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/*
 * 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.ruleflow.instance;

import java.util.List;

import org.jbpm.ruleflow.core.RuleFlowProcess;
import org.jbpm.workflow.core.node.StartNode;
import org.jbpm.workflow.instance.NodeInstance;
import org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl;
import org.kie.api.definition.process.Node;

public class RuleFlowProcessInstance extends WorkflowProcessInstanceImpl {

    private static final long serialVersionUID = 510l;
    
    public RuleFlowProcess getRuleFlowProcess() {
        return (RuleFlowProcess) getProcess();
    }

    public void internalStart(String trigger) {
    	StartNode startNode = getRuleFlowProcess().getStart(trigger);
        if (startNode != null) {
            ((NodeInstance) getNodeInstance(startNode)).trigger(null, null);
        } else if (!getRuleFlowProcess().isDynamic()) {
            throw new IllegalArgumentException("There is no start node that matches the trigger " + (trigger == null ? "none" : trigger));
        }
    	
    	// activate ad hoc fragments if they are marked as such
    	List autoStartNodes = getRuleFlowProcess().getAutoStartNodes();
    	autoStartNodes
    	    .forEach(austoStartNode -> signalEvent(austoStartNode.getName(), null));
    }

}