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  | 16 |  |  package org.kuali.rice.kew.engine.node; | 
  | 17 |  |   | 
  | 18 |  |  import java.util.ArrayList; | 
  | 19 |  |  import java.util.HashSet; | 
  | 20 |  |  import java.util.Iterator; | 
  | 21 |  |  import java.util.List; | 
  | 22 |  |  import java.util.Set; | 
  | 23 |  |   | 
  | 24 |  |  import org.apache.commons.collections.CollectionUtils; | 
  | 25 |  |  import org.kuali.rice.core.framework.parameter.ParameterService; | 
  | 26 |  |  import org.kuali.rice.core.framework.services.CoreFrameworkServiceLocator; | 
  | 27 |  |  import org.kuali.rice.kew.actionrequest.ActionRequestValue; | 
  | 28 |  |  import org.kuali.rice.kew.engine.RouteContext; | 
  | 29 |  |  import org.kuali.rice.kew.engine.RouteHelper; | 
  | 30 |  |  import org.kuali.rice.kew.exception.RouteManagerException; | 
  | 31 |  |  import org.kuali.rice.kew.api.exception.WorkflowException; | 
  | 32 |  |  import org.kuali.rice.kew.routeheader.DocumentRouteHeaderValue; | 
  | 33 |  |  import org.kuali.rice.kew.routemodule.RouteModule; | 
  | 34 |  |  import org.kuali.rice.kew.service.KEWServiceLocator; | 
  | 35 |  |  import org.kuali.rice.kew.util.ClassDumper; | 
  | 36 |  |  import org.kuali.rice.kew.api.KewApiConstants; | 
  | 37 |  |  import org.kuali.rice.krad.util.KRADConstants; | 
  | 38 |  |   | 
  | 39 |  |   | 
  | 40 |  |   | 
  | 41 |  |   | 
  | 42 |  |   | 
  | 43 |  |   | 
  | 44 |  |   | 
  | 45 | 0 |  public class RequestsNode extends RequestActivationNode { | 
  | 46 |  |   | 
  | 47 | 0 |          private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger | 
  | 48 |  |                          .getLogger( RequestsNode.class ); | 
  | 49 |  |   | 
  | 50 |  |          protected static final String SUPPRESS_POLICY_ERRORS_KEY = "_suppressPolicyErrorsRequestActivationNode"; | 
  | 51 |  |   | 
  | 52 |  |          public final SimpleResult process(RouteContext routeContext, RouteHelper routeHelper) | 
  | 53 |  |                          throws Exception { | 
  | 54 |  |                  try { | 
  | 55 | 0 |              if (processCustom(routeContext, routeHelper)) { | 
  | 56 | 0 |                  return super.process(routeContext, routeHelper); | 
  | 57 |  |              } | 
  | 58 | 0 |              RouteNodeInstance nodeInstance = routeContext.getNodeInstance(); | 
  | 59 | 0 |              boolean isInitial = nodeInstance.isInitial(); | 
  | 60 | 0 |              int currentIteration = 0; | 
  | 61 | 0 |              List<ActionRequestValue> requestsGenerated = new ArrayList<ActionRequestValue>(); | 
  | 62 |  |              while (true) { | 
  | 63 | 0 |                  detectRunawayProcess(routeContext, currentIteration++); | 
  | 64 | 0 |                  if (isInitial) { | 
  | 65 | 0 |                      requestsGenerated = generateRequests(routeContext); | 
  | 66 |  |                       | 
  | 67 |  |                       | 
  | 68 | 0 |                      isInitial = false; | 
  | 69 |  |                  } | 
  | 70 | 0 |                  SimpleResult simpleResult = super.process(routeContext, routeHelper); | 
  | 71 | 0 |                  if (simpleResult.isComplete()) { | 
  | 72 | 0 |                      RouteModule routeModule = getRouteModule(routeContext); | 
  | 73 | 0 |                      boolean moreRequestsAvailable = routeModule.isMoreRequestsAvailable(routeContext); | 
  | 74 | 0 |                      if (!moreRequestsAvailable) { | 
  | 75 | 0 |                          applyPoliciesOnExit(requestsGenerated, routeContext); | 
  | 76 | 0 |                          return simpleResult; | 
  | 77 |  |                      } else { | 
  | 78 | 0 |                          requestsGenerated = generateRequests(routeContext); | 
  | 79 |  |                      } | 
  | 80 | 0 |                  } else { | 
  | 81 | 0 |                      return simpleResult; | 
  | 82 |  |                  } | 
  | 83 | 0 |              } | 
  | 84 | 0 |                  } catch ( RouteManagerException ex ) { | 
  | 85 |  |                           | 
  | 86 | 0 |                          throw ex; | 
  | 87 | 0 |                  } catch ( Exception e ) { | 
  | 88 | 0 |                          LOG.error( "Caught exception routing", e ); | 
  | 89 | 0 |                          throw new RouteManagerException( e.getMessage(), e, routeContext ); | 
  | 90 |  |                  } | 
  | 91 |  |          } | 
  | 92 |  |   | 
  | 93 |  |      protected List<ActionRequestValue> generateRequests(RouteContext routeContext) throws Exception { | 
  | 94 | 0 |          DocumentRouteHeaderValue document = routeContext.getDocument(); | 
  | 95 | 0 |                  RouteNodeInstance nodeInstance = routeContext.getNodeInstance(); | 
  | 96 | 0 |                  RouteNode node = nodeInstance.getRouteNode(); | 
  | 97 | 0 |          if (LOG.isDebugEnabled()) { | 
  | 98 | 0 |              LOG.debug("RouteHeader info inside routing loop\n" + ClassDumper.dumpFields(document)); | 
  | 99 | 0 |              LOG.debug("Looking for new actionRequests - routeLevel: " + node.getRouteNodeName()); | 
  | 100 |  |          } | 
  | 101 | 0 |          boolean suppressPolicyErrors = isSupressingPolicyErrors(routeContext); | 
  | 102 | 0 |          List<ActionRequestValue> requests = getNewActionRequests(routeContext); | 
  | 103 |  |           | 
  | 104 | 0 |          if (!suppressPolicyErrors) { | 
  | 105 | 0 |              verifyFinalApprovalRequest(document, requests, nodeInstance, routeContext); | 
  | 106 |  |          } | 
  | 107 | 0 |          return requests; | 
  | 108 |  |      } | 
  | 109 |  |   | 
  | 110 |  |       | 
  | 111 |  |   | 
  | 112 |  |   | 
  | 113 |  |   | 
  | 114 |  |   | 
  | 115 |  |   | 
  | 116 |  |   | 
  | 117 |  |      protected void applyPoliciesOnExit(List<ActionRequestValue> requestsGenerated, RouteContext routeContext) { | 
  | 118 | 0 |          DocumentRouteHeaderValue document = routeContext.getDocument(); | 
  | 119 | 0 |          RouteNodeInstance nodeInstance = routeContext.getNodeInstance(); | 
  | 120 | 0 |          RouteNode node = nodeInstance.getRouteNode(); | 
  | 121 |  |           | 
  | 122 | 0 |          if (node.isMandatory() && !isSupressingPolicyErrors(routeContext) && CollectionUtils.isEmpty(requestsGenerated)) { | 
  | 123 | 0 |              List<ActionRequestValue> actionRequests = KEWServiceLocator.getActionRequestService().findRootRequestsByDocIdAtRouteNode(document.getDocumentId(), nodeInstance.getRouteNodeInstanceId()); | 
  | 124 | 0 |              if (actionRequests.isEmpty()) { | 
  | 125 | 0 |                  LOG.warn("no requests generated for mandatory route - " + node.getRouteNodeName()); | 
  | 126 | 0 |                  throw new RouteManagerException( | 
  | 127 |  |                      "No requests generated for mandatory route " + node.getRouteNodeName() + ":" + node | 
  | 128 |  |                              .getRouteMethodName(), routeContext); | 
  | 129 |  |              } | 
  | 130 |  |          } | 
  | 131 | 0 |      } | 
  | 132 |  |   | 
  | 133 |  |       | 
  | 134 |  |   | 
  | 135 |  |   | 
  | 136 |  |   | 
  | 137 |  |   | 
  | 138 |  |          protected boolean processCustom(RouteContext routeContext, RouteHelper routeHelper) throws Exception { | 
  | 139 | 0 |                  return false; | 
  | 140 |  |          } | 
  | 141 |  |           | 
  | 142 |  |           | 
  | 143 |  |   | 
  | 144 |  |   | 
  | 145 |  |   | 
  | 146 |  |   | 
  | 147 |  |          protected void verifyFinalApprovalRequest( DocumentRouteHeaderValue document, List<ActionRequestValue> requests, RouteNodeInstance nodeInstance, RouteContext routeContext ) throws RouteManagerException { | 
  | 148 | 0 |                  boolean pastFinalApprover = isPastFinalApprover( document, nodeInstance ); | 
  | 149 | 0 |                  boolean hasApproveRequest = false; | 
  | 150 | 0 |                  for ( ActionRequestValue actionRequest : requests ) { | 
  | 151 | 0 |                          if ( actionRequest.isApproveOrCompleteRequest() ) { | 
  | 152 | 0 |                                  hasApproveRequest = true; | 
  | 153 | 0 |                                  break; | 
  | 154 |  |                          } | 
  | 155 |  |                  } | 
  | 156 |  |                   | 
  | 157 |  |                   | 
  | 158 | 0 |                  if ( nodeInstance.getRouteNode().getFinalApprovalInd().booleanValue() ) { | 
  | 159 |  |                           | 
  | 160 |  |                           | 
  | 161 | 0 |                          if ( !hasApproveRequest ) { | 
  | 162 | 0 |                                  throw new RouteManagerException( | 
  | 163 |  |                                                  "No Approve Request generated after final approver", routeContext ); | 
  | 164 |  |                          } | 
  | 165 | 0 |                  } else if ( pastFinalApprover ) { | 
  | 166 |  |                           | 
  | 167 |  |                           | 
  | 168 | 0 |                          if ( hasApproveRequest ) { | 
  | 169 | 0 |                                  throw new RouteManagerException( | 
  | 170 |  |                                                  "Approve Request generated after final approver", routeContext ); | 
  | 171 |  |                          } | 
  | 172 |  |                  } | 
  | 173 | 0 |          } | 
  | 174 |  |   | 
  | 175 |  |          public List<ActionRequestValue> getNewActionRequests(RouteContext context) throws Exception { | 
  | 176 | 0 |                  RouteNodeInstance nodeInstance = context.getNodeInstance(); | 
  | 177 | 0 |                  String routeMethodName = nodeInstance.getRouteNode().getRouteMethodName(); | 
  | 178 | 0 |                  if ( LOG.isDebugEnabled() ) { | 
  | 179 | 0 |                          LOG.debug( "Looking for action requests in " + routeMethodName + " : " | 
  | 180 |  |                                          + nodeInstance.getRouteNode().getRouteNodeName() ); | 
  | 181 |  |                  } | 
  | 182 | 0 |                  List<ActionRequestValue> newRequests = new ArrayList<ActionRequestValue>(); | 
  | 183 |  |                  try { | 
  | 184 | 0 |                          RouteModule routeModule = getRouteModule( context ); | 
  | 185 | 0 |                          List<ActionRequestValue> requests = routeModule.findActionRequests( context ); | 
  | 186 | 0 |                          for ( ActionRequestValue actionRequest : requests ) { | 
  | 187 | 0 |                                  if ( LOG.isDebugEnabled() ) { | 
  | 188 | 0 |                                          LOG.debug( "Request generated by RouteModule '" + routeModule + "' for node " | 
  | 189 |  |                                                          + nodeInstance + ":" + actionRequest ); | 
  | 190 |  |                                  } | 
  | 191 | 0 |                                  actionRequest = KEWServiceLocator.getActionRequestService() | 
  | 192 |  |                                                  .initializeActionRequestGraph( actionRequest, context.getDocument(), | 
  | 193 |  |                                                                  nodeInstance ); | 
  | 194 | 0 |                                  saveActionRequest( context, actionRequest ); | 
  | 195 | 0 |                                  newRequests.add( actionRequest ); | 
  | 196 |  |                          } | 
  | 197 | 0 |                  } catch ( WorkflowException ex ) { | 
  | 198 | 0 |                          LOG.warn( "Caught WorkflowException during routing", ex ); | 
  | 199 | 0 |                          throw new RouteManagerException( ex, context ); | 
  | 200 | 0 |                  } | 
  | 201 | 0 |                  return newRequests; | 
  | 202 |  |          } | 
  | 203 |  |   | 
  | 204 |  |           | 
  | 205 |  |   | 
  | 206 |  |   | 
  | 207 |  |   | 
  | 208 |  |          protected RouteModule getRouteModule(RouteContext context) throws Exception { | 
  | 209 | 0 |                  return KEWServiceLocator.getRouteModuleService().findRouteModule( | 
  | 210 |  |                                  context.getNodeInstance().getRouteNode() ); | 
  | 211 |  |          } | 
  | 212 |  |   | 
  | 213 |  |           | 
  | 214 |  |   | 
  | 215 |  |   | 
  | 216 |  |   | 
  | 217 |  |   | 
  | 218 |  |          protected boolean isPastFinalApprover(DocumentRouteHeaderValue document, | 
  | 219 |  |                          RouteNodeInstance nodeInstance) { | 
  | 220 | 0 |                  FinalApproverContext context = new FinalApproverContext(); | 
  | 221 | 0 |                  List revokedNodeInstances = KEWServiceLocator.getRouteNodeService() | 
  | 222 |  |                                  .getRevokedNodeInstances( document ); | 
  | 223 | 0 |                  Set revokedNodeInstanceIds = new HashSet(); | 
  | 224 | 0 |                  for ( Iterator iterator = revokedNodeInstances.iterator(); iterator.hasNext(); ) { | 
  | 225 | 0 |                          RouteNodeInstance revokedNodeInstance = (RouteNodeInstance)iterator.next(); | 
  | 226 | 0 |                          revokedNodeInstanceIds.add( revokedNodeInstance.getRouteNodeInstanceId() ); | 
  | 227 | 0 |                  } | 
  | 228 | 0 |                  isPastFinalApprover( nodeInstance.getPreviousNodeInstances(), context, | 
  | 229 |  |                                  revokedNodeInstanceIds ); | 
  | 230 | 0 |                  return context.isPast; | 
  | 231 |  |          } | 
  | 232 |  |   | 
  | 233 |  |          protected void isPastFinalApprover(List previousNodeInstances, FinalApproverContext context, | 
  | 234 |  |                          Set revokedNodeInstanceIds) { | 
  | 235 | 0 |                  if ( previousNodeInstances != null && !previousNodeInstances.isEmpty() ) { | 
  | 236 | 0 |                          for ( Iterator iterator = previousNodeInstances.iterator(); iterator.hasNext(); ) { | 
  | 237 | 0 |                                  if ( context.isPast ) { | 
  | 238 | 0 |                                          return; | 
  | 239 |  |                                  } | 
  | 240 | 0 |                                  RouteNodeInstance nodeInstance = (RouteNodeInstance)iterator.next(); | 
  | 241 | 0 |                                  if ( context.inspected.contains( getKey( nodeInstance ) ) ) { | 
  | 242 | 0 |                                          continue; | 
  | 243 |  |                                  } else { | 
  | 244 | 0 |                                          context.inspected.add( getKey( nodeInstance ) ); | 
  | 245 |  |                                  } | 
  | 246 | 0 |                                  if ( Boolean.TRUE.equals( nodeInstance.getRouteNode().getFinalApprovalInd() ) ) { | 
  | 247 |  |                                           | 
  | 248 |  |                                           | 
  | 249 |  |                                           | 
  | 250 |  |                                           | 
  | 251 |  |                                           | 
  | 252 | 0 |                                          if ( !revokedNodeInstanceIds.contains( nodeInstance.getRouteNodeInstanceId() ) ) { | 
  | 253 | 0 |                                                  context.isPast = true; | 
  | 254 |  |                                          } | 
  | 255 | 0 |                                          return; | 
  | 256 |  |                                  } | 
  | 257 | 0 |                                  isPastFinalApprover( nodeInstance.getPreviousNodeInstances(), context, | 
  | 258 |  |                                                  revokedNodeInstanceIds ); | 
  | 259 | 0 |                          } | 
  | 260 |  |                  } | 
  | 261 | 0 |          } | 
  | 262 |  |   | 
  | 263 |  |           | 
  | 264 |  |   | 
  | 265 |  |   | 
  | 266 |  |   | 
  | 267 |  |   | 
  | 268 |  |   | 
  | 269 |  |   | 
  | 270 |  |          protected Object getKey(RouteNodeInstance nodeInstance) { | 
  | 271 | 0 |                  String id = nodeInstance.getRouteNodeInstanceId(); | 
  | 272 | 0 |                  return (id != null ? (Object)id : (Object)nodeInstance); | 
  | 273 |  |          } | 
  | 274 |  |   | 
  | 275 |  |      protected void detectRunawayProcess(RouteContext routeContext, int currentIteration) throws NumberFormatException { | 
  | 276 | 0 |              String maxNodesConstant = getParameterService().getParameterValueAsString(KewApiConstants.KEW_NAMESPACE, KRADConstants.DetailTypes.ALL_DETAIL_TYPE, KewApiConstants.MAX_NODES_BEFORE_RUNAWAY_PROCESS); | 
  | 277 | 0 |              int maxNodes = (org.apache.commons.lang.StringUtils.isEmpty(maxNodesConstant)) ? 50 : Integer.valueOf(maxNodesConstant); | 
  | 278 | 0 |              if (currentIteration > maxNodes) { | 
  | 279 | 0 |              throw new RouteManagerException("Detected a runaway process within RequestsNode for document with id '" + routeContext.getDocument().getDocumentId() + "' after " + currentIteration + " iterations."); | 
  | 280 |  |          } | 
  | 281 | 0 |          } | 
  | 282 |  |   | 
  | 283 | 0 |          protected class FinalApproverContext { | 
  | 284 | 0 |                  public Set inspected = new HashSet(); | 
  | 285 |  |   | 
  | 286 | 0 |                  public boolean isPast = false; | 
  | 287 |  |          } | 
  | 288 |  |   | 
  | 289 |  |          public static boolean isSupressingPolicyErrors(RouteContext routeContext) { | 
  | 290 | 0 |                  Boolean suppressPolicyErrors = (Boolean)routeContext.getParameters().get( | 
  | 291 |  |                                  SUPPRESS_POLICY_ERRORS_KEY ); | 
  | 292 | 0 |                  if ( suppressPolicyErrors == null || !suppressPolicyErrors ) { | 
  | 293 | 0 |                          return false; | 
  | 294 |  |                  } | 
  | 295 | 0 |                  return true; | 
  | 296 |  |          } | 
  | 297 |  |   | 
  | 298 |  |          @SuppressWarnings("unchecked") | 
  | 299 |  |          public static void setSupressPolicyErrors(RouteContext routeContext) { | 
  | 300 | 0 |                  routeContext.getParameters().put( SUPPRESS_POLICY_ERRORS_KEY, Boolean.TRUE ); | 
  | 301 | 0 |          } | 
  | 302 |  |   | 
  | 303 |  |      protected ParameterService getParameterService() { | 
  | 304 | 0 |                  return CoreFrameworkServiceLocator.getParameterService(); | 
  | 305 |  |          } | 
  | 306 |  |  } |