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The NetCDF-Java Library is a Java interface to NetCDF files,
as well as to many other types of scientific data formats.
/*
* 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
* written permission is obtained from UCAR/Unidata. The user also
* understands that UCAR/Unidata is not obligated to provide the user with
* any support, consulting, training or assistance of any kind with regard
* to the use, operation and performance of this software nor to provide
* the user with any updates, revisions, new versions or "bug fixes."
*
* 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,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package thredds.catalog2.xml.names;
import thredds.util.HttpUriResolver;
import thredds.util.HttpUriResolverFactory;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import javax.xml.XMLConstants;
import javax.xml.transform.stream.StreamSource;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URISyntaxException;
import org.xml.sax.SAXException;
/**
* Represent an XML namespace inlucing, if available, the location of the
* XML Schema for the namespace as both a local resource name and as a
* remote resource URL.
*
* @author edavis
* @since 4.0
*/
public enum CatalogNamespace
{
CATALOG_1_0( "",
"http://www.unidata.ucar.edu/namespaces/thredds/InvCatalog/v1.0",
"/resources/thredds/schemas/InvCatalog.1.0.2.xsd",
"http://www.unidata.ucar.edu/schemas/thredds/InvCatalog.1.0.2.xsd"),
CATALOG_0_6( "oldThredds",
"http://www.unidata.ucar.edu/thredds",
"/resources/thredds/schemas/InvCatalog.0.6.xsd",
"http://www.unidata.ucar.edu/schemas/thredds/InvCatalog.0.6.xsd"),
XLINK( "xlink",
"http://www.w3.org/1999/xlink",
"/resources/thredds/schemas/xlink.xsd",
// "/resources/schemas/xlink/1.0.0/xlinks.xsd", // OGC version
"");
public static CatalogNamespace getNamespace( String namespaceUri )
{
if ( namespaceUri == null )
return null;
for ( CatalogNamespace curNs : CatalogNamespace.values() )
{
if ( curNs.namespaceUri.equals( namespaceUri ) )
return curNs;
}
return null;
}
private String standardPrefix;
private String namespaceUri;
private String schemaLocalResourceName;
private URI schemaRemoteResourceUri;
CatalogNamespace( String standardPrefix, String namespaceUri,
String schemaLocalResourceName, String schemaRemoteResourceUri )
{
if ( namespaceUri == null )
throw new IllegalArgumentException( "The XML Namespace URI may not be null.");
if ( schemaRemoteResourceUri == null )
throw new IllegalArgumentException( "The remote resourc URL for the XML Schema may not be null.");
this.standardPrefix = standardPrefix;
this.namespaceUri = namespaceUri;
this.schemaLocalResourceName = schemaLocalResourceName;
try
{
this.schemaRemoteResourceUri = new URI( schemaRemoteResourceUri );
}
catch ( URISyntaxException e )
{
throw new IllegalArgumentException( "Badly formed resource URI [" + schemaRemoteResourceUri + "].", e);
}
}
public String getStandardPrefix()
{
return this.standardPrefix;
}
public String getNamespaceUri()
{
return this.namespaceUri;
}
public String getSchemaLocalResourceName()
{
return this.schemaLocalResourceName;
}
public URI getSchemaRemoteResourceUri()
{
return this.schemaRemoteResourceUri;
}
public InputStream getSchemaAsInputStream()
throws IOException
{
InputStream inStream = null;
if ( this.getSchemaLocalResourceName() != null )
inStream = this.getClass().getClassLoader().getResourceAsStream( this.getSchemaLocalResourceName() );
if ( inStream == null && this.getSchemaRemoteResourceUri() != null )
{
HttpUriResolver httpUriResolver = HttpUriResolverFactory.getDefaultHttpUriResolver( this.getSchemaRemoteResourceUri() );
httpUriResolver.makeRequest();
inStream = httpUriResolver.getResponseBodyAsInputStream();
}
return inStream;
}
public Schema getSchema()
throws IOException, SAXException
{
SchemaFactory schemaFactory = SchemaFactory.newInstance( XMLConstants.W3C_XML_SCHEMA_NS_URI );
StreamSource source = new StreamSource( this.getSchemaAsInputStream() );
source.setSystemId( this.getSchemaRemoteResourceUri().toString() );
return schemaFactory.newSchema( source );
}
}