JAX-WS: How to input and output XML AnyType

JAX-WS works in a very simple and effective way if you have defined all objects in a XML Schema definition. But sometimes you can’t define a schema for an operation because e.g. it is a generic operation and accepts or returns dynamic XML.

Nevertheless we would like to use for this operation the same tool chain with JAX-WS which is working perfectly for other operations.

In the first step we define the interface of the operation testXMLCall in the WSDL (better the XSD referenced by the WSDL).

<div><span style="color:#008080;"> 1</span> <span style="color:#0000FF;">&lt;</span><span style="color:#800000;">xsd:element </span><span style="color:#FF0000;">name</span><span style="color:#0000FF;">='testXMLCall'&gt;
</span><span style="color:#008080;"> 2</span> <span style="color:#0000FF;">  </span><span style="color:#FF0000;">&lt;xsd:complexType</span><span style="color:#0000FF;">&gt;</span><span style="color:#000000;">
</span><span style="color:#008080;"> 3</span> <span style="color:#000000;">    </span><span style="color:#0000FF;">&lt;</span><span style="color:#800000;">xsd:sequence</span><span style="color:#0000FF;">&gt;</span><span style="color:#000000;">
</span><span style="color:#008080;"> 4</span> <span style="color:#000000;">      </span><span style="color:#0000FF;">&lt;</span><span style="color:#800000;">xsd:element </span><span style="color:#FF0000;">minOccurs</span><span style="color:#0000FF;">='1' </span><span style="color:#FF0000;">maxOccurs</span><span style="color:#0000FF;">='1' </span><span style="color:#FF0000;">name</span><span style="color:#0000FF;">='name' </span><span style="color:#FF0000;">type</span><span style="color:#0000FF;">='xsd:string'/&gt;             
</span><span style="color:#008080;"> 5</span> <span style="color:#0000FF;">      </span><span style="color:#FF0000;">&lt;xsd:element minOccurs</span><span style="color:#0000FF;">='1' </span><span style="color:#FF0000;">maxOccurs</span><span style="color:#0000FF;">='1' </span><span style="color:#FF0000;">name</span><span style="color:#0000FF;">='requestXMLData' </span><span style="color:#FF0000;">type</span><span style="color:#0000FF;">='xsd:anyType'/&gt;             
</span><span style="color:#008080;"> 6</span> <span style="color:#0000FF;">    </span><span style="color:#FF0000;">&lt;/xsd:sequence</span><span style="color:#0000FF;">&gt;</span><span style="color:#000000;">
</span><span style="color:#008080;"> 7</span> <span style="color:#000000;">  </span><span style="color:#0000FF;">&lt;/</span><span style="color:#800000;">xsd:complexType</span><span style="color:#0000FF;">&gt;</span><span style="color:#000000;">
</span><span style="color:#008080;"> 8</span> <span style="color:#000000;"></span><span style="color:#0000FF;">&lt;/</span><span style="color:#800000;">xsd:element</span><span style="color:#0000FF;">&gt;</span><span style="color:#000000;">
</span><span style="color:#008080;"> 9</span> <span style="color:#000000;"></span><span style="color:#0000FF;">&lt;</span><span style="color:#800000;">xsd:element </span><span style="color:#FF0000;">name</span><span style="color:#0000FF;">='testXMLCallResponse'&gt;
</span><span style="color:#008080;">10</span> <span style="color:#0000FF;">  </span><span style="color:#FF0000;">&lt;xsd:complexType</span><span style="color:#0000FF;">&gt;</span><span style="color:#000000;">
</span><span style="color:#008080;">11</span> <span style="color:#000000;">    </span><span style="color:#0000FF;">&lt;</span><span style="color:#800000;">xsd:sequence</span><span style="color:#0000FF;">&gt;</span><span style="color:#000000;">
</span><span style="color:#008080;">12</span> <span style="color:#000000;">      </span><span style="color:#0000FF;">&lt;</span><span style="color:#800000;">xsd:element </span><span style="color:#FF0000;">minOccurs</span><span style="color:#0000FF;">='1' </span><span style="color:#FF0000;">maxOccurs</span><span style="color:#0000FF;">='1' </span><span style="color:#FF0000;">name</span><span style="color:#0000FF;">='responseXMLData' </span><span style="color:#FF0000;">type</span><span style="color:#0000FF;">='xsd:anyType'/&gt;             
</span><span style="color:#008080;">13</span> <span style="color:#0000FF;">    </span><span style="color:#FF0000;">&lt;/xsd:sequence</span><span style="color:#0000FF;">&gt;</span><span style="color:#000000;">
</span><span style="color:#008080;">14</span> <span style="color:#000000;">  </span><span style="color:#0000FF;">&lt;/</span><span style="color:#800000;">xsd:complexType</span><span style="color:#0000FF;">&gt;</span><span style="color:#000000;">
</span><span style="color:#008080;">15</span> <span style="color:#000000;"></span><span style="color:#0000FF;">&lt;/</span><span style="color:#800000;">xsd:element</span><span style="color:#0000FF;">&gt;</span></div>

2 <xsd:complexType>

3 <xsd:sequence>

4 <xsd:element minOccurs='1' maxOccurs='1' name='name' type='xsd:string'/>

5 <xsd:element minOccurs='1' maxOccurs='1' name='requestXMLData' type='xsd:anyType'/>

6 </xsd:sequence>

7 </xsd:complexType>

8 </xsd:element>

9 <xsd:element name='testXMLCallResponse'>

10 <xsd:complexType>

11 <xsd:sequence>

12 <xsd:element minOccurs='1' maxOccurs='1' name='responseXMLData' type='xsd:anyType'/>

13 </xsd:sequence>

14 </xsd:complexType>

15 </xsd:element></div>

From this WSDL we generate the interface PortType of the webservice. The implementation of the interface needs an operation of this definition:

<div><span style="color:#008080;">1</span> <span style="color:#000000;">@WebMethod(action </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://localhost/testXMLCall</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;">2</span> <span style="color:#000000;">@WebResult(name </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">responseXMLData</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, targetNamespace </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://opitz-consulting.com/interfaces/TestMessages/V1</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;">3</span> <span style="color:#000000;">@RequestWrapper(localName </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">testXMLCall</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, targetNamespace </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://opitz-consulting.com/interfaces/TestMessages/V1</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, className </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">com.oc.soa.sample.ws.v1.messages.TestXMLCall</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;">4</span> <span style="color:#000000;">@ResponseWrapper(localName </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">testXMLCallResponse</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, targetNamespace </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://opitz-consulting.com/interfaces/TestMessages/V1</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, className </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">com.oc.soa.sample.ws.v1.messages.TestXMLCallResponse</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;">5</span> <span style="color:#000000;"></span><span style="color:#0000FF;">public</span><span style="color:#000000;"> Object testXMLCall(
</span><span style="color:#008080;">6</span> <span style="color:#000000;">    @WebParam(name </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">name</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, targetNamespace </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://opitz-consulting.com/interfaces/TestMessages/V1</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;">7</span> <span style="color:#000000;">    String name,
</span><span style="color:#008080;">8</span> <span style="color:#000000;">    @WebParam(name </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">requestXMLData</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, targetNamespace </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://opitz-consulting.com/interfaces/TestMessages/V1</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;">9</span> <span style="color:#000000;">    Object requestXMLData);</span></div>

<div>1 @WebMethod(action = "http://localhost/testXMLCall")

2 @WebResult(name = "responseXMLData", targetNamespace = "http://opitz-consulting.com/interfaces/TestMessages/V1")

3 @RequestWrapper(localName = "testXMLCall", targetNamespace = "http://opitz-consulting.com/interfaces/TestMessages/V1", className = "com.oc.soa.sample.ws.v1.messages.TestXMLCall")

4 @ResponseWrapper(localName = "testXMLCallResponse", targetNamespace = "http://opitz-consulting.com/interfaces/TestMessages/V1", className = "com.oc.soa.sample.ws.v1.messages.TestXMLCallResponse")

5 public Object testXMLCall(

6 @WebParam(name = "name", targetNamespace = "http://opitz-consulting.com/interfaces/TestMessages/V1")

7 String name,

8 @WebParam(name = "requestXMLData", targetNamespace = "http://opitz-consulting.com/interfaces/TestMessages/V1")

9 Object requestXMLData);</div>

We make an implementation:

<div><span style="color:#008080;"> 1</span> <span style="color:#000000;">@WebMethod(action </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://localhost/testXMLCall</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;"> 2</span> <span style="color:#000000;">@WebResult(name </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">responseXMLData</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, targetNamespace </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://opitz-consulting.com/interfaces/TestMessages/V1</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;"> 3</span> <span style="color:#000000;">@RequestWrapper(localName </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">testXMLCall</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, targetNamespace </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://opitz-consulting.com/interfaces/TestMessages/V1</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, className </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">com.oc.soa.sample.ws.v1.messages.TestXMLCall</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;"> 4</span> <span style="color:#000000;">@ResponseWrapper(localName </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">testXMLCallResponse</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, targetNamespace </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://opitz-consulting.com/interfaces/TestMessages/V1</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, className </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">com.oc.soa.sample.ws.v1.messages.TestXMLCallResponse</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;"> 5</span> <span style="color:#000000;"></span><span style="color:#0000FF;">public</span><span style="color:#000000;"> Object testXMLCall(
</span><span style="color:#008080;"> 6</span> <span style="color:#000000;">    @WebParam(name </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">name</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, targetNamespace </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://opitz-consulting.com/interfaces/TestMessages/V1</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;"> 7</span> <span style="color:#000000;">    String name,
</span><span style="color:#008080;"> 8</span> <span style="color:#000000;">    @WebParam(name </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">requestXMLData</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, targetNamespace </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">http://opitz-consulting.com/interfaces/TestMessages/V1</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">)
</span><span style="color:#008080;"> 9</span> <span style="color:#000000;">    Object requestXMLData) { 
</span><span style="color:#008080;">10</span> <span style="color:#000000;">  TestXMLCallResponse result </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#0000FF;">new</span><span style="color:#000000;"> TestXMLCallResponse();
</span><span style="color:#008080;">11</span> <span style="color:#000000;">  </span><span style="color:#0000FF;">if</span><span style="color:#000000;"> (requestXMLData </span><span style="color:#0000FF;">instanceof</span><span style="color:#000000;"> Element) {
</span><span style="color:#008080;">12</span> <span style="color:#000000;">    Element requestXMLDataElement </span><span style="color:#000000;">=</span><span style="color:#000000;"> ((Element) requestXMLData);
</span><span style="color:#008080;">13</span> <span style="color:#000000;">    LOG.info(</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">XML in: n</span><span style="color:#000000;">&quot;</span><span style="color:#000000;"> </span><span style="color:#000000;">+</span><span style="color:#000000;"> getPrintString(requestXMLDataElement));
</span><span style="color:#008080;">14</span> <span style="color:#000000;">    XmlObject xmlResult;
</span><span style="color:#008080;">15</span> <span style="color:#000000;">    </span><span style="color:#0000FF;">try</span><span style="color:#000000;"> {
</span><span style="color:#008080;">16</span> <span style="color:#000000;">      xmlResult </span><span style="color:#000000;">=</span><span style="color:#000000;"> doSomething(requestXMLDataElement);
</span><span style="color:#008080;">17</span> <span style="color:#000000;">    } </span><span style="color:#0000FF;">catch</span><span style="color:#000000;"> (RuntimeException e) {
</span><span style="color:#008080;">18</span> <span style="color:#000000;">      LOG.error(</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">Error while doSomething with XML: n</span><span style="color:#000000;">&quot;</span><span style="color:#000000;"> </span><span style="color:#000000;">+</span><span style="color:#000000;"> getPrintString(requestXMLDataElement), e);      
</span><span style="color:#008080;">19</span> <span style="color:#000000;">      </span><span style="color:#0000FF;">throw</span><span style="color:#000000;"> e;
</span><span style="color:#008080;">20</span> <span style="color:#000000;">    }
</span><span style="color:#008080;">21</span> <span style="color:#000000;">    LOG.info(</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">XML out: n</span><span style="color:#000000;">&quot;</span><span style="color:#000000;"> </span><span style="color:#000000;">+</span><span style="color:#000000;"> getPrintString(xmlResult.getDomNode()));
</span><span style="color:#008080;">22</span> <span style="color:#000000;">    result.setResponseXMLData(xmlResult.getDomNode().getFirstChild());
</span><span style="color:#008080;">23</span> <span style="color:#000000;">  } </span><span style="color:#0000FF;">else</span><span style="color:#000000;"> </span><span style="color:#0000FF;">if</span><span style="color:#000000;"> (requestXMLData </span><span style="color:#000000;">==</span><span style="color:#000000;"> </span><span style="color:#0000FF;">null</span><span style="color:#000000;">) {
</span><span style="color:#008080;">24</span> <span style="color:#000000;">    LOG.error(</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">Data is null.</span><span style="color:#000000;">&quot;</span><span style="color:#000000;"> );      
</span><span style="color:#008080;">25</span> <span style="color:#000000;">  } </span><span style="color:#0000FF;">else</span><span style="color:#000000;"> {
</span><span style="color:#008080;">26</span> <span style="color:#000000;">    LOG.error(</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">Unknown data of type '</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">+</span><span style="color:#000000;"> requestXMLData.getClass() </span><span style="color:#000000;">+</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">'.</span><span style="color:#000000;">&quot;</span><span style="color:#000000;"> );      
</span><span style="color:#008080;">27</span> <span style="color:#000000;">  }
</span><span style="color:#008080;">28</span> <span style="color:#000000;">  </span><span style="color:#0000FF;">return</span><span style="color:#000000;"> result;
</span><span style="color:#008080;">29</span> <span style="color:#000000;">}</span></div>

<div> 1 @WebMethod(action = "http://localhost/testXMLCall")

2 @WebResult(name = "responseXMLData", targetNamespace = "http://opitz-consulting.com/interfaces/TestMessages/V1")

3 @RequestWrapper(localName = "testXMLCall", targetNamespace = "http://opitz-consulting.com/interfaces/TestMessages/V1", className = "com.oc.soa.sample.ws.v1.messages.TestXMLCall")

4 @ResponseWrapper(localName = "testXMLCallResponse", targetNamespace = "http://opitz-consulting.com/interfaces/TestMessages/V1", className = "com.oc.soa.sample.ws.v1.messages.TestXMLCallResponse")

5 public Object testXMLCall(

6 @WebParam(name = "name", targetNamespace = "http://opitz-consulting.com/interfaces/TestMessages/V1")

7 String name,

8 @WebParam(name = "requestXMLData", targetNamespace = "http://opitz-consulting.com/interfaces/TestMessages/V1")

9 Object requestXMLData) {

10 TestXMLCallResponse result = new TestXMLCallResponse();

11 if (requestXMLData instanceof Element) {

12 Element requestXMLDataElement = ((Element) requestXMLData);

13 LOG.info("XML in: n" + getPrintString(requestXMLDataElement));

14 XmlObject xmlResult;

15 try {

16 xmlResult = doSomething(requestXMLDataElement);

17 } catch (RuntimeException e) {

18 LOG.error("Error while doSomething with XML: n" + getPrintString(requestXMLDataElement), e);

19 throw e;

20 }

21 LOG.info("XML out: n" + getPrintString(xmlResult.getDomNode()));

22 result.setResponseXMLData(xmlResult.getDomNode().getFirstChild());

23 } else if (requestXMLData == null) {

24 LOG.error("Data is null." );

25 } else {

26 LOG.error("Unknown data of type '"+ requestXMLData.getClass() + "'." );

27 }

28 return result;

29 }</div>

We make an implementation of the method getPrintString for a readable output of the XML.

<div><span style="color:#008080;"> 1</span> <span style="color:#0000FF;">public</span><span style="color:#000000;"> </span><span style="color:#0000FF;">static</span><span style="color:#000000;"> String getPrintString(Node node) {
</span><span style="color:#008080;"> 2</span> <span style="color:#000000;">  </span><span style="color:#0000FF;">try</span><span style="color:#000000;"> {
</span><span style="color:#008080;"> 3</span> <span style="color:#000000;">    DOMSource domSource </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#0000FF;">new</span><span style="color:#000000;"> DOMSource(node);
</span><span style="color:#008080;"> 4</span> <span style="color:#000000;">    StringWriter writer </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#0000FF;">new</span><span style="color:#000000;"> StringWriter();
</span><span style="color:#008080;"> 5</span> <span style="color:#000000;">    StreamResult result </span><span style="color:#000000;">=</span><span style="color:#000000;"> </span><span style="color:#0000FF;">new</span><span style="color:#000000;"> StreamResult(writer);
</span><span style="color:#008080;"> 6</span> <span style="color:#000000;">    TransformerFactory tf </span><span style="color:#000000;">=</span><span style="color:#000000;"> TransformerFactory.newInstance();
</span><span style="color:#008080;"> 7</span> <span style="color:#000000;">    Transformer transformer </span><span style="color:#000000;">=</span><span style="color:#000000;"> tf.newTransformer();
</span><span style="color:#008080;"> 8</span> <span style="color:#000000;">    transformer.transform(domSource, result);
</span><span style="color:#008080;"> 9</span> <span style="color:#000000;">    writer.flush();
</span><span style="color:#008080;">10</span> <span style="color:#000000;">    </span><span style="color:#0000FF;">return</span><span style="color:#000000;"> writer.toString();
</span><span style="color:#008080;">11</span> <span style="color:#000000;">  } </span><span style="color:#0000FF;">catch</span><span style="color:#000000;"> (TransformerException e)    {
</span><span style="color:#008080;">12</span> <span style="color:#000000;">    LOG.warn(</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">Unable to convert XML-Node '</span><span style="color:#000000;">&quot;</span><span style="color:#000000;"> </span><span style="color:#000000;">+</span><span style="color:#000000;"> node.toString() </span><span style="color:#000000;">+</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">' of class '</span><span style="color:#000000;">&quot;</span><span style="color:#000000;"> </span><span style="color:#000000;">+</span><span style="color:#000000;"> node.getClass() </span><span style="color:#000000;">+</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">' to string representation.</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">, e);
</span><span style="color:#008080;">13</span> <span style="color:#000000;">    </span><span style="color:#0000FF;">return</span><span style="color:#000000;"> </span><span style="color:#000000;">&quot;</span><span style="color:#000000;">[non printable xml]</span><span style="color:#000000;">&quot;</span><span style="color:#000000;">;
</span><span style="color:#008080;">14</span> <span style="color:#000000;">  }
</span><span style="color:#008080;">15</span> <span style="color:#000000;">}</span></div>

<div> 1 public static String getPrintString(Node node) {

2 try {

3 DOMSource domSource = new DOMSource(node);

4 StringWriter writer = new StringWriter();

5 StreamResult result = new StreamResult(writer);

6 TransformerFactory tf = TransformerFactory.newInstance();

7 Transformer transformer = tf.newTransformer();

8 transformer.transform(domSource, result);

9 writer.flush();

10 return writer.toString();

11 } catch (TransformerException e) {

12 LOG.warn("Unable to convert XML-Node '" + node.toString() + "' of class '" + node.getClass() + "' to string representation.", e);

13 return "[non printable xml]";

14 }

15 }</div>

And finally the method doSomething processing the xml element and returning an XmlObject needs to be implemented.

Bernhard Mähr @ OPITZ-CONSULTING published at http://thecattlecrew.wordpress.com/

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