Package org.drools.workflow.instance.impl

Examples of org.drools.workflow.instance.impl.ConstraintEvaluator

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                            Node.CONNECTION_DEFAULT_TYPE );
        new ConnectionImpl( ruleSet3,
                            Node.CONNECTION_DEFAULT_TYPE,
                            end,
                            Node.CONNECTION_DEFAULT_TYPE );
        ConstraintEvaluator constraint1 = new org.drools.workflow.instance.impl.RuleConstraintEvaluator();
        constraint1.setPriority( 1 );
        split.setConstraint( out1,
                             constraint1 );
        ConstraintEvaluator constraint2 = new org.drools.workflow.instance.impl.RuleConstraintEvaluator();
        constraint2.setPriority( 2 );
        split.setConstraint( out2,
                             constraint2 );

        // process
        final RuleFlowProcess process = new RuleFlowProcess();
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                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();
                            selectedConnection = connection;
                            selectedConstraint = constraint;
                        }
                    }
                    if (selectedConstraint.evaluate( this,
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                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()) {
                        if ( constraint.evaluate( this,
                                                  connection,
                                                  constraint ) ) {
                            selected = connection;
                            priority = constraint.getPriority();
                        }
                    }
                }
                ((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;
                        }
                    }
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                            Node.CONNECTION_DEFAULT_TYPE );
        new ConnectionImpl( ruleSet3,
                            Node.CONNECTION_DEFAULT_TYPE,
                            end,
                            Node.CONNECTION_DEFAULT_TYPE );
        ConstraintEvaluator constraint1 = new org.drools.workflow.instance.impl.RuleConstraintEvaluator();
        constraint1.setPriority( 1 );
        split.setConstraint( out1,
                             constraint1 );
        ConstraintEvaluator constraint2 = new org.drools.workflow.instance.impl.RuleConstraintEvaluator();
        constraint2.setPriority( 2 );
        split.setConstraint( out2,
                             constraint2 );

        // process
        final RuleFlowProcess process = new RuleFlowProcess();
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                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()) {
                        if ( constraint.evaluate( this,
                                                  connection,
                                                  constraint ) ) {
                            selected = connection;
                            priority = constraint.getPriority();
                        }
                    }
                }
                ((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;
                        }
                    }
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Related Classes of org.drools.workflow.instance.impl.ConstraintEvaluator

  • org.drools.reteoo.RuleFlowGroupTest
  • org.drools.workflow.instance.node.SplitInstance
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