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

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jBPM BPMN2
There is a newer version: 10.0.0
/*
 * Copyright 2021 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.HashMap;
import java.util.Map;

import org.drools.mvel.java.JavaDialect;
import org.jbpm.compiler.xml.Parser;
import org.jbpm.workflow.core.Node;
import org.jbpm.workflow.core.impl.DroolsConsequenceAction;
import org.jbpm.workflow.core.node.ActionNode;
import org.w3c.dom.Element;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

public class ScriptTaskHandler extends AbstractNodeHandler {

    private static Map SUPPORTED_SCRIPT_FORMATS = new HashMap<>();

    static {
        SUPPORTED_SCRIPT_FORMATS.put(XmlBPMNProcessDumper.JAVA_LANGUAGE, JavaDialect.ID);
        SUPPORTED_SCRIPT_FORMATS.put(XmlBPMNProcessDumper.FEEL_LANGUAGE, "FEEL");
        SUPPORTED_SCRIPT_FORMATS.put(XmlBPMNProcessDumper.FEEL_LANGUAGE_SHORT, "FEEL");
    }

    public static void registerSupportedScriptFormat(String language, String dialect) {
        SUPPORTED_SCRIPT_FORMATS.put(language, dialect);
    }

    protected Node createNode(Attributes attrs) {
        ActionNode result = new ActionNode();
        result.setAction(new DroolsConsequenceAction());
        return result;
    }

    public Class generateNodeFor() {
        return Node.class;
    }

    @Override
    protected Node handleNode(final Node node, final Element element, final String uri,
            final String localName, final Parser parser) throws SAXException {
        super.handleNode(node, element, uri, localName, parser);
        ActionNode actionNode = (ActionNode) node;
        node.setMetaData("NodeType", "ScriptTask");
        DroolsConsequenceAction action = (DroolsConsequenceAction) actionNode.getAction();
        if (action == null) {
            action = new DroolsConsequenceAction();
            actionNode.setAction(action);
        }
        String language = element.getAttribute("scriptFormat");
        action.setDialect(SUPPORTED_SCRIPT_FORMATS.getOrDefault(language, "java"));
        action.setConsequence("");
        final DroolsConsequenceAction scriptAction = action;
        readSingleChildElementByTag(element, "script").ifPresent(script -> {
            scriptAction.setConsequence(script.getTextContent());
        });

        actionNode.setMetaData("DataInputs", new HashMap());
        actionNode.setMetaData("DataOutputs", new HashMap());

        String compensation = element.getAttribute("isForCompensation");
        if (compensation != null) {
            boolean isForCompensation = Boolean.parseBoolean(compensation);
            if (isForCompensation) {
                actionNode.setMetaData("isForCompensation", isForCompensation);
            }
        }

        Node currentNode = actionNode;
        actionNode.setIoSpecification(readIOEspecification(parser, element));
        actionNode.setMultiInstanceSpecification(readMultiInstanceSpecification(parser, element, actionNode.getIoSpecification()));
        return currentNode;
    }

    public void writeNode(Node node, StringBuilder xmlDump, int metaDataType) {
        throw new IllegalArgumentException("Writing out should be handled by action node handler");
    }

}