| /* |
| * 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.ode.bpel.extvar.jdbc; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.ode.utils.DOMUtils; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| /** |
| * Provides methods to serialize (into XML) the name-value pairs of an external-variable key map. |
| * |
| * @author Maciej Szefler <mszefler at gmail dot com> |
| * |
| */ |
| public class ExternalVariableKeyMapSerializer { |
| |
| /** |
| * Convert to XML from map. |
| * @param map |
| * @return |
| */ |
| public static Element toXML(Map<String,String> map) { |
| Document doc = DOMUtils.newDocument(); |
| Element el = doc.createElementNS(null,"external-variable-ref"); |
| for (Map.Entry<String, String> entry : map.entrySet()) { |
| Element nvel = doc.createElementNS(null,"nvpair"); |
| nvel.setAttribute("key", entry.getKey()); |
| if (entry.getValue() != null) |
| nvel.setAttribute("value", entry.getValue()); |
| el.appendChild(nvel); |
| } |
| return el; |
| |
| } |
| |
| /** |
| * Convert to map from XML. |
| * @param el |
| * @return |
| */ |
| public static Map<String, String> toMap(Element el) { |
| HashMap<String,String> ret = new HashMap<String,String>(); |
| if (el == null) |
| return ret; |
| NodeList nvs = el.getChildNodes(); |
| for (int i = 0; i < nvs.getLength(); ++i) { |
| Node n = nvs.item(i); |
| if (n.getNodeType() != Node.ELEMENT_NODE) |
| continue; |
| if (!n.getLocalName().equals("nvpair")) |
| continue; |
| String key = ((Element)n).getAttribute("key"); |
| String val = ((Element)n).getAttribute("value"); |
| ret.put(key, val); |
| } |
| return ret; |
| } |
| |
| } |