org.apache.jackrabbit.webdav.bind.ParentElement Maven / Gradle / Ivy
/*
* 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.jackrabbit.webdav.bind;
import org.apache.jackrabbit.webdav.xml.XmlSerializable;
import org.apache.jackrabbit.webdav.xml.DomUtil;
import org.apache.jackrabbit.webdav.xml.ElementIterator;
import org.apache.jackrabbit.webdav.DavException;
import org.apache.jackrabbit.webdav.DavServletResponse;
import org.w3c.dom.Element;
import org.w3c.dom.Document;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* ParentElement wraps en element of the parent set of a resource. A java.util.Set of
* ParentElement objects may serve as the value object of the ParentSet DavProperty.
*/
public class ParentElement implements XmlSerializable {
private static Logger log = LoggerFactory.getLogger(ParentElement.class);
private final String href;
private final String segment;
public ParentElement(String href, String segment) {
this.href = href;
this.segment = segment;
}
public String getHref() {
return this.href;
}
public String getSegment() {
return this.segment;
}
/**
* Build an ParentElement object from an XML element DAV:parent
*
* @param root the DAV:parent element
* @return a ParentElement object
* @throws org.apache.jackrabbit.webdav.DavException if the DAV:parent element is malformed
*/
public static ParentElement createFromXml(Element root) throws DavException {
if (!DomUtil.matches(root, BindConstants.XML_PARENT, BindConstants.NAMESPACE)) {
log.warn("DAV:paret element expected");
throw new DavException(DavServletResponse.SC_BAD_REQUEST);
}
String href = null;
String segment = null;
ElementIterator it = DomUtil.getChildren(root);
while (it.hasNext()) {
Element elt = it.nextElement();
if (DomUtil.matches(elt, BindConstants.XML_SEGMENT, BindConstants.NAMESPACE)) {
if (segment == null) {
segment = DomUtil.getText(elt);
} else {
log.warn("unexpected multiple occurrence of DAV:segment element");
throw new DavException(DavServletResponse.SC_BAD_REQUEST);
}
} else if (DomUtil.matches(elt, BindConstants.XML_HREF, BindConstants.NAMESPACE)) {
if (href == null) {
href = DomUtil.getText(elt);
} else {
log.warn("unexpected multiple occurrence of DAV:href element");
throw new DavException(DavServletResponse.SC_BAD_REQUEST);
}
} else {
log.warn("unexpected element " + elt.getLocalName());
throw new DavException(DavServletResponse.SC_BAD_REQUEST);
}
}
if (href == null) {
log.warn("DAV:href element expected");
throw new DavException(DavServletResponse.SC_BAD_REQUEST);
}
if (segment == null) {
log.warn("DAV:segment element expected");
throw new DavException(DavServletResponse.SC_BAD_REQUEST);
}
return new ParentElement(href, segment);
}
/**
* @see org.apache.jackrabbit.webdav.xml.XmlSerializable#toXml(org.w3c.dom.Document)
*/
public Element toXml(Document document) {
Element parentElt = DomUtil.createElement(document, BindConstants.XML_PARENT, BindConstants.NAMESPACE);
Element hrefElt = DomUtil.createElement(document, BindConstants.XML_HREF, BindConstants.NAMESPACE, this.href);
Element segElt = DomUtil.createElement(document, BindConstants.XML_SEGMENT, BindConstants.NAMESPACE, this.segment);
parentElt.appendChild(hrefElt);
parentElt.appendChild(segElt);
return parentElt;
}
}