How to parse SOAP headers inside an Endpoint method using Springs - spring

Question

I am using Springs 3. I have a method in an Endpoint class which handles the web service request. The method is annotated with #Action to make it asynchronous. The SOAP request header contains some information (like UUID, Reply Address, etc). I need to be able to access these header information from inside this method.
The Spring WS MessageContext as well as the Apache axis MessageContext seems to be empty, so I am not able to use it inside the method to derive the SOAP header.

Answer 1

With #Action and Reply Address - i am assuming that it is WS-Addressing parameters.
Not sure how you got the MessageContext to be null. I had once was in a similar situation earlier (but was not able to access the MessageContext from the Endpoint method).
I followed the steps mentioned in this website Access Spring WS MessageContext from anywhere.
Once MessageContext is retrieved (hopefully not null), the said parameters can be easily accessed by something like this
SoapMessage sm = (SoapMessage) mc.getRequest();
Iterator<SoapHeaderElement> iter = sm.getEnvelope().getHeader().examineAllHeaderElements();
while (iter.hasNext()) {
SoapHeaderElement she = iter.next();
log.info("\n"+she.getName().getLocalPart()+ " - "+she.getText());
}

Answer 2

For this you can use unmarshalling to get the header variables.
Suppose you have a header like this
<soapenv:Header>
<v2:XHeader>
<v2:name>xxx</v2:srvcName>
<v2:version>1.0</v2:srvcVersion>
<v2:sender>yyy</v2:senderApp>
</v2:XHeader>
</soapenv:Header>
and your aim is to get the values xxx,1.0,yyy inside your endpoint method of the webservice.For this what you have to do is , Create a class say it's name be MyHeader.java so that we will unmarshall the incoming header values to this class.This class will look like
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;
#XmlAccessorType(XmlAccessType.FIELD)
#XmlType(name = "XHeader", propOrder = {
"name",
"version",
"sender"
})
#XmlRootElement(name = "XHeader")
public class MyHeader {
#XmlElement(required = true)
protected String name;
#XmlElement(required = true)
protected String version;
#XmlElement(required = true)
protected String sender;
public String getName() {
return name;
}
public void setName(String value) {
this.name = value;
}
public String getVersion() {
return version;
}
public void setVersion(String value) {
this.version = value;
}
public String getSender() {
return sender;
}
public void setSnder(String value) {
this.sender = value;
}
}
here what i did is, we have created a java class and annoted it with
#XmlRootElement(name = "XHeader")
so that we are telling that the root element of the xml should be XHeader.
Similarly created three variables and annoted with
#XmlElement(required = true)
.Now what to do is inside the endpoint method, you create a jaxbcontext object like
JAXBContext jaxbContext = JAXBContext.newInstance(MyHeaderType.class);
SoapMessage requestMessage = (SoapMessage) messageContext.getRequest();
SoapHeader reqheader = requestMessage.getSoapHeader();
Iterator<SoapHeaderElement> itr = reqheader.examineAllHeaderElements();
while (itr.hasNext()) {
SoapHeaderElement ele = itr.next();
MyHeaderType headerType=(MyHeaderType)jaxbContext.createUnmarshaller().unmarshal(ele.getSource());
System.out.println(esbHeaderType.getName());
System.out.println(esbHeaderType.getVersion());
System.out.println(esbHeaderType.getSender());
}
.and now it will print the values xxx,1.0,yyy