# ScriptMediatorSerializer.java

    /*
     *  Licensed to the Apache Software Foundation (ASF) under one
     *  or more contributor license agreements.  See the NOTICE file
     *  distributed with this work for additional information
     *  regarding copyright ownership.  The ASF licenses this file
     *  to you 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.apache.synapse.mediators.bsf;

    import org.apache.axiom.om.OMElement;
    import org.apache.axiom.om.impl.llom.OMTextImpl;
    import org.apache.commons.lang3.StringUtils;
    import org.apache.synapse.Mediator;
    import org.apache.synapse.config.xml.AbstractMediatorSerializer;
    import org.apache.synapse.config.xml.InputArgumentSerializer;
    import org.apache.synapse.config.xml.ValueSerializer;
    import org.apache.synapse.config.xml.XMLConfigConstants;
    import org.apache.synapse.mediators.Value;

    import javax.xml.stream.XMLStreamConstants;
    import java.util.Map;

    /**
     * Serializer for a script mediator
     *
     * @see org.apache.synapse.mediators.bsf.ScriptMediatorFactory
     */
    public class ScriptMediatorSerializer extends AbstractMediatorSerializer {

        public OMElement serializeSpecificMediator(Mediator m) {

            if (!(m instanceof ScriptMediator)) {
                handleException("Unsupported mediator passed in for serialization : " + m.getType());
            }

            ScriptMediator scriptMediator = (ScriptMediator) m;
            OMElement script = fac.createOMElement("script", synNS);

            String language = scriptMediator.getLanguage();
            Value key = scriptMediator.getKey();
            String function = scriptMediator.getFunction();
            ValueSerializer keySerializer = new ValueSerializer();

            if (key != null) {
                script.addAttribute(fac.createOMAttribute("language", nullNS, language));

                // Serialize Value using ValueSerializer
                keySerializer.serializeValue(key, XMLConfigConstants.KEY, script);

                if (!function.equals("mediate")) {
                    script.addAttribute(fac.createOMAttribute("function", nullNS, function));
                }
                if (StringUtils.isNotBlank(scriptMediator.getResultTarget())) {
                    // If result target is set, this is V2 script mediator
                    script.addAttribute(fac.createOMAttribute("result-target", nullNS, scriptMediator.getResultTarget()));
                    script.addChild(InputArgumentSerializer.serializeInputArguments(scriptMediator.getInputArgumentList()));
                }
            } else {
                script.addAttribute(fac.createOMAttribute("language", nullNS, language));
                OMTextImpl textData = (OMTextImpl) fac.createOMText(
                        scriptMediator.getScriptSrc().trim());
                textData.setType(XMLStreamConstants.CDATA);
                script.addChild(textData);
            }

            Map<Value, Object> includeMap = scriptMediator.getIncludeMap();
            for (Value includeKey : includeMap.keySet()) {
                if (includeKey != null) {
                    OMElement includeKeyElement = fac.createOMElement("include", synNS);

                    // Serialize Value using ValueSerializer
                    keySerializer.serializeValue(includeKey, XMLConfigConstants.KEY, includeKeyElement);

                    script.addChild(includeKeyElement);
                }
            }

            saveTracingState(script, scriptMediator);

            serializeComments(script, scriptMediator.getCommentsList());

            return script;
        }

        public String getMediatorClassName() {
            return ScriptMediator.class.getName();
        }
    }