this was cross posted to the dev list and was answered there, I think. -Marshall
On 7/22/2011 4:04 PM, James Jichun Zhu wrote:
> I ran into a problem using XmiCasDeserializer with multi-view.
>
> What I am doing here is something fairly simple. In my simple analysis engine,
> 1. I try to create a new view.
> 2. I pass the view's underlying CAS to XmiCasDeserializer so it can populate
> the CAS with objects deserialized from a given XMI file.
>
> It works if I use the default "_InitialView". But fails to work if I use a new
> view. Also, if I don't call XmiCasDeserializer the new view would stay ok, and
> the empty sofa can still be passed out of the analysis engine component to
> downstream components. However, once I call XmiCasDeserializer on the new
> view, the sofa gets affected and blows up at the downstream components.
>
> I'd really appreciate if someone can help me figure out if it is an issue with
> XmiCasDeserializer or I am doing it wrong.
>
> Here are some more details:
> Here is how I created the views.
>
> JCas defaultView = null;
> JCas goldView = null;
> JCas engineView = null;
>
> try {
> defaultView = aJCas.getView("_InitialView");
> goldView = aJCas.createView("goldTokens"); *// I have a output
> sofa "goldTokens" defined in the descriptor.*
> engineView = aJCas.createView("engineTokens"); *// I have a output
> sofa "engineTokens" defined in the descriptor.*
>
> } catch (CASException e) {
> e.printStackTrace();
> }
>
> Here is how I used XmiCasDeserializer to extract objects from XMI file and
> populate the CASes.
>
> try {
> goldInputStream = new FileInputStream(goldXmiFile);
> engineInputStream = new FileInputStream(engineXmiFile);
> XmiCasDeserializer.deserialize(goldInputStream,
> goldView.getCas(), false); *// Nothing is inserted into
> the CAS and the view/sofa also seems to be ruined.*
> XmiCasDeserializer.deserialize(engineInputStream,
> engineView.getCas(), false); *// Nothing is inserted into
> the CAS and the view/sofa also seems to be ruined.*
> } catch (FileNotFoundException fnfe) {
> fnfe.printStackTrace();
> return;
> } catch (SAXException saxe) {
> saxe.printStackTrace();
> } catch (IOException ioe) {
> ioe.printStackTrace();
> } finally {
> try {
> goldInputStream.close();
> engineInputStream.close();
> } catch (IOException ioe) {
> ioe.printStackTrace();
> }
> }
>
