Hi,
would there be no one interested in problems with large attachments? Are
webservices really only useful for small junks of data?
regards,
Martin
>> My original message
Hi there,
I am using JAX-RPC, and compile my WSDL from the following interface:
public interface ContentServer extends Remote
{
public DataHandler downloadContent(String userName, String passWord,
long id)
throws RemoteException;
}
Now I am filling the return value with the code in the respective
Impl-class (code of the impl-class can be found further below).
Finally, I compile client stubs for the code and run a small client
against those stubs - printing out the retrieved values:
public class DemoClient
{
public static void main (String args[])
throws Exception
{
ContentServer_Service_Impl service =
new ContentServer_Service_Impl();
ContentServer_PortType stub = service.getContentServerPort();
DataHandler handler = stub.downloadContent("exmam","xxx",45);
BufferedReader instr = new BufferedReader(
new InputStreamReader(handler.getInputStream()));
String str=null;
while((str = instr.readLine())!=null)
System.out.println(str);
System.out.println("success");
}
}
This works fine if the file is a rather small one (let's say up to a
megabyte), with larger files (I tried a 16MB file) I inevitably run
into the following exception, even though my memory should easily be
able to cope with the size of the file and I am using only stream-based
access....
Are there any restrictions on how large an attached file can grow in
using the JAX-RPC Datahandler mapping?
regards,
Martin
java.lang.OutOfMemoryError
04.10.2004 13:10:55 com.sun.xml.messaging.saaj.soap.MessageImpl <init>
SCHWERWIEGEND: SAAJ0535: Unable to internalize message
java.rmi.RemoteException: HTTP transport error:
com.sun.xml.messaging.saaj.SOAPExceptionImpl: Unable to internalize
message; nested exception is:
HTTP transport error: com.sun.xml.messaging.saaj.SOAPExceptionImpl:
Unable to internalize message
at
at.oekb.clearinghouse.webservices.client.content.ContentServer_PortType_Stub.downloadContent(ContentServer_PortType_Stub.java:89)
at
at.oekb.clearinghouse.webservices.client.content.DemoClient.main(DemoClient.java:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:78)
Caused by: HTTP transport error:
com.sun.xml.messaging.saaj.SOAPExceptionImpl: Unable to internalize message
at
com.sun.xml.rpc.client.http.HttpClientTransport.invoke(HttpClientTransport.java:140)
at com.sun.xml.rpc.client.StreamingSender._send(StreamingSender.java:92)
at
at.oekb.clearinghouse.webservices.client.content.ContentServer_PortType_Stub.downloadContent(ContentServer_PortType_Stub.java:72)
... 6 more
Exception in thread "main"
public class ContentServerImpl implements ContentServer
{
public DataHandler downloadContent(String userName, String passWord,
long id)
{
String dsName1 = "jdbc/roncalli_dev"; // JNDI name
javax.sql.DataSource ds1 = null;
Connection conn = null;
try
{
Context ic = new InitialContext();
Context ctx = (Context) ic.lookup("java:comp/env");
ds1 = (javax.sql.DataSource)ctx.lookup(dsName1); // Problem here
conn = ds1.getConnection();
} catch (Exception e) {
e.printStackTrace();
}
InputStream dataStream =
XMLLoader.getAsAsciiStream(conn,"contents","id","data",id);
StreamDataSource src = new StreamDataSource();
src.setInputStream(dataStream);
src.setName("content.xml");
DataHandler handler = new DataHandler(src);
return handler;
}
public static class StreamDataSource implements DataSource
{
private InputStream _inputStream;
private OutputStream _outputStream;
private String _name;
private String _contentType = "text/xml";
public void setInputStream(InputStream inputStream)
{
_inputStream = inputStream;
}
public void setName(String name)
{
_name = name;
}
public void setOutputStream(OutputStream outputStream)
{
_outputStream = outputStream;
}
public InputStream getInputStream() throws IOException
{
return _inputStream;
}
public OutputStream getOutputStream() throws IOException
{
return _outputStream;
}
public String getContentType()
{
return _contentType;
}
public String getName()
{
return _name;
}
public void setContentType(String contentType)
{
_contentType = contentType;
}
}
}
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