/*
* 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.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) {
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) {
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;
}
}