/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2010-2011, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.xml;
import java.io.IOException;
import java.util.List;
import java.util.Set;
import org.eclipse.xsd.XSDSchema;
import org.eclipse.xsd.util.XSDSchemaLocator;
import org.geotools.xml.SchemaLocationResolver;
import org.geotools.xml.XSD;
import org.geotools.xml.resolver.SchemaResolver;
/**
* {@link XSD} that uses {@link SchemaResolver} to locate schema resources in a catalog, on the
* classpath, or in a cache.
*
* @author Ben Caradoc-Davies (CSIRO Earth Science and Resource Engineering)
* @author Niels Charlier (Curtin University of Technology)
*
*
*
* @source $URL$
*/
public class AppSchemaXSD extends XSD {
private final String namespaceUri;
private final String schemaLocation;
/**
* The resolver used to locate resources.
*/
private final SchemaResolver resolver;
/**
* The {@link Configuration} used to encode documents with this schema.
*/
private AppSchemaConfiguration configuration;
/**
* @param namespaceUri
* @param schemaLocation
* @param resolver
*/
public AppSchemaXSD(String namespaceUri, String schemaLocation, SchemaResolver resolver) {
this.namespaceUri = namespaceUri;
this.schemaLocation = resolver.resolve(schemaLocation);
this.resolver = resolver;
}
/**
* @see org.geotools.xml.XSD#getNamespaceURI()
*/
@Override
public String getNamespaceURI() {
return namespaceUri;
}
/**
* @see org.geotools.xml.XSD#getSchemaLocation()
*/
@Override
public String getSchemaLocation() {
return schemaLocation;
}
/**
* @param configuration
*/
public void setConfiguration(AppSchemaConfiguration configuration) {
this.configuration = configuration;
}
/**
* @see org.geotools.xml.XSD#createSchemaLocationResolver()
*/
@Override
public SchemaLocationResolver createSchemaLocationResolver() {
return new AppSchemaLocationResolver(resolver);
}
/**
* @see org.geotools.xml.XSD#addDependencies(java.util.Set)
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
protected void addDependencies(Set dependencies) {
if (configuration != null) {
for (Configuration dependency : (List<Configuration>) configuration.getDependencies()) {
dependencies.add(dependency.getXSD());
}
}
}
@Override
public SchemaLocator createSchemaLocator() {
return new SchemaLocator(this) {
public boolean canHandle( XSDSchema schema, String namespaceURI,
String rawSchemaLocationURI, String resolvedSchemaLocationURI) {
return xsd.getNamespaceURI().equals(namespaceURI) &&
xsd.getSchemaLocation().equals(resolvedSchemaLocationURI);
}
};
}
@Override
public XSDSchemaLocator getSupplementarySchemaLocator() {
return AppSchemaXSDRegistry.getInstance();
}
@Override
protected XSDSchema buildSchema() throws IOException {
//check if schema already exists in registry, if so do not build
XSDSchema schema = AppSchemaXSDRegistry.getInstance().lookUp(schemaLocation);
if (schema == null) {
schema = super.buildSchema();
//register schema
AppSchemaXSDRegistry.getInstance().register(schema);
} else {
//reset because included schema's are not always complete
schema.reset();
}
return schema;
}
}