Package com.hp.hpl.jena.sparql.expr

Examples of com.hp.hpl.jena.sparql.expr.ExprEvalException

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        return NodeValue.makeNode(n) ;
    }
   
    public static NodeValue strLang(NodeValue v1, NodeValue v2)
    {
        if ( ! v1.isString() ) throw new ExprEvalException("Not a string (arg 1): "+v1) ;
        if ( ! v2.isString() ) throw new ExprEvalException("Not a string (arg 2): "+v2) ;
       
        String lex = v1.asString() ;
        String lang = v2.asString() ;
        // Check?
       
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    /** check and get a string (may be a simple literal, literal with language tag or an XSD string). */
    public static Node checkAndGetStringLiteral(String label, NodeValue nv)
    {
        Node n = nv.asNode() ;
        if ( ! n.isLiteral() )
            throw new ExprEvalException(label+": Not a literal: "+nv) ;
        RDFDatatype dt = n.getLiteralDatatype() ;
        String lang = n.getLiteralLanguage() ;
       
        if ( dt != null && ! dt.equals(XSDDatatype.XSDstring) )
            throw new ExprEvalException(label+": Not a string literal: "+nv) ;
        return n ;
    }
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        if ( n1.getLiteralDatatype() != null )
        {
            // n1 is an xsd string by checkAndGetString
            if ( XSDDatatype.XSDstring.equals(n2.getLiteralDatatypeURI()) ) return ;
            if ( n2.getLiteralLanguage().equals("") ) return ;
            throw new ExprEvalException(label+": Incompatible: "+arg1+" and "+arg2) ;
        }
       
        // Incompatible?
        // arg1 simple or xsd:string, arg2 has a lang.
        if ( lang1.equals("") && ! lang2.equals("") )
            throw new ExprEvalException(label+": Incompatible: "+arg1+" and "+arg2) ;
        // arg1 with lang, arg2 has a different lang.
        if ( ! lang1.equals("") && (!lang2.equals("") && ! lang1.equals(lang2) ) ) 
            throw new ExprEvalException(label+": Incompatible: "+arg1+" and "+arg2) ;
    }
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                boolean b = n1.getLiteralLexicalForm().equals(n2.getLiteralLexicalForm()) ;
                if ( b )
                    return true ;
            }
            // Two literals, different terms, different language tags.
            NodeValue.raise(new ExprEvalException("Mismatch in RDFterm-equals: "+n1+", "+n2)) ;
        }
        // One or both not a literal.
        return false ;
    }
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//        if ( node.isBlank() )   return node.getBlankNodeId().getLabelString() ;
//        if ( node.isBlank() )   return "" ;
        if ( node.isBlank() )
            NodeValue.raise(new ExprTypeException("Blank node: "+node)) ;
       
        NodeValue.raise(new ExprEvalException("Not a string: "+node)) ;
        return "[undef]" ;
    }
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        }
       
        // Simple literal or xsd:string
        String str = simpleLiteralOrXSDString(nv) ;
        if  (str == null )
            throw new ExprEvalException("Can't make an IRI from "+nv) ;

        IRI iri = null ;
        String iriStr = nv.getLiteralLexicalForm() ;
           
        // Level of checking?
        if ( baseIRI != null )
        {
            IRI base = iriFactory.create(baseIRI);
            iri = base.create(iriStr);
        }
        else
            iri = iriFactory.create(iriStr);

        if ( ! iri.isAbsolute() )
            throw new ExprEvalException("Relative IRI string: "+iriStr) ;
        if ( warningsForIRIs && iri.hasViolation(false) )
        {
            String msg = "unknown violation from IRI library" ;
            Iterator<Violation> iter = iri.violations(false) ;
            if ( iter.hasNext() )
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        return null ;
    }
   
    public static NodeValue strDatatype(NodeValue v1, NodeValue v2)
    {
        if ( ! v1.isString() ) throw new ExprEvalException("Not a string (arg 1): "+v1) ;
        if ( ! v2.isIRI() ) throw new ExprEvalException("Not an IRI (arg 2): "+v2) ;
       
        String lex = v1.asString() ;
        Node dt = v2.asNode() ;
        // Check?
       
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        return NodeValue.makeNode(n) ;
    }
   
    public static NodeValue strLang(NodeValue v1, NodeValue v2)
    {
        if ( ! v1.isString() ) throw new ExprEvalException("Not a string (arg 1): "+v1) ;
        if ( ! v2.isString() ) throw new ExprEvalException("Not a string (arg 2): "+v2) ;
       
        String lex = v1.asString() ;
        String lang = v2.asString() ;
        // Check?
       
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            // http://www.w3.org/TR/xpath-functions/#casting
            String s = null ;
            Node n = v.asNode() ;

            if ( n.isBlank() )
                throw new ExprEvalException("CastXSD: Can't cast blank nodes: "+v) ;

            if ( n.isURI() )
            {
                if ( castType.equals(XSDDatatype.XSDstring) )
                    s = n.getURI() ;
                else
                    throw new ExprEvalException("CastXSD: Can't cast node: "+v+" to "+castType.getURI()) ;
            }
            else if ( n.isLiteral() )
                // What if there is a lang tag?
                s = n.getLiteralLexicalForm() ;
            else
                throw new ExprEvalException("CastXSD: Can't cast node: "+v+ "(not a literal, not URI to string)") ;

            if ( s == null && v.isString() )
                s = v.getString() ;

            if ( s == null )
                throw new ExprEvalException("CastXSD: Can't cast: "+v+ "(has no string appearance)") ;
           
            //        // Special case - non-normalised xsd:booleans use 0 and 1.
            //        if ( v.isBoolean() )
            //        {
            //            if ( s.equals("0") ) s = "false" ;
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        protected NodeValue cast(String s, NodeValue nv, XSDDatatype castType2)
        {
            // Plain cast.
            if ( ! castType.isValid(s) )
                throw new ExprEvalException("CastXSD: Not a valid literal form: "+s) ;
            // Unfortunately, validity testing happens in NodeValue.makeNode as well.
            return NodeValue.makeNode(s, castType) ;
        }
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  • com.hp.hpl.jena.sparql.expr.aggregate.AggSum$AccSum
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  • com.hp.hpl.jena.sparql.function.FunctionBase0
  • com.hp.hpl.jena.sparql.function.FunctionBase1
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