| /* |
| * 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.config.xml; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.axiom.om.OMFactory; |
| import org.apache.axiom.om.OMAbstractFactory; |
| import org.apache.axiom.om.OMNamespace; |
| import org.apache.axiom.om.OMElement; |
| import org.apache.synapse.config.Entry; |
| import org.apache.synapse.SynapseException; |
| import org.apache.synapse.SynapseConstants; |
| import org.apache.synapse.config.SynapsePropertiesLoader; |
| |
| import javax.xml.namespace.QName; |
| import javax.xml.stream.XMLStreamConstants; |
| import java.net.URL; |
| |
| /** |
| * Serializer for {@link Entry} instances. |
| */ |
| public class EntrySerializer { |
| |
| private static Log log = LogFactory.getLog(EntrySerializer.class); |
| |
| protected static final OMFactory fac = OMAbstractFactory.getOMFactory(); |
| protected static final OMNamespace synNS = SynapseConstants.SYNAPSE_OMNAMESPACE; |
| protected static final OMNamespace nullNS |
| = fac.createOMNamespace(XMLConfigConstants.NULL_NAMESPACE, ""); |
| |
| /** |
| * Serialize the Entry object to an OMElement representing the entry |
| * @param entry |
| * @param parent |
| * @return OMElement representing the entry |
| */ |
| public static OMElement serializeEntry(Entry entry, OMElement parent) { |
| |
| String customFactory = SynapsePropertiesLoader.getPropertyValue("synapse.entry.serializer", ""); |
| if (customFactory != null && !"".equals(customFactory)) { |
| try { |
| Class c = Class.forName(customFactory); |
| Object o = c.newInstance(); |
| if (o instanceof IEntrySerializer) { |
| return ((IEntrySerializer) o).serializeEntry(entry, parent); |
| } |
| } catch (ClassNotFoundException e) { |
| handleException("Class specified by the synapse.entry.factory " + |
| "synapse property not found: " + customFactory, e); |
| } catch (InstantiationException e) { |
| handleException("Class specified by the synapse.entry.factory " + |
| "synapse property cannot be instantiated: " + customFactory, e); |
| } catch (IllegalAccessException e) { |
| handleException("Class specified by the synapse.entry.factory " + |
| "synapse property cannot be accessed: " + customFactory, e); |
| } |
| } |
| |
| OMElement entryElement = fac.createOMElement("localEntry", synNS); |
| |
| if (entry.getDescription() != null) { |
| |
| OMElement descriptionElem = fac.createOMElement( |
| new QName(SynapseConstants.SYNAPSE_NAMESPACE, "description")); |
| descriptionElem.setText(entry.getDescription()); |
| entryElement.addChild(descriptionElem); |
| } |
| |
| entryElement.addAttribute(fac.createOMAttribute( |
| "key", nullNS, entry.getKey().trim())); |
| int type = entry.getType(); |
| if (type == Entry.URL_SRC) { |
| URL srcUrl = entry.getSrc(); |
| if (srcUrl != null) { |
| entryElement.addAttribute(fac.createOMAttribute( |
| "src", nullNS, srcUrl.toString().trim())); |
| } |
| } else if (type == Entry.INLINE_XML) { |
| Object value = entry.getValue(); |
| if (value != null && value instanceof OMElement) { |
| entryElement.addChild((OMElement) value); |
| } |
| } else if (type == Entry.INLINE_TEXT) { |
| Object value = entry.getValue(); |
| if (value != null && value instanceof String) { |
| entryElement.addChild(fac.createOMText(((String) value).trim(), |
| XMLStreamConstants.CDATA)); |
| } |
| } else if (type == Entry.REMOTE_ENTRY) { |
| // nothing to serialize |
| return null; |
| } else { |
| handleException("Entry type undefined"); |
| } |
| |
| if (parent != null) { |
| parent.addChild(entryElement); |
| } |
| return entryElement; |
| } |
| |
| private static void handleException(String msg) { |
| log.error(msg); |
| throw new SynapseException(msg); |
| } |
| |
| private static void handleException(String msg, Exception e) { |
| log.error(msg, e); |
| throw new SynapseException(msg, e); |
| } |
| } |