| /* |
| * 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.synapse.SynapseConstants; |
| import org.apache.synapse.config.SynapseConfigUtils; |
| import org.apache.synapse.config.SynapsePropertiesLoader; |
| import org.apache.synapse.config.XMLToObjectMapper; |
| import org.apache.synapse.config.Entry; |
| import org.apache.synapse.SynapseException; |
| import org.apache.axiom.om.OMNode; |
| import org.apache.axiom.om.OMElement; |
| import org.apache.axiom.om.OMAttribute; |
| import org.apache.axiom.om.OMText; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import javax.xml.namespace.QName; |
| import java.net.URL; |
| import java.net.MalformedURLException; |
| import java.util.Properties; |
| |
| /** |
| * Factory for {@link Entry} instances. |
| */ |
| public class EntryFactory implements XMLToObjectMapper { |
| |
| private static Log log = LogFactory.getLog(EntryFactory.class); |
| |
| private static final QName DESCRIPTION_Q |
| = new QName(SynapseConstants.SYNAPSE_NAMESPACE, "description"); |
| |
| public static Entry createEntry(OMElement elem, Properties properties) { |
| String customFactory = SynapsePropertiesLoader.getPropertyValue("synapse.entry.factory", ""); |
| if (customFactory != null && !"".equals(customFactory)) { |
| try { |
| Class c = Class.forName(customFactory); |
| Object o = c.newInstance(); |
| if (o instanceof IEntryFactory) { |
| return ((IEntryFactory)o).createEntry(elem); |
| } |
| } 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); |
| } |
| } |
| |
| OMAttribute key = elem.getAttribute(new QName(XMLConfigConstants.NULL_NAMESPACE, "key")); |
| if (key == null) { |
| handleException("The 'key' attribute is required for a local registry entry"); |
| return null; |
| |
| } else { |
| |
| Entry entry = new Entry(key.getAttributeValue()); |
| |
| OMElement descriptionElem = elem.getFirstChildWithName(DESCRIPTION_Q); |
| if (descriptionElem != null) { |
| entry.setDescription(descriptionElem.getText()); |
| descriptionElem.detach(); |
| } |
| |
| String src = elem.getAttributeValue( |
| new QName(XMLConfigConstants.NULL_NAMESPACE, "src")); |
| |
| // if a src attribute is present, this is a URL source resource, |
| // it would now be loaded from the URL source, as all static properties |
| // are initialized at startup |
| if (src != null) { |
| try { |
| entry.setSrc(new URL(src.trim())); |
| entry.setType(Entry.URL_SRC); |
| entry.setValue(SynapseConfigUtils.getObject(entry.getSrc(), properties)); |
| } catch (MalformedURLException e) { |
| handleException("The entry with key : " + key + " refers to an invalid URL"); |
| } |
| |
| } else { |
| OMNode nodeValue = elem.getFirstOMChild(); |
| OMElement elemValue = elem.getFirstElement(); |
| |
| if (elemValue != null) { |
| entry.setType(Entry.INLINE_XML); |
| entry.setValue(elemValue); |
| } else if (nodeValue != null && nodeValue instanceof OMText) { |
| entry.setType(Entry.INLINE_TEXT); |
| entry.setValue(elem.getText()); |
| } |
| } |
| |
| return entry; |
| } |
| } |
| |
| private static void handleException(String msg, Exception e) { |
| log.error(msg, e); |
| throw new SynapseException(msg, e); |
| } |
| |
| private static void handleException(String msg) { |
| log.error(msg); |
| throw new SynapseException(msg); |
| } |
| |
| public Object getObjectFromOMNode(OMNode om, Properties properties) { |
| if (om instanceof OMElement) { |
| return createEntry((OMElement) om, properties); |
| } else { |
| handleException("Invalid XML configuration for an Entry. OMElement expected"); |
| } |
| return null; |
| } |
| } |