Unfortunately, DataHandlers are serialized as attachments, and attachments are always deserialized as DataHandlers. Therefore, your deserializer cannot work with the existing Apache SOAP code.
A fairly simple alternative would be to have an Image [de-]serializer that delegates to the Base64Serializer. The jpeg gets managed as a byte array, but you specify the javaType as Image so that the xsi:type attribute reflects its origins and the byte array can be deserialized to an Image. This is not as efficient as the DataHandler (Base64 takes 33% more space than straight bytes), but it will function with minimal work. Scott Nichol ----- Original Message ----- From: "Vamsi Krishna" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, January 09, 2003 10:06 PM Subject: Can I override the MimePartSerializer?? - Need Help Soon > hi All, > > My service has a method - saveJPEG(String name, java.awt.Image img) > taking a name and a jpeg image and saving that jpeg with that name in a > specified directory. > I am using SOAP RPC. Since there is no Serializer/Deserializer for Image > type, i created my ImageSerializerDeserializer. The DD specifies this > info. The client also does the mapTypes with this info. What I do in > this class is - in the marshall method, i take the Image source, convert > it into a DataHandler object and call the MimePartSerializer with the > DataHandler object (i simply pass all the other parameters onto > MimePartSerializer - only the src is changed to dhsrc). > In the unmarshall method - i first call the > MimePartSerializer.unmarshall method and get the Bean. Since i know it > is Image, i convert the DataHandler value in this bean to an Image > object and create and return that Image bean. > > So the client works fine now - my ImageSerializer's marshall method gets > called and the call goes through to the Server. The problem is in the > Deserialization. My ImageSerializer class's unmarshall method is never > called at the server end. Always the MimePartSerializer.unmarshall is > called and I get a fault saying there is no such method that accepts a > DataHandler - saveJPEG(java.lang.String,javax.activation.DataHandler). > > What is the problem here? Is there a way to override the deserializer > for javax.activation.DataHandler? Is my approach correct? > (I know i can have an overloaded method with this signature taking the > data handler and in this method convert the dh to image and call my > original method. But this is not what i am looking for.) > > > I appreciate any help in this. > > thanks a lot in advance, > Vamsi. > > > The DD entry is - > <isd:map encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"; > xmlns:x="urn:xml-soap-j2eeca-soapattach-serverSaveJPEG" > qname="x:Image" > javaType="java.awt.Image" > java2XMLClassName="soapattach.soap.serializers.ImageSerializer" > > xml2JavaClassName="soapattach.soap.serializers.ImageSerializer" /> > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
