Package org.drools.definition.process

Examples of org.drools.definition.process.Connection

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        Map<ConnectionRef, Constraint> map = new HashMap<ConnectionRef, Constraint>( splitNode.getConstraints() );
        for ( Iterator<Map.Entry<ConnectionRef, Constraint>> it = map.entrySet().iterator(); it.hasNext(); ) {
            Map.Entry<ConnectionRef, Constraint> entry = it.next();
            ConnectionRef connection = entry.getKey();
            ConstraintImpl constraint = (ConstraintImpl) entry.getValue();
            Connection outgoingConnection = null;
            for (Connection out: splitNode.getDefaultOutgoingConnections()) {
                if (out.getToType().equals(connection.getToType())
                    && out.getTo().getId() == connection.getNodeId()) {
                    outgoingConnection = out;
                }
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                    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 && !split.getConstraint(connection).isDefault() && (split.getConstraint(connection).getConstraint() == null || split.getConstraint(connection).getConstraint().trim().length() == 0)) {
                            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;
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                triggerCompleted(org.jbpm.workflow.core.Node.CONNECTION_DEFAULT_TYPE, true);
                break;
            case Split.TYPE_XOR :
                List<Connection> outgoing = split.getDefaultOutgoingConnections();
                int priority = Integer.MAX_VALUE;
                Connection selected = null;
                for ( final Iterator<Connection> iterator = outgoing.iterator(); iterator.hasNext(); ) {
                    final Connection connection = (Connection) iterator.next();
                    ConstraintEvaluator constraint = (ConstraintEvaluator) split.getConstraint( connection );
                    if ( constraint != null && constraint.getPriority() < priority && !constraint.isDefault()) {
                        try {
                          if ( constraint.evaluate( this,
                                                      connection,
                                                      constraint ) ) {
                            selected = connection;
                            priority = constraint.getPriority();
                          }
                        } catch (RuntimeException e) {
                          throw new RuntimeException(
                          "Exception when trying to evaluate constraint "
                              + constraint.getName() + " in split "
                              + split.getName(), e);
                        }
                    }
                }
                ((NodeInstanceContainer) getNodeInstanceContainer()).removeNodeInstance(this);
                if ( selected == null ) {
                  for ( final Iterator<Connection> iterator = outgoing.iterator(); iterator.hasNext(); ) {
                        final Connection connection = (Connection) iterator.next();
                        ConstraintEvaluator constraint = (ConstraintEvaluator) split.getConstraint( connection );
                        if ( constraint.isDefault() ) {
                            selected = connection;
                            break;
                        }
                    }
                }
                if ( selected == null ) {
                  throw new IllegalArgumentException( "XOR split could not find at least one valid outgoing connection for split " + getSplit().getName() );
                }
                triggerConnection(selected);
                break;
            case Split.TYPE_OR :
              ((NodeInstanceContainer) getNodeInstanceContainer()).removeNodeInstance(this);
                outgoing = split.getDefaultOutgoingConnections();
                boolean found = false;
                List<Connection> outgoingCopy = new ArrayList<Connection>(outgoing);
                while (!outgoingCopy.isEmpty()) {
                    priority = Integer.MAX_VALUE;
                    Connection selectedConnection = null;
                    ConstraintEvaluator selectedConstraint = null;
                    for ( final Iterator<Connection> iterator = outgoingCopy.iterator(); iterator.hasNext(); ) {
                        final Connection connection = (Connection) iterator.next();
                        ConstraintEvaluator constraint = (ConstraintEvaluator) split.getConstraint( connection );
   
                        if ( constraint != null 
                                && constraint.getPriority() < priority
                                && !constraint.isDefault() ) {
                            priority = constraint.getPriority();
                            selectedConnection = connection;
                            selectedConstraint = constraint;
                        }
                    }
                    if (selectedConstraint == null) {
                      break;
                    }
                    if (selectedConstraint.evaluate( this,
                                                     selectedConnection,
                                                     selectedConstraint ) ) {
                        triggerConnection(selectedConnection);
                        found = true;
                    }
                    outgoingCopy.remove(selectedConnection);
                }
                if ( !found ) {
                  for ( final Iterator<Connection> iterator = outgoing.iterator(); iterator.hasNext(); ) {
                        final Connection connection = (Connection) iterator.next();
                        ConstraintEvaluator constraint = (ConstraintEvaluator) split.getConstraint( connection );
                        if ( constraint.isDefault() ) {
                          triggerConnection(connection);
                          found = true;
                            break;
                        }
                    }
                }
                if ( !found ) {
                    throw new IllegalArgumentException( "OR split could not find at least one valid outgoing connection for split " + getSplit().getName() );
                }               
                break;
            case Split.TYPE_XAND :
              ((org.jbpm.workflow.instance.NodeInstanceContainer) getNodeInstanceContainer()).removeNodeInstance(this);
                Node node = getNode();
                List<Connection> connections = null;
                if (node != null) {
                  connections = node.getOutgoingConnections(type);
                }
                if (connections == null || connections.isEmpty()) {
                  ((org.jbpm.workflow.instance.NodeInstanceContainer) getNodeInstanceContainer())
                    .nodeInstanceCompleted(this, type);
                } else {
                  ExclusiveGroupInstance groupInstance = new ExclusiveGroupInstance();
                org.drools.runtime.process.NodeInstanceContainer parent = getNodeInstanceContainer();
                  if (parent instanceof ContextInstanceContainer) {
                    ((ContextInstanceContainer) parent).addContextInstance(ExclusiveGroup.EXCLUSIVE_GROUP, groupInstance);
                  } else {
                    throw new IllegalArgumentException(
                    "An Exclusive AND is only possible if the parent is a context instance container");
                  }
                  Map<NodeInstance, String> nodeInstances = new HashMap<NodeInstance, String>();
                  for (Connection connection: connections) {
                    nodeInstances.put(
                      ((org.jbpm.workflow.instance.NodeInstanceContainer) getNodeInstanceContainer())
                          .getNodeInstance(connection.getTo()),
                      connection.getToType());
                  }
                  for (NodeInstance nodeInstance: nodeInstances.keySet()) {
                    groupInstance.addNodeInstance(nodeInstance);
                  }
                  for (Map.Entry<NodeInstance, String> entry: nodeInstances.entrySet()) {
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      super.internalTrigger(from, type);
        CompositeNode.NodeAndType nodeAndType = getCompositeNode().internalGetLinkedIncomingNode(type);
        if (nodeAndType != null) {
          List<Connection> connections = nodeAndType.getNode().getIncomingConnections(nodeAndType.getType());
          for (Iterator<Connection> iterator = connections.iterator(); iterator.hasNext(); ) {
              Connection connection = iterator.next();
              if ((connection.getFrom() instanceof CompositeNode.CompositeNodeStart) &&
                  (from == null ||
              ((CompositeNode.CompositeNodeStart) connection.getFrom()).getInNode().getId() == from.getNodeId())) {
                  NodeInstance nodeInstance = getNodeInstance(connection.getFrom());
                  ((org.jbpm.workflow.instance.NodeInstance) nodeInstance).trigger(null, nodeAndType.getType());
                  return;
              }
          }
        } else {
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  public void internalTrigger(NodeInstance from, String type) {
    super.internalTrigger(from, type);
        // TODO: composite states trigger
        StateNode stateNode = getStateNode();
        Connection selected = null;
        int priority = Integer.MAX_VALUE;
        for (Connection connection: stateNode.getOutgoingConnections(NodeImpl.CONNECTION_DEFAULT_TYPE)) {
            Constraint constraint = stateNode.getConstraint(connection);
            if (constraint != null && constraint.getPriority() < priority) {
              String rule = "RuleFlowStateNode-" + getProcessInstance().getProcessId() + "-" +
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        }
        return true;
    }
   
    public void activationCreated(ActivationCreatedEvent event) {
        Connection selected = null;
        for (Connection connection: getNode().getOutgoingConnections(NodeImpl.CONNECTION_DEFAULT_TYPE)) {
            Constraint constraint = getStateNode().getConstraint(connection);
            if (constraint != null) {
              String constraintName =  getActivationEventType() + "-"
                + connection.getTo().getId() + "-" + connection.getToType();
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                triggerCompleted(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE, true);
                break;
            case Split.TYPE_XOR :
                List<Connection> outgoing = split.getDefaultOutgoingConnections();
                int priority = Integer.MAX_VALUE;
                Connection selected = null;
                for ( final Iterator<Connection> iterator = outgoing.iterator(); iterator.hasNext(); ) {
                    final Connection connection = (Connection) iterator.next();
                    ConstraintEvaluator constraint = (ConstraintEvaluator) split.getConstraint( connection );
                    if ( constraint != null && constraint.getPriority() < priority ) {
                        if ( constraint.evaluate( this,
                                                  connection,
                                                  constraint ) ) {
                            selected = connection;
                            priority = constraint.getPriority();
                        }
                    }
                }
                ((NodeInstanceContainer) getNodeInstanceContainer()).removeNodeInstance(this);
                if ( selected == null ) {
                    throw new IllegalArgumentException( "XOR split could not find at least one valid outgoing connection for split " + getSplit().getName() );
                }
                triggerConnection(selected);
                break;
            case Split.TYPE_OR :
              ((NodeInstanceContainer) getNodeInstanceContainer()).removeNodeInstance(this);
                outgoing = split.getDefaultOutgoingConnections();
                boolean found = false;
                List<Connection> outgoingCopy = new ArrayList<Connection>(outgoing);
                while (!outgoingCopy.isEmpty()) {
                    priority = Integer.MAX_VALUE;
                    Connection selectedConnection = null;
                    ConstraintEvaluator selectedConstraint = null;
                    for ( final Iterator<Connection> iterator = outgoingCopy.iterator(); iterator.hasNext(); ) {
                        final Connection connection = (Connection) iterator.next();
                        ConstraintEvaluator constraint = (ConstraintEvaluator) split.getConstraint( connection );
   
                        if ( constraint != null 
                                && constraint.getPriority() < priority ) {
                            priority = constraint.getPriority();
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    public void internalTrigger(final org.drools.runtime.process.NodeInstance from, String type) {
        CompositeNode.NodeAndType nodeAndType = getCompositeNode().internalGetLinkedIncomingNode(type);
        List<Connection> connections = nodeAndType.getNode().getIncomingConnections(nodeAndType.getType());
        for (Iterator<Connection> iterator = connections.iterator(); iterator.hasNext(); ) {
            Connection connection = iterator.next();
            if ((connection.getFrom() instanceof CompositeNode.CompositeNodeStart) &&
                (from == null ||
            ((CompositeNode.CompositeNodeStart) connection.getFrom()).getInNode().getId() == from.getNodeId())) {
                NodeInstance nodeInstance = getNodeInstance(connection.getFrom());
                ((org.drools.workflow.instance.NodeInstance) nodeInstance).trigger(null, nodeAndType.getType());
                return;
            }
        }
        throw new IllegalArgumentException(
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                    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;
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    public void internalTrigger(final org.drools.runtime.process.NodeInstance from, String type) {
        CompositeNode.NodeAndType nodeAndType = getCompositeNode().internalGetLinkedIncomingNode(type);
        List<Connection> connections = nodeAndType.getNode().getIncomingConnections(nodeAndType.getType());
        for (Iterator<Connection> iterator = connections.iterator(); iterator.hasNext(); ) {
            Connection connection = iterator.next();
            if ((connection.getFrom() instanceof CompositeNode.CompositeNodeStart) &&
                (from == null ||
            ((CompositeNode.CompositeNodeStart) connection.getFrom()).getInNode().getId() == from.getNodeId())) {
                NodeInstance nodeInstance = getNodeInstance(connection.getFrom());
                ((org.drools.workflow.instance.NodeInstance) nodeInstance).trigger(null, nodeAndType.getType());
                return;
            }
        }
        throw new IllegalArgumentException(
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Related Classes of org.drools.definition.process.Connection

  • org.drools.eclipse.flow.ruleflow.core.SplitWrapper
  • org.drools.eclipse.flow.ruleflow.core.StateNodeWrapper
  • org.drools.jpdl.EpdlWriter
  • org.drools.jpdl.JpdlProcessValidator
  • org.drools.process.builder.SplitNodeBuilder
  • org.drools.ruleflow.core.validation.RuleFlowProcessValidator
  • org.drools.workflow.instance.node.CompositeNodeInstance
  • org.drools.workflow.instance.node.SplitInstance
  • org.drools.workflow.instance.node.StateNodeInstance
  • org.jbpm.process.builder.SplitNodeBuilder
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