Examples with Constraint io.automatiko.engine.workflow.process.core.Constraint used on opensource projects

Example 1 with Constraint

use of io.automatiko.engine.workflow.process.core.Constraint in project automatiko-engine by automatiko-io.

the class ConstraintHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    Constrainable parent = (Constrainable) parser.getParent();
    Constraint constraint = new ConstraintImpl();
    final String toNodeIdString = element.getAttribute("toNodeId");
    String toType = element.getAttribute("toType");
    ConnectionRef connectionRef = null;
    if (toNodeIdString != null && toNodeIdString.trim().length() > 0) {
        int toNodeId = new Integer(toNodeIdString);
        if (toType == null || toType.trim().length() == 0) {
            toType = NodeImpl.CONNECTION_DEFAULT_TYPE;
        }
        connectionRef = new ConnectionRef(toNodeId, toType);
    }
    final String name = element.getAttribute("name");
    constraint.setName(name);
    final String priority = element.getAttribute("priority");
    if (priority != null && priority.length() != 0) {
        constraint.setPriority(new Integer(priority));
    }
    final String type = element.getAttribute("type");
    constraint.setType(type);
    final String dialect = element.getAttribute("dialect");
    constraint.setDialect(dialect);
    String text = ((Text) element.getChildNodes().item(0)).getWholeText();
    if (text != null) {
        text = text.trim();
        if ("".equals(text)) {
            text = null;
        }
    }
    constraint.setConstraint(text);
    parent.addConstraint(connectionRef, constraint);
    return null;
}

Example 2 with Constraint

use of io.automatiko.engine.workflow.process.core.Constraint in project automatiko-engine by automatiko-io.

the class StateNodeHandler method writeNode.

public void writeNode(Node node, StringBuilder xmlDump, boolean includeMeta) {
    StateNode stateNode = (StateNode) node;
    writeNode("state", stateNode, xmlDump, includeMeta);
    xmlDump.append(">\n");
    if (includeMeta) {
        writeMetaData(stateNode, xmlDump);
    }
    for (String eventType : stateNode.getActionTypes()) {
        writeActions(eventType, stateNode.getActions(eventType), xmlDump);
    }
    writeTimers(stateNode.getTimers(), xmlDump);
    if (!stateNode.getConstraints().isEmpty()) {
        xmlDump.append("      <constraints>" + EOL);
        for (Map.Entry<ConnectionRef, Constraint> entry : stateNode.getConstraints().entrySet()) {
            ConnectionRef connection = entry.getKey();
            Constraint constraint = entry.getValue();
            xmlDump.append("        <constraint " + "toNodeId=\"" + connection.getNodeId() + "\" ");
            String name = constraint.getName();
            if (name != null && !"".equals(name)) {
                xmlDump.append("name=\"" + XmlDumper.replaceIllegalChars(constraint.getName()) + "\" ");
            }
            int priority = constraint.getPriority();
            if (priority != 0) {
                xmlDump.append("priority=\"" + constraint.getPriority() + "\" ");
            }
            String constraintString = constraint.getConstraint();
            if (constraintString != null) {
                xmlDump.append(">" + XmlDumper.replaceIllegalChars(constraintString) + "</constraint>" + EOL);
            } else {
                xmlDump.append("/>" + EOL);
            }
        }
        xmlDump.append("      </constraints>" + EOL);
    }
    endNode("state", xmlDump);
}

Example 3 with Constraint

use of io.automatiko.engine.workflow.process.core.Constraint in project automatiko-engine by automatiko-io.

the class Split method isDefault.

public boolean isDefault(final Connection connection) {
    if (connection == null) {
        throw new IllegalArgumentException("connection is null");
    }
    if (this.type == TYPE_OR || this.type == TYPE_XOR) {
        ConnectionRef ref = new ConnectionRef((String) connection.getMetaData().get("UniqueId"), connection.getTo().getId(), connection.getToType());
        Constraint constraint = this.constraints.get(ref);
        String defaultConnection = (String) getMetaData().get("Default");
        String connectionId = (String) connection.getMetaData().get("UniqueId");
        if (constraint != null) {
            return constraint.isDefault();
        } else if (constraint == null && connectionId.equals(defaultConnection)) {
            return true;
        } else {
            return false;
        }
    }
    throw new UnsupportedOperationException("Constraints are " + "only supported with XOR or OR split types, not with: " + getType());
}

Example 4 with Constraint

use of io.automatiko.engine.workflow.process.core.Constraint in project automatiko-engine by automatiko-io.

the class ProcessHandler method buildConstraint.

private static Constraint buildConstraint(SequenceFlow connection, NodeImpl node) {
    if (connection.getExpression() == null) {
        return null;
    }
    Constraint constraint = new ConstraintImpl();
    String defaultConnection = (String) node.getMetaData("Default");
    if (defaultConnection != null && defaultConnection.equals(connection.getId())) {
        constraint.setDefault(true);
    }
    if (connection.getName() != null) {
        constraint.setName(connection.getName());
    } else {
        constraint.setName("");
    }
    if (connection.getType() != null) {
        constraint.setType(connection.getType());
    } else {
        constraint.setType("code");
    }
    if (connection.getLanguage() != null) {
        constraint.setDialect(connection.getLanguage());
    }
    if (connection.getExpression() != null) {
        constraint.setConstraint(connection.getExpression());
    }
    constraint.setPriority(connection.getPriority());
    return constraint;
}

Example 5 with Constraint

use of io.automatiko.engine.workflow.process.core.Constraint in project automatiko-engine by automatiko-io.

the class ProcessHandler method linkConnections.

public void linkConnections(NodeContainer nodeContainer, List<SequenceFlow> connections) {
    if (connections != null) {
        for (SequenceFlow connection : connections) {
            String sourceRef = connection.getSourceRef();
            Node source = findNodeByIdOrUniqueIdInMetadata(nodeContainer, sourceRef, "Could not find source node for connection:" + sourceRef);
            if (source instanceof EventNode) {
                for (EventFilter eventFilter : ((EventNode) source).getEventFilters()) {
                    if (eventFilter instanceof EventTypeFilter) {
                        if ("Compensation".equals(((EventTypeFilter) eventFilter).getType())) {
                            // BPMN Method & Style, 2nd Ed. (Silver), states this on P. 131
                            throw new IllegalArgumentException("A Compensation Boundary Event can only be *associated* with a compensation activity via an Association, not via a Sequence Flow element.");
                        }
                    }
                }
            }
            String targetRef = connection.getTargetRef();
            Node target = findNodeByIdOrUniqueIdInMetadata(nodeContainer, targetRef, "Could not find target node for connection:" + targetRef);
            Connection result = new ConnectionImpl(source, NodeImpl.CONNECTION_DEFAULT_TYPE, target, NodeImpl.CONNECTION_DEFAULT_TYPE);
            result.setMetaData("bendpoints", connection.getBendpoints());
            result.setMetaData("UniqueId", connection.getId());
            if ("true".equals(System.getProperty("jbpm.enable.multi.con"))) {
                NodeImpl nodeImpl = (NodeImpl) source;
                Constraint constraint = buildConstraint(connection, nodeImpl);
                if (constraint != null) {
                    nodeImpl.addConstraint(new ConnectionRef(connection.getId(), target.getId(), NodeImpl.CONNECTION_DEFAULT_TYPE), constraint);
                }
            } else if (source instanceof Split) {
                Split split = (Split) source;
                Constraint constraint = buildConstraint(connection, split);
                split.addConstraint(new ConnectionRef(connection.getId(), target.getId(), NodeImpl.CONNECTION_DEFAULT_TYPE), constraint);
            }
        }
    }
}