The user is granted the right, without
* 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
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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
* to endorse or promote any products or commercial entity unless specific
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* understands that UCAR/Unidata is not obligated to provide the user with
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*
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*/
package thredds.catalog2.xml.parser.stax;

import thredds.catalog2.builder.*;
import thredds.catalog2.xml.parser.ThreddsXmlParserException;
import thredds.catalog2.xml.names.AccessElementNames;
import thredds.catalog.DataFormatType;

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;

/**
* _more_
*
* @author edavis
* @since 4.0
*/
class AccessElementParser extends AbstractElementParser
{
  private final DatasetBuilder parentDatasetBuilder;

  private AccessBuilder selfBuilder;

  private AccessElementParser( QName elementName,
                               XMLEventReader reader,
                               ThreddsBuilderFactory builderFactory,
                               DatasetBuilder parentDatasetBuilder )
  {
    super( elementName, reader, builderFactory );
    this.parentDatasetBuilder = parentDatasetBuilder;
  }

  AccessBuilder getSelfBuilder() {
    return this.selfBuilder;
  }

  void parseStartElement()
          throws ThreddsXmlParserException
  {
    StartElement startElement = this.getNextEventIfStartElementIsMine();
      
    if ( this.parentDatasetBuilder != null )
      this.selfBuilder = this.parentDatasetBuilder.addAccessBuilder();
    else
      throw new ThreddsXmlParserException( "" );

    Attribute serviceNameAtt = startElement.getAttributeByName( AccessElementNames.AccessElement_ServiceName );
    if ( serviceNameAtt != null )
    {
      String serviceName = serviceNameAtt.getValue();
      ServiceBuilder serviceBuilder = this.parentDatasetBuilder.getParentCatalogBuilder().findServiceBuilderByNameGlobally( serviceName );
      this.selfBuilder.setServiceBuilder( serviceBuilder );
    }

    Attribute urlPathAtt = startElement.getAttributeByName( AccessElementNames.AccessElement_UrlPath );
    String urlPath = urlPathAtt.getValue();

    this.selfBuilder.setUrlPath( urlPath );

    Attribute dataFormatAtt = startElement.getAttributeByName( AccessElementNames.AccessElement_DataFormat );
    if ( dataFormatAtt != null )
    {
      this.selfBuilder.setDataFormat( DataFormatType.getType( dataFormatAtt.getValue() ) );
    }

    return;
  }

  void handleChildStartElement()
          throws ThreddsXmlParserException
  {
    // 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 = AccessElementNames.AccessElement;
    }

    boolean isEventMyStartElement( XMLEvent event ) {
      return StaxThreddsXmlParserUtils.isEventStartOrEndElementWithMatchingName( event, this.elementName );
    }

    AccessElementParser getNewParser( XMLEventReader reader,
                                      ThreddsBuilderFactory builderFactory,
                                      DatasetBuilder parentDatasetBuilder )
    {
      return new AccessElementParser( this.elementName, reader, builderFactory, parentDatasetBuilder );
    }
  }
}
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