/*
* Copyright 2005 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.eclipse.flow.ruleflow.core;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.drools.eclipse.flow.common.editor.core.ElementConnection;
import org.drools.eclipse.flow.common.editor.core.ElementWrapper;
import org.drools.eclipse.flow.ruleflow.view.property.constraint.StateConstraintsPropertyDescriptor;
import org.eclipse.ui.views.properties.IPropertyDescriptor;
import org.jbpm.workflow.core.Constraint;
import org.jbpm.workflow.core.Node;
import org.jbpm.workflow.core.WorkflowProcess;
import org.jbpm.workflow.core.impl.ConnectionRef;
import org.jbpm.workflow.core.impl.NodeImpl;
import org.jbpm.workflow.core.node.StateNode;
import org.kie.api.definition.process.Connection;
/**
* Wrapper for a milestone node.
*/
public class StateNodeWrapper extends StateBasedNodeWrapper {
public static final String CONSTRAINTS = "constraints";
private static final long serialVersionUID = 510l;
public StateNodeWrapper() {
setNode(new StateNode());
getStateNode().setName("State");
}
protected void initDescriptors() {
super.initDescriptors();
IPropertyDescriptor[] oldDescriptors = descriptors;
descriptors = new IPropertyDescriptor[oldDescriptors.length + 3];
System.arraycopy(oldDescriptors, 0, descriptors, 0, oldDescriptors.length);
descriptors[descriptors.length - 3] = getOnEntryPropertyDescriptor();
descriptors[descriptors.length - 2] = getOnExitPropertyDescriptor();
descriptors[descriptors.length - 1] =
new StateConstraintsPropertyDescriptor(CONSTRAINTS, "Constraints",
getStateNode(), (WorkflowProcess) getParent().getProcessWrapper().getProcess());
}
public IPropertyDescriptor[] getPropertyDescriptors() {
if (descriptors == null) {
initDescriptors();
}
return descriptors;
}
public void setNode(Node node) {
super.setNode(node);
for (Connection connection: getStateNode().getOutgoingConnections(NodeImpl.CONNECTION_DEFAULT_TYPE)) {
String label = null;
Constraint constraint = getStateNode().getConstraint(connection);
if (constraint != null) {
label = constraint.getName();
}
((org.jbpm.workflow.core.Connection) connection).setMetaData("label", label);
}
}
public StateNode getStateNode() {
return (StateNode) getNode();
}
private void updateConnectionLabels() {
for (ElementConnection connection: getOutgoingConnections()) {
updateConnectionLabel(connection);
}
}
private void updateConnectionLabel(ElementConnection connection) {
ConnectionWrapper connectionWrapper = (ConnectionWrapper) connection;
String label = null;
Constraint constraint = getStateNode().getConstraint(
connectionWrapper.getConnection());
if (constraint != null) {
label = constraint.getName();
}
connectionWrapper.getConnection().setMetaData("label", label);
connectionWrapper.notifyListeners(ElementConnection.CHANGE_LABEL);
}
public boolean acceptsIncomingConnection(ElementConnection connection, ElementWrapper source) {
return super.acceptsIncomingConnection(connection, source)
&& getIncomingConnections().isEmpty();
}
public Object getPropertyValue(Object id) {
if (CONSTRAINTS.equals(id)) {
return new MyHashMap<ConnectionRef, Constraint>(
getStateNode().getConstraints());
}
return super.getPropertyValue(id);
}
public void resetPropertyValue(Object id) {
if (CONSTRAINTS.equals(id)) {
for (Connection connection: getStateNode().getOutgoingConnections(NodeImpl.CONNECTION_DEFAULT_TYPE)) {
getStateNode().setConstraint(connection, null);
}
updateConnectionLabels();
} else {
super.resetPropertyValue(id);
}
}
@SuppressWarnings("unchecked")
public void setPropertyValue(Object id, Object value) {
if (CONSTRAINTS.equals(id)) {
Iterator<Map.Entry<ConnectionRef, Constraint>> iterator = ((Map<ConnectionRef, Constraint>) value).entrySet().iterator();
while (iterator.hasNext()) {
Map.Entry<ConnectionRef, Constraint> element = iterator.next();
ConnectionRef connectionRef = element.getKey();
Connection outgoingConnection = null;
for (Connection out: getStateNode().getOutgoingConnections(NodeImpl.CONNECTION_DEFAULT_TYPE)) {
if (out.getToType().equals(connectionRef.getToType())
&& out.getTo().getId() == connectionRef.getNodeId()) {
outgoingConnection = out;
}
}
if (outgoingConnection == null) {
throw new IllegalArgumentException("Could not find outgoing connection");
}
getStateNode().setConstraint(outgoingConnection, (Constraint) element.getValue());
}
updateConnectionLabels();
} else {
super.setPropertyValue(id, value);
}
}
public class MyHashMap<K, V> extends HashMap<K, V> {
private static final long serialVersionUID = 510l;
public MyHashMap() {
}
public MyHashMap(Map<K, V> map) {
super(map);
}
public String toString() {
return "";
}
}
}