Examples with ForEachNodeInstance org.jbpm.workflow.instance.node.ForEachNodeInstance used on opensource projects

Example 1 with ForEachNodeInstance

use of org.jbpm.workflow.instance.node.ForEachNodeInstance in project jbpm by kiegroup.

the class FlowTest method testMultiInstanceLoopCharacteristicsProcessWithORGateway.

@Test
public void testMultiInstanceLoopCharacteristicsProcessWithORGateway() throws Exception {
    KieBase kbase = createKnowledgeBaseWithoutDumper("BPMN2-MultiInstanceLoopCharacteristicsProcessWithORgateway.bpmn2");
    ksession = createKnowledgeSession(kbase);
    TestWorkItemHandler workItemHandler = new TestWorkItemHandler();
    ksession.getWorkItemManager().registerWorkItemHandler("Human Task", workItemHandler);
    Map<String, Object> params = new HashMap<String, Object>();
    List<Integer> myList = new ArrayList<Integer>();
    myList.add(12);
    myList.add(15);
    params.put("list", myList);
    ProcessInstance processInstance = ksession.startProcess("MultiInstanceLoopCharacteristicsProcess", params);
    List<WorkItem> workItems = workItemHandler.getWorkItems();
    assertEquals(4, workItems.size());
    Collection<NodeInstance> nodeInstances = ((WorkflowProcessInstanceImpl) processInstance).getNodeInstances();
    assertEquals(1, nodeInstances.size());
    NodeInstance nodeInstance = nodeInstances.iterator().next();
    assertTrue(nodeInstance instanceof ForEachNodeInstance);
    Collection<NodeInstance> nodeInstancesChild = ((ForEachNodeInstance) nodeInstance).getNodeInstances();
    assertEquals(2, nodeInstancesChild.size());
    for (NodeInstance child : nodeInstancesChild) {
        assertTrue(child instanceof CompositeContextNodeInstance);
        assertEquals(2, ((CompositeContextNodeInstance) child).getNodeInstances().size());
    }
    ksession.getWorkItemManager().completeWorkItem(workItems.get(0).getId(), null);
    ksession.getWorkItemManager().completeWorkItem(workItems.get(1).getId(), null);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    nodeInstances = ((WorkflowProcessInstanceImpl) processInstance).getNodeInstances();
    assertEquals(1, nodeInstances.size());
    nodeInstance = nodeInstances.iterator().next();
    assertTrue(nodeInstance instanceof ForEachNodeInstance);
    if (isPersistence()) {
        // when persistence is used there is slightly different behaviour of ContextNodeInstance
        // it's already tested by SimplePersistenceBPMNProcessTest.testMultiInstanceLoopCharacteristicsProcessWithORGateway
        nodeInstancesChild = ((ForEachNodeInstance) nodeInstance).getNodeInstances();
        assertEquals(1, nodeInstancesChild.size());
        Iterator<NodeInstance> childIterator = nodeInstancesChild.iterator();
        assertTrue(childIterator.next() instanceof CompositeContextNodeInstance);
        ksession.getWorkItemManager().completeWorkItem(workItems.get(2).getId(), null);
        ksession.getWorkItemManager().completeWorkItem(workItems.get(3).getId(), null);
        assertProcessInstanceFinished(processInstance, ksession);
    } else {
        nodeInstancesChild = ((ForEachNodeInstance) nodeInstance).getNodeInstances();
        assertEquals(2, nodeInstancesChild.size());
        Iterator<NodeInstance> childIterator = nodeInstancesChild.iterator();
        assertTrue(childIterator.next() instanceof CompositeContextNodeInstance);
        assertTrue(childIterator.next() instanceof ForEachJoinNodeInstance);
        ksession.getWorkItemManager().completeWorkItem(workItems.get(2).getId(), null);
        ksession.getWorkItemManager().completeWorkItem(workItems.get(3).getId(), null);
        assertProcessInstanceFinished(processInstance, ksession);
    }
}

Example 2 with ForEachNodeInstance

use of org.jbpm.workflow.instance.node.ForEachNodeInstance in project jbpm by kiegroup.

the class AbstractProtobufProcessInstanceMarshaller method readNodeInstance.

public NodeInstance readNodeInstance(MarshallerReaderContext context, NodeInstanceContainer nodeInstanceContainer, WorkflowProcessInstance processInstance) throws IOException {
    JBPMMessages.ProcessInstance.NodeInstance _node = (JBPMMessages.ProcessInstance.NodeInstance) context.parameterObject;
    NodeInstanceImpl nodeInstance = readNodeInstanceContent(_node, context, processInstance);
    nodeInstance.setNodeId(_node.getNodeId());
    nodeInstance.setId(_node.getId());
    nodeInstance.setNodeInstanceContainer(nodeInstanceContainer);
    nodeInstance.setProcessInstance((org.jbpm.workflow.instance.WorkflowProcessInstance) processInstance);
    nodeInstance.setLevel(_node.getLevel() == 0 ? 1 : _node.getLevel());
    nodeInstance.internalSetSlaCompliance(_node.getSlaCompliance());
    if (_node.getSlaDueDate() > 0) {
        nodeInstance.internalSetSlaDueDate(new Date(_node.getSlaDueDate()));
    }
    nodeInstance.internalSetSlaTimerId(_node.getSlaTimerId());
    switch(_node.getContent().getType()) {
        case COMPOSITE_CONTEXT_NODE:
        case DYNAMIC_NODE:
            if (_node.getContent().getComposite().getVariableCount() > 0) {
                Context variableScope = ((org.jbpm.process.core.Process) ((org.jbpm.process.instance.ProcessInstance) processInstance).getProcess()).getDefaultContext(VariableScope.VARIABLE_SCOPE);
                VariableScopeInstance variableScopeInstance = (VariableScopeInstance) ((CompositeContextNodeInstance) nodeInstance).getContextInstance(variableScope);
                for (JBPMMessages.Variable _variable : _node.getContent().getComposite().getVariableList()) {
                    try {
                        Object _value = ProtobufProcessMarshaller.unmarshallVariableValue(context, _variable);
                        variableScopeInstance.internalSetVariable(_variable.getName(), _value);
                    } catch (ClassNotFoundException e) {
                        throw new IllegalArgumentException("Could not reload variable " + _variable.getName());
                    }
                }
            }
            if (_node.getContent().getComposite().getIterationLevelsCount() > 0) {
                for (JBPMMessages.IterationLevel _level : _node.getContent().getComposite().getIterationLevelsList()) {
                    ((CompositeContextNodeInstance) nodeInstance).getIterationLevels().put(_level.getId(), _level.getLevel());
                }
            }
            for (JBPMMessages.ProcessInstance.NodeInstance _instance : _node.getContent().getComposite().getNodeInstanceList()) {
                context.parameterObject = _instance;
                readNodeInstance(context, (CompositeContextNodeInstance) nodeInstance, processInstance);
            }
            for (JBPMMessages.ProcessInstance.ExclusiveGroupInstance _excl : _node.getContent().getComposite().getExclusiveGroupList()) {
                ExclusiveGroupInstance exclusiveGroupInstance = new ExclusiveGroupInstance();
                ((CompositeContextNodeInstance) nodeInstance).addContextInstance(ExclusiveGroup.EXCLUSIVE_GROUP, exclusiveGroupInstance);
                for (Long nodeInstanceId : _excl.getGroupNodeInstanceIdList()) {
                    NodeInstance groupNodeInstance = ((org.jbpm.workflow.instance.NodeInstanceContainer) processInstance).getNodeInstance(nodeInstanceId, true);
                    if (groupNodeInstance == null) {
                        throw new IllegalArgumentException("Could not find node instance when deserializing exclusive group instance: " + nodeInstanceId);
                    }
                    exclusiveGroupInstance.addNodeInstance(groupNodeInstance);
                }
            }
            break;
        case FOR_EACH_NODE:
            for (JBPMMessages.ProcessInstance.NodeInstance _instance : _node.getContent().getForEach().getNodeInstanceList()) {
                context.parameterObject = _instance;
                readNodeInstance(context, (ForEachNodeInstance) nodeInstance, processInstance);
                VariableScopeInstance variableScopeInstance = (VariableScopeInstance) ((ForEachNodeInstance) nodeInstance).getContextInstance(VariableScope.VARIABLE_SCOPE);
                for (JBPMMessages.Variable _variable : _node.getContent().getForEach().getVariableList()) {
                    try {
                        Object _value = ProtobufProcessMarshaller.unmarshallVariableValue(context, _variable);
                        variableScopeInstance.internalSetVariable(_variable.getName(), _value);
                    } catch (ClassNotFoundException e) {
                        throw new IllegalArgumentException("Could not reload variable " + _variable.getName());
                    }
                }
                if (_node.getContent().getForEach().getIterationLevelsCount() > 0) {
                    for (JBPMMessages.IterationLevel _level : _node.getContent().getForEach().getIterationLevelsList()) {
                        ((ForEachNodeInstance) nodeInstance).getIterationLevels().put(_level.getId(), _level.getLevel());
                    }
                }
            }
            break;
        case EVENT_SUBPROCESS_NODE:
            for (JBPMMessages.ProcessInstance.NodeInstance _instance : _node.getContent().getComposite().getNodeInstanceList()) {
                context.parameterObject = _instance;
                readNodeInstance(context, (EventSubProcessNodeInstance) nodeInstance, processInstance);
                VariableScopeInstance variableScopeInstance = (VariableScopeInstance) ((EventSubProcessNodeInstance) nodeInstance).getContextInstance(VariableScope.VARIABLE_SCOPE);
                for (JBPMMessages.Variable _variable : _node.getContent().getComposite().getVariableList()) {
                    try {
                        Object _value = ProtobufProcessMarshaller.unmarshallVariableValue(context, _variable);
                        variableScopeInstance.internalSetVariable(_variable.getName(), _value);
                    } catch (ClassNotFoundException e) {
                        throw new IllegalArgumentException("Could not reload variable " + _variable.getName());
                    }
                }
            }
            break;
        default:
    }
    return nodeInstance;
}

Example 3 with ForEachNodeInstance

use of org.jbpm.workflow.instance.node.ForEachNodeInstance in project jbpm by kiegroup.

the class AbstractProtobufProcessInstanceMarshaller method readNodeInstanceContent.

protected NodeInstanceImpl readNodeInstanceContent(JBPMMessages.ProcessInstance.NodeInstance _node, MarshallerReaderContext context, WorkflowProcessInstance processInstance) throws IOException {
    NodeInstanceImpl nodeInstance = null;
    NodeInstanceContent _content = _node.getContent();
    switch(_content.getType()) {
        case RULE_SET_NODE:
            nodeInstance = new RuleSetNodeInstance();
            ((RuleSetNodeInstance) nodeInstance).setRuleFlowGroup(_content.getRuleSet().getRuleFlowGroup());
            if (_content.getRuleSet().getTimerInstanceIdCount() > 0) {
                List<Long> timerInstances = new ArrayList<Long>();
                for (Long _timerId : _content.getRuleSet().getTimerInstanceIdList()) {
                    timerInstances.add(_timerId);
                }
                ((RuleSetNodeInstance) nodeInstance).internalSetTimerInstances(timerInstances);
            }
            if (_content.getRuleSet().getMapEntryCount() > 0) {
                Map<String, FactHandle> factInfo = new HashMap<String, FactHandle>();
                for (TextMapEntry entry : _content.getRuleSet().getMapEntryList()) {
                    factInfo.put(entry.getName(), DefaultFactHandle.createFromExternalFormat(entry.getValue()));
                }
                ((RuleSetNodeInstance) nodeInstance).setFactHandles(factInfo);
            }
            break;
        case HUMAN_TASK_NODE:
            nodeInstance = new HumanTaskNodeInstance();
            ((HumanTaskNodeInstance) nodeInstance).internalSetWorkItemId(_content.getHumanTask().getWorkItemId());
            if (_content.getHumanTask().getTimerInstanceIdCount() > 0) {
                List<Long> timerInstances = new ArrayList<Long>();
                for (Long _timerId : _content.getHumanTask().getTimerInstanceIdList()) {
                    timerInstances.add(_timerId);
                }
                ((HumanTaskNodeInstance) nodeInstance).internalSetTimerInstances(timerInstances);
            }
            break;
        case WORK_ITEM_NODE:
            nodeInstance = new WorkItemNodeInstance();
            ((WorkItemNodeInstance) nodeInstance).internalSetWorkItemId(_content.getWorkItem().getWorkItemId());
            if (_content.getWorkItem().getTimerInstanceIdCount() > 0) {
                List<Long> timerInstances = new ArrayList<Long>();
                for (Long _timerId : _content.getWorkItem().getTimerInstanceIdList()) {
                    timerInstances.add(_timerId);
                }
                ((WorkItemNodeInstance) nodeInstance).internalSetTimerInstances(timerInstances);
            }
            break;
        case SUBPROCESS_NODE:
            nodeInstance = new SubProcessNodeInstance();
            ((SubProcessNodeInstance) nodeInstance).internalSetProcessInstanceId(_content.getSubProcess().getProcessInstanceId());
            if (_content.getSubProcess().getTimerInstanceIdCount() > 0) {
                List<Long> timerInstances = new ArrayList<Long>();
                for (Long _timerId : _content.getSubProcess().getTimerInstanceIdList()) {
                    timerInstances.add(_timerId);
                }
                ((SubProcessNodeInstance) nodeInstance).internalSetTimerInstances(timerInstances);
            }
            break;
        case MILESTONE_NODE:
            nodeInstance = new MilestoneNodeInstance();
            if (_content.getMilestone().getTimerInstanceIdCount() > 0) {
                List<Long> timerInstances = new ArrayList<Long>();
                for (Long _timerId : _content.getMilestone().getTimerInstanceIdList()) {
                    timerInstances.add(_timerId);
                }
                ((MilestoneNodeInstance) nodeInstance).internalSetTimerInstances(timerInstances);
            }
            break;
        case TIMER_NODE:
            nodeInstance = new TimerNodeInstance();
            ((TimerNodeInstance) nodeInstance).internalSetTimerId(_content.getTimer().getTimerId());
            break;
        case ASYNC_EVENT_NODE:
            nodeInstance = new AsyncEventNodeInstance();
            ((AsyncEventNodeInstance) nodeInstance).setEventType(_content.getAsyncEvent().getEventType());
            break;
        case EVENT_NODE:
            nodeInstance = new EventNodeInstance();
            break;
        case JOIN_NODE:
            nodeInstance = new JoinInstance();
            if (_content.getJoin().getTriggerCount() > 0) {
                Map<Long, Integer> triggers = new HashMap<Long, Integer>();
                for (JBPMMessages.ProcessInstance.NodeInstanceContent.JoinNode.JoinTrigger _join : _content.getJoin().getTriggerList()) {
                    triggers.put(_join.getNodeId(), _join.getCounter());
                }
                ((JoinInstance) nodeInstance).internalSetTriggers(triggers);
            }
            break;
        case FOR_EACH_NODE:
            nodeInstance = new ForEachNodeInstance();
            break;
        case COMPOSITE_CONTEXT_NODE:
            nodeInstance = new CompositeContextNodeInstance();
            if (_content.getComposite().getTimerInstanceIdCount() > 0) {
                List<Long> timerInstances = new ArrayList<Long>();
                for (Long _timerId : _content.getComposite().getTimerInstanceIdList()) {
                    timerInstances.add(_timerId);
                }
                ((CompositeContextNodeInstance) nodeInstance).internalSetTimerInstances(timerInstances);
            }
            break;
        case DYNAMIC_NODE:
            nodeInstance = new DynamicNodeInstance();
            if (_content.getComposite().getTimerInstanceIdCount() > 0) {
                List<Long> timerInstances = new ArrayList<Long>();
                for (Long _timerId : _content.getComposite().getTimerInstanceIdList()) {
                    timerInstances.add(_timerId);
                }
                ((CompositeContextNodeInstance) nodeInstance).internalSetTimerInstances(timerInstances);
            }
            break;
        case STATE_NODE:
            nodeInstance = new StateNodeInstance();
            if (_content.getState().getTimerInstanceIdCount() > 0) {
                List<Long> timerInstances = new ArrayList<Long>();
                for (Long _timerId : _content.getState().getTimerInstanceIdList()) {
                    timerInstances.add(_timerId);
                }
                ((CompositeContextNodeInstance) nodeInstance).internalSetTimerInstances(timerInstances);
            }
            break;
        case EVENT_SUBPROCESS_NODE:
            nodeInstance = new EventSubProcessNodeInstance();
            if (_content.getComposite().getTimerInstanceIdCount() > 0) {
                List<Long> timerInstances = new ArrayList<Long>();
                for (Long _timerId : _content.getComposite().getTimerInstanceIdList()) {
                    timerInstances.add(_timerId);
                }
                ((CompositeContextNodeInstance) nodeInstance).internalSetTimerInstances(timerInstances);
            }
            break;
        default:
            throw new IllegalArgumentException("Unknown node type: " + _content.getType());
    }
    return nodeInstance;
}

Example 4 with ForEachNodeInstance

use of org.jbpm.workflow.instance.node.ForEachNodeInstance in project jbpm by kiegroup.

the class AbstractProtobufProcessInstanceMarshaller method writeNodeInstanceContent.

protected JBPMMessages.ProcessInstance.NodeInstanceContent writeNodeInstanceContent(JBPMMessages.ProcessInstance.NodeInstance.Builder _node, NodeInstance nodeInstance, MarshallerWriteContext context) throws IOException {
    JBPMMessages.ProcessInstance.NodeInstanceContent.Builder _content = null;
    if (nodeInstance instanceof RuleSetNodeInstance) {
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(NodeInstanceType.RULE_SET_NODE);
        List<Long> timerInstances = ((RuleSetNodeInstance) nodeInstance).getTimerInstances();
        JBPMMessages.ProcessInstance.NodeInstanceContent.RuleSetNode.Builder _ruleSet = JBPMMessages.ProcessInstance.NodeInstanceContent.RuleSetNode.newBuilder();
        _ruleSet.setRuleFlowGroup(((RuleSetNodeInstance) nodeInstance).getRuleFlowGroup());
        if (timerInstances != null) {
            for (Long id : timerInstances) {
                _ruleSet.addTimerInstanceId(id);
            }
        }
        Map<String, FactHandle> facts = ((RuleSetNodeInstance) nodeInstance).getFactHandles();
        if (facts != null && facts.size() > 0) {
            for (Map.Entry<String, FactHandle> entry : facts.entrySet()) {
                JBPMMessages.ProcessInstance.NodeInstanceContent.RuleSetNode.TextMapEntry.Builder _textMapEntry = JBPMMessages.ProcessInstance.NodeInstanceContent.RuleSetNode.TextMapEntry.newBuilder();
                _textMapEntry.setName(entry.getKey());
                _textMapEntry.setValue(entry.getValue().toExternalForm());
                _ruleSet.addMapEntry(_textMapEntry.build());
            }
        }
        _content.setRuleSet(_ruleSet.build());
    } else if (nodeInstance instanceof HumanTaskNodeInstance) {
        JBPMMessages.ProcessInstance.NodeInstanceContent.HumanTaskNode.Builder _task = JBPMMessages.ProcessInstance.NodeInstanceContent.HumanTaskNode.newBuilder().setWorkItemId(((HumanTaskNodeInstance) nodeInstance).getWorkItemId());
        List<Long> timerInstances = ((HumanTaskNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            for (Long id : timerInstances) {
                _task.addTimerInstanceId(id);
            }
        }
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(NodeInstanceType.HUMAN_TASK_NODE).setHumanTask(_task.build());
    } else if (nodeInstance instanceof WorkItemNodeInstance) {
        JBPMMessages.ProcessInstance.NodeInstanceContent.WorkItemNode.Builder _wi = JBPMMessages.ProcessInstance.NodeInstanceContent.WorkItemNode.newBuilder().setWorkItemId(((WorkItemNodeInstance) nodeInstance).getWorkItemId());
        List<Long> timerInstances = ((WorkItemNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            for (Long id : timerInstances) {
                _wi.addTimerInstanceId(id);
            }
        }
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(NodeInstanceType.WORK_ITEM_NODE).setWorkItem(_wi.build());
    } else if (nodeInstance instanceof SubProcessNodeInstance) {
        JBPMMessages.ProcessInstance.NodeInstanceContent.SubProcessNode.Builder _sp = JBPMMessages.ProcessInstance.NodeInstanceContent.SubProcessNode.newBuilder().setProcessInstanceId(((SubProcessNodeInstance) nodeInstance).getProcessInstanceId());
        List<Long> timerInstances = ((SubProcessNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            for (Long id : timerInstances) {
                _sp.addTimerInstanceId(id);
            }
        }
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(NodeInstanceType.SUBPROCESS_NODE).setSubProcess(_sp.build());
    } else if (nodeInstance instanceof MilestoneNodeInstance) {
        JBPMMessages.ProcessInstance.NodeInstanceContent.MilestoneNode.Builder _ms = JBPMMessages.ProcessInstance.NodeInstanceContent.MilestoneNode.newBuilder();
        List<Long> timerInstances = ((MilestoneNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            for (Long id : timerInstances) {
                _ms.addTimerInstanceId(id);
            }
        }
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(NodeInstanceType.MILESTONE_NODE).setMilestone(_ms.build());
    } else if (nodeInstance instanceof AsyncEventNodeInstance) {
        JBPMMessages.ProcessInstance.NodeInstanceContent.AsyncEventNode.Builder _asyncEvent = JBPMMessages.ProcessInstance.NodeInstanceContent.AsyncEventNode.newBuilder();
        _asyncEvent.setEventType(((AsyncEventNodeInstance) nodeInstance).getEventType());
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(NodeInstanceType.ASYNC_EVENT_NODE).setAsyncEvent(_asyncEvent.build());
    } else if (nodeInstance instanceof EventNodeInstance) {
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(NodeInstanceType.EVENT_NODE);
    } else if (nodeInstance instanceof TimerNodeInstance) {
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(NodeInstanceType.TIMER_NODE).setTimer(JBPMMessages.ProcessInstance.NodeInstanceContent.TimerNode.newBuilder().setTimerId(((TimerNodeInstance) nodeInstance).getTimerId()).build());
    } else if (nodeInstance instanceof JoinInstance) {
        JBPMMessages.ProcessInstance.NodeInstanceContent.JoinNode.Builder _join = JBPMMessages.ProcessInstance.NodeInstanceContent.JoinNode.newBuilder();
        Map<Long, Integer> triggers = ((JoinInstance) nodeInstance).getTriggers();
        List<Long> keys = new ArrayList<Long>(triggers.keySet());
        Collections.sort(keys, new Comparator<Long>() {

            public int compare(Long o1, Long o2) {
                return o1.compareTo(o2);
            }
        });
        for (Long key : keys) {
            _join.addTrigger(JBPMMessages.ProcessInstance.NodeInstanceContent.JoinNode.JoinTrigger.newBuilder().setNodeId(key).setCounter(triggers.get(key)).build());
        }
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(NodeInstanceType.JOIN_NODE).setJoin(_join.build());
    } else if (nodeInstance instanceof StateNodeInstance) {
        JBPMMessages.ProcessInstance.NodeInstanceContent.StateNode.Builder _state = JBPMMessages.ProcessInstance.NodeInstanceContent.StateNode.newBuilder();
        List<Long> timerInstances = ((StateNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            for (Long id : timerInstances) {
                _state.addTimerInstanceId(id);
            }
        }
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(NodeInstanceType.STATE_NODE).setState(_state.build());
    } else if (nodeInstance instanceof ForEachNodeInstance) {
        JBPMMessages.ProcessInstance.NodeInstanceContent.ForEachNode.Builder _foreach = JBPMMessages.ProcessInstance.NodeInstanceContent.ForEachNode.newBuilder();
        ForEachNodeInstance forEachNodeInstance = (ForEachNodeInstance) nodeInstance;
        List<NodeInstance> nodeInstances = new ArrayList<NodeInstance>(forEachNodeInstance.getNodeInstances());
        Collections.sort(nodeInstances, new Comparator<NodeInstance>() {

            public int compare(NodeInstance o1, NodeInstance o2) {
                return (int) (o1.getId() - o2.getId());
            }
        });
        for (NodeInstance subNodeInstance : nodeInstances) {
            if (subNodeInstance instanceof CompositeContextNodeInstance) {
                _foreach.addNodeInstance(writeNodeInstance(context, subNodeInstance));
            }
        }
        VariableScopeInstance variableScopeInstance = (VariableScopeInstance) forEachNodeInstance.getContextInstance(VariableScope.VARIABLE_SCOPE);
        if (variableScopeInstance != null) {
            List<Map.Entry<String, Object>> variables = new ArrayList<Map.Entry<String, Object>>(variableScopeInstance.getVariables().entrySet());
            Collections.sort(variables, new Comparator<Map.Entry<String, Object>>() {

                public int compare(Map.Entry<String, Object> o1, Map.Entry<String, Object> o2) {
                    return o1.getKey().compareTo(o2.getKey());
                }
            });
            for (Map.Entry<String, Object> variable : variables) {
                _foreach.addVariable(ProtobufProcessMarshaller.marshallVariable(context, variable.getKey(), variable.getValue()));
            }
        }
        List<Map.Entry<String, Integer>> iterationlevels = new ArrayList<Map.Entry<String, Integer>>(forEachNodeInstance.getIterationLevels().entrySet());
        Collections.sort(iterationlevels, new Comparator<Map.Entry<String, Integer>>() {

            public int compare(Map.Entry<String, Integer> o1, Map.Entry<String, Integer> o2) {
                return o1.getKey().compareTo(o2.getKey());
            }
        });
        for (Map.Entry<String, Integer> level : iterationlevels) {
            if (level.getKey() != null && level.getValue() != null) {
                _foreach.addIterationLevels(JBPMMessages.IterationLevel.newBuilder().setId(level.getKey()).setLevel(level.getValue()));
            }
        }
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(NodeInstanceType.FOR_EACH_NODE).setForEach(_foreach.build());
    } else if (nodeInstance instanceof CompositeContextNodeInstance) {
        JBPMMessages.ProcessInstance.NodeInstanceContent.CompositeContextNode.Builder _composite = JBPMMessages.ProcessInstance.NodeInstanceContent.CompositeContextNode.newBuilder();
        JBPMMessages.ProcessInstance.NodeInstanceType _type = null;
        if (nodeInstance instanceof DynamicNodeInstance) {
            _type = JBPMMessages.ProcessInstance.NodeInstanceType.DYNAMIC_NODE;
        } else if (nodeInstance instanceof EventSubProcessNodeInstance) {
            _type = JBPMMessages.ProcessInstance.NodeInstanceType.EVENT_SUBPROCESS_NODE;
        } else {
            _type = JBPMMessages.ProcessInstance.NodeInstanceType.COMPOSITE_CONTEXT_NODE;
        }
        CompositeContextNodeInstance compositeNodeInstance = (CompositeContextNodeInstance) nodeInstance;
        List<Long> timerInstances = ((CompositeContextNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            for (Long id : timerInstances) {
                _composite.addTimerInstanceId(id);
            }
        }
        VariableScopeInstance variableScopeInstance = (VariableScopeInstance) compositeNodeInstance.getContextInstance(VariableScope.VARIABLE_SCOPE);
        if (variableScopeInstance != null) {
            List<Map.Entry<String, Object>> variables = new ArrayList<Map.Entry<String, Object>>(variableScopeInstance.getVariables().entrySet());
            Collections.sort(variables, new Comparator<Map.Entry<String, Object>>() {

                public int compare(Map.Entry<String, Object> o1, Map.Entry<String, Object> o2) {
                    return o1.getKey().compareTo(o2.getKey());
                }
            });
            for (Map.Entry<String, Object> variable : variables) {
                _composite.addVariable(ProtobufProcessMarshaller.marshallVariable(context, variable.getKey(), variable.getValue()));
            }
        }
        List<Map.Entry<String, Integer>> iterationlevels = new ArrayList<Map.Entry<String, Integer>>(compositeNodeInstance.getIterationLevels().entrySet());
        Collections.sort(iterationlevels, new Comparator<Map.Entry<String, Integer>>() {

            public int compare(Map.Entry<String, Integer> o1, Map.Entry<String, Integer> o2) {
                return o1.getKey().compareTo(o2.getKey());
            }
        });
        for (Map.Entry<String, Integer> level : iterationlevels) {
            if (level.getKey() != null && level.getValue() != null) {
                _composite.addIterationLevels(JBPMMessages.IterationLevel.newBuilder().setId(level.getKey()).setLevel(level.getValue()));
            }
        }
        List<NodeInstance> nodeInstances = new ArrayList<NodeInstance>(compositeNodeInstance.getNodeInstances());
        Collections.sort(nodeInstances, new Comparator<NodeInstance>() {

            public int compare(NodeInstance o1, NodeInstance o2) {
                return (int) (o1.getId() - o2.getId());
            }
        });
        for (NodeInstance subNodeInstance : nodeInstances) {
            _composite.addNodeInstance(writeNodeInstance(context, subNodeInstance));
        }
        List<ContextInstance> exclusiveGroupInstances = compositeNodeInstance.getContextInstances(ExclusiveGroup.EXCLUSIVE_GROUP);
        if (exclusiveGroupInstances != null) {
            for (ContextInstance contextInstance : exclusiveGroupInstances) {
                JBPMMessages.ProcessInstance.ExclusiveGroupInstance.Builder _excl = JBPMMessages.ProcessInstance.ExclusiveGroupInstance.newBuilder();
                ExclusiveGroupInstance exclusiveGroupInstance = (ExclusiveGroupInstance) contextInstance;
                Collection<NodeInstance> groupNodeInstances = exclusiveGroupInstance.getNodeInstances();
                for (NodeInstance groupNodeInstance : groupNodeInstances) {
                    _excl.addGroupNodeInstanceId(groupNodeInstance.getId());
                }
                _composite.addExclusiveGroup(_excl.build());
            }
        }
        _content = JBPMMessages.ProcessInstance.NodeInstanceContent.newBuilder().setType(_type).setComposite(_composite.build());
    } else {
        throw new IllegalArgumentException("Unknown node instance type: " + nodeInstance);
    }
    return _content.build();
}