/*
* $Header$
* $Revision: 3144 $
* $Date: 2009-10-13 06:39:41 +1000 (Tue, 13 Oct 2009) $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2003-2009 The JRDF Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* the JRDF Project (http://jrdf.sf.net/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The JRDF Project" and "JRDF" must not be used to endorse
* or promote products derived from this software without prior written
* permission. For written permission, please contact
* newmana@users.sourceforge.net.
*
* 5. Products derived from this software may not be called "JRDF"
* nor may "JRDF" appear in their names without prior written
* permission of the JRDF Project.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the JRDF Project. For more
* information on JRDF, please see <http://jrdf.sourceforge.net/>.
*
*/
package org.jrdf.sparql.builder;
import org.jrdf.graph.GraphElementFactory;
import org.jrdf.graph.GraphElementFactoryException;
import org.jrdf.graph.Node;
import org.jrdf.graph.URIReference;
import org.jrdf.sparql.parser.node.AIriRefIriRefOrPrefixedName;
import org.jrdf.sparql.parser.node.APrefixedNameIriRefOrPrefixedName;
import org.jrdf.sparql.parser.node.AQnameQnameElement;
import org.jrdf.sparql.parser.node.Token;
import org.jrdf.sparql.parser.parser.ParserException;
import java.net.URI;
import java.util.Map;
/**
* @author Yuan-Fang Li
* @version $Id: URIReferenceBuilderImpl.java 3144 2009-10-12 20:39:41Z newmana $
*/
public class URIReferenceBuilderImpl implements URIReferenceBuilder {
private final GraphElementFactory factory;
private final Map<String, String> prefixMap;
private ParserException exception;
private URIReference uriRef;
public URIReferenceBuilderImpl(GraphElementFactory newFactory, Map<String, String> newPrefixMap) {
this.factory = newFactory;
this.prefixMap = newPrefixMap;
}
public Node createURIReference(AIriRefIriRefOrPrefixedName node) throws ParserException {
final URI uri = TokenHelper.getResource(node.getResource());
createFromURIReference(node.getResource(), uri);
return getResult(node);
}
public Node createURIReference(APrefixedNameIriRefOrPrefixedName node) throws ParserException {
createFromPrefixedName(node);
return getResult(node);
}
private void createFromPrefixedName(APrefixedNameIriRefOrPrefixedName node) {
final AQnameQnameElement element = (AQnameQnameElement) node.getQnameElement();
final String prefix = element.getNcnamePrefix().getText();
final String namespace = prefixMap.get(prefix);
final String localName = element.getNcName().getText();
createFromURIReference(element.getNcName(), URI.create(namespace + localName));
}
private Node getResult(org.jrdf.sparql.parser.node.Node element) throws ParserException {
if (exception == null) {
if (uriRef != null) {
return uriRef;
} else {
throw new IllegalStateException("Unable to parse element: " + element);
}
} else {
throw exception;
}
}
private void createFromURIReference(Token node, URI uri) {
try {
uriRef = factory.createURIReference(uri);
} catch (GraphElementFactoryException e) {
exception = new ParserException(node,
"Cannot create URI reference for URI: " + uri.toString());
}
}
}