/**
* Copyright 2005-2014 Restlet
*
* The contents of this file are subject to the terms of one of the following
* open source licenses: Apache 2.0 or or EPL 1.0 (the "Licenses"). You can
* select the license that you prefer but you may not use this file except in
* compliance with one of these Licenses.
*
* You can obtain a copy of the Apache 2.0 license at
* http://www.opensource.org/licenses/apache-2.0
*
* You can obtain a copy of the EPL 1.0 license at
* http://www.opensource.org/licenses/eclipse-1.0
*
* See the Licenses for the specific language governing permissions and
* limitations under the Licenses.
*
* Alternatively, you can obtain a royalty free commercial license with less
* limitations, transferable or non-transferable, directly at
* http://restlet.com/products/restlet-framework
*
* Restlet is a registered trademark of Restlet S.A.S.
*/
package org.restlet.example.book.restlet.ch04.sec2.sub6;
import java.io.IOException;
import org.restlet.data.LocalReference;
import org.restlet.data.Reference;
import org.restlet.ext.xml.DomRepresentation;
import org.restlet.representation.Representation;
import org.restlet.resource.ClientResource;
import org.restlet.resource.Get;
import org.restlet.resource.Put;
import org.restlet.resource.ResourceException;
import org.restlet.resource.ServerResource;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
/**
* Resource corresponding to a mail received or sent with the parent mail
* account. Leverages XML Schema validation.
*/
public class MailServerResource extends ServerResource {
@Get
public Representation toXml() throws IOException {
// Create a new DOM representation
DomRepresentation result = new DomRepresentation();
result.setIndenting(true);
// XML namespace configuration
result.setNamespaceAware(true);
// Populate the DOM document
Document doc = result.getDocument();
Node mailElt = doc.createElementNS(
"http://www.rmep.org/namespaces/1.0", "mail");
doc.appendChild(mailElt);
Node statusElt = doc.createElement("status");
statusElt.setTextContent("received");
mailElt.appendChild(statusElt);
Node subjectElt = doc.createElement("subject");
subjectElt.setTextContent("Message to self");
mailElt.appendChild(subjectElt);
Node contentElt = doc.createElement("content");
contentElt.setTextContent("Doh!");
mailElt.appendChild(contentElt);
Node accountRefElt = doc.createElement("accountRef");
accountRefElt.setTextContent(new Reference(getReference(), "..")
.getTargetRef().toString());
mailElt.appendChild(accountRefElt);
return result;
}
@Put
public void store(DomRepresentation mailRep) throws IOException {
// Configure the XML Schema used for validation
Representation mailXsd = new ClientResource(
LocalReference.createClapReference(getClass().getPackage())
+ "/Mail.xsd").get();
mailRep.setSchema(mailXsd);
mailRep.setErrorHandler(new ErrorHandler() {
public void error(SAXParseException exception) throws SAXException {
throw new ResourceException(exception);
}
public void fatalError(SAXParseException exception)
throws SAXException {
throw new ResourceException(exception);
}
public void warning(SAXParseException exception)
throws SAXException {
throw new ResourceException(exception);
}
});
// XML namespace configuration
String rmepNs = "http://www.rmep.org/namespaces/1.0";
mailRep.setNamespaceAware(true);
mailRep.getNamespaces().put("", rmepNs);
mailRep.getNamespaces().put("rmep", rmepNs);
// Retrieve the XML element using XPath expressions
String status = mailRep.getText("/:mail/:status");
String subject = mailRep.getText("/rmep:mail/:subject");
String content = mailRep.getText("/rmep:mail/rmep:content");
String accountRef = mailRep.getText("/:mail/rmep:accountRef");
// Output the XML element values
System.out.println("Status: " + status);
System.out.println("Subject: " + subject);
System.out.println("Content: " + content);
System.out.println("Account URI: " + accountRef);
}
}