P15GEN2\59518
2025-10-10 9f6890646993d16260d4201d613c092132856127
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package foundation.state.approve;
 
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
 
import foundation.data.entity.Entity;
import foundation.data.entity.EntitySet;
import foundation.data.entity.Filter;
import foundation.data.entity.OrderBy;
import foundation.data.object.DataObject;
import foundation.data.object.EntitySaver;
import foundation.json.IJSONProvider;
import foundation.json.IJSONWriter;
import foundation.persist.NamedSQL;
import foundation.persist.SQLRunner;
import foundation.state.ReferObject;
import foundation.state.State;
import foundation.state.StateCenter;
import foundation.state.StateMachine;
import foundation.state.StateOperate;
import foundation.state.StatePoint;
import foundation.token.IOnlineUser;
import foundation.util.ContentBuilder;
import foundation.util.ID;
import foundation.util.Util;
import foundation.value.ValueType;
import foundation.workflow.Event;
import foundation.workflow.EventType;
import foundation.workflow.Moment;
import foundation.workflow.WorkStep;
import foundation.workflow.WorkflowDispatcher;
import foundation.workflow.reference.FlowSender;
 
public class WorkingInstance implements IJSONProvider {
    
    private DataObject masterObject;
    private StateMachine machine;
    private String dataName;
    private String docId;
    private Date now;
    private String masterId;
    private Entity master;
    private WorkingApproveStepList workingSteps;
    private EntitySet histories;
    private boolean builded;
    private int pos;
    
    
    public WorkingInstance(String dataName, String docId){
        this.docId = docId;
        masterObject = DataObject.getInstance("sys_state_working_main");
        builded = true;
    }
    
    public WorkingInstance(StateMachine machine, String dataName, String docId) throws Exception {
        this.machine = machine;
        this.docId = docId;
        this.dataName = dataName;
        
        masterObject = DataObject.getInstance("sys_state_working_main");
        now = new Date();
        builded = false;
    }
 
 
    public static State start(String dataName, String docId, StatePoint statePoint, StatePoint hostPoint, StatePoint referPoint, ReferObject referObject, IOnlineUser user, WorkStep step) throws Exception {
        StateMachine machine = statePoint.getMachine();
        
        //1. 关闭指定单据先前流程的查询权限和审批权限(只能查询且审批新启动的审批流程) 
        closeTargetDocumentFlow(docId);
        
        //2. 创建工作流实例
        WorkingInstance flowInstance = new WorkingInstance(machine, dataName, docId);
 
        //3. 插入审批流主记录
        flowInstance.insertMaster(dataName, statePoint, hostPoint, referPoint, referObject);
        
        //4. 插入审批流的执行步骤、执行人员
        flowInstance.insertWorkingSteps(statePoint, user, step);    
        
        //5. 执行跳过
        flowInstance.execSkip(step, statePoint, user);
        //6.返回第一个步骤的明细状态
        return statePoint.getToState();
    }
 
    public static WorkingInstance getInstance(StateMachine machine, String dataName, String docId) throws Exception {
        WorkingInstance result = new WorkingInstance(machine, dataName, docId);
        result.loadWorkingMaster();
        return result;
    }
    
    private void init() throws Exception {
        if (builded) {
            return;
        }
        
        //1. 为主记录加锁
        lockMaster();
        
        //2. 加载步骤
        loadWorkingSteps();
        
        //3. 
        builded = true;
    }
 
    private void execSkip(WorkStep step, StatePoint statePoint, IOnlineUser onlineUser) throws Exception {
        SkipType skipType = statePoint.getSkipType();
        
        if (skipType != SkipType.ToPresenter) {
            return ;
        }
        
        StepLocation position = null;
        int stepIndex = getWorkingUserIndex(onlineUser.getId());
        for (int i = 0; i < stepIndex; i++) {
            ApprovalResult approvalResult = runStep(step, statePoint, onlineUser, ApproveOperate.Approve, "跳过");
            position = approvalResult.getStepLoscation();
        }
        
        if (StepLocation.AtSuccess == position) {
            close();
            ReferObject referObject = new ReferObject(getMaster());
            StateCenter.approveRunState(step, statePoint, this, StateOperate.StateEnd, referObject, null);
        }
    }
    
    public int getWorkingUserIndex(String userId) throws Exception {
        NamedSQL namedSQL = NamedSQL.getInstance("getWorkingUserIndex");
        namedSQL.setParam("parent_id", masterId);
        namedSQL.setParam("user_id", userId);
    
        return SQLRunner.getInteger(namedSQL);
    }
    
    public void close() throws Exception {
        EntitySaver saver = masterObject.createEntitySaver(master);
        saver.set("is_working", "F");
        saver.update();
    }
    
    public void loadActive(boolean loadStep, boolean loadHistory) throws Exception {
        //1. 加载审批主记录
        loadActiveMaster();
        
        //2. 加载审批步骤
        if (loadStep) {
            loadWorkingSteps();
        }
        
        //3. 加载审批历史
        if (loadHistory) {
            loadStepHistorys();
        }
    }
    
    public void gotoActiveStep() throws Exception {
        //1.
        if (!builded) {
            synchronized (this) {
                if (!builded) {
                    init();
                }
            }
        }
        
        //2.
        int max = workingSteps.size();
        pos = -1;
        
        for (int i = 0; i < max; i++) {
            WorkingApproveStep step = workingSteps.get(i);
            
            if (step.isWorking()) {
                pos = i;
            }
        }
    }
 
    public boolean validateCurrentUser(ApproveOperate operator, IOnlineUser onlineUser, String creatorId) throws Exception {
        if (onlineUser == null) {
            return false;
        }
        
        if ("admin".equalsIgnoreCase(onlineUser.getName())) {
            return true;
        }
         
        WorkingApproveStep step = getCurrentStep();
        
        if (step == null) {
            return false;
        }
        
        String userId = onlineUser.getId();
        if (step.includeUser(userId)) {
            return true;
        }
        return (ApproveOperate.PullBack == operator) && userId.equals(creatorId);
    }
 
    public ApprovalResult runStep(WorkStep workStep, StatePoint statePoint, IOnlineUser onlineUser, ApproveOperate operator, String remark) throws Exception {
        if (ApproveOperate.Approve == operator) {
            return runApprove(workStep, statePoint, onlineUser, remark);
        }
        else if (ApproveOperate.GoEnd == operator) {
            return runGoEnd(workStep, statePoint, onlineUser, remark);
        }
        else if (ApproveOperate.GoBack == operator) {
            return runGoBack(workStep, statePoint, onlineUser, remark);
        }
        else if (ApproveOperate.GoHome == operator) {
            return runGoHome(workStep, statePoint, onlineUser, remark);
        }
        else if (ApproveOperate.PullBack == operator) {
            return runPullBack(workStep, statePoint, onlineUser, remark);
        }
        
        return null;
    }
 
    private ApprovalResult runApprove(WorkStep workStep, StatePoint statePoint, IOnlineUser user, String remark) throws Exception {
        ApprovalResult approvalResult = new ApprovalResult();
        WorkingApproveStep currentStep = getCurrentStep();
        
        //1. 触发before event 事件
        FlowSender sender = new FlowSender(currentStep.getApproveStepId());
        Event event = new Event(EventType.Approve, dataName, masterId, Moment.Before, ApproveOperate.Approve.name(), sender);
        WorkflowDispatcher.onFireEvent(workStep, event);
        
        if (!workStep.isSimulate()) {
            //2.完成当前步骤
            closeOneStep(currentStep, user, remark);
            insertOneHistory(currentStep, user, ApproveOperate.Approve, remark);
            
            //3. 开启下一个步骤(如果当前步骤是最后一个步骤,就不需要开启下一个步骤)
            WorkingApproveStep nextStep = goNextStep();
            openOneStep(nextStep);
        }
 
        //4. 返回运行后,最新的位置
        if (isAtSuccess()) {
            //4.1 审批流完成(成功)
            approvalResult.setStepLoscation(StepLocation.AtSuccess);
        }        
        else if (isAtLast()) {
            //4.2 审批停留在最后一个步骤
            approvalResult.setStepLoscation(StepLocation.AtLast);
        }
        else {
            //4.3 审批停留在中间步骤
            approvalResult.setStepLoscation(StepLocation.InMiddle);
        }
        
        //5. fire after event
        event = new Event(EventType.Approve, dataName, masterId, Moment.After, ApproveOperate.Approve.name(), sender);
        WorkflowDispatcher.onFireEvent(workStep, event);
        
        return approvalResult;
    }
 
    private ApprovalResult runGoEnd(WorkStep workStep, StatePoint statePoint, IOnlineUser user, String remark) throws Exception {
        ApprovalResult approvalResult = new ApprovalResult();
        WorkingApproveStep currentStep = getCurrentStep();
        
        //1. 触发before event 事件
        FlowSender reference = new FlowSender(currentStep.getId());
        Event event = new Event(EventType.Approve, dataName, masterId, Moment.Before, ApproveOperate.GoEnd.name(), reference);
        WorkflowDispatcher.onFireEvent(workStep, event);
        
        if (!workStep.isSimulate()) {
            //2. 完成当前步骤
            closeOneStep(currentStep, user, remark);
            insertOneHistory(currentStep, user, ApproveOperate.PullBack, remark);
        }
        
        //3. 跳出审批,进入提交完成状态(成功)
        approvalResult.setStepLoscation(StepLocation.AtSuccess);
        
        //4. fire after event
        event = new Event(EventType.Approve, dataName, masterId, Moment.After, ApproveOperate.GoEnd.name(), reference);
        WorkflowDispatcher.onFireEvent(workStep, event);
        
        return approvalResult;
    }
 
    private ApprovalResult runGoBack(WorkStep workStep, StatePoint statePoint, IOnlineUser user, String remark) throws Exception {
        ApprovalResult approvalResult = new ApprovalResult();
        WorkingApproveStep currentStep = getCurrentStep();
        
        //1. 触发before event 事件
        FlowSender reference = new FlowSender(currentStep.getId());
        Event event = new Event(EventType.Approve, dataName, masterId, Moment.Before, ApproveOperate.GoBack.name(), reference);
        WorkflowDispatcher.onFireEvent(workStep, event);
            
        //2. 完成当前步骤
        if (!workStep.isSimulate()) {
            closeOneStep(currentStep, user, remark);
            insertOneHistory(currentStep, user, ApproveOperate.GoBack, remark);
            
            //3. 开启下一个步骤(如果当前步骤是最后一个步骤,就不需要开启下一个步骤)
            WorkingApproveStep priorStep = goPriorStep();
            openOneStep(priorStep);
        }
        
        //4. 返回运行后,最新的位置
        if (isAtHome()) {
            //4.1 跳出审批,进入提交申请前的状态(Input)
            approvalResult.setStepLoscation(StepLocation.AtHome);
        }
        else if (isAtFirst()) {
            //4.2 审批停留在第一个步骤
            approvalResult.setStepLoscation(StepLocation.AtFirst);
        }
        else {
            //4.3 审批停留在中间步骤
            approvalResult.setStepLoscation(StepLocation.InMiddle);
        }
        
        //5. fire after event
        event = new Event(EventType.Approve, dataName, masterId, Moment.After, ApproveOperate.GoBack.name(), reference);
        WorkflowDispatcher.onFireEvent(workStep, event);
        
        return approvalResult;
    }
    
    private ApprovalResult runGoHome(WorkStep workStep, StatePoint statePoint, IOnlineUser user, String remark) throws Exception {
        ApprovalResult approvalResult = new ApprovalResult();
        WorkingApproveStep currentStep = getCurrentStep();
        
        //1. 完成当前步骤
        FlowSender reference = new FlowSender(currentStep.getId());
        Event event = new Event(EventType.Approve, dataName, masterId, Moment.Before, ApproveOperate.GoHome.name(), reference);
        WorkflowDispatcher.onFireEvent(workStep, event);
        
        if (!workStep.isSimulate()) {
            //2. 触发before event 事件
            closeOneStep(currentStep, user, remark);
            insertOneHistory(currentStep, user, ApproveOperate.GoHome, remark);
        }
        
        //3. 跳出审批,进入提交申请前的状态(Input)
        approvalResult.setStepLoscation(StepLocation.AtHome);
        
        //4. fire after event
        event = new Event(EventType.Approve, dataName, masterId, Moment.After, ApproveOperate.GoHome.name(), reference);
        WorkflowDispatcher.onFireEvent(workStep, event);
        return approvalResult;
    }
 
    private ApprovalResult runPullBack(WorkStep workStep, StatePoint statePoint, IOnlineUser user, String remark) throws Exception {
        ApprovalResult approvalResult = new ApprovalResult();
        WorkingApproveStep step = new PullBackStep(statePoint);
        
        //1. 触发before event 事件
        FlowSender reference = new FlowSender(step.getId());
        Event event = new Event(EventType.Approve, dataName, masterId, Moment.Before, ApproveOperate.PullBack.name(), reference);
        WorkflowDispatcher.onFireEvent(workStep, event);
        
        if (!workStep.isSimulate()) {
            //2. 插入历史
            insertOneHistory(step, user, ApproveOperate.PullBack, remark);
        }
        
        //3. 跳出审批,进入提交申请前的状态(Input)
        approvalResult.setStepLoscation(StepLocation.AtHome);
        
        //4. 触发before event 事件
        event = new Event(EventType.Approve, dataName, masterId, Moment.After, ApproveOperate.PullBack.name(), reference);
        WorkflowDispatcher.onFireEvent(workStep, event);
        
        return approvalResult;
    }
 
    public boolean isAtFirst() throws Exception {
        //1.
        if (!builded) {
            synchronized (this) {
                if (!builded) {
                    init();
                }
            }
        }
        
        //2. 
        return pos == 0;
    }
    
    public boolean isAtHome() throws Exception {
        //1.
        if (!builded) {
            synchronized (this) {
                if (!builded) {
                    init();
                }
            }
        }
        
        //2. 
        return pos < 0;
    }
 
    public boolean isAtLast() throws Exception {
        //1.
        if (!builded) {
            synchronized (this) {
                if (!builded) {
                    init();
                }
            }
        }
        
        //2. 
        return pos == workingSteps.actualSize() - 1;
    }
    
    public boolean isAtSuccess() throws Exception {
        //1.
        if (!builded) {
            synchronized (this) {
                if (!builded) {
                    init();
                }
            }
        }
        
        //2. 
        return pos > workingSteps.actualSize() - 1;
    }
    
    public int getPos() throws Exception {
        //1.
        if (!builded) {
            synchronized (this) {
                if (!builded) {
                    init();
                }
            }
        }
        
        //2. 
        return pos;
    }
 
    private static void closeTargetDocumentFlow(String docId) throws Exception {
        NamedSQL namedSQL = NamedSQL.getInstance("closeApproveFlowAll");
        namedSQL.setParam("doc_id", docId);
        namedSQL.execute();
        
        namedSQL = NamedSQL.getInstance("closeApproveFlowSteps");
        namedSQL.setParam("doc_id", docId);
        namedSQL.execute();            
    }
 
    private void insertMaster(String dataName, StatePoint masterPoint, StatePoint hostPoint, StatePoint referPoint, ReferObject referObject) throws Exception {
        masterId = ID.newValue();
        
        String hostPointId = hostPoint == null ? null : hostPoint.getId();
        String referPointId = referPoint == null ? null : referPoint.getId();
        
        DataObject dataObject = DataObject.getInstance("sys_state_working_main");
        master = dataObject.createTableEntity(true);
        
        master.set("id", masterId);
        master.set("machine_id", machine.getId());
        master.set("dataname", dataName);
        master.set("operator", masterPoint.getOperator());
        master.set("title", masterPoint.getStateOperate().getName());
        master.set("point_master_id", masterPoint.getId());
        master.set("point_host_id", hostPointId);
        master.set("point_refer_id", referPointId);
        master.set("doc_id", docId);
        master.set("is_working", "T");
        master.set("is_alive", "T");
        
        DataObject docObject = DataObject.getInstance(dataName);
        Entity entity = docObject.getBrowseEntity(docId);
        String description = entity.getString("code");
        
        if (Util.isEmpty(description)){
            description = entity.getString("agreement_no");
        }
        
        if (Util.isEmpty(description)){
            description = entity.getString("apply_no");
        }
        master.set("description", description);
        
        if (referObject != null) {
            master.set("refer_name", referObject.getDataName());
            master.set("refer_id", referObject.getId());
        }
        
        dataObject.insertEntity(master);        
    }
 
    private void loadWorkingMaster() throws Exception {
        Filter filter = new Filter("doc_id", docId).add("is_working", "T");
        master = masterObject.getTableEntity(filter);
        
        if (master == null ||  master.isEmpty()) {
            masterId = null;
            return;
        }
        
        masterId =  master.getId();
    }
    
    private void loadActiveMaster() throws Exception {
        Filter filter = new Filter("doc_id", docId).add("is_alive", "T"); 
        master = masterObject.getTableEntity(filter);
        
        if (master == null ||  master.isEmpty()) {
            masterId = null;
            return;
        }
        
        masterId =  master.getId();
    }
 
    private void lockMaster() throws Exception {
        DataObject dataObject = DataObject.getInstance("sys_state_working_main");
        
        EntitySaver saver = dataObject.createEntitySaver(master.getId());
        saver.set("lock_stamp", ID.newValue());
        saver.update();    
    }
 
    private void closeOneStep(WorkingApproveStep step, IOnlineUser user, String remark) throws Exception {
        if (step == null) {
            return;
        }
        
        DataObject dataObject = DataObject.getInstance("sys_state_working_step");
        
        EntitySaver saver = dataObject.createEntitySaver(step.getId());
        saver.set("is_active", "F");
        saver.set("end_time", now);
        saver.set("writer_name", user.getEmployeeName());
        saver.set("remark", remark);
        saver.update();    
    }
    
    private void openOneStep(WorkingApproveStep step) throws Exception {
        if (step == null) {
            return;
        }
        
        DataObject dataObject = DataObject.getInstance("sys_state_working_step");
        
        EntitySaver saver = dataObject.createEntitySaver(step.getId());
        saver.set("is_active", "T");
        saver.set("begin_time", now);
        saver.set("end_time", ValueType.Null); 
        saver.set("remark", ValueType.Null);
        saver.update();        
    }
 
    private void loadWorkingSteps() throws Exception {
        workingSteps = new WorkingApproveStepList();
        
        DataObject dataObject = DataObject.getInstance("sys_state_working_step");
        EntitySet entitySet = dataObject.getTableEntitySet(new Filter("parent_id", masterId), new OrderBy("index_no, is_copy asc"));
        
        if (entitySet == null) {
            return;
        }
        
        pos = -1; int idx = 0;
        
        for (Entity entity: entitySet) {
            WorkingApproveStep workingStep = new WorkingApproveStep();
            workingStep.load(entity);
            workingSteps.loadOne(workingStep);
            
            if (workingStep.isWorking()) {
                pos = idx;
            }
            
            idx++;
        }
    }
    
    public void resetWorkingStep(String workingStepId) throws Exception {
        DataObject dataObject = DataObject.getInstance("sys_state_working_user");
        EntitySet entitySet = dataObject.getTableEntitySet(new Filter("working_step_id", workingStepId));
 
        String wtiterName;
        ContentBuilder result = new ContentBuilder(",");
        for (Entity step : entitySet) {
            wtiterName = step.getString("writer_name");
            
            if (Util.isEmpty(wtiterName)) {
                continue;
            }
            
            result.append(wtiterName);
        }
        
        String writerNames = result.toString();
        
        dataObject = DataObject.getInstance("sys_state_working_step");
        EntitySaver saver = dataObject.createEntitySaver(workingStepId);
        saver.set("writer_name", writerNames);
        
        saver.update();
    }
 
    private void loadStepHistorys() throws Exception {
        DataObject dataObject = DataObject.getInstance("sys_state_working_history");
        histories = dataObject.getTableEntitySet(new Filter("parent_id", masterId), new OrderBy("create_time desc"));
    }
 
    private void insertWorkingSteps(StatePoint statePoint, IOnlineUser user, WorkStep step) throws Exception {
        String machineId = machine.getId();
        ApproveRuntime steps = statePoint.getSteps(user, step);
        
        DataObject stepObject = DataObject.getInstance("sys_state_working_step");
        EntitySet stepSet = stepObject.createTableEntitySet();
        
        DataObject userObject = DataObject.getInstance("sys_state_working_user");
        EntitySet userSet = userObject.createTableEntitySet();
        
        String first = "T";
        
        for (Step oneStep: steps) {
            String id = ID.newValue();
            
            Entity entity = stepSet.append();
            entity.set("id", id);
            entity.set("parent_id", masterId);
            entity.set("machine_id", machine.getId());
            entity.set("doc_id", docId);
            entity.set("point_id", statePoint.getId());
            entity.set("approve_id", oneStep.getParentId());
            entity.set("approve_step_id", oneStep.getId());
            entity.set("name", oneStep.getName());
            entity.set("index_no", oneStep.getIndexNo());
            entity.set("writer_name", oneStep.getWriterNames()); 
            entity.set("is_copy", oneStep.isCopy());
            entity.set("is_active", first);
            entity.set("begin_time", "T".equals(first) ? new Date() : null);
            
            List<StepUser> stepUsers = oneStep.getUsers();
            for (StepUser stepUser: stepUsers) {
                Entity userEntity = userSet.append();
                
                userEntity.set("id", ID.newValue());
                userEntity.set("parent_id", masterId);
                userEntity.set("machine_id", machineId);
                userEntity.set("doc_id", docId);
                userEntity.set("point_id", statePoint.getId());
                userEntity.set("working_step_id", id);
                userEntity.set("user_id", stepUser.getUserId());
                userEntity.set("writer_name", stepUser.getWriterName());
            }
 
            first = "F";
        }
        
        stepObject.insertEntitySet(stepSet);
        userObject.insertEntitySet(userSet);
    }
 
    private void insertOneHistory(WorkingApproveStep step, IOnlineUser user, ApproveOperate operator, String remark) throws Exception {
        String employeeName = user.getEmployeeName();
                
        //4. 插入日志记录
        DataObject dataObject = DataObject.getInstance("sys_state_working_history");
        
        Entity entity = dataObject.createTableEntity(true);
        entity.set("id", ID.newValue());
        entity.set("parent_id", masterId);
        entity.set("machine_id", machine.getId());
        entity.set("doc_id", docId);
        entity.set("point_id", step.getPointId());
        entity.set("step_id", step.getId());
        entity.set("step_name", step.getName());
        entity.set("writer_name", employeeName);
        entity.set("employee_id", user.getEmployeeId());
        entity.set("employee_name", employeeName);
        entity.set("remark", remark);
        entity.set("user_id", user.getId());
        entity.set("user_name", user.getName());
        entity.set("result_code", operator.name());
        entity.set("result_name", operator.getTitle());
        entity.set("create_time", now);
        
        dataObject.insertEntity(entity);        
    }
 
    public WorkingApproveStep getCurrentStep() throws Exception {
        //1. 
        if (!builded) {
            synchronized (this) {
                if (!builded) {
                    init();
                }
            }
        }
        
        //2. 
        if (pos < 0 || pos >= workingSteps.size()) {
            return null;
        }
        
        return workingSteps.get(pos);
    }
    
    private WorkingApproveStep goNextStep() throws Exception {
        //1. 
        if (!builded) {
            synchronized (this) {
                if (!builded) {
                    init();
                }
            }
        }        
        
        //2. 
        pos = pos + 1;
        
        if (pos < 0 || pos >= workingSteps.actualSize()) {
            return null;
        }
        
        return workingSteps.get(pos);
    }
    
    public WorkingApproveStep goPriorStep() throws Exception {
        //1. 
        if (!builded) {
            synchronized (this) {
                if (!builded) {
                    init();
                }
            }
        }        
        
        //2. 
        pos = pos - 1;
        
        if (pos < 0 || pos >= workingSteps.actualSize()) {
            return null;
        }
        
        return workingSteps.get(pos);
    }
 
    public WorkingApproveStep getNextWorkingStep(String operator) {
        StateOperate stateOperate = StateOperate.parse(operator);
        int nextPos = -1;
        if (StateOperate.Commit == stateOperate || StateOperate.toChange == stateOperate || StateOperate.toClose == stateOperate) {
            nextPos = 0;
        }
        else if (StateOperate.StateEnd == stateOperate) {
            nextPos = workingSteps.actualSize() - 1;
        }
        else if (StateOperate.StateFrom == stateOperate) {
            nextPos = -1;
        }
        
        ApproveOperate approveOperate = ApproveOperate.parse(operator);
 
        if (ApproveOperate.Approve == approveOperate) {
            nextPos = pos + 1;
        }
        else if (ApproveOperate.GoEnd == approveOperate) {
            nextPos = workingSteps.actualSize() - 1;
        }
        else if (ApproveOperate.GoHome == approveOperate || ApproveOperate.PullBack == approveOperate) {
            nextPos = -1;
        }
        else if (ApproveOperate.GoBack == approveOperate) {
            nextPos = pos - 1;
        }    
        
        if (nextPos < 0 || nextPos >= workingSteps.actualSize()) {
            return null;
        }
        
        WorkingApproveStep workingStep = workingSteps.get(nextPos);
        if (workingStep == null) {
            return null;
        }
        
        return workingStep;
    }
    
    public List<WorkingApproveStep> getNotifyStep() throws Exception {
        List<WorkingApproveStep> notifySteps = new ArrayList<WorkingApproveStep>();
        
        //1. 
        if (!builded) {
            synchronized (this) {
                if (!builded) {
                    init();
                }
            }
        }
        
        //2. 
        if (pos < 0 && !isWorking()) {
            for (int indexNo = workingSteps.actualSize() - 1; indexNo < workingSteps.size(); indexNo++) {
                WorkingApproveStep step = workingSteps.get(indexNo);
                
                if (step.isCopy()) {
                    notifySteps.add(step);
                }
            }
        }
        
        return notifySteps;
    }
    
    public String getOutStateCode() throws Exception {
        WorkingApproveStep step = getCurrentStep();
        
        if (step == null) {
            return null;
        }
        
        return step.getOutStateCode();
    }
 
    public EntitySet getHistories() {
        return histories;
    }
 
    public boolean isEmpty() {
        return master == null;
    }
 
    public List<WorkingApproveStep> getWorkingSteps() {
        return workingSteps.getList();
    }
 
    public Entity getMaster() {
        return master;
    }
 
    public String getMasterPointId() {
        String pointId = master.getString("point_master_id");
        return pointId;
    }
    
    public String getHostPointId() {
        String pointId = master.getString("point_host_id");
        return pointId;
    }
    
    public String getReferPointId() {
        String pointId = master.getString("point_refer_id");
        return pointId;
    }
 
    public boolean isWorking() {
        return master.getBoolean("is_working", false);
    }
 
    @Override
    public void writeJSON(IJSONWriter writer) {
        writer.beginObject();
        
        //1. steps
        if (workingSteps == null) {
            writer.writeNull("steps");
        }
        else {
            writer.beginArray("steps");
            workingSteps.writeJSONBody(writer);
            writer.endArray();
        }
        
        //2. histories
        if (histories == null) {
            writer.writeNull("histories");
        }
        else {    
            writer.beginArray("histories");
            histories.writeJSONBody(writer);
            writer.endArray();
        }
        
        writer.endObject();
    }
 
}