Examples with Expression org.apache.clerezza.rdf.core.sparql.query.Expression used on opensource projects

Example 1 with Expression

use of org.apache.clerezza.rdf.core.sparql.query.Expression in project stanbol by apache.

the class UpperCaseAtom method adapt.

@SuppressWarnings("unchecked")
@Override
public <T> T adapt(RuleAtom ruleAtom) throws RuleAtomCallExeption, UnavailableRuleObjectException, UnsupportedTypeForExportException {
    org.apache.stanbol.rules.manager.atoms.UpperCaseAtom tmp = (org.apache.stanbol.rules.manager.atoms.UpperCaseAtom) ruleAtom;
    StringFunctionAtom argument = tmp.getStringFunctionAtom();
    ClerezzaSparqlObject argument1 = (ClerezzaSparqlObject) adapter.adaptTo(argument, ConstructQuery.class);
    List<Expression> argumentExpressions = new ArrayList<Expression>();
    argumentExpressions.add((Expression) argument1.getClerezzaObject());
    FunctionCall functionCall = new FunctionCall(new IRI("<http://www.w3.org/2005/xpath-functions#upper-case>"), argumentExpressions);
    return (T) new ClerezzaSparqlObject(functionCall);
}

Example 2 with Expression

use of org.apache.clerezza.rdf.core.sparql.query.Expression in project stanbol by apache.

the class LengthAtom method adapt.

@SuppressWarnings("unchecked")
@Override
public <T> T adapt(RuleAtom ruleAtom) throws RuleAtomCallExeption, UnavailableRuleObjectException, UnsupportedTypeForExportException {
    org.apache.stanbol.rules.manager.atoms.LengthAtom tmp = (org.apache.stanbol.rules.manager.atoms.LengthAtom) ruleAtom;
    StringFunctionAtom argument = tmp.getStringFunctionAtom();
    ClerezzaSparqlObject argument1 = (ClerezzaSparqlObject) adapter.adaptTo(argument, ConstructQuery.class);
    List<Expression> argumentExpressions = new ArrayList<Expression>();
    argumentExpressions.add((Expression) argument1.getClerezzaObject());
    FunctionCall functionCall = new FunctionCall(new IRI("<http://www.w3.org/2005/xpath-functions#string-length>"), argumentExpressions);
    return (T) new ClerezzaSparqlObject(functionCall);
}

Example 3 with Expression

use of org.apache.clerezza.rdf.core.sparql.query.Expression in project stanbol by apache.

the class LessEqualThanAtom method adapt.

@SuppressWarnings("unchecked")
@Override
public <T> T adapt(RuleAtom ruleAtom) throws RuleAtomCallExeption, UnavailableRuleObjectException, UnsupportedTypeForExportException {
    org.apache.stanbol.rules.manager.atoms.LessEqualThanAtom tmp = (org.apache.stanbol.rules.manager.atoms.LessEqualThanAtom) ruleAtom;
    ExpressionAtom argument1 = tmp.getArgument1();
    ExpressionAtom argument2 = tmp.getArgument2();
    ClerezzaSparqlObject clerezzaArgument1 = (ClerezzaSparqlObject) adapter.adaptTo(argument1, ConstructQuery.class);
    ClerezzaSparqlObject clerezzaArgument2 = (ClerezzaSparqlObject) adapter.adaptTo(argument2, ConstructQuery.class);
    Expression lhe = (Expression) clerezzaArgument1.getClerezzaObject();
    Expression rhe = (Expression) clerezzaArgument2.getClerezzaObject();
    return (T) new ClerezzaSparqlObject(new BinaryOperation("<=", lhe, rhe));
}

Example 4 with Expression

use of org.apache.clerezza.rdf.core.sparql.query.Expression in project stanbol by apache.

the class IsBlankAtom method adapt.

@SuppressWarnings("unchecked")
@Override
public <T> T adapt(RuleAtom ruleAtom) throws RuleAtomCallExeption, UnavailableRuleObjectException, UnsupportedTypeForExportException {
    org.apache.stanbol.rules.manager.atoms.IsBlankAtom tmp = (org.apache.stanbol.rules.manager.atoms.IsBlankAtom) ruleAtom;
    IObjectAtom uriResource = tmp.getUriResource();
    ClerezzaSparqlObject argumentCSO = (ClerezzaSparqlObject) adapter.adaptTo(uriResource, ConstructQuery.class);
    ;
    Object arg = argumentCSO.getClerezzaObject();
    Expression argumentExpression;
    if (arg instanceof Variable) {
        argumentExpression = (Variable) arg;
    } else if (arg instanceof IRI) {
        argumentExpression = new UriRefExpression((IRI) arg);
    } else {
        throw new RuleAtomCallExeption(getClass());
    }
    List<Expression> expressions = new ArrayList<Expression>();
    expressions.add(argumentExpression);
    return (T) new ClerezzaSparqlObject(new BuiltInCall("isBLANK", expressions));
}

Example 5 with Expression

use of org.apache.clerezza.rdf.core.sparql.query.Expression in project stanbol by apache.

the class LetAtom method adapt.

@SuppressWarnings("unchecked")
@Override
public <T> T adapt(RuleAtom ruleAtom) throws RuleAtomCallExeption, UnavailableRuleObjectException, UnsupportedTypeForExportException {
    org.apache.stanbol.rules.manager.atoms.LetAtom tmp = (org.apache.stanbol.rules.manager.atoms.LetAtom) ruleAtom;
    StringFunctionAtom parameterFunctionAtom = tmp.getParameterFunctionAtom();
    URIResource variableUriResource = tmp.getVariable();
    ClerezzaSparqlObject iriArgument;
    iriArgument = (ClerezzaSparqlObject) adapter.adaptTo(parameterFunctionAtom, ConstructQuery.class);
    List<Expression> iriArgumentExpressions = new ArrayList<Expression>();
    iriArgumentExpressions.add((Expression) iriArgument.getClerezzaObject());
    BuiltInCall iriBuiltInCall = new BuiltInCall("IRI", iriArgumentExpressions);
    if (variableUriResource instanceof VariableAtom) {
        String variableName = ((VariableAtom) variableUriResource).getVariableName();
        Variable variable = new Variable(variableName);
        List<Expression> bindArgumentExpressions = new ArrayList<Expression>();
        bindArgumentExpressions.add(iriBuiltInCall);
        bindArgumentExpressions.add(variable);
        BuiltInCall bindBuiltInCall = new BuiltInCall("BIND", iriArgumentExpressions);
        return (T) new ClerezzaSparqlObject(bindBuiltInCall);
    } else {
        throw new org.apache.stanbol.rules.base.api.RuleAtomCallExeption(getClass());
    }
}