/**
* Copyright 2010 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.jbpm.ruleflow.core;
import org.drools.definition.process.Node;
import org.drools.definition.process.NodeContainer;
import org.jbpm.process.core.context.exception.ExceptionScope;
import org.jbpm.process.core.context.swimlane.SwimlaneContext;
import org.jbpm.process.core.context.variable.VariableScope;
import org.jbpm.workflow.core.impl.NodeContainerImpl;
import org.jbpm.workflow.core.impl.WorkflowProcessImpl;
import org.jbpm.workflow.core.node.StartNode;
public class RuleFlowProcess extends WorkflowProcessImpl {
public static final String RULEFLOW_TYPE = "RuleFlow";
private static final long serialVersionUID = 510l;
public RuleFlowProcess() {
setType(RULEFLOW_TYPE);
// TODO create contexts on request ?
VariableScope variableScope = new VariableScope();
addContext(variableScope);
setDefaultContext(variableScope);
SwimlaneContext swimLaneContext = new SwimlaneContext();
addContext(swimLaneContext);
setDefaultContext(swimLaneContext);
ExceptionScope exceptionScope = new ExceptionScope();
addContext(exceptionScope);
setDefaultContext(exceptionScope);
}
public VariableScope getVariableScope() {
return (VariableScope) getDefaultContext(VariableScope.VARIABLE_SCOPE);
}
public SwimlaneContext getSwimlaneContext() {
return (SwimlaneContext) getDefaultContext(SwimlaneContext.SWIMLANE_SCOPE);
}
public ExceptionScope getExceptionScope() {
return (ExceptionScope) getDefaultContext(ExceptionScope.EXCEPTION_SCOPE);
}
protected NodeContainer createNodeContainer() {
return new WorkflowProcessNodeContainer();
}
public StartNode getStart() {
Node[] nodes = getNodes();
for (int i = 0; i < nodes.length; i++) {
if (nodes[i] instanceof StartNode) {
return (StartNode) nodes[i];
}
}
return null;
}
private class WorkflowProcessNodeContainer extends NodeContainerImpl {
private static final long serialVersionUID = 510l;
protected void validateAddNode(Node node) {
super.validateAddNode(node);
if ((node instanceof StartNode) && (getStart() != null)) {
throw new IllegalArgumentException(
"A RuleFlowProcess cannot have more than one start node!");
}
}
}
}