Examples with Constraint org.jbpm.workflow.core.Constraint used on opensource projects

Example 6 with Constraint

use of org.jbpm.workflow.core.Constraint in project jbpm by kiegroup.

the class MultiConditionalSequenceFlowNodeBuilder method build.

public void build(Process process, ProcessDescr processDescr, ProcessBuildContext context, Node node) {
    Map<ConnectionRef, Constraint> constraints = ((NodeImpl) node).getConstraints();
    // exclude split as it is handled with separate builder and nodes with non conditional sequence flows
    if (node instanceof Split || constraints.size() == 0) {
        return;
    }
    // we need to clone the map, so we can update the original while iterating.
    Map<ConnectionRef, Constraint> map = new HashMap<ConnectionRef, Constraint>(constraints);
    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 : ((NodeImpl) node).getDefaultOutgoingConnections()) {
            if (out.getToType().equals(connection.getToType()) && out.getTo().getId() == connection.getNodeId()) {
                outgoingConnection = out;
            }
        }
        if (outgoingConnection == null) {
            throw new IllegalArgumentException("Could not find outgoing connection");
        }
        if ("rule".equals(constraint.getType())) {
            RuleConstraintEvaluator ruleConstraint = new RuleConstraintEvaluator();
            ruleConstraint.setDialect(constraint.getDialect());
            ruleConstraint.setName(constraint.getName());
            ruleConstraint.setPriority(constraint.getPriority());
            ruleConstraint.setDefault(constraint.isDefault());
            ((NodeImpl) node).setConstraint(outgoingConnection, ruleConstraint);
        } else if ("code".equals(constraint.getType())) {
            ReturnValueConstraintEvaluator returnValueConstraint = new ReturnValueConstraintEvaluator();
            returnValueConstraint.setDialect(constraint.getDialect());
            returnValueConstraint.setName(constraint.getName());
            returnValueConstraint.setPriority(constraint.getPriority());
            returnValueConstraint.setDefault(constraint.isDefault());
            ((NodeImpl) node).setConstraint(outgoingConnection, returnValueConstraint);
            ReturnValueDescr returnValueDescr = new ReturnValueDescr();
            returnValueDescr.setText(constraint.getConstraint());
            returnValueDescr.setResource(processDescr.getResource());
            ProcessDialect dialect = ProcessDialectRegistry.getDialect(constraint.getDialect());
            dialect.getReturnValueEvaluatorBuilder().build(context, returnValueConstraint, returnValueDescr, (NodeImpl) node);
        }
    }
}

Example 7 with Constraint

use of org.jbpm.workflow.core.Constraint in project jbpm by kiegroup.

the class SplitNodeBuilder method build.

public void build(Process process, ProcessDescr processDescr, ProcessBuildContext context, Node node) {
    Split splitNode = (Split) node;
    if (splitNode.getType() != Split.TYPE_XOR && splitNode.getType() != Split.TYPE_OR) {
        // we only process or/xor
        return;
    }
    // we need to clone the map, so we can update the original while iterating.
    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;
            }
        }
        if (outgoingConnection == null) {
            throw new IllegalArgumentException("Could not find outgoing connection");
        }
        if (constraint == null && splitNode.isDefault(outgoingConnection)) {
        // do nothing since conditions are ignored for default sequence flow
        } else if (constraint != null && "rule".equals(constraint.getType())) {
            RuleConstraintEvaluator ruleConstraint = new RuleConstraintEvaluator();
            ruleConstraint.setDialect(constraint.getDialect());
            ruleConstraint.setName(constraint.getName());
            ruleConstraint.setPriority(constraint.getPriority());
            ruleConstraint.setDefault(constraint.isDefault());
            ruleConstraint.setType(constraint.getType());
            ruleConstraint.setConstraint(constraint.getConstraint());
            splitNode.setConstraint(outgoingConnection, ruleConstraint);
        } else if (constraint != null && "code".equals(constraint.getType())) {
            ReturnValueConstraintEvaluator returnValueConstraint = new ReturnValueConstraintEvaluator();
            returnValueConstraint.setDialect(constraint.getDialect());
            returnValueConstraint.setName(constraint.getName());
            returnValueConstraint.setPriority(constraint.getPriority());
            returnValueConstraint.setDefault(constraint.isDefault());
            returnValueConstraint.setType(constraint.getType());
            returnValueConstraint.setConstraint(constraint.getConstraint());
            splitNode.setConstraint(outgoingConnection, returnValueConstraint);
            ReturnValueDescr returnValueDescr = new ReturnValueDescr();
            returnValueDescr.setText(constraint.getConstraint());
            returnValueDescr.setResource(processDescr.getResource());
            ProcessDialect dialect = ProcessDialectRegistry.getDialect(constraint.getDialect());
            dialect.getReturnValueEvaluatorBuilder().build(context, returnValueConstraint, returnValueDescr, (NodeImpl) node);
        }
    }
}

Example 8 with Constraint

use of org.jbpm.workflow.core.Constraint in project jbpm by kiegroup.

the class StateNodeInstance method activationCreated.

public void activationCreated(MatchCreatedEvent 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();
            if (constraintName.equals(event.getMatch().getRule().getName()) && checkProcessInstance((Activation) event.getMatch())) {
                selected = connection;
            }
        }
    }
    if (selected != null) {
        removeEventListeners();
        ((NodeInstanceContainer) getNodeInstanceContainer()).removeNodeInstance(this);
        triggerConnection(selected);
    }
}

Example 9 with Constraint

use of org.jbpm.workflow.core.Constraint in project jbpm by kiegroup.

the class StateNodeInstance method internalTrigger.

public void internalTrigger(NodeInstance from, String type) {
    super.internalTrigger(from, type);
    // if node instance was cancelled, abort
    if (getNodeInstanceContainer().getNodeInstance(getId()) == null) {
        return;
    }
    // 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() + "-" + getStateNode().getUniqueId() + "-" + connection.getTo().getId() + "-" + connection.getToType();
            boolean isActive = ((InternalAgenda) getProcessInstance().getKnowledgeRuntime().getAgenda()).isRuleActiveInRuleFlowGroup("DROOLS_SYSTEM", rule, getProcessInstance().getId());
            if (isActive) {
                selected = connection;
                priority = constraint.getPriority();
            }
        }
    }
    if (selected != null) {
        ((NodeInstanceContainer) getNodeInstanceContainer()).removeNodeInstance(this);
        triggerConnection(selected);
    } else {
        addTriggerListener();
        addActivationListener();
    }
}

Example 10 with Constraint

use of org.jbpm.workflow.core.Constraint in project jbpm by kiegroup.

the class StateNodeInstance method signalEvent.

public void signalEvent(String type, Object event) {
    if ("signal".equals(type)) {
        if (event instanceof String) {
            for (Connection connection : getStateNode().getOutgoingConnections(NodeImpl.CONNECTION_DEFAULT_TYPE)) {
                boolean selected = false;
                Constraint constraint = getStateNode().getConstraint(connection);
                if (constraint == null) {
                    if (((String) event).equals(connection.getTo().getName())) {
                        selected = true;
                    }
                } else if (((String) event).equals(constraint.getName())) {
                    selected = true;
                }
                if (selected) {
                    triggerEvent(ExtendedNodeImpl.EVENT_NODE_EXIT);
                    removeEventListeners();
                    ((org.jbpm.workflow.instance.NodeInstanceContainer) getNodeInstanceContainer()).removeNodeInstance(this);
                    triggerConnection(connection);
                    return;
                }
            }
        }
    } else if (getActivationEventType().equals(type)) {
        if (event instanceof MatchCreatedEvent) {
            activationCreated((MatchCreatedEvent) event);
        }
    } else {
        super.signalEvent(type, event);
    }
}