Examples with DataTransformer org.kie.api.runtime.process.DataTransformer used on opensource projects

Example 11 with DataTransformer

use of org.kie.api.runtime.process.DataTransformer in project jbpm by kiegroup.

the class RuleSetNodeInstance method evaluateParameters.

protected Map<String, Object> evaluateParameters(RuleSetNode ruleSetNode) {
    Map<String, Object> replacements = new HashMap<String, Object>();
    for (Iterator<DataAssociation> iterator = ruleSetNode.getInAssociations().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) {
                Object parameterValue = transformer.transform(transformation.getCompiledExpression(), getSourceParameters(association));
                if (parameterValue != null) {
                    replacements.put(association.getTarget(), parameterValue);
                }
            }
        } else if (association.getAssignments() == null || association.getAssignments().isEmpty()) {
            Object parameterValue = null;
            VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VariableScope.VARIABLE_SCOPE, association.getSources().get(0));
            if (variableScopeInstance != null) {
                parameterValue = variableScopeInstance.getVariable(association.getSources().get(0));
            } else {
                try {
                    parameterValue = MVELSafeHelper.getEvaluator().eval(association.getSources().get(0), new NodeInstanceResolverFactory(this));
                } catch (Throwable t) {
                    logger.error("Could not find variable scope for variable {}", association.getSources().get(0));
                    logger.error("when trying to execute RuleSetNode {}", ruleSetNode.getName());
                    logger.error("Continuing without setting parameter.");
                }
            }
            if (parameterValue != null) {
                replacements.put(association.getTarget(), parameterValue);
            }
        }
    }
    for (Map.Entry<String, Object> entry : ruleSetNode.getParameters().entrySet()) {
        if (entry.getValue() instanceof String) {
            Object value = resolveVariable(entry.getValue());
            if (value != null) {
                replacements.put(entry.getKey(), value);
            }
        }
    }
    return replacements;
}

Example 12 with DataTransformer

use of org.kie.api.runtime.process.DataTransformer in project jbpm by kiegroup.

the class SubProcessNodeInstance method handleOutMappings.

private void handleOutMappings(ProcessInstance processInstance) {
    VariableScopeInstance subProcessVariableScopeInstance = (VariableScopeInstance) processInstance.getContextInstance(VariableScope.VARIABLE_SCOPE);
    SubProcessNode subProcessNode = getSubProcessNode();
    if (subProcessNode != null) {
        for (Iterator<org.jbpm.workflow.core.node.DataAssociation> iterator = subProcessNode.getOutAssociations().iterator(); iterator.hasNext(); ) {
            org.jbpm.workflow.core.node.DataAssociation mapping = iterator.next();
            if (mapping.getTransformation() != null) {
                Transformation transformation = mapping.getTransformation();
                DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
                if (transformer != null) {
                    Object parameterValue = transformer.transform(transformation.getCompiledExpression(), subProcessVariableScopeInstance.getVariables());
                    VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VariableScope.VARIABLE_SCOPE, mapping.getTarget());
                    if (variableScopeInstance != null && parameterValue != null) {
                        variableScopeInstance.setVariable(mapping.getTarget(), parameterValue);
                    } else {
                        logger.warn("Could not find variable scope for variable {}", mapping.getTarget());
                        logger.warn("Continuing without setting variable.");
                    }
                }
            } else {
                VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VariableScope.VARIABLE_SCOPE, mapping.getTarget());
                if (variableScopeInstance != null) {
                    Object value = subProcessVariableScopeInstance.getVariable(mapping.getSources().get(0));
                    if (value == null) {
                        try {
                            value = MVELSafeHelper.getEvaluator().eval(mapping.getSources().get(0), new VariableScopeResolverFactory(subProcessVariableScopeInstance));
                        } catch (Throwable t) {
                        // do nothing
                        }
                    }
                    variableScopeInstance.setVariable(mapping.getTarget(), value);
                } else {
                    logger.error("Could not find variable scope for variable {}", mapping.getTarget());
                    logger.error("when trying to complete SubProcess node {}", getSubProcessNode().getName());
                    logger.error("Continuing without setting variable.");
                }
            }
        }
    } else {
        // handle dynamic sub processes without data output mapping
        mapDynamicOutputData(subProcessVariableScopeInstance.getVariables());
    }
}

Example 13 with DataTransformer

use of org.kie.api.runtime.process.DataTransformer in project jbpm by kiegroup.

the class SubProcessNodeInstance method internalTrigger.

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 (!org.jbpm.workflow.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 {
                    parameterValue = MVELSafeHelper.getEvaluator().eval(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);
        if (replacements.get(paramName) == null) {
            VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VariableScope.VARIABLE_SCOPE, paramName);
            if (variableScopeInstance != null) {
                Object variableValue = variableScopeInstance.getVariable(paramName);
                String variableValueString = variableValue == null ? "" : variableValue.toString();
                replacements.put(paramName, variableValueString);
            } else {
                try {
                    Object variableValue = MVELSafeHelper.getEvaluator().eval(paramName, new NodeInstanceResolverFactory(this));
                    String variableValueString = variableValue == null ? "" : variableValue.toString();
                    replacements.put(paramName, 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());
    }
    KieBase kbase = ((ProcessInstance) getProcessInstance()).getKnowledgeRuntime().getKieBase();
    // start process instance
    Process process = kbase.getProcess(processId);
    if (process == null) {
        // try to find it by name
        String latestProcessId = StartProcessHelper.findLatestProcessByName(kbase, processId);
        if (latestProcessId != null) {
            processId = latestProcessId;
            process = kbase.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 {
        KieRuntime kruntime = ((ProcessInstance) getProcessInstance()).getKnowledgeRuntime();
        RuntimeManager manager = (RuntimeManager) kruntime.getEnvironment().get(EnvironmentName.RUNTIME_MANAGER);
        if (manager != null) {
            org.kie.api.runtime.manager.Context<?> context = ProcessInstanceIdContext.get();
            String caseId = (String) kruntime.getEnvironment().get(EnvironmentName.CASE_ID);
            if (caseId != null) {
                context = CaseContext.get(caseId);
            }
            RuntimeEngine runtime = manager.getRuntimeEngine(context);
            kruntime = (KieRuntime) runtime.getKieSession();
        }
        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()));
            CorrelationKeyFactory correlationKeyFactory = KieInternalServices.Factory.get().newCorrelationKeyFactory();
            CorrelationKey subProcessCorrelationKey = correlationKeyFactory.newCorrelationKey(businessKeys);
            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).setSignalCompletion(getSubProcessNode().isWaitForCompletion());
        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 14 with DataTransformer

use of org.kie.api.runtime.process.DataTransformer in project jbpm by kiegroup.

the class SubProcessNodeBuilder method build.

@Override
public void build(Process process, ProcessDescr processDescr, ProcessBuildContext context, Node node) {
    super.build(process, processDescr, context, node);
    WorkflowProcess wfProcess = (WorkflowProcess) process;
    Map<String, Object> parameters = new HashMap<String, Object>();
    parameters.put("imports", wfProcess.getImports());
    parameters.put("classloader", context.getConfiguration().getClassLoader());
    for (DataAssociation dataAssociation : ((SubProcessNode) node).getInAssociations()) {
        Transformation transformation = dataAssociation.getTransformation();
        if (transformation != null) {
            DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
            transformation.setCompiledExpression(transformer.compile(transformation.getExpression(), parameters));
        }
    }
    for (DataAssociation dataAssociation : ((SubProcessNode) node).getOutAssociations()) {
        Transformation transformation = dataAssociation.getTransformation();
        if (transformation != null) {
            DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
            transformation.setCompiledExpression(transformer.compile(transformation.getExpression(), parameters));
        }
    }
}

Example 15 with DataTransformer

use of org.kie.api.runtime.process.DataTransformer in project jbpm by kiegroup.

the class WorkItemNodeBuilder method build.

public void build(Process process, ProcessDescr processDescr, ProcessBuildContext context, Node node) {
    super.build(process, processDescr, context, node);
    WorkflowProcess wfProcess = (WorkflowProcess) process;
    Map<String, Object> parameters = new HashMap<String, Object>();
    parameters.put("imports", wfProcess.getImports());
    parameters.put("classloader", context.getConfiguration().getClassLoader());
    for (DataAssociation dataAssociation : ((WorkItemNode) node).getInAssociations()) {
        Transformation transformation = dataAssociation.getTransformation();
        if (transformation != null) {
            DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
            transformation.setCompiledExpression(transformer.compile(transformation.getExpression(), parameters));
        }
        List<Assignment> assignments = dataAssociation.getAssignments();
        if (assignments != null) {
            for (Assignment assignment : assignments) {
                ProcessDialect dialect = ProcessDialectRegistry.getDialect(assignment.getDialect());
                dialect.getAssignmentBuilder().build(context, assignment, dataAssociation.getSources().get(0), dataAssociation.getTarget(), ((WorkItemNode) node), true);
            }
        }
    }
    for (DataAssociation dataAssociation : ((WorkItemNode) node).getOutAssociations()) {
        Transformation transformation = dataAssociation.getTransformation();
        if (transformation != null) {
            DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
            transformation.setCompiledExpression(transformer.compile(transformation.getExpression(), parameters));
        }
        List<Assignment> assignments = dataAssociation.getAssignments();
        if (assignments != null) {
            for (Assignment assignment : assignments) {
                ProcessDialect dialect = ProcessDialectRegistry.getDialect(assignment.getDialect());
                dialect.getAssignmentBuilder().build(context, assignment, dataAssociation.getSources().get(0), dataAssociation.getTarget(), ((WorkItemNode) node), false);
            }
        }
    }
}