Hi,
I've been able to return strings in SOAP attachments, but I haven't been successful
returning a byte array. I wrote in previously about this problem because I was
getting error messages such as "javax.activation.UnsupportedDataTypeException: no
object DCH for MIME type application/octet-stream". It was suggested that I try
running with the latest build from CVS because Axis release 1.1 had a problem with
byte arrays in attachments. So I'm running with the July 9 build. With this build, I
no longer get the UnsupportedDataTypeException errors, but now I get no attachment in
the response message.
Here's the simple example I used to get a string returned in an attachment. Then a
few small changes to return a byte array. I would appreciate it if someone could
detect where I'm going wrong with this approach.
Thanks!
. . . Phil
******
****** Client code ******
******
package us.pooch.soaptest.attachments;
import org.apache.axis.AxisFault;
import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import org.apache.axis.encoding.XMLType;
import org.apache.axis.encoding.ser.JAFDataHandlerDeserializerFactory;
import org.apache.axis.encoding.ser.JAFDataHandlerSerializerFactory;
import org.apache.axis.transport.http.HTTPConstants;
import org.apache.axis.utils.Options;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.xml.namespace.QName;
import javax.xml.rpc.ParameterMode;
import javax.xml.soap.AttachmentPart;
import javax.xml.soap.MessageFactory;
import javax.xml.soap.SOAPBody;
import javax.xml.soap.SOAPBodyElement;
import javax.xml.soap.SOAPConnection;
import javax.xml.soap.SOAPConnectionFactory;
import javax.xml.soap.SOAPEnvelope;
import javax.xml.soap.SOAPMessage;
import javax.xml.soap.SOAPPart;
import java.io.File;
import java.net.URL;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.ListIterator;
import java.util.Vector;
public class SOAPAttachmentMimeTypeDemoClient {
public static void main(String args[]) {
try {
SOAPAttachmentMimeTypeDemoClient demoClient =
new SOAPAttachmentMimeTypeDemoClient();
demoClient.demoGetString();
demoClient.demoGetBytes();
} catch (Exception e) {
System.err.println(e);
e.printStackTrace();
}
System.exit(18);
}
protected DataHandler runDemo(String functionName) throws Exception {
String endPointURLString =
"http://localhost:8080/SOAPAttachmentMimeTypeDemoProjectWeb/services/SOAPAttachmentMimeTypeDemoService";;
SOAPConnectionFactory soapConnectionFactory =
javax.xml.soap.SOAPConnectionFactory.newInstance();
SOAPConnection soapConnection =
soapConnectionFactory.createConnection();
MessageFactory messageFactory = MessageFactory.newInstance();
SOAPMessage soapMessage = messageFactory.createMessage();
SOAPPart soapPart = soapMessage.getSOAPPart();
SOAPEnvelope requestEnvelope = soapPart.getEnvelope();
SOAPBody body = requestEnvelope.getBody();
SOAPBodyElement operation =
body.addBodyElement(requestEnvelope.createName(functionName));
javax.xml.soap.SOAPMessage returnedSOAPMessage =
soapConnection.call(soapMessage, endPointURLString);
Iterator iterator = returnedSOAPMessage.getAttachments();
if (!iterator.hasNext()) {
//The wrong type of object that what was expected.
System.out.println("Received problem response from server");
throw new AxisFault(
"",
"Received problem response from server",
null,
null);
}
return (DataHandler) ((AttachmentPart)
iterator.next()).getDataHandler();
}
public void demoGetString() throws Exception {
DataHandler rdh = runDemo("getString");
String returnedData = (String) rdh.getContent();
if (!returnedData.equals("You got me!")) {
System.err.println("Did not get the expected string.");
throw new AxisFault("", "Did not get the expected string.",
null, null);
}
System.out.println("getString() succeeded");
}
public void demoGetBytes() throws Exception {
DataHandler rdh = runDemo("getBytes");
byte[] returnedData = (byte[]) rdh.getContent();
byte[] expectedArray = new byte[] { 01, 02, 03, 04 };
if (!returnedData.equals(expectedArray)) {
System.err.println("Did not get the expected byte[].");
throw new AxisFault("", "Did not get the expected byte[].",
null, null);
}
System.out.println("getBytes() succeeded");
}
}
******
****** Service code ******
******
package us.pooch.soaptest.attachments;
import javax.activation.DataHandler;
public class SOAPAttachmentMimeTypeDemoService {
public DataHandler getString() {
return new DataHandler("You got me!", "text/plain");
}
public DataHandler getBytes() {
byte[] arrayToReturn = new byte[] { 01, 02, 03, 04 };
return new DataHandler(arrayToReturn, "application/octet-stream");
}
}
******
****** WSDD
******
<deployment xmlns="http://xml.apache.org/axis/wsdd/";
xmlns:java="http://xml.apache.org/axis/wsdd/providers/java";
xmlns:ns1="SOAPAttachmentMimeTypeDemoService" >
<service name="SOAPAttachmentMimeTypeDemoService" provider="java:RPC" >
<parameter name="className"
value="us.pooch.soaptest.attachments.SOAPAttachmentMimeTypeDemoService"/>
<parameter name="allowedMethods" value="getString getBytes"/>
<operation name="getString" returnQName="returnqname" returnType="ns1:DataHandler"
/>
<operation name="getBytes" returnQName="returnqname" returnType="ns1:DataHandler"
/>
<typeMapping
deserializer="org.apache.axis.encoding.ser.JAFDataHandlerDeserializerFactory"
languageSpecificType="java:javax.activation.DataHandler" qname="ns1:DataHandler"
serializer="org.apache.axis.encoding.ser.JAFDataHandlerSerializerFactory"
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";
/>
</service>
</deployment>
