Examples with Binding org.kie.dmn.model.api.Binding used on opensource projects

Example 6 with Binding

use of org.kie.dmn.model.api.Binding in project drools by kiegroup.

the class DMNEvaluatorCompiler method compileDecisionTable.

protected DMNExpressionEvaluator compileDecisionTable(DMNCompilerContext ctx, DMNModelImpl model, DMNBaseNode node, String dtName, DecisionTable dt) {
    java.util.List<DTInputClause> inputs = new ArrayList<>();
    java.util.List<DMNType> inputTypes = new ArrayList<>();
    int index = 0;
    for (InputClause ic : dt.getInput()) {
        index++;
        String inputExpressionText = ic.getInputExpression().getText();
        String inputValuesText = Optional.ofNullable(ic.getInputValues()).map(UnaryTests::getText).orElse(null);
        java.util.List<UnaryTest> inputValues = null;
        DMNType inputType = model.getTypeRegistry().unknown();
        if (inputValuesText != null) {
            inputValues = textToUnaryTestList(ctx, inputValuesText, model, ic, Msg.ERR_COMPILING_FEEL_EXPR_ON_DT_INPUT_CLAUSE_IDX, inputValuesText, node.getIdentifierString(), index);
        } else if (ic.getInputExpression().getTypeRef() != null) {
            QName inputExpressionTypeRef = ic.getInputExpression().getTypeRef();
            QName resolvedInputExpressionTypeRef = DMNCompilerImpl.getNamespaceAndName(ic.getInputExpression(), model.getImportAliasesForNS(), inputExpressionTypeRef, model.getNamespace());
            BaseDMNTypeImpl typeRef = (BaseDMNTypeImpl) model.getTypeRegistry().resolveType(resolvedInputExpressionTypeRef.getNamespaceURI(), resolvedInputExpressionTypeRef.getLocalPart());
            inputType = typeRef;
            if (inputType == null) {
                MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, dt, model, null, null, Msg.WRONG_TYPEREF_FOR_COLUMN, index, inputExpressionText, inputExpressionTypeRef);
                inputType = model.getTypeRegistry().unknown();
            } else {
                inputValues = typeRef.getAllowedValuesFEEL();
            }
        }
        CompiledExpression compiledInput = ctx.getFeelHelper().compileFeelExpression(ctx, inputExpressionText, model, dt, Msg.ERR_COMPILING_FEEL_EXPR_ON_DT_INPUT_CLAUSE_IDX, inputExpressionText, dtName, index);
        inputs.add(new DTInputClause(inputExpressionText, inputValuesText, inputValues, compiledInput, inputType.isCollection()));
        inputTypes.add(inputType);
    }
    java.util.List<DTOutputClause> outputs = new ArrayList<>();
    index = 0;
    boolean hasOutputValues = false;
    for (OutputClause oc : dt.getOutput()) {
        String outputName = oc.getName();
        if (outputName != null) {
            DMNCompilerHelper.checkVariableName(model, node.getSource(), outputName);
        }
        String id = oc.getId();
        String outputValuesText = Optional.ofNullable(oc.getOutputValues()).map(UnaryTests::getText).orElse(null);
        String defaultValue = Optional.ofNullable(oc.getDefaultOutputEntry()).map(LiteralExpression::getText).filter(t -> !t.isEmpty()).orElse(null);
        BaseDMNTypeImpl typeRef = inferTypeRef(model, dt, oc);
        java.util.List<UnaryTest> outputValues = null;
        if (outputValuesText != null) {
            outputValues = textToUnaryTestList(ctx, outputValuesText, model, oc, Msg.ERR_COMPILING_FEEL_EXPR_ON_DT_OUTPUT_CLAUSE_IDX, outputValuesText, node.getIdentifierString(), ++index);
        } else if (typeRef != model.getTypeRegistry().unknown()) {
            outputValues = typeRef.getAllowedValuesFEEL();
        }
        if (outputValues != null && !outputValues.isEmpty()) {
            hasOutputValues = true;
        }
        outputs.add(new DTOutputClause(outputName, id, outputValues, defaultValue, typeRef.getFeelType(), typeRef.isCollection()));
    }
    if (dt.getHitPolicy().equals(HitPolicy.PRIORITY) && !hasOutputValues) {
        MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, dt.getParent(), model, null, null, Msg.MISSING_OUTPUT_VALUES, dtName);
    }
    java.util.List<DTDecisionRule> rules = new ArrayList<>();
    index = 0;
    for (DecisionRule dr : dt.getRule()) {
        DTDecisionRule rule = new DTDecisionRule(index);
        for (int i = 0; i < dr.getInputEntry().size(); i++) {
            UnaryTests ut = dr.getInputEntry().get(i);
            final java.util.List<UnaryTest> tests;
            if (ut == null || ut.getText() == null || ut.getText().isEmpty()) {
                tests = Collections.emptyList();
                MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, ut, model, null, null, Msg.DTABLE_EMPTY_ENTRY, dt.getRule().indexOf(dr) + 1, dr.getInputEntry().indexOf(ut) + 1, dt.getParentDRDElement().getIdentifierString());
            } else {
                ctx.enterFrame();
                try {
                    ctx.setVariable("?", inputTypes.get(i));
                    tests = textToUnaryTestList(ctx, ut.getText(), model, dr, Msg.ERR_COMPILING_FEEL_EXPR_ON_DT_RULE_IDX, ut.getText(), node.getIdentifierString(), index + 1);
                } finally {
                    ctx.exitFrame();
                }
            }
            rule.getInputEntry().add((c, x) -> tests.stream().anyMatch(t -> {
                Boolean result = t.apply(c, x);
                return result != null && result;
            }));
        }
        for (LiteralExpression le : dr.getOutputEntry()) {
            String expressionText = le.getText();
            if (expressionText == null || expressionText.isEmpty()) {
                // addendum to DROOLS-2075 Allow empty output cell on DTs
                expressionText = "null";
            }
            CompiledExpression compiledExpression = ctx.getFeelHelper().compileFeelExpression(ctx, expressionText, model, dr, Msg.ERR_COMPILING_FEEL_EXPR_ON_DT_RULE_IDX, expressionText, dtName, index + 1);
            rule.getOutputEntry().add(compiledExpression);
        }
        rules.add(rule);
        index++;
    }
    String policy = dt.getHitPolicy().value() + (dt.getAggregation() != null ? " " + dt.getAggregation().value() : "");
    org.kie.dmn.feel.runtime.decisiontables.HitPolicy hp = org.kie.dmn.feel.runtime.decisiontables.HitPolicy.fromString(policy);
    java.util.List<String> parameterNames = getParameters(model, node, dt);
    // DROOLS-2799 DMN Optimize DT parameter binding for compilation:
    java.util.List<CompiledExpression> compiledParameterNames = new ArrayList<>();
    for (String pName : parameterNames) {
        CompiledExpression compiledExpression = ctx.getFeelHelper().compileFeelExpression(ctx, pName, model, dt, Msg.ERR_COMPILING_FEEL_EXPR_ON_DT_PARAM, pName, dtName);
        compiledParameterNames.add(compiledExpression);
    }
    // creates a FEEL instance which will be used by the invoker/impl (s)
    FEEL feelInstance = ctx.getFeelHelper().newFEELInstance();
    DecisionTableImpl dti = new DecisionTableImpl(dtName, parameterNames, inputs, outputs, rules, hp, feelInstance);
    dti.setCompiledParameterNames(compiledParameterNames);
    DTInvokerFunction dtf = new DTInvokerFunction(dti);
    DMNDTExpressionEvaluator dtee = new DMNDTExpressionEvaluator(node, feelInstance, dtf);
    return dtee;
}

Example 7 with Binding

use of org.kie.dmn.model.api.Binding in project drools by kiegroup.

the class InvocationConverter method writeChildren.

@Override
protected void writeChildren(HierarchicalStreamWriter writer, MarshallingContext context, Object parent) {
    super.writeChildren(writer, context, parent);
    Invocation i = (Invocation) parent;
    if (i.getExpression() != null)
        writeChildrenNode(writer, context, i.getExpression(), MarshallingUtils.defineExpressionNodeName(i.getExpression()));
    for (Binding b : i.getBinding()) {
        writeChildrenNode(writer, context, b, BINDING);
    }
}

Example 8 with Binding

use of org.kie.dmn.model.api.Binding in project drools by kiegroup.

the class DMNEvaluatorCompiler method compileInvocation.

private DMNExpressionEvaluator compileInvocation(DMNCompilerContext ctx, DMNModelImpl model, DMNBaseNode node, Invocation expression) {
    Invocation invocation = expression;
    // expression must be a literal text with the name of the function
    if (invocation.getExpression() == null || ((LiteralExpression) invocation.getExpression()).getText().isEmpty()) {
        MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, invocation, model, null, null, Msg.MISSING_EXPRESSION_FOR_INVOCATION, node.getIdentifierString());
        return null;
    }
    String functionName = ((LiteralExpression) invocation.getExpression()).getText();
    String[] fnameParts = functionName.split("\\.");
    Optional<DMNNode> findAsDep = Optional.empty();
    if (fnameParts.length > 1) {
        findAsDep = node.getDependencies().values().stream().filter(dmnNode -> dmnNode.getModelImportAliasFor(dmnNode.getModelNamespace(), dmnNode.getModelName()).map(alias -> Objects.equals(functionName, alias + "." + dmnNode.getName())).orElse(false)).findFirst();
    } else {
        findAsDep = node.getDependencies().values().stream().filter(d -> d.getName().equals(functionName)).findAny();
    }
    boolean findAsBuiltin = RootExecutionFrame.INSTANCE.getValue(functionName) != null;
    boolean findAsCustomFunction = ctx.getFeelHelper().newCompilerContext().getFEELFunctions().stream().anyMatch(f -> f.getName().equals(functionName));
    boolean findInContext = ctx.getVariables().get(functionName) != null;
    if (!findAsDep.isPresent() && !findAsBuiltin && !findAsCustomFunction && !findInContext) {
        MsgUtil.reportMessage(logger, DMNMessage.Severity.WARN, invocation, model, null, null, Msg.EXPRESSION_FOR_INVOCATION_NOT_RESOLVED, functionName, node.getIdentifierString(), node.getDependencies().values().stream().map(DMNNode::getName).collect(Collectors.toList()));
    }
    DMNInvocationEvaluator invEval = new DMNInvocationEvaluator(node.getName(), node.getSource(), functionName, invocation, null, ctx.getFeelHelper().newFEELInstance());
    for (Binding binding : invocation.getBinding()) {
        if (binding.getParameter() == null) {
            // error, missing binding parameter
            MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, binding, model, null, null, Msg.MISSING_PARAMETER_FOR_INVOCATION, node.getIdentifierString());
            return null;
        }
        if (binding.getExpression() == null) {
            MsgUtil.reportMessage(logger, DMNMessage.Severity.WARN, binding, model, null, null, Msg.MISSING_EXPRESSION_FOR_PARAM_OF_INVOCATION, binding.getParameter().getIdentifierString(), node.getIdentifierString());
            return null;
        }
        invEval.addParameter(binding.getParameter().getName(), compiler.resolveTypeRef(model, binding.getParameter(), binding.getParameter(), binding.getParameter().getTypeRef()), compileExpression(ctx, model, node, binding.getParameter().getName(), binding.getExpression()));
    }
    return invEval;
}

Example 9 with Binding

use of org.kie.dmn.model.api.Binding in project drools by kiegroup.

the class BindingConverter method writeChildren.

@Override
protected void writeChildren(HierarchicalStreamWriter writer, MarshallingContext context, Object parent) {
    super.writeChildren(writer, context, parent);
    Binding b = (Binding) parent;
    writeChildrenNode(writer, context, b.getParameter(), PARAMETER);
    if (b.getExpression() != null)
        writeChildrenNode(writer, context, b.getExpression(), MarshallingUtils.defineExpressionNodeName(b.getExpression()));
}

Example 10 with Binding

use of org.kie.dmn.model.api.Binding in project drools by kiegroup.

the class BindingConverter method writeChildren.

@Override
protected void writeChildren(HierarchicalStreamWriter writer, MarshallingContext context, Object parent) {
    super.writeChildren(writer, context, parent);
    Binding b = (Binding) parent;
    writeChildrenNode(writer, context, b.getParameter(), PARAMETER);
    if (b.getExpression() != null)
        writeChildrenNode(writer, context, b.getExpression(), MarshallingUtils.defineExpressionNodeName(xstream, b.getExpression()));
}