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pull metadata link from wcs capabilities

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Samweli committed Dec 17, 2019
1 parent 77497b9 commit 02cf6f3bb64dc58e47c6f48683747ac17b5b8086
@@ -736,6 +736,8 @@ void QgsWcsCapabilities::parseCoverageOfferingBrief( QDomElement const &e, QgsWc
coverageSummary.title = firstChildText( e, QStringLiteral( "label" ) );
coverageSummary.abstract = firstChildText( e, QStringLiteral( "description" ) );

parseMetadataLink( e, coverageSummary.metadataLink );

QList<QDomElement> posElements = domElements( e, QStringLiteral( "lonLatEnvelope.pos" ) );
if ( posElements.size() != 2 )
{
@@ -765,6 +767,28 @@ void QgsWcsCapabilities::parseCoverageOfferingBrief( QDomElement const &e, QgsWc
QgsDebugMsg( QStringLiteral( "coverage orderId = %1 identifier = %2" ).arg( coverageSummary.orderId ).arg( coverageSummary.identifier ) );
}

void QgsWcsCapabilities::parseMetadataLink( QDomElement const &e, QgsWcsMetadataLinkProperty &metadataLink )
{
QDomElement metadataElement = firstChild( e, QStringLiteral( "metadataLink" ) );

if ( !metadataElement.isNull() )
{
metadataLink.metadataType = metadataElement.attribute( QStringLiteral( "metadataType" ) );
metadataLink.xlinkHref = elementLink( metadataElement );
}

}

QString QgsWcsCapabilities::elementLink( QDomElement const &e )
{
if ( !e.isNull() )
{
return QUrl::fromEncoded( e.attribute( QStringLiteral( "xlink:href" ) ).toUtf8() ).toString();
}

return QString();
}

bool QgsWcsCapabilities::convertToDom( QByteArray const &xml )
{
QgsDebugMsgLevel( QStringLiteral( "Entered." ), 4 );
@@ -34,6 +34,13 @@
class QNetworkAccessManager;
class QNetworkReply;

//! Metadata Link Property structure
struct QgsWcsMetadataLinkProperty
{
QString metadataType;
QString xlinkHref;
};

//! CoverageSummary structure
struct QgsWcsCoverageSummary
{
@@ -48,6 +55,8 @@ struct QgsWcsCoverageSummary
QList<double> nullValues;
QgsRectangle wgs84BoundingBox; // almost useless, we need the native
QString nativeCrs;
//Optional metadataLink
QgsWcsMetadataLinkProperty metadataLink;
// Map of bounding boxes, key is CRS name (srsName), e.g. EPSG:4326
QMap<QString, QgsRectangle> boundingBoxes;
QgsRectangle nativeBoundingBox;
@@ -114,6 +123,9 @@ class QgsWcsCapabilities : public QObject
*/
void coverageParents( QMap<int, int> &parents, QMap<int, QStringList> &parentNames ) const;

// Parse metadata element from the document
void parseMetadataLink( QDomElement const &e, QgsWcsMetadataLinkProperty &metadataLink );

//! Gets coverage summary for identifier
QgsWcsCoverageSummary coverage( QString const &identifier );

@@ -212,6 +224,9 @@ class QgsWcsCapabilities : public QObject
//! Gets sub elements texts by path
static QStringList domElementsTexts( const QDomElement &element, const QString &path );

//! Gets given element link tag value
static QString elementLink( QDomElement const &e );

signals:
//! \brief emit a signal to notify of a progress event
void progressChanged( int progress, int totalSteps );
@@ -1244,6 +1244,14 @@ QString QgsWcsProvider::coverageMetadata( const QgsWcsCoverageSummary &coverage
metadata += htmlRow( tr( "Name (identifier)" ), coverage.identifier );
metadata += htmlRow( tr( "Title" ), coverage.title );
metadata += htmlRow( tr( "Abstract" ), coverage.abstract );

if ( !coverage.metadataLink.metadataType.isNull() &&
!coverage.metadataLink.xlinkHref.isNull() )
{
metadata += htmlRow( tr( "Metadata Type" ), coverage.metadataLink.metadataType );
metadata += htmlRow( tr( "Metadata Link" ), coverage.metadataLink.xlinkHref );
}

#if 0
// We don't have size, nativeCrs, nativeBoundingBox etc. until describe coverage which would be heavy for all coverages
metadata += htmlRow( tr( "Fixed Width" ), QString::number( coverage.width ) );

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