org.drools.bpmn2.xml.ActionNodeHandler Maven / Gradle / Ivy

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/**
 * 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.drools.bpmn2.xml;

import org.drools.compiler.xml.XmlDumper;
import org.drools.rule.builder.dialect.java.JavaDialect;
import org.drools.workflow.core.Node;
import org.drools.workflow.core.impl.DroolsConsequenceAction;
import org.drools.workflow.core.node.ActionNode;
import org.xml.sax.Attributes;

public class ActionNodeHandler extends AbstractNodeHandler {
    
    protected Node createNode(Attributes attrs) {
        throw new IllegalArgumentException("Reading in should be handled by specific handlers");
    }
    
    @SuppressWarnings("unchecked")
	public Class generateNodeFor() {
        return ActionNode.class;
    }

	public void writeNode(Node node, StringBuilder xmlDump, boolean includeMeta) {
		ActionNode actionNode = (ActionNode) node;
		DroolsConsequenceAction action = (DroolsConsequenceAction) actionNode.getAction();
		if (action != null) {
		    String s = action.getConsequence();
		    if (s.startsWith("org.drools.process.instance.impl.WorkItemImpl workItem = new org.drools.process.instance.impl.WorkItemImpl();")) {
                writeNode("intermediateThrowEvent", actionNode, xmlDump, includeMeta);
                xmlDump.append(">" + EOL);
                String variable = (String) actionNode.getMetaData("MappingVariable");
                if (variable != null) {
                    xmlDump.append(
                        "      " + EOL + 
                        "      " + EOL + 
                        "        " + XmlDumper.replaceIllegalChars(variable) + "" + EOL + 
                        "        " + XmlBPMNProcessDumper.getUniqueNodeId(actionNode) + "_Input" + EOL + 
                        "      " + EOL + 
                        "      " + EOL + 
                        "        " + XmlBPMNProcessDumper.getUniqueNodeId(actionNode) + "_Input" + EOL + 
                        "      " + EOL);
                }
                xmlDump.append("      " + EOL);
                endNode("intermediateThrowEvent", xmlDump);
            } else if (s.startsWith("kcontext.getKnowledgeRuntime().signalEvent(\"")) {
                writeNode("intermediateThrowEvent", actionNode, xmlDump, includeMeta);
                xmlDump.append(">" + EOL);
                s = s.substring(44);
                String type = s.substring(0, s.indexOf("\""));
                s = s.substring(s.indexOf(",") + 2);
                String variable = null;
                if (!s.startsWith("null")) {
                    variable = s.substring(0, s.indexOf(")"));
                    xmlDump.append(
                        "      " + EOL + 
                        "      " + EOL + 
                        "        " + XmlDumper.replaceIllegalChars(variable) + "" + EOL + 
                        "        " + XmlBPMNProcessDumper.getUniqueNodeId(actionNode) + "_Input" + EOL + 
                        "      " + EOL + 
                        "      " + EOL + 
                        "        " + XmlBPMNProcessDumper.getUniqueNodeId(actionNode) + "_Input" + EOL + 
                        "      " + EOL);
                }
                if (type.startsWith("Compensate-")) {
	                xmlDump.append("      " + EOL);
                } else {
	                xmlDump.append("      " + EOL);
                }
                endNode("intermediateThrowEvent", xmlDump);
            } else if (s.startsWith("kcontext.getProcessInstance().signalEvent(\"")) {
                writeNode("intermediateThrowEvent", actionNode, xmlDump, includeMeta);
                xmlDump.append(">" + EOL);
                s = s.substring(43);
                String type = s.substring(0, s.indexOf("\""));
                xmlDump.append("      " + EOL);
                endNode("intermediateThrowEvent", xmlDump);
            } else if (s.startsWith("org.drools.process.instance.context.exception.ExceptionScopeInstance scopeInstance = (org.drools.process.instance.context.exception.ExceptionScopeInstance) ((org.drools.workflow.instance.NodeInstance) kcontext.getNodeInstance()).resolveContextInstance(org.drools.process.core.context.exception.ExceptionScope.EXCEPTION_SCOPE, \"")) {
                writeNode("intermediateThrowEvent", actionNode, xmlDump, includeMeta);
                xmlDump.append(">" + EOL);
                s = s.substring(327);
                String type = s.substring(0, s.indexOf("\""));
                xmlDump.append("      " + EOL);
                endNode("intermediateThrowEvent", xmlDump);
            } else if ("IntermediateThrowEvent-None".equals(actionNode.getMetaData("NodeType"))) {
            	writeNode("intermediateThrowEvent", actionNode, xmlDump, includeMeta);
                endNode(xmlDump);
            } else {
                writeNode("scriptTask", actionNode, xmlDump, includeMeta);
                if (JavaDialect.ID.equals(action.getDialect())) {
                    xmlDump.append("scriptLanguage=\"" + XmlBPMNProcessDumper.JAVA_LANGUAGE + "\" ");
                }
                if (action.getConsequence() != null) {
                    xmlDump.append(">" + EOL + 
                        "      " + EOL);
                    endNode("scriptTask", xmlDump);
                } else {
                    endNode(xmlDump);
                }
            }
		} else {
		    writeNode("scriptTask", actionNode, xmlDump, includeMeta);
	        endNode(xmlDump);
		}
	}

}