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package com.iailab.module.bpm.framework.flowable.core.util; |
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import com.iailab.framework.tenant.core.context.TenantContextHolder; |
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import com.iailab.module.bpm.framework.flowable.core.enums.BpmConstants; |
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import org.flowable.common.engine.api.delegate.Expression; |
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import org.flowable.common.engine.api.variable.VariableContainer; |
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import org.flowable.common.engine.impl.el.ExpressionManager; |
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import org.flowable.common.engine.impl.identity.Authentication; |
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import org.flowable.engine.ProcessEngineConfiguration; |
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import org.flowable.engine.history.HistoricProcessInstance; |
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import org.flowable.engine.impl.cfg.ProcessEngineConfigurationImpl; |
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import org.flowable.engine.impl.util.CommandContextUtil; |
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import org.flowable.engine.runtime.ProcessInstance; |
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import org.flowable.task.api.TaskInfo; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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/** |
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* Flowable 相关的工具方法 |
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* |
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* @author iailab |
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*/ |
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public class FlowableUtils { |
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// ========== User 相关的工具方法 ========== |
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public static void setAuthenticatedUserId(Long userId) { |
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Authentication.setAuthenticatedUserId(String.valueOf(userId)); |
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} |
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public static void clearAuthenticatedUserId() { |
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Authentication.setAuthenticatedUserId(null); |
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} |
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public static String getTenantId() { |
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Long tenantId = TenantContextHolder.getTenantId(); |
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return tenantId != null ? String.valueOf(tenantId) : ProcessEngineConfiguration.NO_TENANT_ID; |
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} |
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// ========== Execution 相关的工具方法 ========== |
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/** |
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* 格式化多实例(并签、或签)的 collectionVariable 变量(多实例对应的多审批人列表) |
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* |
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* @param activityId 活动编号 |
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* @return collectionVariable 变量 |
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*/ |
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public static String formatExecutionCollectionVariable(String activityId) { |
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return activityId + "_assignees"; |
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} |
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/** |
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* 格式化多实例(并签、或签)的 collectionElementVariable 变量(当前实例对应的一个审批人) |
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* |
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* @param activityId 活动编号 |
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* @return collectionElementVariable 变量 |
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*/ |
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public static String formatExecutionCollectionElementVariable(String activityId) { |
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return activityId + "_assignee"; |
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} |
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// ========== ProcessInstance 相关的工具方法 ========== |
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public static Integer getProcessInstanceStatus(ProcessInstance processInstance) { |
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return getProcessInstanceStatus(processInstance.getProcessVariables()); |
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} |
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public static Integer getProcessInstanceStatus(HistoricProcessInstance processInstance) { |
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return getProcessInstanceStatus(processInstance.getProcessVariables()); |
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} |
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/** |
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* 获得流程实例的状态 |
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* |
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* @param processVariables 流程实例的 variables |
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* @return 状态 |
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*/ |
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private static Integer getProcessInstanceStatus(Map<String, Object> processVariables) { |
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return (Integer) processVariables.get(BpmConstants.PROCESS_INSTANCE_VARIABLE_STATUS); |
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} |
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/** |
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* 获得流程实例的表单 |
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* |
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* @param processInstance 流程实例 |
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* @return 表单 |
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*/ |
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public static Map<String, Object> getProcessInstanceFormVariable(HistoricProcessInstance processInstance) { |
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Map<String, Object> formVariables = new HashMap<>(processInstance.getProcessVariables()); |
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filterProcessInstanceFormVariable(formVariables); |
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return formVariables; |
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} |
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/** |
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* 过滤流程实例的表单 |
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* |
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* 为什么要过滤?目前使用 processVariables 存储所有流程实例的拓展字段,需要过滤掉一部分的系统字段,从而实现表单的展示 |
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* |
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* @param processVariables 流程实例的 variables |
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* @return 过滤后的表单 |
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*/ |
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public static Map<String, Object> filterProcessInstanceFormVariable(Map<String, Object> processVariables) { |
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processVariables.remove(BpmConstants.PROCESS_INSTANCE_VARIABLE_STATUS); |
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return processVariables; |
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} |
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/** |
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* 获得流程实例的发起用户选择的审批人 Map |
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* @param processInstance 流程实例 |
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* @return 发起用户选择的审批人 Map |
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*/ |
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@SuppressWarnings("unchecked") |
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public static Map<String, List<Long>> getStartUserSelectAssignees(ProcessInstance processInstance) { |
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return (Map<String, List<Long>>) processInstance.getProcessVariables().get( |
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BpmConstants.PROCESS_INSTANCE_VARIABLE_START_USER_SELECT_ASSIGNEES); |
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} |
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// ========== Task 相关的工具方法 ========== |
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/** |
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* 获得任务的状态 |
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* |
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* @param task 任务 |
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* @return 状态 |
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*/ |
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public static Integer getTaskStatus(TaskInfo task) { |
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return (Integer) task.getTaskLocalVariables().get(BpmConstants.TASK_VARIABLE_STATUS); |
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} |
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/** |
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* 获得任务的审批原因 |
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* |
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* @param task 任务 |
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* @return 审批原因 |
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*/ |
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public static String getTaskReason(TaskInfo task) { |
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return (String) task.getTaskLocalVariables().get(BpmConstants.TASK_VARIABLE_REASON); |
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} |
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/** |
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* 获得任务的表单 |
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* |
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* @param task 任务 |
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* @return 表单 |
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*/ |
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public static Map<String, Object> getTaskFormVariable(TaskInfo task) { |
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Map<String, Object> formVariables = new HashMap<>(task.getTaskLocalVariables()); |
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filterTaskFormVariable(formVariables); |
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return formVariables; |
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} |
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/** |
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* 过滤任务的表单 |
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* |
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* 为什么要过滤?目前使用 taskLocalVariables 存储所有任务的拓展字段,需要过滤掉一部分的系统字段,从而实现表单的展示 |
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* |
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* @param taskLocalVariables 任务的 taskLocalVariables |
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* @return 过滤后的表单 |
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*/ |
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public static Map<String, Object> filterTaskFormVariable(Map<String, Object> taskLocalVariables) { |
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taskLocalVariables.remove(BpmConstants.TASK_VARIABLE_STATUS); |
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taskLocalVariables.remove(BpmConstants.TASK_VARIABLE_REASON); |
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return taskLocalVariables; |
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} |
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// ========== Expression 相关的工具方法 ========== |
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public static Object getExpressionValue(VariableContainer variableContainer, String expressionString) { |
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ProcessEngineConfigurationImpl processEngineConfiguration = CommandContextUtil.getProcessEngineConfiguration(); |
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assert processEngineConfiguration != null; |
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ExpressionManager expressionManager = processEngineConfiguration.getExpressionManager(); |
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assert expressionManager != null; |
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Expression expression = expressionManager.createExpression(expressionString); |
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return expression.getValue(variableContainer); |
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} |
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} |