We Keep Coding

Add QName as string to #XmlMixed#XmlAnyElement(lax = true) list

Sorry for the foggy title, I know it does not tell much.
Please consider the following xsd type definition:
<xsd:complexType name="TopicExpressionType" mixed="true">
<xsd:sequence>
<xsd:any processContents="lax" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="Dialect" type="xsd:anyURI" use="required"/>
<xsd:anyAttribute/>
</xsd:complexType>
Complete XSD: http://docs.oasis-open.org/wsn/b-2.xsd
Corresponding JAXB generated Java class:
package org.oasis_open.docs.wsn.b_2;
import org.w3c.dom.Element;
import javax.xml.bind.annotation.*;
import javax.xml.namespace.QName;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
#XmlAccessorType(XmlAccessType.FIELD)
#XmlType(name = "TopicExpressionType", propOrder = {
"content"
})
public class TopicExpressionType {
#XmlMixed
#XmlAnyElement(lax = true)
protected List<Object> content;
#XmlAttribute(name = "Dialect", required = true)
#XmlSchemaType(name = "anyURI")
protected String dialect;
#XmlAnyAttribute
private Map<QName, String> otherAttributes = new HashMap<QName, String>();
public List<Object> getContent() {
if (content == null) {
content = new ArrayList<Object>();
}
return this.content;
}
public String getDialect() {
return dialect;
}
public void setDialect(String value) {
this.dialect = value;
}
public Map<QName, String> getOtherAttributes() {
return otherAttributes;
}
}
The first goal is to produce an XML like this with JAXB:
<wsnt:TopicExpression Dialect="http://docs.oasis-open.org/wsn/t-1/TopicExpression/Concrete" xmlns:tns="http://my.org/TopicNamespace">
tns:t1/*/t3
</wsnt:TopicExpression>
Please note the followings:
The value of the TopicExpression element is basically a query string that refers to QNames. Example: tns:t1/*/t3
The value of the TopicExpression element contains one or more QName like strings (tns:t1). It must be a string as in the example, it cannot be an Element (e.g.: <my-expresseion>tns:t1/*/t3<my-expresseion/>)
The value of the TopicExpression element is an arbitrary string (at least from the schema's perspective, it follows the rules defined here: https://docs.oasis-open.org/wsn/wsn-ws_topics-1.3-spec-os.pdf page 18)
Even though the value is a string, I need to define the corresponding name space declarations. So if I have an expression like this:
tns:t1 then xmlns:tns has to be declared. If my expresseion is tns:t1/*/tns2:t3 then both xmlns:tns and xmlns:tns2 have to be declared.
The second goal is to get the value of TopicExpression on the other side together with the namespace, using JAXB.
I am completely stuck, I don't know how I could implement this. My only idea is to manually build the value for the TopicExpression and somehow tell the marshaller to include the related namespace declaration despite there is no actual element using it.
Update
Example for a complete SOAP request that includes the before mentioned TopicExpression:
<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope">
<env:Header>
<Action xmlns="http://www.w3.org/2005/08/addressing">http://docs.oasis-open.org/wsn/bw-2/NotificationProducer/SubscribeRequest</Action>
<MessageID xmlns="http://www.w3.org/2005/08/addressing">urn:uuid:57182d32-4e07-4f5f-8ab3-24838b3e33ac</MessageID>
</env:Header>
<env:Body>
<ns3:Subscribe xmlns:ns3="http://docs.oasis-open.org/wsn/b-2" xmlns:ns4="http://www.w3.org/2005/08/addressing" >
<ns3:ConsumerReference>
<ns4:Address>http://my-notification-consumer-url</ns4:Address>
</ns3:ConsumerReference>
<ns3:Filter>
<ns3:TopicExpression Dialect="http://docs.oasis-open.org/wsn/t-1/TopicExpression/Simple" xmlns:ns5="http://my.org/TopicNamespace" xmlns:ns6="http://extension.org/TopicNamespace">
ns5:t1/*/ns6:t3
<ns3:TopicExpression/>
</ns3:Filter>
</ns3:Subscribe>
</env:Body>
</env:Envelope>

Not sure, If I have understood your requirement correctly. See if this code sample is helpful for you. If not then maybe try to edit your question a bit and make me understand what exactly you are looking for. I will try to modify and update the code accordingly. Trying with a simple example would be better than providing the complete XSD. Also, look into the following methods: beforeMarshal and afterUnmarshal.
Following is the XML I am trying to marshal and unmarshal
<tns:TopicExpression Dialect="http://docs.oasis-open.org/wsn/t-1/TopicExpression/Concrete" xmlns:tns="http://my.org/TopicNamespace">
tns:t1/*/t3
</tns:TopicExpression>
TopicExpressionType.class:
#Data
#XmlAccessorType(XmlAccessType.FIELD)
public class TestPojo {
#XmlValue
private String TopicExpression;
#XmlAnyAttribute
private Map<String, Object> anyAttributes = new HashMap<>();
}
Main.class:
public class Main {
public static void main(String[] args) throws JAXBException, XMLStreamException {
final InputStream inputStream = Unmarshalling.class.getClassLoader().getResourceAsStream("topic.xml");
final XMLStreamReader xmlStreamReader = XMLInputFactory.newInstance().createXMLStreamReader(inputStream);
final Unmarshaller unmarshaller = JAXBContext.newInstance(TestPojo.class).createUnmarshaller();
final TestPojo topic = unmarshaller.unmarshal(xmlStreamReader, TestPojo.class).getValue();
System.out.println(topic.toString());
StringWriter stringWriter = new StringWriter();
Map<String, String> namespaces = new HashMap<String, String>();
namespaces.put("http://my.org/TopicNamespace", "tns");
Marshaller marshaller = JAXBContext.newInstance(TestPojo.class).createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FRAGMENT, Boolean.TRUE);
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
marshaller.setProperty(MarshallerProperties.NAMESPACE_PREFIX_MAPPER, namespaces);
QName qName = new QName("http://my.org/TopicNamespace","TopicExpression","tns");
JAXBElement<TestPojo> root = new JAXBElement<TestPojo>(qName, TestPojo.class, topic);
marshaller.marshal(root, stringWriter);
String result = stringWriter.toString();
System.out.println(result);
}
}
As you can see as of now I have populated the namespaces map directly. If this is dynamic then you can populate the same in a map and accordingly you can add it while marshaling.
This will provide the following output during the unmarshalling:
TestPojo(TopicExpression=
tns:t1/*/t3
, anyAttributes={Dialect=http://docs.oasis-open.org/wsn/t-1/TopicExpression/Concrete})
During marshaling:
<tns:TopicExpression xmlns:tns="http://my.org/TopicNamespace" Dialect="http://docs.oasis-open.org/wsn/t-1/TopicExpression/Concrete">
tns:t1/*/t3
</tns:TopicExpression>

So the solution I've implemented:
Created a new TopicExpressionType class which has fields not only for the expression but for the namespaces too, used in the expression:
public class TopicExpressionType {
String dialect;
String expression;
List<Namespace> namespaces;
public TopicExpressionType(String dialect, String expression, List<Namespace> namespaces) {
this.dialect = dialect;
this.expression = expression;
this.namespaces = namespaces;
}
public static class Namespace {
String prefix;
String namespace;
public Namespace(String prefix, String namespace) {
this.prefix = prefix;
this.namespace = namespace;
}
public String getPrefix() {
return prefix;
}
public String getNamespace() {
return namespace;
}
}
}
Then implemented an XmlAdapter that is aware of the specifics, knows how to extract namespace prefixes from the expression string and it can read/write namespace declarations on the TopicExpression XML element:
public class TopicExpressionTypeAdapter extends XmlAdapter<Element, TopicExpressionType> {
#Override
public Element marshal(TopicExpressionType topicExpression) throws Exception {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document document = db.newDocument();
Element element = document.createElementNS("http://docs.oasis-open.org/wsn/b-2", "mns1:TopicExpression");
element.setAttribute("Dialect", topicExpression.getDialect());
element.setTextContent(topicExpression.getExpression());
for (var ns : topicExpression.namespaces) {
element.setAttribute("xmlns:" + ns.prefix, ns.namespace);
}
return element;
}
#Override
public TopicExpressionType unmarshal(Element arg0) throws Exception {
if (arg0.getFirstChild() instanceof Text text) {
var expression = text.getData();
if (expression == null || expression.isBlank())
throw new TopicExpressionAdapterException("Empty content");
// Extract the prefixes from the expression
var namespacePrefixes = new ArrayList<String>();
getNamespacePrefixes(expression, namespacePrefixes);
//Now get the namespaces for the prefixes
var nsMap = new ArrayList<TopicExpressionType.Namespace>();
for (var prefix : namespacePrefixes) {
var namespace = arg0.getAttribute("xmlns:" + prefix);
if (namespace == null || namespace.isBlank())
throw new TopicExpressionAdapterException("Missing namespace declaration for the following prefix: " + prefix);
nsMap.add(new TopicExpressionType.Namespace(prefix, namespace));
}
var dialect = arg0.getAttribute("Dialect");
if (dialect == null || dialect.isBlank())
throw new TopicExpressionAdapterException("Missing Dialect attribute");
return new TopicExpressionType(dialect, expression, nsMap);
} else {
throw new TopicExpressionAdapterException("Unexpected child element type: " + arg0.getFirstChild().getClass().getName());
}
}
public static class TopicExpressionAdapterException extends Exception {
public TopicExpressionAdapterException(String message) {
super(message);
}
}
}
Note: Implementation of the getNamespacePrefixes() method is left out intentionally from this answer.
The last step is to add the following annotation wherever the TopicExpressionType is used in JAXB generated classes:
#XmlJavaTypeAdapter(TopicExpressionTypeAdapter.class)
TopicExpressionType topicExpression;

JAK generated KML not work with Google My Maps

I write manually a KML file trying to import some polygons in MyMaps. This way works fine:
<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://earth.google.com/kml/2.0">
<Document>
<Placemark>
<Style>
<PolyStyle>
<color>#a00000ff</color>
<outline>0</outline>
</PolyStyle>
</Style>
<Polygon>
<outerBoundaryIs>
<LinearRing>
<coordinates>9.184254,45.443636 9.183379,45.434288 9.224836,45.431499 9.184254,45.443636</coordinates>
</LinearRing>
</outerBoundaryIs>
</Polygon>
</Placemark>
</Document>
</kml>
I try to write a java program using JAK that generate a most possibile equal file, but it doesn't work with Maps
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns3:kml xmlns:atom="http://www.w3.org/2005/Atom" xmlns:ns3="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.google.com/kml/ext/2.2" xmlns:xal="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0">
<ns3:Document>
<ns3:Placemark>
<ns3:Style>
<ns3:PolyStyle>
<ns3:color>#EABCFF</ns3:color>
<ns3:outline>0</ns3:outline>
</ns3:PolyStyle>
</ns3:Style>
<ns3:Polygon>
<ns3:innerBoundaryIs>
<ns3:LinearRing>
<ns3:coordinates>9.184254,45.443636 9.183379,45.434288 9.224836,45.431499 9.184254,45.443636</ns3:coordinates>
</ns3:LinearRing>
</ns3:innerBoundaryIs>
</ns3:Polygon>
</ns3:Placemark>
</ns3:Document>
</ns3:kml>
That's program:
public static void main(String[] args) throws IOException {
// Style
PolyStyle polystyle = KmlFactory.createPolyStyle();
polystyle.setColor("#EABCFF");
// polystyle.setFill(true);
polystyle.setOutline(false);
//
Kml kml = KmlFactory.createKml();
Document document = kml.createAndSetDocument();
Placemark pm = document.createAndAddPlacemark();
LinearRing linearRing = pm.createAndSetPolygon().createAndAddInnerBoundaryIs().createAndSetLinearRing();
linearRing.addToCoordinates(9.184254, 45.443636, 0);
linearRing.addToCoordinates(9.183379, 45.434288, 0);
linearRing.addToCoordinates(9.224836, 45.431499, 0);
linearRing.addToCoordinates(9.184254, 45.443636, 0);
pm.createAndAddStyle().setPolyStyle(polystyle);
//
kml.marshal(new FileWriter("D:/prova.kml"));
}

I view <ns3: in your kml this make the kml invalid for google maps
Try to correct the file

I had the same problem.
Instead of using kml.marshal(new FileWriter("D:/prova.kml")); I did this...
String name = kml.getClass().getSimpleName();
if ("Kml".equals(name)) {
name = name.toLowerCase();
}
JAXBContext jaxbContext = JAXBContext.newInstance(Kml.class);
Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
// output pretty printed
jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
jaxbMarshaller.setProperty("com.sun.xml.bind.namespacePrefixMapper", new NameSpaceBeautyfier());
JAXBElement<Kml> jaxbKml = new JAXBElement<>(new QName("http://www.opengis.net/kml/2.2", name), (Class<Kml>) kml.getClass(), kml);
jaxbMarshaller.marshal(jaxbKml, file);
With a NameSpaceBeautifier like this ...
private static final class NameSpaceBeautyfier extends NamespacePrefixMapper {
private static final String KML_PREFIX = ""; // DEFAULT NAMESPACE
private static final String KML_URI= "http://www.opengis.net/kml/2.2";
#Override
public String getPreferredPrefix(String namespaceUri, String suggestion, boolean requirePrefix) {
if(KML_URI.equals(namespaceUri)) {
return KML_PREFIX;
}
return suggestion;
}
#Override
public String[] getPreDeclaredNamespaceUris() {
return new String[] { KML_URI };
}
private NameSpaceBeautyfier() {
}
}
Hope this helps..

How to format xml instead of original format in springMVC (Restful webservice)

Currently, I want to return the return xml result with XML with the below format :
I tried to use something like this
#XmlRootElement(name = "item")
public class Book implements Serializable {
#XmlAttribute
public int getBookId() {
return bookId;
}
...
....
and
#XmlRootElement(name = "OneBoxResults")
public class JavaClazz {
private List<Book> OneBoxResults;
public List<Book> getOneBoxResults() {
return OneBoxResults;
}
#XmlElements(#XmlElement(name = "book", type = Book.class))
public void setOneBoxResults(List<Book> oneBoxResults) {
OneBoxResults = oneBoxResults;
}
...
However, the return result which I received is only Json format as below :
{"oneBoxResults":[{"bookId":1,"bookName":"Search
Deployment","update":"2014-01-07","description":"A successful deployment
typically involves the following
elements:","path":null},{"bookId":2,"bookName":"GSA
Information","update":"2015-01-07","description":"Configure the OneBox
module so it sends search queries to the provider (a custom
application","path":null}]}
I also attemped to create new format in controller as below :
#RequestMapping(value = "/rest.oneboxSample",produces = MediaType.APPLICATION_XML_VALUE, method = RequestMethod.GET)
public #ResponseBody String oneboxSample(){
String tmpOpenField = "<Field name=\"";
String tmpCloseField = "</Field>";
StringBuilder builder = new StringBuilder();
builder.append("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
builder.append("<OneBoxResults>").append("<resultCode>");
builder.append("Listbook").append("<resultCode>");
for(int i = 0; i < bookDao.getBooks().size(); i++){
Book tmpBook = bookDao.getBooks().get(i);
builder.append("<MODULE_RESULT>");
builder.append(tmpOpenField).append("bookId\">").append(tmpBook.getBookId()).append(tmpCloseField);
builder.append(tmpOpenField).append("bookName\">").append(tmpBook.getBookName()).append(tmpCloseField);
builder.append(tmpOpenField).append("update\">").append(tmpBook.getUpdate()).append(tmpCloseField);
builder.append(tmpOpenField).append("description\">").append(tmpBook.getDescription()).append(tmpCloseField);
builder.append(tmpOpenField).append("path\">").append(tmpBook.getPath()).append(tmpCloseField);
builder.append("</MODULE_RESULT>");
}
builder.append("</OneBoxResults>");
return builder.toString();
}
But the result is not good. It returned a string instead of xml format which we need.
Now, our system need to receive a xml format instead of an original xml format.
Please tell me know the way to do it .
The below is my source code which I wrote
https://www.dropbox.com/s/4tyg0kp7gkzodod/onebox-service.zip?dl=0
Thanks,

Get schema location from XML file (noNamespaceSchemaLocation)

We are parsing an XML file with the SAX parser. Is it possible to get the schema location from the XML?
<view id="..." title="..."
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="{schema}">
I want to retrieve the {schema} value from the XML. Is this possible? And how to I access this value of noNamespaceSchemaLocation? I'm using the default SAX Parser.
#Override
public void startElement(String uri, String localName,
String name, Attributes attributes)
{ .... }
Thank you.

It all depends with what kind of tool/library you are working (a basic SAXParser? Xerces? JDom? ...) But what you want is the value of the attribute "noNamespaceSchemaLocation" in the namspace defined by the URI "http://www.w3.org/2001/XMLSchema-instance"
in JDom, it would be something like:
Element view = ...; // get the view element
String value = view.getAttributeValue("noNamespaceSchemaLocation", Namespace.getNamespace("http://www.w3.org/2001/XMLSchema-instance"));

Here is how I get the XSD's name using XMLStreamReader:
public static String extractXsdValueOrNull(#NonNull final InputStream xmlInput)
{
final XMLInputFactory f = XMLInputFactory.newInstance();
try
{
final XMLStreamReader r = f.createXMLStreamReader(xmlInput);
while (r.hasNext())
{
final int eventType = r.next();
if (XMLStreamReader.START_ELEMENT == eventType)
{
for (int i = 0; i <= r.getAttributeCount(); i++)
{
final boolean foundSchemaNameSpace = XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI.equals(r.getAttributeNamespace(i));
final boolean foundLocationAttributeName = SCHEMA_LOCATION.equals(r.getAttributeLocalName(i));
if (foundSchemaNameSpace && foundLocationAttributeName)
{
return r.getAttributeValue(i);
}
}
return null; // only checked the first element
}
}
return null;
}
catch (final XMLStreamException e)
{
throw new RuntimeException(e);
}
}
Actually XMLStreamReader does all the magic, namely:
only parses the XML's beginning (not the whole XML)
does not assume a particular namespace alias (i.e. xsi)

Property Editor not registered with the PropertyEditorManager error on Custom Validation Tag (java)

I am using TomCat 5.5 with MyFaces 1.1 and am trying to implement a custom regex validation tag.
My RegExValidator class looks like this:
public class RegExValidator implements Validator, StateHolder {
private String regex;
private boolean transientValue = false;
public RegExValidator() {
super();
}
public RegExValidator(String regex) {
this();
this.regex = regex;
}
public void validate(FacesContext context, UIComponent component, Object toValidate) throws ValidatorException {
if ((context == null) || (component == null)) {
throw new NullPointerException();
}
if (!(component instanceof UIInput)) {
return;
}
if (null == regex || null == toValidate) {
return;
}
String val = (String) toValidate;
if (!val.matches(regex)) {
FacesMessage errMsg = MessageFactory.createFacesMessage(context, Constants.FORMAT_INVALID_MESSAGE_ID, FacesMessage.SEVERITY_ERROR, (new Object[]{regex}));
throw new ValidatorException(errMsg);
}
}
public Object saveState(FacesContext context) {
Object[] values = new Object[1];
values[0] = regex;
return (values);
}
public void restoreState(FacesContext context, Object state) {
Object[] values = (Object[]) state;
regex = (String) values[0];
}
public String getRegex() {
return regex;
}
public void setRegex(String regex) {
this.regex = regex;
}
public boolean isTransient() {
return transientValue;
}
public void setTransient(boolean transientValue) {
this.transientValue = transientValue;
}
}
My RegExValidatorTag class looks like this:
#SuppressWarnings("serial")
public class RegExValidatorTag extends ValidatorELTag {
private static String validatorID = null;
protected ValueExpression regex = null;
public RegExValidatorTag() {
super();
if (validatorID == null) {
validatorID = "RegExValidator";
}
}
public Validator createValidator() throws JspException {
FacesContext facesContext = FacesContext.getCurrentInstance();
RegExValidator result = null;
if (validatorID != null) {
result = (RegExValidator) facesContext.getApplication().createValidator(validatorID);
}
String patterns = null;
if (regex != null) {
if (!regex.isLiteralText()) {
patterns = (String) regex.getValue(facesContext.getELContext());
} else {
patterns = regex.getExpressionString();
}
}
result.setRegex(patterns);
return result;
}
public void setValidatorID(String validatorID) {
RegExValidatorTag.validatorID = validatorID;
}
/**
* #param regex
* the regex to set
*/
public void setRegex(ValueExpression regex) {
this.regex = regex;
}
}
My Taglibrary Descriptor looks like this:
<tag>
<name>regexValidator</name>
<tag-class>com.company.components.taglib.RegExValidatorTag</tag-class>
<attribute>
<name>regex</name>
<required>true</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
</tag>
My face-common-config.xml has a Validator tag like this:
<validator>
<description>
Validate an input string value against a regular
expression specified by the "regex" attribute.
</description>
<validator-id>RegExValidator</validator-id>
<validator-class>com.company.components.validators.RegExValidator</validator-class>
<attribute>
<description>
The regular expression to test the value against
</description>
<attribute-name>regex</attribute-name>
<attribute-class>java.lang.String</attribute-class>
</attribute>
</validator>
And later on it is supposed to be used in a jsp file like this:
<tc:in value="${dataBean.currentBean.field}">
<a:regexValidator regex="${dataBean.currentBean.validationRegEx}" />
</tc:in>
When calling the page, the following error comes up:
javax.servlet.ServletException: javax.servlet.jsp.JspException: org.apache.jasper.JasperException: Unable to convert string "[\d{4}]" to class "javax.el.ValueExpression" for attribute "regex": Property Editor not registered with the PropertyEditorManager
Caused by:
org.apache.jasper.JasperException - Unable to convert string "[\d{4}]" to class "javax.el.ValueExpression" for attribute "regex": Property Editor not registered with the PropertyEditorManager
I hope I provided enough details for someone to help me out on this...

I seem to have a similar problem like yours, I'm trying to find the solution but seems that the problem is when using Tomcat or the application server(WebSphere Application Server 7.0) JSF libraries, my problem is that the new application server has new JSF libraries (1.2) instead of the 1.1 libraries that my old application server had. (Version 6.1)
To be more specific. my problem is described here. http://www-01.ibm.com/support/docview.wss?uid=swg21318801