org.jbpm.workflow.instance.node.StartNodeInstance Maven / Gradle / Ivy
/*
* Copyright 2017 Red Hat, Inc. and/or its affiliates.
*
* 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.workflow.instance.node;
import org.jbpm.process.core.context.variable.VariableScope;
import org.jbpm.process.core.event.EventTransformer;
import org.jbpm.process.instance.context.variable.VariableScopeInstance;
import org.jbpm.workflow.core.node.StartNode;
import org.jbpm.workflow.instance.impl.NodeInstanceImpl;
import org.kie.api.runtime.process.NodeInstance;
/**
* Runtime counterpart of a start node.
*
*/
public class StartNodeInstance extends NodeInstanceImpl {
private static final long serialVersionUID = 510l;
public void internalTrigger(final NodeInstance from, String type) {
if (type != null) {
throw new IllegalArgumentException(
"A StartNode does not accept incoming connections!");
}
if (from != null) {
throw new IllegalArgumentException(
"A StartNode can only be triggered by the process itself!");
}
triggerCompleted();
}
public void signalEvent(String type, Object event) {
String variableName = (String) getStartNode().getMetaData("TriggerMapping");
if (variableName != null) {
VariableScopeInstance variableScopeInstance = (VariableScopeInstance)
resolveContextInstance(VariableScope.VARIABLE_SCOPE, variableName);
if (variableScopeInstance == null) {
throw new IllegalArgumentException(
"Could not find variable for start node: " + variableName);
}
EventTransformer transformer = getStartNode().getEventTransformer();
if (transformer != null) {
event = transformer.transformEvent(event);
}
variableScopeInstance.setVariable(variableName, event);
}
triggerCompleted();
}
public StartNode getStartNode() {
return (StartNode) getNode();
}
public void triggerCompleted() {
((org.jbpm.workflow.instance.NodeInstanceContainer)getNodeInstanceContainer()).setCurrentLevel(getLevel());
triggerCompleted(org.jbpm.workflow.core.Node.CONNECTION_DEFAULT_TYPE, true);
}
}