Examples with DataAssociation io.automatiko.engine.workflow.process.core.node.DataAssociation used on opensource projects

Example 21 with DataAssociation

use of io.automatiko.engine.workflow.process.core.node.DataAssociation in project automatiko-engine by automatiko-io.

the class SubProcessNodeInstance method internalTrigger.

@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
public void internalTrigger(final NodeInstance from, String type) {
    super.internalTrigger(from, type);
    // if node instance was cancelled, abort
    if (getNodeInstanceContainer().getNodeInstance(getId()) == null) {
        return;
    }
    if (!io.automatiko.engine.workflow.process.core.Node.CONNECTION_DEFAULT_TYPE.equals(type)) {
        throw new IllegalArgumentException("A SubProcess node only accepts default incoming connections!");
    }
    Map<String, Object> parameters = new HashMap<String, Object>();
    for (Iterator<DataAssociation> iterator = getSubProcessNode().getInAssociations().iterator(); iterator.hasNext(); ) {
        DataAssociation mapping = iterator.next();
        Object parameterValue = null;
        if (mapping.getTransformation() != null) {
            Transformation transformation = mapping.getTransformation();
            DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
            if (transformer != null) {
                parameterValue = transformer.transform(transformation.getCompiledExpression(), getSourceParameters(mapping));
            }
        } else {
            VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VariableScope.VARIABLE_SCOPE, mapping.getSources().get(0));
            if (variableScopeInstance != null) {
                parameterValue = variableScopeInstance.getVariable(mapping.getSources().get(0));
            } else {
                try {
                    ExpressionEvaluator evaluator = (ExpressionEvaluator) ((WorkflowProcess) getProcessInstance().getProcess()).getDefaultContext(ExpressionEvaluator.EXPRESSION_EVALUATOR);
                    parameterValue = evaluator.evaluate(mapping.getSources().get(0), new NodeInstanceResolverFactory(this));
                } catch (Throwable t) {
                    parameterValue = VariableUtil.resolveVariable(mapping.getSources().get(0), this);
                    if (parameterValue != null) {
                        parameters.put(mapping.getTarget(), parameterValue);
                    } else {
                        logger.error("Could not find variable scope for variable {}", mapping.getSources().get(0));
                        logger.error("when trying to execute SubProcess node {}", getSubProcessNode().getName());
                        logger.error("Continuing without setting parameter.");
                    }
                }
            }
        }
        if (parameterValue != null) {
            parameters.put(mapping.getTarget(), parameterValue);
        }
    }
    String processId = getSubProcessNode().getProcessId();
    if (processId == null) {
        // if process id is not given try with process name
        processId = getSubProcessNode().getProcessName();
    }
    // resolve processId if necessary
    Map<String, String> replacements = new HashMap<String, String>();
    Matcher matcher = PatternConstants.PARAMETER_MATCHER.matcher(processId);
    while (matcher.find()) {
        String paramName = matcher.group(1);
        String replacementKey = paramName;
        String defaultValue = "";
        if (paramName.contains(":")) {
            String[] items = paramName.split(":");
            paramName = items[0];
            defaultValue = items[1];
        }
        if (replacements.get(replacementKey) == null) {
            VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VariableScope.VARIABLE_SCOPE, paramName);
            if (variableScopeInstance != null) {
                Object variableValue = variableScopeInstance.getVariable(paramName);
                String variableValueString = variableValue == null ? defaultValue : variableValue.toString();
                replacements.put(replacementKey, variableValueString);
            } else {
                try {
                    ExpressionEvaluator evaluator = (ExpressionEvaluator) ((WorkflowProcess) getProcessInstance().getProcess()).getDefaultContext(ExpressionEvaluator.EXPRESSION_EVALUATOR);
                    Object variableValue = evaluator.evaluate(paramName, new NodeInstanceResolverFactory(this));
                    String variableValueString = variableValue == null ? defaultValue : variableValue.toString();
                    replacements.put(replacementKey, variableValueString);
                } catch (Throwable t) {
                    logger.error("Could not find variable scope for variable {}", paramName);
                    logger.error("when trying to replace variable in processId for sub process {}", getNodeName());
                    logger.error("Continuing without setting process id.");
                }
            }
        }
    }
    for (Map.Entry<String, String> replacement : replacements.entrySet()) {
        processId = processId.replace("#{" + replacement.getKey() + "}", replacement.getValue());
    }
    // start process instance
    Process process = getProcessInstance().getProcessRuntime().getProcess(processId);
    if (process == null) {
        logger.error("Could not find process {}", processId);
        logger.error("Aborting process");
        ((ProcessInstance) getProcessInstance()).setState(ProcessInstance.STATE_ABORTED);
        throw new RuntimeException("Could not find process " + processId);
    } else {
        ProcessRuntime kruntime = ((ProcessInstance) getProcessInstance()).getProcessRuntime();
        if (getSubProcessNode().getMetaData("MICollectionInput") != null) {
            // remove foreach input variable to avoid problems when running in variable
            // strict mode
            parameters.remove(getSubProcessNode().getMetaData("MICollectionInput"));
        }
        ProcessInstance processInstance = null;
        if (((WorkflowProcessInstanceImpl) getProcessInstance()).getCorrelationKey() != null) {
            // in case there is correlation key on parent instance pass it along to child so
            // it can be easily correlated
            // since correlation key must be unique for active instances it appends
            // processId and timestamp
            List<String> businessKeys = new ArrayList<String>();
            businessKeys.add(((WorkflowProcessInstanceImpl) getProcessInstance()).getCorrelationKey());
            businessKeys.add(processId);
            businessKeys.add(String.valueOf(System.currentTimeMillis()));
            CorrelationKey subProcessCorrelationKey = new StringCorrelationKey(businessKeys.stream().collect(Collectors.joining(":")));
            processInstance = (ProcessInstance) ((CorrelationAwareProcessRuntime) kruntime).createProcessInstance(processId, subProcessCorrelationKey, parameters);
        } else {
            processInstance = (ProcessInstance) kruntime.createProcessInstance(processId, parameters);
        }
        this.processInstanceId = processInstance.getId();
        ((ProcessInstanceImpl) processInstance).setMetaData("ParentProcessInstanceId", getProcessInstance().getId());
        ((ProcessInstanceImpl) processInstance).setMetaData("ParentNodeInstanceId", getUniqueId());
        ((ProcessInstanceImpl) processInstance).setMetaData("ParentNodeId", getSubProcessNode().getUniqueId());
        ((ProcessInstanceImpl) processInstance).setParentProcessInstanceId(getProcessInstance().getId());
        ((ProcessInstanceImpl) processInstance).setRootProcessInstanceId(StringUtils.isEmpty(getProcessInstance().getRootProcessInstanceId()) ? getProcessInstance().getId() : getProcessInstance().getRootProcessInstanceId());
        ((ProcessInstanceImpl) processInstance).setRootProcessId(StringUtils.isEmpty(getProcessInstance().getRootProcessId()) ? getProcessInstance().getProcessId() : getProcessInstance().getRootProcessId());
        ((ProcessInstanceImpl) processInstance).setSignalCompletion(getSubProcessNode().isWaitForCompletion());
        ((ProcessInstanceImpl) processInstance).addChild(processInstance.getProcessId(), processInstance.getId());
        kruntime.startProcessInstance(processInstance.getId());
        if (!getSubProcessNode().isWaitForCompletion()) {
            triggerCompleted();
        } else if (processInstance.getState() == ProcessInstance.STATE_COMPLETED || processInstance.getState() == ProcessInstance.STATE_ABORTED) {
            processInstanceCompleted(processInstance);
        } else {
            addProcessListener();
        }
    }
}

Example 22 with DataAssociation

use of io.automatiko.engine.workflow.process.core.node.DataAssociation in project automatiko-engine by automatiko-io.

the class RuleSetNodeInstance method processOutputs.

@SuppressWarnings({ "unchecked", "rawtypes" })
private void processOutputs(Map<String, Object> inputs, Map<String, Object> objects) {
    logger.debug("Rules evaluation results {}", objects);
    RuleSetNode ruleSetNode = getRuleSetNode();
    if (ruleSetNode != null) {
        for (Iterator<DataAssociation> iterator = ruleSetNode.getOutAssociations().iterator(); iterator.hasNext(); ) {
            DataAssociation association = iterator.next();
            if (association.getTransformation() != null) {
                Transformation transformation = association.getTransformation();
                DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
                if (transformer != null) {
                    Map<String, Object> dataSet = new HashMap<String, Object>();
                    if (getNodeInstanceContainer() instanceof CompositeContextNodeInstance) {
                        VariableScopeInstance variableScopeInstance = (VariableScopeInstance) ((CompositeContextNodeInstance) getNodeInstanceContainer()).getContextInstance(VariableScope.VARIABLE_SCOPE);
                        if (variableScopeInstance != null) {
                            dataSet.putAll(variableScopeInstance.getVariables());
                        }
                    }
                    dataSet.putAll(inputs);
                    dataSet.putAll(objects);
                    Object parameterValue = transformer.transform(transformation.getCompiledExpression(), dataSet);
                    VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VariableScope.VARIABLE_SCOPE, association.getTarget());
                    if (variableScopeInstance != null && parameterValue != null) {
                        variableScopeInstance.setVariable(this, association.getTarget(), parameterValue);
                    } else {
                        logger.warn("Could not find variable scope for variable {}", association.getTarget());
                        logger.warn("Continuing without setting variable.");
                    }
                }
            } else if (association.getAssignments() == null || association.getAssignments().isEmpty()) {
                VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VariableScope.VARIABLE_SCOPE, association.getTarget());
                if (variableScopeInstance != null) {
                    Object value = objects.get(association.getSources().get(0));
                    if (value == null) {
                        try {
                            ExpressionEvaluator evaluator = (ExpressionEvaluator) ((WorkflowProcess) getProcessInstance().getProcess()).getDefaultContext(ExpressionEvaluator.EXPRESSION_EVALUATOR);
                            value = evaluator.evaluate(association.getSources().get(0), new MapVariableResolverFactory(objects));
                        } catch (Throwable t) {
                        // do nothing
                        }
                    }
                    Variable varDef = variableScopeInstance.getVariableScope().findVariable(association.getTarget());
                    DataType dataType = varDef.getType();
                    // exclude java.lang.Object as it is considered unknown type
                    if (!dataType.getStringType().endsWith("java.lang.Object") && value instanceof String) {
                        value = dataType.readValue((String) value);
                    }
                    variableScopeInstance.setVariable(this, association.getTarget(), value);
                } else {
                    String output = association.getSources().get(0);
                    String target = association.getTarget();
                    Matcher matcher = PatternConstants.PARAMETER_MATCHER.matcher(target);
                    if (matcher.find()) {
                        String paramName = matcher.group(1);
                        String expression = VariableUtil.transformDotNotation(paramName, output);
                        NodeInstanceResolverFactory resolver = new NodeInstanceResolverFactory(this);
                        resolver.addExtraParameters(objects);
                        Serializable compiled = MVEL.compileExpression(expression);
                        MVEL.executeExpression(compiled, resolver);
                        String varName = VariableUtil.nameFromDotNotation(paramName);
                        variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VARIABLE_SCOPE, varName);
                        variableScopeInstance.setVariable(this, varName, variableScopeInstance.getVariable(varName));
                    } else {
                        logger.warn("Could not find variable scope for variable {}", association.getTarget());
                    }
                }
            }
        }
    }
}

Example 23 with DataAssociation

use of io.automatiko.engine.workflow.process.core.node.DataAssociation in project automatiko-engine by automatiko-io.

the class ServiceTaskDescriptor method completeWorkItem.

private MethodCallExpr completeWorkItem(BlockStmt executeWorkItemBody, MethodCallExpr callService) {
    Expression results = null;
    List<DataAssociation> outAssociations = workItemNode.getOutAssociations();
    if (hasReturn()) {
        VariableDeclarationExpr resultField = new VariableDeclarationExpr().addVariable(new VariableDeclarator(new ClassOrInterfaceType(null, Object.class.getCanonicalName()), "result", callService));
        executeWorkItemBody.addStatement(resultField);
        if (outAssociations.isEmpty()) {
            results = new NullLiteralExpr();
        } else {
            results = new MethodCallExpr(new NameExpr("java.util.Collections"), "singletonMap").addArgument(new StringLiteralExpr(outAssociations.get(0).getSources().isEmpty() ? "workflowdata" : outAssociations.get(0).getSources().get(0))).addArgument(new NameExpr("result"));
        }
    } else if (outAssociations.isEmpty()) {
        executeWorkItemBody.addStatement(callService);
        results = new NullLiteralExpr();
    } else {
        VariableDeclarationExpr resultField = new VariableDeclarationExpr().addVariable(new VariableDeclarator(new ClassOrInterfaceType(null, Object.class.getCanonicalName()), "result", callService));
        executeWorkItemBody.addStatement(resultField);
        results = new MethodCallExpr(new NameExpr("java.util.Collections"), "singletonMap").addArgument(new StringLiteralExpr(outAssociations.get(0).getSources().isEmpty() ? "workflowdata" : outAssociations.get(0).getSources().get(0))).addArgument(new NameExpr("result"));
    }
    MethodCallExpr completeWorkItem = new MethodCallExpr(new NameExpr("workItemManager"), "completeWorkItem").addArgument(new MethodCallExpr(new NameExpr("workItem"), "getId")).addArgument(results);
    return completeWorkItem;
}

Example 24 with DataAssociation

use of io.automatiko.engine.workflow.process.core.node.DataAssociation in project automatiko-engine by automatiko-io.

the class StartNodeVisitor method visitNode.

@Override
public void visitNode(WorkflowProcess process, String factoryField, StartNode node, BlockStmt body, VariableScope variableScope, ProcessMetaData metadata) {
    body.addStatement(getAssignedFactoryMethod(factoryField, StartNodeFactory.class, getNodeId(node), getNodeKey(), new LongLiteralExpr(node.getId()))).addStatement(getNameMethod(node, "Start")).addStatement(getFactoryMethod(getNodeId(node), METHOD_INTERRUPTING, new BooleanLiteralExpr(node.isInterrupting())));
    visitMetaData(node.getMetaData(), body, getNodeId(node));
    boolean serverless = ProcessToExecModelGenerator.isServerlessWorkflow(process);
    if (serverless) {
        for (DataAssociation association : node.getOutAssociations()) {
            if (association.getAssignments() != null && !association.getAssignments().isEmpty()) {
                TaskOutputJqAssignmentAction action = (TaskOutputJqAssignmentAction) association.getAssignments().get(0).getMetaData("Action");
                String outputFilter = action.getOutputFilterExpression();
                String scopeFilter = action.getScopeFilter();
                body.addStatement(getFactoryMethod(getNodeId(node), METHOD_OUT_JQ_MAPPING, (outputFilter != null ? new StringLiteralExpr().setString(outputFilter) : new NullLiteralExpr()), (scopeFilter != null ? new StringLiteralExpr().setString(scopeFilter) : new NullLiteralExpr()), new BooleanLiteralExpr(action.isIgnoreScopeFilter())));
            }
        }
    } else {
        for (DataAssociation entry : node.getOutAssociations()) {
            if (entry.getAssignments() != null && !entry.getAssignments().isEmpty()) {
                Assignment assignment = entry.getAssignments().get(0);
                body.addStatement(getFactoryMethod(getNodeId(node), "outMapping", new StringLiteralExpr(entry.getSources().get(0)), new NullLiteralExpr(), new StringLiteralExpr(assignment.getDialect()), new StringLiteralExpr(assignment.getFrom()), new StringLiteralExpr(assignment.getTo())));
            } else {
                body.addStatement(getFactoryMethod(getNodeId(node), "outMapping", new StringLiteralExpr(entry.getSources().get(0)), new StringLiteralExpr(entry.getTarget()), new NullLiteralExpr(), new NullLiteralExpr(), new NullLiteralExpr()));
            }
        }
    }
    body.addStatement(getDoneMethod(getNodeId(node)));
    if (node.getTimer() != null) {
        Timer timer = node.getTimer();
        body.addStatement(getFactoryMethod(getNodeId(node), METHOD_TIMER, getOrNullExpr(timer.getDelay()), getOrNullExpr(timer.getPeriod()), getOrNullExpr(timer.getDate()), new IntegerLiteralExpr(node.getTimer().getTimeType())));
    } else if (node.getTriggers() != null && !node.getTriggers().isEmpty()) {
        Map<String, Object> nodeMetaData = node.getMetaData();
        TriggerMetaData trigger = new TriggerMetaData((String) nodeMetaData.get(TRIGGER_REF), (String) nodeMetaData.get(TRIGGER_TYPE), (String) nodeMetaData.get(MESSAGE_TYPE), (String) nodeMetaData.get(TRIGGER_MAPPING), String.valueOf(node.getId()), node.getName(), (String) nodeMetaData.get(TRIGGER_CORRELATION), (String) nodeMetaData.get(TRIGGER_CORRELATION_EXPR)).validate();
        trigger.addContext(node.getMetaData());
        trigger.addContext(Collections.singletonMap("_node_", node));
        // mark the trigger as capable of starting new instance only if this is top level start node
        if (node.getParentContainer() instanceof WorkflowProcess) {
            trigger.setStart(true);
        }
        metadata.addTrigger(trigger);
        handleTrigger(node, nodeMetaData, body, variableScope, metadata);
    } else {
        // since there is start node without trigger then make sure it is startable
        metadata.setStartable(true);
    }
}

Example 25 with DataAssociation

use of io.automatiko.engine.workflow.process.core.node.DataAssociation in project automatiko-engine by automatiko-io.

the class ScriptTaskHandler method readDataInputAssociation.

protected void readDataInputAssociation(org.w3c.dom.Node xmlNode, ActionNode actionNode, Map<String, String> dataInputs) {
    // sourceRef
    org.w3c.dom.Node subNode = xmlNode.getFirstChild();
    if ("sourceRef".equals(subNode.getNodeName())) {
        List<String> sources = new ArrayList<>();
        sources.add(subNode.getTextContent());
        subNode = subNode.getNextSibling();
        while ("sourceRef".equals(subNode.getNodeName())) {
            sources.add(subNode.getTextContent());
            subNode = subNode.getNextSibling();
        }
        // targetRef
        String target = subNode.getTextContent();
        // transformation
        Transformation transformation = null;
        subNode = subNode.getNextSibling();
        if (subNode != null && "transformation".equals(subNode.getNodeName())) {
            String lang = subNode.getAttributes().getNamedItem("language").getNodeValue();
            String expression = subNode.getTextContent();
            DataTransformer transformer = transformerRegistry.find(lang);
            if (transformer == null) {
                throw new IllegalArgumentException("No transformer registered for language " + lang);
            }
            transformation = new Transformation(lang, expression);
            subNode = subNode.getNextSibling();
        }
        // assignments
        List<Assignment> assignments = new LinkedList<Assignment>();
        while (subNode != null) {
            String expressionLang = ((Element) subNode).getAttribute("expressionLanguage");
            if (expressionLang == null || expressionLang.trim().isEmpty()) {
                expressionLang = "XPath";
            }
            org.w3c.dom.Node ssubNode = subNode.getFirstChild();
            String from = ssubNode.getTextContent();
            String to = ssubNode.getNextSibling().getTextContent();
            assignments.add(new Assignment(expressionLang, from, to));
            subNode = subNode.getNextSibling();
        }
        actionNode.addInAssociation(new DataAssociation(sources, dataInputs.get(target), assignments, transformation));
    }
}