/* See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* Esri Inc. 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 com.esri.gpt.server.csw.provider;
import com.esri.gpt.framework.security.principal.Publisher;
import com.esri.gpt.server.csw.provider.components.OperationContext;
import com.esri.gpt.server.csw.provider.components.OwsException;
import java.util.logging.Logger;
import javax.servlet.http.HttpServletRequest;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* Provides the CSW Transaction/Update operation.
*/
public class UpdateProvider extends InsertProvider {
/** class variables ========================================================= */
/** The Logger. */
private static Logger LOGGER = Logger.getLogger(UpdateProvider.class.getName());
/** constructors ============================================================ */
/** Default constructor */
public UpdateProvider() {
super();
}
/** methods ================================================================= */
/**
* Handles a URL based request (HTTP GET).
* @param context the operation context
* @param request the HTTP request
* @throws Exception if a processing exception occurs
*/
public void handleGet(OperationContext context, HttpServletRequest request)
throws Exception {
// initialize
LOGGER.finer("Handling csw:Transaction/csw:Update request URL...");
throw new OwsException("HTTP Get is not supported for this operation.");
}
/**
* Handles an XML based request (normally HTTP POST).
* @param context the operation context
* @param root the root node
* @param xpath an XPath to enable queries (properly configured with name spaces)
* @throws Exception if a processing exception occurs
*/
public void handleXML(OperationContext context, Node root, XPath xpath)
throws Exception {
// initialize
LOGGER.finer("Handling csw:Transaction/csw:Update request XML...");
Publisher publisher = new Publisher(context.getRequestContext());;
// find all the Update nodes
String locator = "csw:Update";
NodeList nlActions = (NodeList)xpath.evaluate(locator,root,XPathConstants.NODESET);
if (nlActions != null) {
for (int i=0;i<nlActions.getLength();i++) {
Node ndAction = nlActions.item(i);
String typeName = xpath.evaluate("@typeName",ndAction);
String handle = xpath.evaluate("@handle",ndAction);
// updates based upon constraints and record properties are not supported
locator = "csw:Constraint";
Node nd = (Node)xpath.evaluate(locator,ndAction,XPathConstants.NODE);
if (nd != null) {
String msg = "Update transactions based upon "+locator+" are not supported.";
throw new OwsException(OwsException.OWSCODE_OperationNotSupported,locator,msg);
}
locator = "csw:RecordProperty";
nd = (Node)xpath.evaluate("csw:RecordProperty",ndAction,XPathConstants.NODE);
if (nd != null) {
String msg = "Update transactions based upon "+locator+" are not supported.";
throw new OwsException(OwsException.OWSCODE_OperationNotSupported,locator,msg);
}
// publish all XML documents contained
NodeList nlXmls = ndAction.getChildNodes();
this.processDocumentNodes(context,publisher,typeName,handle,nlXmls);
}
}
// generate the response
this.generateResponse(context);
}
}