Examples of org.drools.definition.process.Node

org.drools.definition.process.Node

            }


            //Process XML
            log.debug( "Processing " + process.getId() );
            StartNode start = process.getStart();
            Node target = start.getTo().getTo();
            if ( target instanceof Split ) {
                Split split = (Split) target;
                for ( Connection connection : split.getDefaultOutgoingConnections() ) {
                    String s = constraints.get( XmlBPMNProcessDumper.getUniqueNodeId( connection.getTo() ) );
                    if ( s != null ) {

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    if (toType == null || toType.trim().length() == 0) {
      toType = NodeImpl.CONNECTION_DEFAULT_TYPE;
    }


    NodeContainer nodeContainer = (NodeContainer) parser.getParent();
    Node fromNode = nodeContainer.getNode( new Long(fromId) );
    Node toNode = nodeContainer.getNode( new Long(toId) );


    if ( fromNode == null ) {
      throw new SAXParseException( "Node '" + fromId + "'cannot be found",
                                 parser.getLocator() );
    }

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            triggerCompleted(workItem);
        }
    }
    
    public String getNodeName() {
      Node node = getNode();
      if (node == null) {
        String nodeName =  "[Dynamic]";
        WorkItem workItem = getWorkItem();
        if (workItem != null) {
          nodeName += " " + workItem.getParameter("TaskName");

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          }
      }
    }
    
    public String getNodeName() {
      Node node = getNode();
      if (node == null) {
        return "[Dynamic] Sub Process";
      }
      return super.getNodeName();
    }

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                event.getProcessInstance().getProcessName(),
                event.getProcessInstance().getId()) );
    }
    
    private String createNodeId(NodeInstance nodeInstance) {
        Node node = nodeInstance.getNode();
        if (node == null) {
            return "";
        }
        String nodeId = "" + node.getId();
        NodeContainer nodeContainer = node.getNodeContainer();
        while (nodeContainer != null) {
            if (nodeContainer instanceof Node) {
                node = (Node) nodeContainer;
                nodeContainer = node.getNodeContainer();
                // TODO fix this filter out hidden compositeNode inside ForEach node
                if (!(nodeContainer.getClass().getName().endsWith("ForEachNode"))) {
                    nodeId = node.getId() + ":" + nodeId;
                }
            } else {
                break;
            }
        }

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    if (toType == null || toType.trim().length() == 0) {
      toType = NodeImpl.CONNECTION_DEFAULT_TYPE;
    }


    NodeContainer nodeContainer = (NodeContainer) parser.getParent();
    Node fromNode = nodeContainer.getNode(new Long(fromId));
    Node toNode = nodeContainer.getNode(new Long(toId));


    if (fromNode == null) {
      throw new SAXParseException(
        "Node '" + fromId + "' cannot be found", parser.getLocator());
    }

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        return errors.toArray(new ProcessValidationError[errors.size()]);
    }
    
    private void validateNodes(Node[] nodes, List<ProcessValidationError> errors, RuleFlowProcess process) {
        for ( int i = 0; i < nodes.length; i++ ) {
            final Node node = nodes[i];
            if (node instanceof StartNode) {
                final StartNode startNode = (StartNode) node;
                startNodeFound = true;
                if (startNode.getTo() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Start node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
                }
            } else if (node instanceof EndNode) {
                final EndNode endNode = (EndNode) node;
                endNodeFound = true;
                if (endNode.getFrom() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "End node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
                }
            } else if (node instanceof RuleSetNode) {
                final RuleSetNode ruleSetNode = (RuleSetNode) node;
                if (ruleSetNode.getFrom() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "RuleSet node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
                }
                if (ruleSetNode.getTo() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "RuleSet node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
                }
                final String ruleFlowGroup = ruleSetNode.getRuleFlowGroup();
                if (ruleFlowGroup == null || "".equals(ruleFlowGroup)) {
                    errors.add( new ProcessValidationErrorImpl(process,
                        "RuleSet node '" + node.getName() + "' [" + node.getId() + "] has no ruleflow-group."));
                }
            } else if (node instanceof Split) {
                final Split split = (Split) node;
                if (split.getType() == Split.TYPE_UNDEFINED) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Split node '" + node.getName() + "' [" + node.getId() + "] has no type."));
                }
                if (split.getFrom() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Split node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
                }
                if (split.getDefaultOutgoingConnections().size() < 2) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Split node '" + node.getName() + "' [" + node.getId() + "] does not have more than one outgoing connection: " + split.getOutgoingConnections().size() + "."));
                }
                if (split.getType() == Split.TYPE_XOR || split.getType() == Split.TYPE_OR ) {
                    for ( final Iterator<Connection> it = split.getDefaultOutgoingConnections().iterator(); it.hasNext(); ) {
                        final Connection connection = it.next();
                        if (split.getConstraint(connection) == null) {
                            errors.add(new ProcessValidationErrorImpl(process,
                                "Split node '" + node.getName() + "' [" + node.getId() + "] does not have a constraint for " + connection.toString() + "."));
                        }
                    }
                }
            } else if ( node instanceof Join ) {
                final Join join = (Join) node;
                if (join.getType() == Join.TYPE_UNDEFINED) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Join node '" + node.getName() + "' [" + node.getId() + "] has no type."));
                }
                if (join.getDefaultIncomingConnections().size() < 2) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Join node '" + node.getName() + "' [" + node.getId() + "] does not have more than one incoming connection: " + join.getIncomingConnections().size() + "."));
                }
                if (join.getTo() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Join node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
                }
            } else if (node instanceof MilestoneNode) {
                final MilestoneNode milestone = (MilestoneNode) node;
                if (milestone.getFrom() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Milestone node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
                }


                if (milestone.getTo() == null) {
                    errors.add( new ProcessValidationErrorImpl(process,
                        "Milestone node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
                }
                if (milestone.getConstraint() == null) {
                    errors.add( new ProcessValidationErrorImpl(process,
                        "Milestone node '" + node.getName() + "' [" + node.getId() + "] has no constraint."));
                }
            } else if (node instanceof SubProcessNode) {
                final SubProcessNode subProcess = (SubProcessNode) node;
                if (subProcess.getFrom() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "SubProcess node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
                }
                if (subProcess.getTo() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "SubProcess node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
                }
                if (subProcess.getProcessId() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "SubProcess node '" + node.getName() + "' [" + node.getId() + "] has no process id."));
                }
            } else if (node instanceof ActionNode) {
                final ActionNode actionNode = (ActionNode) node;
                if (actionNode.getFrom() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Action node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
                }
                if (actionNode.getTo() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Action node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
                }
                if (actionNode.getAction() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Action node '" + node.getName() + "' [" + node.getId() + "] has no action."));
                } else {
                    if (actionNode.getAction() instanceof DroolsConsequenceAction) {
                        DroolsConsequenceAction droolsAction = (DroolsConsequenceAction) actionNode.getAction();
                        String actionString = droolsAction.getConsequence();
                        if (actionString == null) {
                            errors.add(new ProcessValidationErrorImpl(process,
                                "Action node '" + node.getName() + "' [" + node.getId() + "] has empty action."));
                        } else if( "mvel".equals( droolsAction.getDialect() ) ) {
                            try {
                                ExpressionCompiler compiler = new ExpressionCompiler(actionString);
                                compiler.setVerifying(true);
                                ParserContext parserContext = new ParserContext();
                                //parserContext.setStrictTypeEnforcement(true);
                                compiler.compile(parserContext);
                                List<ErrorDetail> mvelErrors = parserContext.getErrorList();
                                if (mvelErrors != null) {
                                    for (Iterator<ErrorDetail> iterator = mvelErrors.iterator(); iterator.hasNext(); ) {
                                        ErrorDetail error = iterator.next();
                                        errors.add(new ProcessValidationErrorImpl(process,
                                            "Action node '" + node.getName() + "' [" + node.getId() + "] has invalid action: " + error.getMessage() + "."));
                                    }
                                }
                            } catch (Throwable t) {
                                errors.add(new ProcessValidationErrorImpl(process,
                                    "Action node '" + node.getName() + "' [" + node.getId() + "] has invalid action: " + t.getMessage() + "."));
                            }
                        }
                    }
                }
            } else if (node instanceof WorkItemNode) {
                final WorkItemNode workItemNode = (WorkItemNode) node;
                if (workItemNode.getFrom() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "WorkItem node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
                }
                if (workItemNode.getTo() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "WorkItem node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
                }
                if (workItemNode.getWork() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "WorkItem node '" + node.getName() + "' [" + node.getId() + "] has no work specified."));
                } else {
                    Work work = workItemNode.getWork();
                    if (work.getName() == null) {
                        errors.add(new ProcessValidationErrorImpl(process,
                            "WorkItem node '" + node.getName() + "' [" + node.getId() + "] has no work name."));
                    }
                }
            } else if (node instanceof ForEachNode) {
                final ForEachNode forEachNode = (ForEachNode) node;
                String variableName = forEachNode.getVariableName();
                if (variableName == null || "".equals(variableName)) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no variable name"));
                }
                String collectionExpression = forEachNode.getCollectionExpression();
                if (collectionExpression == null || "".equals(collectionExpression)) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no collection expression"));
                }
                if (forEachNode.getIncomingConnections(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE).size() == 0) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection"));
                }
                if (forEachNode.getOutgoingConnections(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE).size() == 0) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection"));
                }
                if (forEachNode.getLinkedIncomingNode(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE) == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no linked start node"));
                }
                if (forEachNode.getLinkedOutgoingNode(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE) == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no linked end node"));
                }
                validateNodes(forEachNode.getNodes(), errors, process);
            } else if (node instanceof CompositeNode) {
                final CompositeNode compositeNode = (CompositeNode) node;
                for (Map.Entry<String, NodeAndType> inType: compositeNode.getLinkedIncomingNodes().entrySet()) {
                    if (compositeNode.getIncomingConnections(inType.getKey()).size() == 0) {
                        errors.add(new ProcessValidationErrorImpl(process,
                            "Composite node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection for type " + inType.getKey()));
                    }
                  if (inType.getValue().getNode() == null) {
                        errors.add(new ProcessValidationErrorImpl(process,
                            "Composite node '" + node.getName() + "' [" + node.getId() + "] has invalid linked incoming node for type " + inType.getKey()));
                  }
                }
                for (Map.Entry<String, NodeAndType> outType: compositeNode.getLinkedOutgoingNodes().entrySet()) {
                    if (compositeNode.getOutgoingConnections(outType.getKey()).size() == 0) {
                        errors.add(new ProcessValidationErrorImpl(process,
                            "Composite node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection for type " + outType.getKey()));
                    }
                  if (outType.getValue().getNode() == null) {
                        errors.add(new ProcessValidationErrorImpl(process,
                            "Composite node '" + node.getName() + "' [" + node.getId() + "] has invalid linked outgoing node for type " + outType.getKey()));
                  }
                }
                validateNodes(compositeNode.getNodes(), errors, process);
            } else if (node instanceof EventNode) {
                final EventNode eventNode = (EventNode) node;
                if (eventNode.getEventFilters().size() == 0) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Event node '" + node.getName() + "' [" + node.getId() + "] should specify an event type"));
                }
                if (eventNode.getOutgoingConnections(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE).size() == 0) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Event node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection"));
                }
            } else if (node instanceof FaultNode) {
              endNodeFound = true;
                final FaultNode faultNode = (FaultNode) node;
              if (faultNode.getFrom() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Fault node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
                }
              if (faultNode.getFaultName() == null) {
                errors.add(new ProcessValidationErrorImpl(process,
                        "Fault node '" + node.getName() + "' [" + node.getId() + "] has no fault name."));
              }
            } 
        }


    }

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                                               final List<ProcessValidationError> errors) {
        final Map<Node, Boolean> processNodes = new HashMap<Node, Boolean>();
        final Node[] nodes = process.getNodes();
        List<Node> eventNodes = new ArrayList<Node>();
        for (int i = 0; i < nodes.length; i++) {
            final Node node = nodes[i];
            processNodes.put(node, Boolean.FALSE);
            if (node instanceof EventNode) {
              eventNodes.add(node);
            }
        }
        final Node start = process.getStart();
        if (start != null) {
            processNode(start, processNodes);
        }
        for (Node eventNode: eventNodes) {
            processNode(eventNode, processNodes);
        }
        for ( final Iterator<Node> it = processNodes.keySet().iterator(); it.hasNext(); ) {
            final Node node = it.next();
            if (Boolean.FALSE.equals(processNodes.get(node))) {
                errors.add(new ProcessValidationErrorImpl(process,
                    "Node '" + node.getName() + "' [" + node.getId() + "] has no connection to the start node."));
            }
        }
    }

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  public ActionNodeFactory actionNode(long id) {
    return new ActionNodeFactory(process, id);
  }
  
  public RuleFlowProcessFactory connection(long fromId, long toId) {
    Node from = process.getNode(fromId);
    Node to = process.getNode(toId);
    new ConnectionImpl(
      from, org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE,
      to, org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE);
    return this;
  }

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            throw new IllegalArgumentException( "Could not read process" );
        }
        log.debug( "Processing " + process.getId() );
        result = new HashMap<String, String[]>();
        StartNode start = process.getStart();
        Node target = start.getTo().getTo();
        if ( target instanceof Split ) {
            Split split = (Split) target;
            for ( Connection connection : split.getDefaultOutgoingConnections() ) {
                Constraint constraint = split.getConstraint( connection );
                if ( constraint != null ) {

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