Examples with VariableScopeInstance org.jbpm.process.instance.context.variable.VariableScopeInstance used on opensource projects

Example 16 with VariableScopeInstance

use of org.jbpm.process.instance.context.variable.VariableScopeInstance in project jbpm by kiegroup.

the class AbstractProcessInstanceMarshaller method writeProcessInstance.

// Output methods
public Object writeProcessInstance(MarshallerWriteContext context, ProcessInstance processInstance) throws IOException {
    WorkflowProcessInstanceImpl workFlow = (WorkflowProcessInstanceImpl) processInstance;
    ObjectOutputStream stream = context.stream;
    stream.writeLong(workFlow.getId());
    stream.writeUTF(workFlow.getProcessId());
    stream.writeInt(workFlow.getState());
    stream.writeLong(workFlow.getNodeInstanceCounter());
    SwimlaneContextInstance swimlaneContextInstance = (SwimlaneContextInstance) workFlow.getContextInstance(SwimlaneContext.SWIMLANE_SCOPE);
    if (swimlaneContextInstance != null) {
        Map<String, String> swimlaneActors = swimlaneContextInstance.getSwimlaneActors();
        stream.writeInt(swimlaneActors.size());
        for (Map.Entry<String, String> entry : swimlaneActors.entrySet()) {
            stream.writeUTF(entry.getKey());
            stream.writeUTF(entry.getValue());
        }
    } else {
        stream.writeInt(0);
    }
    List<NodeInstance> nodeInstances = new ArrayList<NodeInstance>(workFlow.getNodeInstances());
    Collections.sort(nodeInstances, new Comparator<NodeInstance>() {

        public int compare(NodeInstance o1, NodeInstance o2) {
            return (int) (o1.getId() - o2.getId());
        }
    });
    for (NodeInstance nodeInstance : nodeInstances) {
        stream.writeShort(PersisterEnums.NODE_INSTANCE);
        writeNodeInstance(context, nodeInstance);
    }
    stream.writeShort(PersisterEnums.END);
    List<ContextInstance> exclusiveGroupInstances = workFlow.getContextInstances(ExclusiveGroup.EXCLUSIVE_GROUP);
    if (exclusiveGroupInstances == null) {
        stream.writeInt(0);
    } else {
        stream.writeInt(exclusiveGroupInstances.size());
        for (ContextInstance contextInstance : exclusiveGroupInstances) {
            ExclusiveGroupInstance exclusiveGroupInstance = (ExclusiveGroupInstance) contextInstance;
            Collection<NodeInstance> groupNodeInstances = exclusiveGroupInstance.getNodeInstances();
            stream.writeInt(groupNodeInstances.size());
            for (NodeInstance nodeInstance : groupNodeInstances) {
                stream.writeLong(nodeInstance.getId());
            }
        }
    }
    VariableScopeInstance variableScopeInstance = (VariableScopeInstance) workFlow.getContextInstance(VariableScope.VARIABLE_SCOPE);
    Map<String, Object> variables = variableScopeInstance.getVariables();
    List<String> keys = new ArrayList<String>(variables.keySet());
    Collection<Object> values = variables.values();
    Collections.sort(keys, new Comparator<String>() {

        public int compare(String o1, String o2) {
            return o1.compareTo(o2);
        }
    });
    // Process Variables
    // - Number of non null Variables = nonnullvariables.size()
    // For Each Variable
    // - Variable Key
    // - Marshalling Strategy Index
    // - Marshalled Object
    Collection<Object> notNullValues = new ArrayList<Object>();
    for (Object value : values) {
        if (value != null) {
            notNullValues.add(value);
        }
    }
    stream.writeInt(notNullValues.size());
    for (String key : keys) {
        Object object = variables.get(key);
        if (object != null) {
            stream.writeUTF(key);
            // New marshalling algorithm when using strategies
            int useNewMarshallingStrategyAlgorithm = -2;
            stream.writeInt(useNewMarshallingStrategyAlgorithm);
            // Choose first strategy that accepts the object (what was always done)
            ObjectMarshallingStrategy strategy = context.objectMarshallingStrategyStore.getStrategyObject(object);
            stream.writeUTF(strategy.getClass().getName());
            strategy.write(stream, object);
        }
    }
    return null;
}

Example 17 with VariableScopeInstance

use of org.jbpm.process.instance.context.variable.VariableScopeInstance in project jbpm by kiegroup.

the class AbstractProcessInstanceMarshaller method writeNodeInstanceContent.

protected void writeNodeInstanceContent(ObjectOutputStream stream, NodeInstance nodeInstance, MarshallerWriteContext context) throws IOException {
    if (nodeInstance instanceof RuleSetNodeInstance) {
        stream.writeShort(PersisterEnums.RULE_SET_NODE_INSTANCE);
        List<Long> timerInstances = ((RuleSetNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            stream.writeInt(timerInstances.size());
            for (Long id : timerInstances) {
                stream.writeLong(id);
            }
        } else {
            stream.writeInt(0);
        }
    } else if (nodeInstance instanceof HumanTaskNodeInstance) {
        stream.writeShort(PersisterEnums.HUMAN_TASK_NODE_INSTANCE);
        stream.writeLong(((HumanTaskNodeInstance) nodeInstance).getWorkItemId());
        List<Long> timerInstances = ((HumanTaskNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            stream.writeInt(timerInstances.size());
            for (Long id : timerInstances) {
                stream.writeLong(id);
            }
        } else {
            stream.writeInt(0);
        }
    } else if (nodeInstance instanceof WorkItemNodeInstance) {
        stream.writeShort(PersisterEnums.WORK_ITEM_NODE_INSTANCE);
        stream.writeLong(((WorkItemNodeInstance) nodeInstance).getWorkItemId());
        List<Long> timerInstances = ((WorkItemNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            stream.writeInt(timerInstances.size());
            for (Long id : timerInstances) {
                stream.writeLong(id);
            }
        } else {
            stream.writeInt(0);
        }
    } else if (nodeInstance instanceof SubProcessNodeInstance) {
        stream.writeShort(PersisterEnums.SUB_PROCESS_NODE_INSTANCE);
        stream.writeLong(((SubProcessNodeInstance) nodeInstance).getProcessInstanceId());
        List<Long> timerInstances = ((SubProcessNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            stream.writeInt(timerInstances.size());
            for (Long id : timerInstances) {
                stream.writeLong(id);
            }
        } else {
            stream.writeInt(0);
        }
    } else if (nodeInstance instanceof MilestoneNodeInstance) {
        stream.writeShort(PersisterEnums.MILESTONE_NODE_INSTANCE);
        List<Long> timerInstances = ((MilestoneNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            stream.writeInt(timerInstances.size());
            for (Long id : timerInstances) {
                stream.writeLong(id);
            }
        } else {
            stream.writeInt(0);
        }
    } else if (nodeInstance instanceof EventNodeInstance) {
        stream.writeShort(PersisterEnums.EVENT_NODE_INSTANCE);
    } else if (nodeInstance instanceof TimerNodeInstance) {
        stream.writeShort(PersisterEnums.TIMER_NODE_INSTANCE);
        stream.writeLong(((TimerNodeInstance) nodeInstance).getTimerId());
    } else if (nodeInstance instanceof JoinInstance) {
        stream.writeShort(PersisterEnums.JOIN_NODE_INSTANCE);
        Map<Long, Integer> triggers = ((JoinInstance) nodeInstance).getTriggers();
        stream.writeInt(triggers.size());
        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) {
            stream.writeLong(key);
            stream.writeInt(triggers.get(key));
        }
    } else if (nodeInstance instanceof StateNodeInstance) {
        stream.writeShort(PersisterEnums.STATE_NODE_INSTANCE);
        List<Long> timerInstances = ((StateNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            stream.writeInt(timerInstances.size());
            for (Long id : timerInstances) {
                stream.writeLong(id);
            }
        } else {
            stream.writeInt(0);
        }
    } else if (nodeInstance instanceof CompositeContextNodeInstance) {
        if (nodeInstance instanceof DynamicNodeInstance) {
            stream.writeShort(PersisterEnums.DYNAMIC_NODE_INSTANCE);
        } else {
            stream.writeShort(PersisterEnums.COMPOSITE_NODE_INSTANCE);
        }
        CompositeContextNodeInstance compositeNodeInstance = (CompositeContextNodeInstance) nodeInstance;
        List<Long> timerInstances = ((CompositeContextNodeInstance) nodeInstance).getTimerInstances();
        if (timerInstances != null) {
            stream.writeInt(timerInstances.size());
            for (Long id : timerInstances) {
                stream.writeLong(id);
            }
        } else {
            stream.writeInt(0);
        }
        VariableScopeInstance variableScopeInstance = (VariableScopeInstance) compositeNodeInstance.getContextInstance(VariableScope.VARIABLE_SCOPE);
        if (variableScopeInstance == null) {
            stream.writeInt(0);
        } else {
            Map<String, Object> variables = variableScopeInstance.getVariables();
            List<String> keys = new ArrayList<String>(variables.keySet());
            Collections.sort(keys, new Comparator<String>() {

                public int compare(String o1, String o2) {
                    return o1.compareTo(o2);
                }
            });
            stream.writeInt(keys.size());
            for (String key : keys) {
                stream.writeUTF(key);
                stream.writeObject(variables.get(key));
            }
        }
        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) {
            stream.writeShort(PersisterEnums.NODE_INSTANCE);
            writeNodeInstance(context, subNodeInstance);
        }
        stream.writeShort(PersisterEnums.END);
        List<ContextInstance> exclusiveGroupInstances = compositeNodeInstance.getContextInstances(ExclusiveGroup.EXCLUSIVE_GROUP);
        if (exclusiveGroupInstances == null) {
            stream.writeInt(0);
        } else {
            stream.writeInt(exclusiveGroupInstances.size());
            for (ContextInstance contextInstance : exclusiveGroupInstances) {
                ExclusiveGroupInstance exclusiveGroupInstance = (ExclusiveGroupInstance) contextInstance;
                Collection<NodeInstance> groupNodeInstances = exclusiveGroupInstance.getNodeInstances();
                stream.writeInt(groupNodeInstances.size());
                for (NodeInstance groupNodeInstance : groupNodeInstances) {
                    stream.writeLong(groupNodeInstance.getId());
                }
            }
        }
    } else if (nodeInstance instanceof ForEachNodeInstance) {
        stream.writeShort(PersisterEnums.FOR_EACH_NODE_INSTANCE);
        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) {
                stream.writeShort(PersisterEnums.NODE_INSTANCE);
                writeNodeInstance(context, subNodeInstance);
            }
        }
        stream.writeShort(PersisterEnums.END);
    } else {
        throw new IllegalArgumentException("Unknown node instance type: " + nodeInstance);
    }
}

Example 18 with VariableScopeInstance

use of org.jbpm.process.instance.context.variable.VariableScopeInstance 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 19 with VariableScopeInstance

use of org.jbpm.process.instance.context.variable.VariableScopeInstance in project jbpm by kiegroup.

the class AbstractProtobufProcessInstanceMarshaller method readProcessInstance.

// Input methods
public ProcessInstance readProcessInstance(MarshallerReaderContext context) throws IOException {
    InternalKnowledgeBase ruleBase = context.kBase;
    InternalWorkingMemory wm = context.wm;
    JBPMMessages.ProcessInstance _instance = (org.jbpm.marshalling.impl.JBPMMessages.ProcessInstance) context.parameterObject;
    if (_instance == null) {
        // try to parse from the stream
        ExtensionRegistry registry = PersisterHelper.buildRegistry(context, null);
        Header _header;
        try {
            _header = PersisterHelper.readFromStreamWithHeaderPreloaded(context, registry);
        } catch (ClassNotFoundException e) {
            // Java 5 does not accept [new IOException(String, Throwable)]
            IOException ioe = new IOException("Error deserializing process instance.");
            ioe.initCause(e);
            throw ioe;
        }
        _instance = JBPMMessages.ProcessInstance.parseFrom(_header.getPayload(), registry);
    }
    WorkflowProcessInstanceImpl processInstance = createProcessInstance();
    processInstance.setId(_instance.getId());
    String processId = _instance.getProcessId();
    processInstance.setProcessId(processId);
    String processXml = _instance.getProcessXml();
    Process process = null;
    if (processXml != null && processXml.trim().length() > 0) {
        processInstance.setProcessXml(processXml);
        process = processInstance.getProcess();
    } else {
        process = ruleBase.getProcess(processId);
        if (process == null) {
            throw new RuntimeException("Could not find process " + processId + " when restoring process instance " + processInstance.getId());
        }
        processInstance.setProcess(process);
    }
    processInstance.setDescription(_instance.getDescription());
    processInstance.setState(_instance.getState());
    processInstance.setParentProcessInstanceId(_instance.getParentProcessInstanceId());
    processInstance.setSignalCompletion(_instance.getSignalCompletion());
    processInstance.setDeploymentId(_instance.getDeploymentId());
    processInstance.setCorrelationKey(_instance.getCorrelationKey());
    processInstance.internalSetSlaCompliance(_instance.getSlaCompliance());
    if (_instance.getSlaDueDate() > 0) {
        processInstance.internalSetSlaDueDate(new Date(_instance.getSlaDueDate()));
    }
    processInstance.internalSetSlaTimerId(_instance.getSlaTimerId());
    long nodeInstanceCounter = _instance.getNodeInstanceCounter();
    processInstance.setKnowledgeRuntime(wm.getKnowledgeRuntime());
    processInstance.internalSetNodeInstanceCounter(nodeInstanceCounter);
    for (String completedNodeId : _instance.getCompletedNodeIdsList()) {
        processInstance.addCompletedNodeId(completedNodeId);
    }
    if (_instance.getSwimlaneContextCount() > 0) {
        Context swimlaneContext = ((org.jbpm.process.core.Process) process).getDefaultContext(SwimlaneContext.SWIMLANE_SCOPE);
        SwimlaneContextInstance swimlaneContextInstance = (SwimlaneContextInstance) processInstance.getContextInstance(swimlaneContext);
        for (JBPMMessages.ProcessInstance.SwimlaneContextInstance _swimlane : _instance.getSwimlaneContextList()) {
            swimlaneContextInstance.setActorId(_swimlane.getSwimlane(), _swimlane.getActorId());
        }
    }
    for (JBPMMessages.ProcessInstance.NodeInstance _node : _instance.getNodeInstanceList()) {
        context.parameterObject = _node;
        readNodeInstance(context, processInstance, processInstance);
    }
    for (JBPMMessages.ProcessInstance.ExclusiveGroupInstance _excl : _instance.getExclusiveGroupList()) {
        ExclusiveGroupInstance exclusiveGroupInstance = new ExclusiveGroupInstance();
        processInstance.addContextInstance(ExclusiveGroup.EXCLUSIVE_GROUP, exclusiveGroupInstance);
        for (Long nodeInstanceId : _excl.getGroupNodeInstanceIdList()) {
            NodeInstance nodeInstance = ((org.jbpm.workflow.instance.NodeInstanceContainer) processInstance).getNodeInstance(nodeInstanceId, true);
            if (nodeInstance == null) {
                throw new IllegalArgumentException("Could not find node instance when deserializing exclusive group instance: " + nodeInstanceId);
            }
            exclusiveGroupInstance.addNodeInstance(nodeInstance);
        }
    }
    if (_instance.getVariableCount() > 0) {
        Context variableScope = ((org.jbpm.process.core.Process) process).getDefaultContext(VariableScope.VARIABLE_SCOPE);
        VariableScopeInstance variableScopeInstance = (VariableScopeInstance) processInstance.getContextInstance(variableScope);
        for (JBPMMessages.Variable _variable : _instance.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 (_instance.getIterationLevelsCount() > 0) {
        for (JBPMMessages.IterationLevel _level : _instance.getIterationLevelsList()) {
            processInstance.getIterationLevels().put(_level.getId(), _level.getLevel());
        }
    }
    processInstance.reconnect();
    return processInstance;
}

Example 20 with VariableScopeInstance

use of org.jbpm.process.instance.context.variable.VariableScopeInstance in project jbpm by kiegroup.

the class ProcessMarshallingTest method testMarshallingProcessInstanceWithWorkItem.

@Test
public void testMarshallingProcessInstanceWithWorkItem() throws Exception {
    String process = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + "<process xmlns=\"http://drools.org/drools-5.0/process\"\n" + "    xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" + "    xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" + "    type=\"RuleFlow\" name=\"ruleflow\" id=\"org.test.ruleflow\" package-name=\"org.test\" >\n" + "  <header>\n" + "    <variables>\n" + "      <variable name=\"myVariable\" >\n" + "        <type name=\"org.jbpm.process.core.datatype.impl.type.StringDataType\" />\n" + "        <value>OldValue</value>\n" + "      </variable>\n" + "    </variables>\n" + "  </header>\n" + "  <nodes>\n" + "    <start id=\"1\" name=\"Start\" />\n" + "    <workItem id=\"2\" name=\"Email\" >\n" + "      <work name=\"Email\" >\n" + "        <parameter name=\"Subject\" >\n" + "          <type name=\"org.jbpm.process.core.datatype.impl.type.StringDataType\" />\n" + "          <value>Mail</value>\n" + "        </parameter>\n" + "        <parameter name=\"Text\" >\n" + "          <type name=\"org.jbpm.process.core.datatype.impl.type.StringDataType\" />\n" + "          <value>This is an email</value>\n" + "        </parameter>\n" + "        <parameter name=\"To\" >\n" + "          <type name=\"org.jbpm.process.core.datatype.impl.type.StringDataType\" />\n" + "          <value>you@mail.com</value>\n" + "        </parameter>\n" + "        <parameter name=\"From\" >\n" + "          <type name=\"org.jbpm.process.core.datatype.impl.type.StringDataType\" />\n" + "          <value>me@mail.com</value>\n" + "        </parameter>\n" + "      </work>\n" + "    </workItem>\n" + "    <end id=\"3\" name=\"End\" />\n" + "  </nodes>\n" + "  <connections>\n" + "    <connection from=\"1\" to=\"2\"/>\n" + "    <connection from=\"2\" to=\"3\"/>\n" + "  </connections>\n" + "</process>";
    builder.addProcessFromXml(new StringReader(process));
    KieSession session = createKieSession(builder.getPackages());
    TestWorkItemHandler handler = new TestWorkItemHandler();
    session.getWorkItemManager().registerWorkItemHandler("Email", handler);
    Map<String, Object> variables = new HashMap<String, Object>();
    variables.put("myVariable", "ThisIsMyValue");
    session.startProcess("org.test.ruleflow", variables);
    assertEquals(1, session.getProcessInstances().size());
    assertTrue(handler.getWorkItem() != null);
    session = getSerialisedStatefulKnowledgeSession(session);
    assertEquals(1, session.getProcessInstances().size());
    VariableScopeInstance variableScopeInstance = (VariableScopeInstance) ((ProcessInstance) session.getProcessInstances().iterator().next()).getContextInstance(VariableScope.VARIABLE_SCOPE);
    assertEquals("ThisIsMyValue", variableScopeInstance.getVariable("myVariable"));
    session.getWorkItemManager().completeWorkItem(handler.getWorkItem().getId(), null);
    assertEquals(0, session.getProcessInstances().size());
}