I have a JBoss web service (5.1) using EJB3 to run apps for dao updates/inserts on our MSSQL server.
Part of the app setup includes a custom SOAPHandler, which is used to parse the xml from the message in ByteArray[Output/Input]Stream and print it to the server log.
This works fine most of the time, but recently we took on a new client who is sending large amounts of data, and due to a slim (vitually non-existant) budget, I have to run our test/integration service on an old pc (trust me, i didn't want to).
Sure enough, before long i encountered:
2012-11-21 14:20:40,128 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost]. *removed* -5) Servlet.service() for servlet *MyIface* threw exception
java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:2786)
at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:94)
at com.sun.xml.bind.v2.runtime.output.UTF8XmlOutput.write(UTF8XmlOutput.java:394)
at com.sun.xml.bind.v2.runtime.output.UTF8XmlOutput.write(UTF8XmlOutput.java:386)
at com.sun.xml.bind.v2.runtime.output.UTF8XmlOutput.endTag(UTF8XmlOutput.java:273)
at com.sun.xml.bind.v2.runtime.output.NamespaceContextImpl$Element.endElement(NamespaceContextImpl.java:493)
at com.sun.xml.bind.v2.runtime.XMLSerializer.endElement(XMLSerializer.java:310)
at com.sun.xml.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(SingleElementNodeProperty.java:152)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:322)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:681)
at com.sun.xml.bind.v2.runtime.property.ArrayElementNodeProperty.serializeItem(ArrayElementNodeProperty.java:65)
at com.sun.xml.bind.v2.runtime.property.ArrayElementProperty.serializeListBody(ArrayElementProperty.java:168)
at com.sun.xml.bind.v2.runtime.property.ArrayERProperty.serializeBody(ArrayERProperty.java:152)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:322)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:681)
at com.sun.xml.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(SingleElementNodeProperty.java:150)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:322)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:681)
at com.sun.xml.bind.v2.runtime.property.ArrayElementNodeProperty.serializeItem(ArrayElementNodeProperty.java:65)
at com.sun.xml.bind.v2.runtime.property.ArrayElementProperty.serializeListBody(ArrayElementProperty.java:168)
at com.sun.xml.bind.v2.runtime.property.ArrayERProperty.serializeBody(ArrayERProperty.java:152)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:322)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:681)
at com.sun.xml.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(SingleElementNodeProperty.java:150)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:322)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:681)
at com.sun.xml.bind.v2.runtime.property.ArrayElementNodeProperty.serializeItem(ArrayElementNodeProperty.java:65)
at com.sun.xml.bind.v2.runtime.property.ArrayElementProperty.serializeListBody(ArrayElementProperty.java:168)
at com.sun.xml.bind.v2.runtime.property.ArrayERProperty.serializeBody(ArrayERProperty.java:152)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:322)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:681)
at com.sun.xml.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(SingleElementNodeProperty.java:150)
Could someone give me some tips about chunked parsing here please? I've check this thread amongst others, and my problem sounds similar to this, but i don't know which api/approach to use.
Here's my handler:
@SuppressWarnings("rawtypes")
public class MyHandler extends GenericSOAPHandler {
private void print(InputStream input, OutputStream out) throws Exception {
try {
DocumentBuilder parser;
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);
parser = factory.newDocumentBuilder();
Document document = parser.parse(input);
Transformer serializer = TransformerFactory.newInstance().newTransformer();
serializer.setOutputProperty(OutputKeys.INDENT, "yes");
serializer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
serializer.transform(new DOMSource(document), new StreamResult(out));
} catch (TransformerException e) {
// A fatal error occurred
throw new Exception(e);
}
}
@Override
protected boolean handleInbound(MessageContext msgContext) {
SOAPMessageContext soapMessageCtx = (SOAPMessageContext) msgContext;
SOAPMessage soapMessage = soapMessageCtx.getMessage();
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
try {
soapMessage.writeTo(outputStream);
byte[] array = outputStream.toByteArray();
ByteArrayInputStream inputStream = new ByteArrayInputStream(array);
System.out.println("SOAP request message:\n");
print(inputStream, System.out);
} catch (SOAPException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return true;
}
@Override
protected boolean handleOutbound(MessageContext msgContext) {
SOAPMessageContext soapMessageCtx = (SOAPMessageContext) msgContext;
SOAPMessage soapMessage = soapMessageCtx.getMessage();
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
try {
soapMessage.writeTo(outputStream);
byte[] array = outputStream.toByteArray();
ByteArrayInputStream inputStream = new ByteArrayInputStream(array);
System.out.println("SOAP response message:\n");
print(inputStream, System.out);
} catch (SOAPException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return true;
}
}
Thankyou
