Examples with Variable io.automatiko.engine.workflow.base.core.context.variable.Variable used on opensource projects

Example 16 with Variable

use of io.automatiko.engine.workflow.base.core.context.variable.Variable in project automatiko-engine by automatiko-io.

the class ProcessVisitor method visitProcess.

public void visitProcess(WorkflowProcess process, MethodDeclaration processMethod, ProcessMetaData metadata, String workflowType) {
    BlockStmt body = new BlockStmt();
    ClassOrInterfaceType processFactoryType = new ClassOrInterfaceType(null, ExecutableProcessFactory.class.getSimpleName());
    boolean serverless = ProcessToExecModelGenerator.isServerlessWorkflow(process);
    // create local variable factory and assign new fluent process to it
    VariableDeclarationExpr factoryField = new VariableDeclarationExpr(processFactoryType, FACTORY_FIELD_NAME);
    MethodCallExpr assignFactoryMethod = new MethodCallExpr(new NameExpr(processFactoryType.getName().asString()), "createProcess");
    assignFactoryMethod.addArgument(new StringLiteralExpr(process.getId())).addArgument(new StringLiteralExpr(workflowType)).addArgument(new BooleanLiteralExpr(serverless));
    body.addStatement(new AssignExpr(factoryField, assignFactoryMethod, AssignExpr.Operator.ASSIGN));
    // item definitions
    Set<String> visitedVariables = new HashSet<>();
    VariableScope variableScope = (VariableScope) ((io.automatiko.engine.workflow.base.core.Process) process).getDefaultContext(VariableScope.VARIABLE_SCOPE);
    visitVariableScope(variableScope, body, visitedVariables);
    visitSubVariableScopes(process.getNodes(), body, visitedVariables);
    Collection<TagDefinition> tagDefinitions = ((io.automatiko.engine.workflow.process.core.WorkflowProcess) process).getTagDefinitions();
    if (tagDefinitions != null) {
        for (TagDefinition tag : tagDefinitions) {
            if (tag instanceof FunctionTagDefinition) {
                String expression = tag.getExpression();
                Matcher matcher = PatternConstants.PARAMETER_MATCHER.matcher(expression);
                if (matcher.find()) {
                    expression = matcher.group(1);
                }
                BlockStmt actionBody = new BlockStmt();
                if (serverless) {
                    MethodCallExpr evaluate = new MethodCallExpr(null, "expressionAsString").addArgument(new NameExpr("context")).addArgument(new NameExpr("exp"));
                    actionBody.addStatement(new ReturnStmt(evaluate));
                } else {
                    List<Variable> variables = variableScope.getVariables();
                    variables.stream().filter(v -> tag.getExpression().contains(v.getName())).map(ActionNodeVisitor::makeAssignment).forEach(actionBody::addStatement);
                    actionBody.addStatement(new ReturnStmt(new NameExpr(expression)));
                }
                LambdaExpr lambda = new LambdaExpr(NodeList.nodeList(new Parameter(new UnknownType(), "exp"), new Parameter(new UnknownType(), "context")), actionBody);
                body.addStatement(getFactoryMethod(FACTORY_FIELD_NAME, "tag", new StringLiteralExpr(tag.getId()), new StringLiteralExpr().setString(tag.getExpression()), lambda));
            } else {
                body.addStatement(getFactoryMethod(FACTORY_FIELD_NAME, "tag", new StringLiteralExpr(tag.getId()), new StringLiteralExpr(tag.getExpression()), new NullLiteralExpr()));
            }
        }
        if (((io.automatiko.engine.workflow.process.core.WorkflowProcess) process).getImports() != null && !((io.automatiko.engine.workflow.process.core.WorkflowProcess) process).getImports().isEmpty()) {
            NodeList<Expression> items = NodeList.nodeList(((io.automatiko.engine.workflow.process.core.WorkflowProcess) process).getImports().stream().map(s -> new StringLiteralExpr(s)).collect(Collectors.toList()));
            body.addStatement(getFactoryMethod(FACTORY_FIELD_NAME, "imports", items.toArray(Expression[]::new)));
        }
    }
    metadata.setDynamic(((io.automatiko.engine.workflow.process.core.WorkflowProcess) process).isDynamic());
    // the process itself
    body.addStatement(getFactoryMethod(FACTORY_FIELD_NAME, METHOD_NAME, new StringLiteralExpr(process.getName()))).addStatement(getFactoryMethod(FACTORY_FIELD_NAME, METHOD_PACKAGE_NAME, new StringLiteralExpr(process.getPackageName()))).addStatement(getFactoryMethod(FACTORY_FIELD_NAME, METHOD_DYNAMIC, new BooleanLiteralExpr(metadata.isDynamic()))).addStatement(getFactoryMethod(FACTORY_FIELD_NAME, METHOD_VERSION, new StringLiteralExpr(getOrDefault(process.getVersion(), DEFAULT_VERSION)))).addStatement(getFactoryMethod(FACTORY_FIELD_NAME, METHOD_VISIBILITY, new StringLiteralExpr(getOrDefault(process.getVisibility(), WorkflowProcess.PUBLIC_VISIBILITY))));
    visitMetaData(process.getMetaData(), body, FACTORY_FIELD_NAME);
    visitHeader(process, body);
    List<Node> processNodes = new ArrayList<>();
    for (io.automatiko.engine.api.definition.process.Node procNode : process.getNodes()) {
        processNodes.add((io.automatiko.engine.workflow.process.core.Node) procNode);
    }
    visitNodes(process, processNodes, body, variableScope, metadata);
    visitConnections(process.getNodes(), body);
    String timeout = (String) process.getMetaData().get("timeout");
    if (timeout != null) {
        String extraNodeIds = (String) process.getMetaData().get("timeoutNodes");
        if (extraNodeIds != null) {
            List<Expression> arguments = new ArrayList<>();
            arguments.add(new IntegerLiteralExpr(process.getNodes().length));
            arguments.add(new StringLiteralExpr(timeout));
            arguments.addAll(Stream.of(extraNodeIds.split(",")).map(s -> new LongLiteralExpr(s)).collect(Collectors.toList()));
            body.addStatement(getFactoryMethod(FACTORY_FIELD_NAME, METHOD_EXEC_TIMEOUT, arguments.toArray(Expression[]::new)));
        } else {
            body.addStatement(getFactoryMethod(FACTORY_FIELD_NAME, METHOD_EXEC_TIMEOUT, new IntegerLiteralExpr(process.getNodes().length), new StringLiteralExpr(timeout)));
        }
    }
    body.addStatement(getFactoryMethod(FACTORY_FIELD_NAME, METHOD_VALIDATE));
    MethodCallExpr getProcessMethod = new MethodCallExpr(new NameExpr(FACTORY_FIELD_NAME), "getProcess");
    body.addStatement(new ReturnStmt(getProcessMethod));
    processMethod.setBody(body);
}

Example 17 with Variable

use of io.automatiko.engine.workflow.base.core.context.variable.Variable in project automatiko-engine by automatiko-io.

the class UserTaskModelMetaData method compilationUnitOutput.

@SuppressWarnings({ "unchecked" })
private CompilationUnit compilationUnitOutput() {
    CompilationUnit compilationUnit = parse(this.getClass().getResourceAsStream("/class-templates/TaskOutputTemplate.java"));
    compilationUnit.setPackageDeclaration(packageName);
    Optional<ClassOrInterfaceDeclaration> processMethod = compilationUnit.findFirst(ClassOrInterfaceDeclaration.class, sl1 -> true);
    if (!processMethod.isPresent()) {
        throw new RuntimeException("Cannot find class declaration in the template");
    }
    ClassOrInterfaceDeclaration modelClass = processMethod.get();
    compilationUnit.addOrphanComment(new LineComment("Task output model for user task '" + humanTaskNode.getName() + "' in process '" + processId + "'"));
    addUserTaskAnnotation(modelClass);
    modelClass.setName(outputModelClassSimpleName);
    if (templateSupported) {
        modelClass.addAnnotation("io.quarkus.qute.TemplateData");
    }
    modelClass.addAnnotation(new NormalAnnotationExpr(new Name("org.eclipse.microprofile.openapi.annotations.media.Schema"), NodeList.nodeList(new MemberValuePair("name", new StringLiteralExpr(("Output model for " + humanTaskNode.getName()).replaceAll("\\s", ""))), new MemberValuePair("description", new StringLiteralExpr("Task output model for user task '" + humanTaskNode.getName() + "' in '" + processId + "'")))));
    // setup of static fromMap method body
    ClassOrInterfaceType modelType = new ClassOrInterfaceType(null, modelClass.getNameAsString());
    BlockStmt staticFromMap = new BlockStmt();
    VariableDeclarationExpr itemField = new VariableDeclarationExpr(modelType, "item");
    staticFromMap.addStatement(new AssignExpr(itemField, new ObjectCreationExpr(null, modelType, NodeList.nodeList()), AssignExpr.Operator.ASSIGN));
    NameExpr item = new NameExpr("item");
    for (Entry<String, String> entry : humanTaskNode.getOutMappings().entrySet()) {
        if (entry.getValue() == null || INTERNAL_FIELDS.contains(entry.getKey())) {
            continue;
        }
        Variable variable = Optional.ofNullable(variableScope.findVariable(entry.getValue())).orElse(processVariableScope.findVariable(entry.getValue()));
        if (variable == null) {
            // check if given mapping is an expression
            Matcher matcher = PatternConstants.PARAMETER_MATCHER.matcher(entry.getValue());
            if (matcher.find()) {
                Map<String, String> dataOutputs = (Map<String, String>) humanTaskNode.getMetaData(DATA_OUTPUTS);
                variable = new Variable();
                variable.setName(entry.getKey());
                variable.setType(new ObjectDataType(constructClass(dataOutputs.get(entry.getKey())), dataOutputs.get(entry.getKey())));
            } else {
                throw new IllegalStateException("Task " + humanTaskNode.getName() + " (output) " + entry.getKey() + " reference not existing variable " + entry.getValue());
            }
        }
        // fromMap static method body
        FieldAccessExpr field = new FieldAccessExpr(item, entry.getKey());
        ClassOrInterfaceType type = parseClassOrInterfaceType(variable.getType().getStringType());
        staticFromMap.addStatement(new AssignExpr(field, new CastExpr(type, new MethodCallExpr(new NameExpr("params"), "get").addArgument(new StringLiteralExpr(entry.getKey()))), AssignExpr.Operator.ASSIGN));
    }
    Optional<MethodDeclaration> staticFromMapMethod = modelClass.findFirst(MethodDeclaration.class, sl -> sl.getName().asString().equals("fromMap") && sl.isStatic());
    if (staticFromMapMethod.isPresent()) {
        MethodDeclaration fromMap = staticFromMapMethod.get();
        fromMap.setType(modelClass.getNameAsString());
        staticFromMap.addStatement(new ReturnStmt(new NameExpr("item")));
        fromMap.setBody(staticFromMap);
    }
    // setup of the toMap method body
    BlockStmt toMapBody = new BlockStmt();
    ClassOrInterfaceType toMap = new ClassOrInterfaceType(null, new SimpleName(Map.class.getSimpleName()), NodeList.nodeList(new ClassOrInterfaceType(null, String.class.getSimpleName()), new ClassOrInterfaceType(null, Object.class.getSimpleName())));
    VariableDeclarationExpr paramsField = new VariableDeclarationExpr(toMap, "params");
    toMapBody.addStatement(new AssignExpr(paramsField, new ObjectCreationExpr(null, new ClassOrInterfaceType(null, HashMap.class.getSimpleName()), NodeList.nodeList()), AssignExpr.Operator.ASSIGN));
    for (Entry<String, String> entry : humanTaskNode.getOutMappings().entrySet()) {
        if (entry.getValue() == null || INTERNAL_FIELDS.contains(entry.getKey())) {
            continue;
        }
        Variable variable = Optional.ofNullable(variableScope.findVariable(entry.getValue())).orElse(processVariableScope.findVariable(entry.getValue()));
        if (variable == null) {
            // check if given mapping is an expression
            Matcher matcher = PatternConstants.PARAMETER_MATCHER.matcher(entry.getValue());
            if (matcher.find()) {
                Map<String, String> dataOutputs = (Map<String, String>) humanTaskNode.getMetaData(DATA_OUTPUTS);
                variable = new Variable();
                variable.setName(entry.getKey());
                variable.setType(new ObjectDataType(constructClass(dataOutputs.get(entry.getKey())), dataOutputs.get(entry.getKey())));
            } else {
                throw new IllegalStateException("Task " + humanTaskNode.getName() + " (output) " + entry.getKey() + " reference not existing variable " + entry.getValue());
            }
        }
        FieldDeclaration fd = new FieldDeclaration().addVariable(new VariableDeclarator().setType(variable.getType().getStringType()).setName(entry.getKey())).addModifier(Modifier.Keyword.PRIVATE);
        modelClass.addMember(fd);
        addUserTaskParamAnnotation(fd, UserTaskParam.ParamType.OUTPUT);
        fd.createGetter();
        fd.createSetter();
        // toMap method body
        MethodCallExpr putVariable = new MethodCallExpr(new NameExpr("params"), "put");
        putVariable.addArgument(new StringLiteralExpr(entry.getKey()));
        putVariable.addArgument(new FieldAccessExpr(new ThisExpr(), entry.getKey()));
        toMapBody.addStatement(putVariable);
    }
    Optional<MethodDeclaration> toMapMethod = modelClass.findFirst(MethodDeclaration.class, sl -> sl.getName().asString().equals("toMap"));
    toMapBody.addStatement(new ReturnStmt(new NameExpr("params")));
    toMapMethod.ifPresent(methodDeclaration -> methodDeclaration.setBody(toMapBody));
    return compilationUnit;
}

Example 18 with Variable

use of io.automatiko.engine.workflow.base.core.context.variable.Variable in project automatiko-engine by automatiko-io.

the class CompositeContextNodeVisitor method visitVariableScope.

protected void visitVariableScope(String contextNode, VariableScope variableScope, BlockStmt body, Set<String> visitedVariables) {
    if (variableScope != null && !variableScope.getVariables().isEmpty()) {
        for (Variable variable : variableScope.getVariables()) {
            if (!visitedVariables.add(variable.getName())) {
                continue;
            }
            String tags = (String) variable.getMetaData(Variable.VARIABLE_TAGS);
            ClassOrInterfaceType variableType = new ClassOrInterfaceType(null, ObjectDataType.class.getSimpleName());
            ObjectCreationExpr variableValue = new ObjectCreationExpr(null, variableType, new NodeList<>(new ClassExpr(new ClassOrInterfaceType(null, ClassUtils.parseClassname(variable.getType().getStringType()))), new StringLiteralExpr(variable.getType().getStringType())));
            body.addStatement(getFactoryMethod(contextNode, METHOD_VARIABLE, new StringLiteralExpr(variable.getName()), variableValue, new StringLiteralExpr(Variable.VARIABLE_TAGS), (tags != null ? new StringLiteralExpr(tags) : new NullLiteralExpr())));
        }
    }
}

Example 19 with Variable

use of io.automatiko.engine.workflow.base.core.context.variable.Variable in project automatiko-engine by automatiko-io.

the class EventNodeVisitor method visitNode.

@Override
public void visitNode(WorkflowProcess process, String factoryField, EventNode node, BlockStmt body, VariableScope variableScope, ProcessMetaData metadata) {
    body.addStatement(getAssignedFactoryMethod(factoryField, EventNodeFactory.class, getNodeId(node), getNodeKey(), new LongLiteralExpr(node.getId()))).addStatement(getNameMethod(node, "Event")).addStatement(getFactoryMethod(getNodeId(node), METHOD_EVENT_TYPE, new StringLiteralExpr(node.getType())));
    Variable variable = null;
    if (node.getVariableName() != null) {
        body.addStatement(getFactoryMethod(getNodeId(node), METHOD_VARIABLE_NAME, new StringLiteralExpr(node.getVariableName())));
        variable = variableScope.findVariable(node.getVariableName());
    }
    if (EVENT_TYPE_SIGNAL.equals(node.getMetaData(EVENT_TYPE))) {
        metadata.addSignal(node.getType(), variable != null ? variable.getType().getStringType() : null, node);
    } else if (EVENT_TYPE_MESSAGE.equals(node.getMetaData(EVENT_TYPE))) {
        Map<String, Object> nodeMetaData = node.getMetaData();
        try {
            TriggerMetaData triggerMetaData = new TriggerMetaData((String) nodeMetaData.get(TRIGGER_REF), (String) nodeMetaData.get(TRIGGER_TYPE), (String) nodeMetaData.get(MESSAGE_TYPE), node.getVariableName(), String.valueOf(node.getId()), node.getName(), (String) nodeMetaData.get(TRIGGER_CORRELATION), (String) nodeMetaData.get(TRIGGER_CORRELATION_EXPR)).validate();
            triggerMetaData.addContext(node.getMetaData());
            triggerMetaData.addContext(Collections.singletonMap("_node_", node));
            metadata.addTrigger(triggerMetaData);
            addNodeMappings(process, node, body, getNodeId(node));
        } catch (IllegalArgumentException e) {
            throw new IllegalArgumentException(MessageFormat.format("Invalid parameters for event node \"{0}\": {1}", node.getName(), e.getMessage()), e);
        }
    }
    visitMetaData(node.getMetaData(), body, getNodeId(node));
    body.addStatement(getDoneMethod(getNodeId(node)));
}

Example 20 with Variable

use of io.automatiko.engine.workflow.base.core.context.variable.Variable in project automatiko-engine by automatiko-io.

the class AbstractNodeVisitor method createLambdaExpr.

protected static LambdaExpr createLambdaExpr(String consequence, VariableScope scope) {
    BlockStmt conditionBody = new BlockStmt();
    List<Variable> variables = scope.getVariables();
    variables.stream().map(ActionNodeVisitor::makeAssignment).forEach(conditionBody::addStatement);
    variables.stream().filter(v -> v.hasTag(Variable.VERSIONED_TAG)).map(ActionNodeVisitor::makeAssignmentVersions).forEach(conditionBody::addStatement);
    conditionBody.addStatement(new ReturnStmt(new EnclosedExpr(new NameExpr(consequence))));
    return new // (kcontext) ->
    LambdaExpr(// (kcontext) ->
    new Parameter(new UnknownType(), KCONTEXT_VAR), conditionBody);
}