do not error out when there is no config
[so.git] / bpmn / so-bpmn-tasks / src / main / java / org / onap / so / bpmn / infrastructure / workflow / tasks / WorkflowActionBBTasks.java
1 /*-
2  * ============LICENSE_START=======================================================
3  * ONAP - SO
4  * ================================================================================
5  * Copyright (C) 2017 - 2018 AT&T Intellectual Property. All rights reserved.
6  * ================================================================================
7  * Licensed under the Apache License, Version 2.0 (the "License");
8  * you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at
10  * 
11  *      http://www.apache.org/licenses/LICENSE-2.0
12  * 
13  * Unless required by applicable law or agreed to in writing, software
14  * distributed under the License is distributed on an "AS IS" BASIS,
15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16  * See the License for the specific language governing permissions and
17  * limitations under the License.
18  * ============LICENSE_END=========================================================
19  */
20
21 package org.onap.so.bpmn.infrastructure.workflow.tasks;
22
23 import java.sql.Timestamp;
24 import java.util.ArrayList;
25 import java.util.List;
26 import java.util.Optional;
27 import java.util.UUID;
28
29 import javax.persistence.EntityNotFoundException;
30
31 import org.camunda.bpm.engine.delegate.DelegateExecution;
32 import org.onap.aai.domain.yang.Vnfc;
33 import org.onap.so.bpmn.common.workflow.context.WorkflowCallbackResponse;
34 import org.onap.so.bpmn.common.workflow.context.WorkflowContextHolder;
35 import org.onap.so.bpmn.servicedecomposition.entities.BuildingBlock;
36 import org.onap.so.bpmn.servicedecomposition.entities.ConfigurationResourceKeys;
37 import org.onap.so.bpmn.servicedecomposition.entities.ExecuteBuildingBlock;
38 import org.onap.so.bpmn.servicedecomposition.entities.WorkflowResourceIds;
39 import org.onap.so.bpmn.servicedecomposition.tasks.BBInputSetupUtils;
40 import org.onap.so.client.aai.AAIObjectType;
41 import org.onap.so.client.aai.entities.AAIResultWrapper;
42 import org.onap.so.client.aai.entities.Relationships;
43 import org.onap.so.client.aai.entities.uri.AAIResourceUri;
44 import org.onap.so.client.aai.entities.uri.AAIUriFactory;
45 import org.onap.so.client.exception.ExceptionBuilder;
46 import org.onap.so.db.catalog.beans.CvnfcCustomization;
47 import org.onap.so.db.catalog.beans.VnfVfmoduleCvnfcConfigurationCustomization;
48 import org.onap.so.db.catalog.client.CatalogDbClient;
49 import org.onap.so.db.request.beans.InfraActiveRequests;
50 import org.onap.so.db.request.client.RequestsDbClient;
51 import org.onap.so.serviceinstancebeans.RequestReferences;
52 import org.onap.so.serviceinstancebeans.ServiceInstancesResponse;
53 import org.slf4j.Logger;
54 import org.slf4j.LoggerFactory;
55 import org.springframework.beans.factory.annotation.Autowired;
56 import org.springframework.core.env.Environment;
57 import org.springframework.stereotype.Component;
58
59 import com.fasterxml.jackson.core.JsonProcessingException;
60 import com.fasterxml.jackson.databind.ObjectMapper;
61
62 @Component
63 public class WorkflowActionBBTasks {
64
65         private static final String G_CURRENT_SEQUENCE = "gCurrentSequence";
66         private static final String G_REQUEST_ID = "mso-request-id";
67         private static final String G_ALACARTE = "aLaCarte";
68         private static final String G_ACTION = "requestAction";
69         private static final String RETRY_COUNT = "retryCount";
70         private static final String FABRIC_CONFIGURATION = "FabricConfiguration";
71         private static final String ASSIGN_FABRIC_CONFIGURATION_BB = "AssignFabricConfigurationBB";
72         private static final String ACTIVATE_FABRIC_CONFIGURATION_BB = "ActivateFabricConfigurationBB";
73         protected String maxRetries = "mso.rainyDay.maxRetries";
74         private static final Logger logger = LoggerFactory.getLogger(WorkflowActionBBTasks.class);
75
76         @Autowired
77         private RequestsDbClient requestDbclient;
78         @Autowired
79         private WorkflowAction workflowAction;
80         @Autowired
81         private WorkflowActionBBFailure workflowActionBBFailure;
82         @Autowired
83         private Environment environment;
84         @Autowired
85         private BBInputSetupUtils bbInputSetupUtils;
86         @Autowired
87         private CatalogDbClient catalogDbClient;
88         
89         public void selectBB(DelegateExecution execution) {
90                 List<ExecuteBuildingBlock> flowsToExecute = (List<ExecuteBuildingBlock>) execution
91                                 .getVariable("flowsToExecute");
92                 execution.setVariable("MacroRollback", false);
93                 int currentSequence = (int) execution.getVariable(G_CURRENT_SEQUENCE);
94                 ExecuteBuildingBlock ebb = flowsToExecute.get(currentSequence);
95                 boolean homing = (boolean) execution.getVariable("homing");
96                 boolean calledHoming = (boolean) execution.getVariable("calledHoming");
97                 if (homing && !calledHoming) {
98                         if (ebb.getBuildingBlock().getBpmnFlowName().equals("AssignVnfBB")) {
99                                 ebb.setHoming(true);
100                                 execution.setVariable("calledHoming", true);
101                         }
102                 } else {
103                         ebb.setHoming(false);
104                 }
105                 execution.setVariable("buildingBlock", ebb);
106                 currentSequence++;
107                 if (currentSequence >= flowsToExecute.size()) {
108                         execution.setVariable("completed", true);
109                 } else {
110                         execution.setVariable("completed", false);
111                 }
112                 execution.setVariable(G_CURRENT_SEQUENCE, currentSequence);
113         }
114         
115         public void updateFlowStatistics(DelegateExecution execution) {
116                 try{
117                         int currentSequence = (int) execution.getVariable(G_CURRENT_SEQUENCE);
118                         if(currentSequence > 1) {
119                                 InfraActiveRequests request = this.getUpdatedRequest(execution, currentSequence);
120                                 requestDbclient.updateInfraActiveRequests(request);
121                         }
122                 }catch (Exception ex){
123                         logger.warn("Bpmn Flow Statistics was unable to update Request Db with the new completion percentage. Competion percentage may be invalid.");
124                 }
125         }
126
127         protected InfraActiveRequests getUpdatedRequest(DelegateExecution execution, int currentSequence) {
128                 List<ExecuteBuildingBlock> flowsToExecute = (List<ExecuteBuildingBlock>) execution
129                                 .getVariable("flowsToExecute");
130                 String requestId = (String) execution.getVariable(G_REQUEST_ID);
131                 InfraActiveRequests request = requestDbclient.getInfraActiveRequestbyRequestId(requestId);
132                 ExecuteBuildingBlock completedBB = flowsToExecute.get(currentSequence - 2);
133                 ExecuteBuildingBlock nextBB = flowsToExecute.get(currentSequence - 1);
134                 int completedBBs = currentSequence - 1;
135                 int totalBBs = flowsToExecute.size();
136                 int remainingBBs = totalBBs - completedBBs;
137                 String statusMessage = this.getStatusMessage(completedBB.getBuildingBlock().getBpmnFlowName(), 
138                                 nextBB.getBuildingBlock().getBpmnFlowName(), completedBBs, remainingBBs);
139                 Long percentProgress = this.getPercentProgress(completedBBs, totalBBs);
140                 request.setFlowStatus(statusMessage);
141                 request.setProgress(percentProgress);
142                 request.setLastModifiedBy("CamundaBPMN");
143                 return request;
144         }
145         
146         protected Long getPercentProgress(int completedBBs, int totalBBs) {
147                 double ratio = (completedBBs / (totalBBs * 1.0));
148                 int percentProgress = (int) (ratio * 95);
149                 return new Long(percentProgress + 5);
150         }
151         
152         protected String getStatusMessage(String completedBB, String nextBB, int completedBBs, int remainingBBs) {
153                 return "Execution of " + completedBB + " has completed successfully, next invoking " + nextBB
154                                 + " (Execution Path progress: BBs completed = " + completedBBs + "; BBs remaining = " + remainingBBs
155                                 + ").";
156         }
157
158         public void sendSyncAck(DelegateExecution execution) {
159                 final String requestId = (String) execution.getVariable(G_REQUEST_ID);
160                 final String resourceId = (String) execution.getVariable("resourceId");
161                 ServiceInstancesResponse serviceInstancesResponse = new ServiceInstancesResponse();
162                 RequestReferences requestRef = new RequestReferences();
163                 requestRef.setInstanceId(resourceId);
164                 requestRef.setRequestId(requestId);
165                 serviceInstancesResponse.setRequestReferences(requestRef);
166                 ObjectMapper mapper = new ObjectMapper();
167                 String jsonRequest = "";
168                 try {
169                         jsonRequest = mapper.writeValueAsString(serviceInstancesResponse);
170                 } catch (JsonProcessingException e) {
171                         workflowAction.buildAndThrowException(execution,
172                                         "Could not marshall ServiceInstancesRequest to Json string to respond to API Handler.", e);
173                 }
174                 WorkflowCallbackResponse callbackResponse = new WorkflowCallbackResponse();
175                 callbackResponse.setStatusCode(200);
176                 callbackResponse.setMessage("Success");
177                 callbackResponse.setResponse(jsonRequest);
178                 String processKey = execution.getProcessEngineServices().getRepositoryService()
179                                 .getProcessDefinition(execution.getProcessDefinitionId()).getKey();
180                 WorkflowContextHolder.getInstance().processCallback(processKey, execution.getProcessInstanceId(), requestId,
181                                 callbackResponse);
182                 logger.info("Successfully sent sync ack.");
183                 updateInstanceId(execution);
184         }
185
186         public void sendErrorSyncAck(DelegateExecution execution) {
187                 final String requestId = (String) execution.getVariable(G_REQUEST_ID);
188                 try {
189                         ExceptionBuilder exceptionBuilder = new ExceptionBuilder();
190                         String errorMsg = (String) execution.getVariable("WorkflowActionErrorMessage");
191                         if (errorMsg == null) {
192                                 errorMsg = "WorkflowAction failed unexpectedly.";
193                         }
194                         String processKey = exceptionBuilder.getProcessKey(execution);
195                         String buildworkflowException = "<aetgt:WorkflowException xmlns:aetgt=\"http://org.onap/so/workflow/schema/v1\"><aetgt:ErrorMessage>"
196                                         + errorMsg
197                                         + "</aetgt:ErrorMessage><aetgt:ErrorCode>7000</aetgt:ErrorCode></aetgt:WorkflowException>";
198                         WorkflowCallbackResponse callbackResponse = new WorkflowCallbackResponse();
199                         callbackResponse.setStatusCode(500);
200                         callbackResponse.setMessage("Fail");
201                         callbackResponse.setResponse(buildworkflowException);
202                         WorkflowContextHolder.getInstance().processCallback(processKey, execution.getProcessInstanceId(), requestId,
203                                         callbackResponse);
204                         execution.setVariable("sentSyncResponse", true);
205                 } catch (Exception ex) {
206                         logger.error(" Sending Sync Error Activity Failed. {}"  , ex.getMessage(), ex);
207                 }
208         }
209
210         public void updateRequestStatusToComplete(DelegateExecution execution) {
211                 try{
212                         final String requestId = (String) execution.getVariable(G_REQUEST_ID);
213                         InfraActiveRequests request = requestDbclient.getInfraActiveRequestbyRequestId(requestId);
214                         final String action = (String) execution.getVariable(G_ACTION);
215                         final boolean aLaCarte = (boolean) execution.getVariable(G_ALACARTE);
216                         final String resourceName = (String) execution.getVariable("resourceName");
217                         String macroAction = "";
218                         if (aLaCarte) {
219                                 macroAction = "ALaCarte-" + resourceName + "-" + action + " request was executed correctly.";
220                         } else {
221                                 macroAction = "Macro-" + resourceName + "-" + action + " request was executed correctly.";
222                         }
223                         execution.setVariable("finalStatusMessage", macroAction);
224                         Timestamp endTime = new Timestamp(System.currentTimeMillis());
225                         request.setEndTime(endTime);
226                         request.setFlowStatus("Successfully completed all Building Blocks");
227                         request.setStatusMessage(macroAction);
228                         request.setProgress(Long.valueOf(100));
229                         request.setRequestStatus("COMPLETE");
230                         request.setLastModifiedBy("CamundaBPMN");
231                         requestDbclient.updateInfraActiveRequests(request);
232                 }catch (Exception ex) {
233                         workflowAction.buildAndThrowException(execution, "Error Updating Request Database", ex);
234                 }
235         }
236
237         public void checkRetryStatus(DelegateExecution execution) {
238                 String handlingCode = (String) execution.getVariable("handlingCode");
239                 String requestId = (String) execution.getVariable(G_REQUEST_ID);
240                 String retryDuration = (String) execution.getVariable("RetryDuration");
241                 int retryCount = (int) execution.getVariable(RETRY_COUNT);
242                 int envMaxRetries;
243                 try{
244                         envMaxRetries = Integer.parseInt(this.environment.getProperty(maxRetries));     
245                 } catch (Exception ex) {
246                         logger.error("Could not read maxRetries from config file. Setting max to 5 retries");
247                         envMaxRetries = 5;
248                 }
249                 int nextCount = retryCount +1;
250                 if (handlingCode.equals("Retry")){
251                         workflowActionBBFailure.updateRequestErrorStatusMessage(execution);
252                         try{
253                                 InfraActiveRequests request = requestDbclient.getInfraActiveRequestbyRequestId(requestId);
254                                 request.setRetryStatusMessage("Retry " + nextCount + "/" + envMaxRetries + " will be started in " + retryDuration);
255                                 requestDbclient.updateInfraActiveRequests(request); 
256                         } catch(Exception ex){
257                                 logger.warn("Failed to update Request Db Infra Active Requests with Retry Status",ex);
258                         }
259                         if(retryCount<envMaxRetries){
260                                 int currSequence = (int) execution.getVariable("gCurrentSequence");
261                                 execution.setVariable("gCurrentSequence", currSequence-1);
262                                 execution.setVariable(RETRY_COUNT, nextCount);
263                         }else{
264                                 workflowAction.buildAndThrowException(execution, "Exceeded maximum retries. Ending flow with status Abort");
265                         }
266                 }else{
267                         execution.setVariable(RETRY_COUNT, 0);
268                 }
269         }
270
271         /**
272          * Rollback will only handle Create/Activate/Assign Macro flows. Execute
273          * layer will rollback the flow its currently working on.
274          */
275         public void rollbackExecutionPath(DelegateExecution execution) {
276                 if(!(boolean)execution.getVariable("isRollback")){
277                         List<ExecuteBuildingBlock> flowsToExecute = (List<ExecuteBuildingBlock>) execution
278                                         .getVariable("flowsToExecute");
279                         List<ExecuteBuildingBlock> rollbackFlows = new ArrayList();
280                         int currentSequence = (int) execution.getVariable(G_CURRENT_SEQUENCE);
281                         int listSize = flowsToExecute.size();
282                         for (int i = listSize - 1; i >= 0; i--) {
283                                 if (i > currentSequence - 1) {
284                                         flowsToExecute.remove(i);
285                                 } else {
286                                         String flowName = flowsToExecute.get(i).getBuildingBlock().getBpmnFlowName();
287                                         if (flowName.contains("Assign")) {
288                                                 flowName = "Unassign" + flowName.substring(6, flowName.length());
289                                         } else if (flowName.contains("Create")) {
290                                                 flowName = "Delete" + flowName.substring(6, flowName.length());
291                                         } else if (flowName.contains("Activate")) {
292                                                 flowName = "Deactivate" + flowName.substring(8, flowName.length());
293                                         }else{
294                                                 continue;
295                                         }
296                                         flowsToExecute.get(i).getBuildingBlock().setBpmnFlowName(flowName);
297                                         rollbackFlows.add(flowsToExecute.get(i));
298                                 }
299                         }
300                         
301                         String handlingCode = (String) execution.getVariable("handlingCode");
302                         List<ExecuteBuildingBlock> rollbackFlowsFiltered = new ArrayList<>();
303                         rollbackFlowsFiltered.addAll(rollbackFlows);
304                         if(handlingCode.equals("RollbackToAssigned") || handlingCode.equals("RollbackToCreated")){
305                                 for(int i = 0; i<rollbackFlows.size(); i++){
306                                         if(rollbackFlows.get(i).getBuildingBlock().getBpmnFlowName().contains("Unassign")){
307                                                 rollbackFlowsFiltered.remove(rollbackFlows.get(i));
308                                         } else if(rollbackFlows.get(i).getBuildingBlock().getBpmnFlowName().contains("Delete") && handlingCode.equals("RollbackToCreated")) {
309                                                 rollbackFlowsFiltered.remove(rollbackFlows.get(i));
310                                         }
311                                 }
312                         }
313                         
314                         workflowActionBBFailure.updateRequestErrorStatusMessage(execution);
315                         
316                         if (rollbackFlows.isEmpty())
317                                 execution.setVariable("isRollbackNeeded", false);
318                         else
319                                 execution.setVariable("isRollbackNeeded", true);
320                         execution.setVariable("flowsToExecute", rollbackFlowsFiltered);
321                         execution.setVariable("handlingCode", "PreformingRollback");
322                         execution.setVariable("isRollback", true);
323                         execution.setVariable("gCurrentSequence", 0);
324                         execution.setVariable(RETRY_COUNT, 0);
325                 }else{
326                         workflowAction.buildAndThrowException(execution, "Rollback has already been called. Cannot rollback a request that is currently in the rollback state.");
327                 }
328         }
329         
330         protected void updateInstanceId(DelegateExecution execution){
331                 try{
332                         String requestId = (String) execution.getVariable(G_REQUEST_ID);
333                         String resourceId = (String) execution.getVariable("resourceId");
334                         WorkflowType resourceType = (WorkflowType) execution.getVariable("resourceType");
335                         InfraActiveRequests request = requestDbclient.getInfraActiveRequestbyRequestId(requestId);
336                         if(resourceType == WorkflowType.SERVICE){
337                                 request.setServiceInstanceId(resourceId);
338                         }else if(resourceType == WorkflowType.VNF){
339                                 request.setVnfId(resourceId);
340                         }else if(resourceType == WorkflowType.VFMODULE){
341                                 request.setVfModuleId(resourceId);
342                         }else if(resourceType == WorkflowType.VOLUMEGROUP){
343                                 request.setVolumeGroupId(resourceId);
344                         }else if(resourceType == WorkflowType.NETWORK){
345                                 request.setNetworkId(resourceId);
346                         }else if(resourceType == WorkflowType.CONFIGURATION){
347                                 request.setConfigurationId(resourceId);
348                         }else if(resourceType == WorkflowType.INSTANCE_GROUP){
349                                 request.setInstanceGroupId(resourceId);
350                         }
351                         requestDbclient.updateInfraActiveRequests(request);
352                 }catch(Exception ex){
353                         workflowAction.buildAndThrowException(execution, "Failed to update Request db with instanceId");
354                 }
355         }
356         
357         public void postProcessingExecuteBB(DelegateExecution execution) {
358                 List<ExecuteBuildingBlock> flowsToExecute = (List<ExecuteBuildingBlock>) execution
359                                 .getVariable("flowsToExecute");
360                 String handlingCode = (String) execution.getVariable("handlingCode");
361                 final boolean aLaCarte = (boolean) execution.getVariable(G_ALACARTE);
362                 int currentSequence = (int) execution.getVariable(G_CURRENT_SEQUENCE);
363                 ExecuteBuildingBlock ebb = flowsToExecute.get(currentSequence - 1);
364                 String bbFlowName = ebb.getBuildingBlock().getBpmnFlowName();
365                 if(bbFlowName.equalsIgnoreCase("ActivateVfModuleBB") && aLaCarte && handlingCode.equalsIgnoreCase("Success")) {
366                         postProcessingExecuteBBActivateVfModule(execution, ebb, flowsToExecute);
367                 }
368         }
369         
370         protected void postProcessingExecuteBBActivateVfModule(DelegateExecution execution, 
371                         ExecuteBuildingBlock ebb, List<ExecuteBuildingBlock> flowsToExecute) {
372                 try {
373                         String vnfId = ebb.getWorkflowResourceIds().getVnfId();
374                         String vfModuleId = ebb.getResourceId();
375                         ebb.getWorkflowResourceIds().setVfModuleId(vfModuleId);
376                         String vnfCustomizationUUID = bbInputSetupUtils.getAAIGenericVnf(vnfId).getModelCustomizationId();
377                         String vfModuleCustomizationUUID = bbInputSetupUtils.getAAIVfModule(vnfId, vfModuleId).getModelCustomizationId();
378                         List<Vnfc> vnfcs = workflowAction.getRelatedResourcesInVfModule(vnfId, vfModuleId, Vnfc.class, AAIObjectType.VNFC);
379                         for(Vnfc vnfc : vnfcs) {
380                                 String modelCustomizationId = vnfc.getModelCustomizationId();
381                                 VnfVfmoduleCvnfcConfigurationCustomization fabricConfig = 
382                                                 catalogDbClient.getVnfVfmoduleCvnfcConfigurationCustomizationByVnfCustomizationUuidAndVfModuleCustomizationUuidAndCvnfcCustomizationUuid(vnfCustomizationUUID, vfModuleCustomizationUUID, modelCustomizationId);
383                                 if(fabricConfig != null && fabricConfig.getConfigurationResource() != null 
384                                                 && fabricConfig.getConfigurationResource().getToscaNodeType() != null 
385                                                 && fabricConfig.getConfigurationResource().getToscaNodeType().contains(FABRIC_CONFIGURATION)) {
386                                         String configurationId = UUID.randomUUID().toString();
387                                         ConfigurationResourceKeys configurationResourceKeys = new ConfigurationResourceKeys();
388                                         configurationResourceKeys.setCvnfcCustomizationUUID(modelCustomizationId);
389                                         configurationResourceKeys.setVfModuleCustomizationUUID(vfModuleCustomizationUUID);
390                                         configurationResourceKeys.setVnfResourceCustomizationUUID(vnfCustomizationUUID);
391                                         configurationResourceKeys.setVnfcName(vnfc.getVnfcName());
392                                         ExecuteBuildingBlock assignConfigBB = getExecuteBBForConfig(ASSIGN_FABRIC_CONFIGURATION_BB, ebb, configurationId, configurationResourceKeys);
393                                         ExecuteBuildingBlock activateConfigBB = getExecuteBBForConfig(ACTIVATE_FABRIC_CONFIGURATION_BB, ebb, configurationId, configurationResourceKeys);
394                                         flowsToExecute.add(assignConfigBB);
395                                         flowsToExecute.add(activateConfigBB);
396                                         execution.setVariable("flowsToExecute", flowsToExecute);
397                                         execution.setVariable("completed", false);
398                                 } else {
399                                         logger.debug("No cvnfcCustomization found for customizationId: " + modelCustomizationId);
400                                 }
401                         }
402                 } catch (EntityNotFoundException e) {
403                         logger.debug(e.getMessage() + " Will not be running Fabric Config Building Blocks");
404                 } catch (Exception e) {
405                         String errorMessage = "Error occurred in post processing of Vf Module create";
406                         execution.setVariable("handlingCode", "RollbackToCreated");
407                         execution.setVariable("WorkflowActionErrorMessage", errorMessage);
408                         logger.error(errorMessage, e);
409                 }
410         }
411         
412         protected ExecuteBuildingBlock getExecuteBBForConfig(String bbName, ExecuteBuildingBlock ebb, String configurationId, ConfigurationResourceKeys configurationResourceKeys) {
413                 ExecuteBuildingBlock configBB = new ExecuteBuildingBlock();
414                 BuildingBlock buildingBlock = new BuildingBlock();
415                 buildingBlock.setBpmnFlowName(bbName);
416                 buildingBlock.setMsoId(UUID.randomUUID().toString());
417                 configBB.setaLaCarte(ebb.isaLaCarte());
418                 configBB.setApiVersion(ebb.getApiVersion());
419                 configBB.setRequestAction(ebb.getRequestAction());
420                 configBB.setVnfType(ebb.getVnfType());
421                 configBB.setRequestId(ebb.getRequestId());
422                 configBB.setRequestDetails(ebb.getRequestDetails());
423                 configBB.setBuildingBlock(buildingBlock);
424                 WorkflowResourceIds workflowResourceIds = ebb.getWorkflowResourceIds();
425                 workflowResourceIds.setConfigurationId(configurationId);
426                 configBB.setWorkflowResourceIds(workflowResourceIds);
427                 configBB.setConfigurationResourceKeys(configurationResourceKeys);
428                 return configBB;
429         }
430 }