/*
* 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.io.IOException;
import java.io.ObjectInputStream;
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.ConstraintsPropertyDescriptor;
import org.eclipse.ui.views.properties.ComboBoxPropertyDescriptor;
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.node.Split;
import org.kie.definition.process.Connection;
/**
* Wrapper for a split node.
*/
public class SplitWrapper extends AbstractNodeWrapper {
public static final int CHANGE_TYPE = 5;
public static final String TYPE = "type";
public static final String CONSTRAINTS = "constraints";
private static final long serialVersionUID = 510l;
private transient IPropertyDescriptor[] descriptors;
public SplitWrapper() {
setNode(new Split());
getSplit().setName("Split");
setDescriptors();
}
public void setNode(Node node) {
super.setNode(node);
for (Connection connection: getSplit().getDefaultOutgoingConnections()) {
String label = null;
Constraint constraint = getSplit().internalGetConstraint(
new ConnectionRef(connection.getTo().getId(), connection.getToType()));
if (constraint != null) {
label = constraint.getName();
}
((org.jbpm.workflow.core.Connection) connection).setMetaData("label", label);
}
}
private void updateConnectionLabels() {
for (ElementConnection connection: getOutgoingConnections()) {
updateConnectionLabel(connection);
}
}
private void updateConnectionLabel(ElementConnection connection) {
ConnectionWrapper connectionWrapper = (ConnectionWrapper) connection;
String label = null;
Constraint constraint = getSplit().internalGetConstraint(
new ConnectionRef(connectionWrapper.getConnection().getTo().getId(),
connectionWrapper.getConnection().getToType()));
if (constraint != null) {
label = constraint.getName();
}
connectionWrapper.getConnection().setMetaData("label", label);
connectionWrapper.notifyListeners(ElementConnection.CHANGE_LABEL);
}
private void setDescriptors() {
descriptors = new IPropertyDescriptor[AbstractNodeWrapper.DESCRIPTORS.length + 1];
System.arraycopy(AbstractNodeWrapper.DESCRIPTORS, 0, descriptors, 0, AbstractNodeWrapper.DESCRIPTORS.length);
descriptors[descriptors.length - 1] =
new ComboBoxPropertyDescriptor(TYPE, "Type",
new String[] { "", "AND", "XOR", "OR" });
}
public Split getSplit() {
return (Split) getNode();
}
public boolean acceptsIncomingConnection(ElementConnection connection, ElementWrapper source) {
return super.acceptsIncomingConnection(connection, source)
&& getIncomingConnections().isEmpty();
}
public IPropertyDescriptor[] getPropertyDescriptors() {
if (getParent() != null && (getSplit().getType() == Split.TYPE_XOR
|| getSplit().getType() == Split.TYPE_OR)) {
IPropertyDescriptor[] result = new IPropertyDescriptor[descriptors.length + 1];
System.arraycopy(descriptors, 0, result, 0, descriptors.length);
result[descriptors.length] =
new ConstraintsPropertyDescriptor(CONSTRAINTS, "Constraints", getSplit(), (WorkflowProcess) getParent().getProcessWrapper().getProcess());
return result;
}
return descriptors;
}
public Object getPropertyValue(Object id) {
if (TYPE.equals(id)) {
return new Integer(getSplit().getType());
}
if (CONSTRAINTS.equals(id)) {
return getSplit().getType() == Split.TYPE_XOR
|| getSplit().getType() == Split.TYPE_OR
? new MyHashMap<ConnectionRef, Constraint>(getSplit().getConstraints())
: new MyHashMap<ConnectionRef, Constraint>();
}
return super.getPropertyValue(id);
}
public void resetPropertyValue(Object id) {
if (TYPE.equals(id)) {
getSplit().setType(Split.TYPE_UNDEFINED);
notifyListeners(CHANGE_TYPE);
updateConnectionLabels();
} else if (CONSTRAINTS.equals(id)) {
for (Connection connection: getSplit().getDefaultOutgoingConnections()) {
getSplit().setConstraint(connection, null);
}
updateConnectionLabels();
} else {
super.resetPropertyValue(id);
}
}
@SuppressWarnings("unchecked")
public void setPropertyValue(Object id, Object value) {
if (TYPE.equals(id)) {
getSplit().setType(((Integer) value).intValue());
notifyListeners(CHANGE_TYPE);
updateConnectionLabels();
} else 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: getSplit().getDefaultOutgoingConnections()) {
if (out.getToType().equals(connectionRef.getToType())
&& out.getTo().getId() == connectionRef.getNodeId()) {
outgoingConnection = out;
}
}
if (outgoingConnection == null) {
throw new IllegalArgumentException("Could not find outgoing connection");
}
getSplit().setConstraint(outgoingConnection, (Constraint) element.getValue());
}
updateConnectionLabels();
} else {
super.setPropertyValue(id, value);
}
}
private void readObject(ObjectInputStream aInputStream) throws ClassNotFoundException, IOException {
aInputStream.defaultReadObject();
setDescriptors();
}
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 "";
}
}
}