/*
* 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
* supporting documentation. Further, UCAR requests that the user credit
* UCAR/Unidata in any publications that result from the use of this
* 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
* any support, consulting, training or assistance of any kind with regard
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*
* THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package thredds.wcs.v1_0_0_Plus;
import ucar.nc2.dt.GridCoordSystem;
import ucar.nc2.dataset.CoordinateAxis1D;
import ucar.nc2.dataset.CoordinateAxis;
import ucar.unidata.geoloc.LatLonRect;
import ucar.unidata.geoloc.LatLonPoint;
import org.jdom.Element;
import org.jdom.Namespace;
/**
* Represent the incoming WCS 1.0.0+ request.
*
* @author edavis
* @since 4.0
*/
public abstract class WcsRequest
{
protected static final Namespace wcsNS = Namespace.getNamespace( "http://www.opengis.net/wcs" );
protected static final Namespace gmlNS = Namespace.getNamespace( "gml", "http://www.opengis.net/gml" );
protected static final Namespace xlinkNS = Namespace.getNamespace( "xlink", "http://www.w3.org/1999/xlink" );
// General request info
private Operation operation;
private String version;
// Dataset
private WcsDataset dataset;
public enum Operation
{
GetCapabilities, DescribeCoverage, GetCoverage
}
public enum RequestEncoding
{
GET_KVP, POST_XML, POST_SOAP
}
public enum Format
{
NONE( ""),
GeoTIFF("image/tiff"),
GeoTIFF_Float("image/tiff"),
NetCDF3("application/x-netcdf");
private String mimeType;
Format( String mimeType) { this.mimeType = mimeType; }
public String getMimeType() { return mimeType; }
public static Format getFormat( String mimeType )
{
for ( Format curSection : Format.values() )
{
if ( curSection.mimeType.equals( mimeType ) )
return curSection;
}
throw new IllegalArgumentException( "No such instance <" + mimeType + ">." );
}
}
/*
All( "" ),
Service( "WCS_Capabilities/Service" ),
Capability( "WCS_Capabilities/Capability" ),
ContentMetadata( "WCS_Capabilities/ContentMetadata" );
private final String altId;
Section( String altId )
{
this.altId = altId;
}
public String toString()
{
return altId;
}
public static Section getSection( String altId )
{
for ( Section curSection : Section.values() )
{
if ( curSection.altId.equals( altId ) )
return curSection;
}
throw new IllegalArgumentException( "No such instance <" + altId + ">." );
}
*/
WcsRequest( Operation operation, String version, WcsDataset dataset )
{
this.operation = operation;
this.version = version;
this.dataset = dataset;
if ( operation == null )
throw new IllegalArgumentException( "Non-null operation required." );
if ( this.dataset == null )
throw new IllegalArgumentException( "Non-null dataset required." );
}
public Operation getOperation() { return operation; }
public String getVersion() { return version; }
public WcsDataset getDataset() { return dataset; }
protected Element genCoverageOfferingBriefElem( String elemName,
String covName, String covLabel, String covDescription,
GridCoordSystem gridCoordSys )
{
// <CoverageOfferingBrief>
Element briefElem = new Element( elemName, wcsNS );
// <CoverageOfferingBrief>/gml:metaDataProperty [0..*]
// <CoverageOfferingBrief>/gml:description [0..1]
// <CoverageOfferingBrief>/gml:name [0..*]
// <CoverageOfferingBrief>/metadataLink [0..*]
// <CoverageOfferingBrief>/description [0..1]
// <CoverageOfferingBrief>/name [1]
// <CoverageOfferingBrief>/label [1]
if ( covDescription != null && covDescription.length() != 0)
briefElem.addContent( new Element( "description", wcsNS ).addContent( covDescription ) );
briefElem.addContent( new Element( "name", wcsNS ).addContent( covName ) );
briefElem.addContent( new Element( "label", wcsNS ).addContent( covLabel ) );
// <CoverageOfferingBrief>/lonLatEnvelope [1]
briefElem.addContent( genLonLatEnvelope( gridCoordSys ) );
// ToDo Add keywords capabilities.
// <CoverageOfferingBrief>/keywords [0..*] /keywords [1..*] and /type [0..1]
return briefElem;
}
protected Element genLonLatEnvelope( GridCoordSystem gcs )
{
// <CoverageOfferingBrief>/lonLatEnvelope
Element lonLatEnvelopeElem = new Element( "lonLatEnvelope", wcsNS );
lonLatEnvelopeElem.setAttribute( "srsName", "urn:ogc:def:crs:OGC:1.3:CRS84" );
LatLonRect llbb = gcs.getLatLonBoundingBox();
LatLonPoint llpt = llbb.getLowerLeftPoint();
LatLonPoint urpt = llbb.getUpperRightPoint();
// <CoverageOfferingBrief>/lonLatEnvelope/gml:pos
String firstPosition = llpt.getLongitude() + " " + llpt.getLatitude();
double lon = llpt.getLongitude() + llbb.getWidth();
String secondPosition = lon + " " + urpt.getLatitude();
// ToDo WCS 1.0Plus - Deal with conversion to meters. (Yikes!!)
CoordinateAxis1D vertAxis = gcs.getVerticalAxis();
if ( vertAxis != null )
{
// See verAxis.getUnitsString()
double zeroIndexValue = vertAxis.getCoordValue( 0 );
double sizeIndexValue = vertAxis.getCoordValue( ( (int) vertAxis.getSize() ) - 1 );
if ( vertAxis.getPositive().equals( ucar.nc2.constants.CF.POSITIVE_UP))
{
firstPosition += " " + zeroIndexValue;
secondPosition += " " + sizeIndexValue;
}
else
{
firstPosition += " " + sizeIndexValue;
secondPosition += " " + zeroIndexValue;
}
}
lonLatEnvelopeElem.addContent(
new Element( "pos", gmlNS ).addContent( firstPosition ) );
lonLatEnvelopeElem.addContent(
new Element( "pos", gmlNS ).addContent( secondPosition ) );
// <CoverageOfferingBrief>/lonLatEnvelope/gml:timePostion [2]
if ( gcs.hasTimeAxis() )
{
lonLatEnvelopeElem.addContent(
new Element( "timePosition", gmlNS).addContent(
gcs.getDateRange().getStart().toDateTimeStringISO()) );
lonLatEnvelopeElem.addContent(
new Element( "timePosition", gmlNS).addContent(
gcs.getDateRange().getEnd().toDateTimeStringISO()) );
}
return lonLatEnvelopeElem;
}
}