/**
* Copyright 2005-2011 Noelios Technologies.
*
* The contents of this file are subject to the terms of one of the following
* open source licenses: LGPL 3.0 or LGPL 2.1 or CDDL 1.0 or EPL 1.0 (the
* "Licenses"). You can select the license that you prefer but you may not use
* this file except in compliance with one of these Licenses.
*
* You can obtain a copy of the LGPL 3.0 license at
* http://www.opensource.org/licenses/lgpl-3.0.html
*
* You can obtain a copy of the LGPL 2.1 license at
* http://www.opensource.org/licenses/lgpl-2.1.php
*
* You can obtain a copy of the CDDL 1.0 license at
* http://www.opensource.org/licenses/cddl1.php
*
* You can obtain a copy of the EPL 1.0 license at
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* See the Licenses for the specific language governing permissions and
* limitations under the Licenses.
*
* Alternatively, you can obtain a royalty free commercial license with less
* limitations, transferable or non-transferable, directly at
* http://www.noelios.com/products/restlet-engine
*
* Restlet is a registered trademark of Noelios Technologies.
*/
package org.restlet.ext.rdf.internal.turtle;
import java.io.IOException;
import org.restlet.ext.rdf.Literal;
import org.restlet.ext.rdf.internal.RdfConstants;
/**
* Represents a still unidentified Turtle token.
*
* @author Thierry Boileau
*/
public class Token extends LexicalUnit {
/**
* Constructor with arguments.
*
* @param contentHandler
* The document's parent handler.
* @param context
* The parsing context.
*/
public Token(RdfTurtleReader contentHandler, Context context)
throws IOException {
super(contentHandler, context);
this.parse();
}
/**
* Constructor with value.
*
* @param value
* The value of the current lexical unit.
*/
public Token(String value) {
super(value);
}
@Override
public void parse() throws IOException {
getContentReader().parseToken(this);
}
@Override
public Object resolve() {
Object result = null;
if ((getContext() != null) && getContext().isQName(getValue())) {
result = (getContext() != null) ? getContext().resolve(getValue())
: getValue();
} else {
// Must be a literal
if (getValue().charAt(0) > '0' && getValue().charAt(0) < '9') {
if (getValue().contains(".")) {
// Consider it as a float
result = new Literal(getValue(),
RdfConstants.XML_SCHEMA_TYPE_FLOAT);
} else {
// Consider it as an integer
result = new Literal(getValue(),
RdfConstants.XML_SCHEMA_TYPE_INTEGER);
}
} else {
org.restlet.Context.getCurrentLogger().warning(
"Cannot identify this token value: " + getValue());
if (getContentReader() != null) {
org.restlet.Context.getCurrentLogger().warning(
getContentReader().getParsingMessage());
}
}
}
return result;
}
@Override
public String toString() {
return getValue();
}
}