org.jbpm.bpmn2.xml.UserTaskHandler Maven / Gradle / Ivy

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jBPM BPMN2
There is a newer version: 7.74.1.Final
/**
 * Copyright 2010 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.bpmn2.xml;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.drools.compiler.compiler.xml.XmlDumper;
import org.drools.core.process.core.Work;
import org.drools.core.xml.ExtensibleXmlParser;
import org.jbpm.workflow.core.Node;
import org.jbpm.workflow.core.node.HumanTaskNode;
import org.jbpm.workflow.core.node.WorkItemNode;
import org.w3c.dom.Element;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

public class UserTaskHandler extends TaskHandler {
    
    protected Node createNode(Attributes attrs) {
        return new HumanTaskNode();
    }
    
    @SuppressWarnings("unchecked")
	public Class generateNodeFor() {
        return HumanTaskNode.class;
    }

    protected void handleNode(final Node node, final Element element, final String uri, 
            final String localName, final ExtensibleXmlParser parser) throws SAXException {
    	super.handleNode(node, element, uri, localName, parser);
    	HumanTaskNode humanTaskNode = (HumanTaskNode) node;
        Work work = humanTaskNode.getWork();
        work.setName("Human Task");
    	Map dataInputs = new HashMap();
    	Map dataOutputs = new HashMap();
    	List owners = new ArrayList();
    	org.w3c.dom.Node xmlNode = element.getFirstChild();
        while (xmlNode != null) {
        	String nodeName = xmlNode.getNodeName();
        	// ioSpec and data{Input,Output}Spec handled in super.handleNode(...)
        	if ("potentialOwner".equals(nodeName)) {
        		String owner = readPotentialOwner(xmlNode, humanTaskNode);
        		if (owner != null) {
        			owners.add(owner);
        		}
        	}
    		xmlNode = xmlNode.getNextSibling();
        }
        if (owners.size() > 0) {
        	String owner = owners.get(0);
        	for (int i = 1; i < owners.size(); i++) {
        		owner += "," + owners.get(i);
        	}
        	humanTaskNode.getWork().setParameter("ActorId", owner);        	
        }
        humanTaskNode.getWork().setParameter("NodeName", humanTaskNode.getName() ); 
    }
    
    protected String readPotentialOwner(org.w3c.dom.Node xmlNode, HumanTaskNode humanTaskNode) {
    	org.w3c.dom.Node node = xmlNode.getFirstChild();
		if (node != null) {
			node = node.getFirstChild();
			if (node != null) {
				node = node.getFirstChild();
				if (node != null) {
					return node.getTextContent();
				}
			}
		}
		return null;
    }
    
	public void writeNode(Node node, StringBuilder xmlDump, int metaDataType) {
		HumanTaskNode humanTaskNode = (HumanTaskNode) node;
		writeNode("userTask", humanTaskNode, xmlDump, metaDataType);
		xmlDump.append(">" + EOL);
		writeExtensionElements(humanTaskNode, xmlDump);
		writeIO(humanTaskNode, xmlDump);
		String ownerString = (String) humanTaskNode.getWork().getParameter("ActorId");
		if (ownerString != null) {
			String[] owners = ownerString.split(",");
			for (String owner: owners) {
				xmlDump.append(
					"      " + EOL +
					"        " + EOL +
					"          " + owner + "" + EOL +
					"        " + EOL +
					"      " + EOL);
			}
		}
		endNode("userTask", xmlDump);
	}

	protected void writeIO(WorkItemNode workItemNode, StringBuilder xmlDump) {
		xmlDump.append("      " + EOL);
		for (Map.Entry entry: workItemNode.getInMappings().entrySet()) {
			xmlDump.append("        " + EOL);
		}
		for (Map.Entry entry: workItemNode.getWork().getParameters().entrySet()) {
			if (!"ActorId".equals(entry.getKey()) && entry.getValue() != null) {
				xmlDump.append("        " + EOL);
			}
		}
		for (Map.Entry entry: workItemNode.getOutMappings().entrySet()) {
			xmlDump.append("        " + EOL);
		}
		xmlDump.append("        " + EOL);
		for (Map.Entry entry: workItemNode.getInMappings().entrySet()) {
			xmlDump.append("          " + XmlBPMNProcessDumper.getUniqueNodeId(workItemNode) + "_" + XmlDumper.replaceIllegalChars(entry.getKey()) + "Input" + EOL);
		}
		for (Map.Entry entry: workItemNode.getWork().getParameters().entrySet()) {
			if (!"ActorId".equals(entry.getKey()) && entry.getValue() != null) {
				xmlDump.append("          " + XmlBPMNProcessDumper.getUniqueNodeId(workItemNode) + "_" + XmlDumper.replaceIllegalChars(entry.getKey()) + "Input" + EOL);
			}
		}
		xmlDump.append(
			"        " + EOL);
		xmlDump.append("        " + EOL);
		for (Map.Entry entry: workItemNode.getOutMappings().entrySet()) {
			xmlDump.append("          " + XmlBPMNProcessDumper.getUniqueNodeId(workItemNode) + "_" + XmlDumper.replaceIllegalChars(entry.getKey()) + "Output" + EOL);
		}
		xmlDump.append(
			"        " + EOL);
		xmlDump.append(
			"      " + EOL);
		for (Map.Entry entry: workItemNode.getInMappings().entrySet()) {
			xmlDump.append("      " + EOL);
			xmlDump.append(
				"        " + XmlDumper.replaceIllegalChars(entry.getValue()) + "" + EOL +
				"        " + XmlBPMNProcessDumper.getUniqueNodeId(workItemNode) + "_" + XmlDumper.replaceIllegalChars(entry.getKey()) + "Input" + EOL);
			xmlDump.append("      " + EOL);
		}
		for (Map.Entry entry: workItemNode.getWork().getParameters().entrySet()) {
			if (!"ActorId".equals(entry.getKey()) && entry.getValue() != null) {
				xmlDump.append("      " + EOL);
				xmlDump.append(
					"        " + XmlBPMNProcessDumper.getUniqueNodeId(workItemNode) + "_" + XmlDumper.replaceIllegalChars(entry.getKey()) + "Input" + EOL +
					"        " + EOL +
					"          " + XmlDumper.replaceIllegalChars(entry.getValue().toString()) + "" + EOL +
					"          " + XmlBPMNProcessDumper.getUniqueNodeId(workItemNode) + "_" + XmlDumper.replaceIllegalChars(entry.getKey()) + "Input" + EOL +
					"        " + EOL);
				xmlDump.append("      " + EOL);
			}
		}
		for (Map.Entry entry: workItemNode.getOutMappings().entrySet()) {
			xmlDump.append("      " + EOL);
			xmlDump.append(
				"        " + XmlBPMNProcessDumper.getUniqueNodeId(workItemNode) + "_" + XmlDumper.replaceIllegalChars(entry.getKey()) + "Output" + EOL +
				"        " + XmlDumper.replaceIllegalChars(entry.getValue()) + "" + EOL);
			xmlDump.append("      " + EOL);
		}
	}

}