How do you retrieve a record from a repository?

[mmalmeida]

I am playing around with the framework and trying to retrieve a record (see test case below), but it is failing with something to do with the Transformers:

    at com.lyncode.xoai.xml.XSLPipeline.process(XSLPipeline.java:36)
    at com.lyncode.xoai.serviceprovider.parsers.RecordParser.parse(RecordParser.java:67)
    at com.lyncode.xoai.serviceprovider.parsers.GetRecordParser.parse(GetRecordParser.java:65)
    at com.lyncode.xoai.serviceprovider.handler.GetRecordHandler.handle(GetRecordHandler.java:45)
    at com.lyncode.xoai.serviceprovider.ServiceProvider.getRecord(ServiceProvider.java:61)

What is missing in the example? This is definitely that would be tackled in #13 .
Note that I've also tried without the context.withTransformer(t). withTransformer the code will reach the exception cycle with two transformers in the list, the one supplied and a null.

public class RemoteRepoTest {

    ServiceProvider underTest;

    @Before
    public void before() throws TransformerConfigurationException, TransformerFactoryConfigurationError{
        Context context = new Context().withBaseUrl("http://www.rcaap.pt/oai");
        Transformer t  = TransformerFactory.newInstance().newTransformer();
        context.withTransformer(t);
        HttpOAIClient client = new HttpOAIClient(context);
        context.withOAIClient(client);

        underTest = new ServiceProvider(context);

    }

    @Test
    public void remoteRepoTest() throws Exception {

        Identify identify = underTest.identify();
        assertEquals(identify.getRepositoryName(), "RCAAP - Repositório Científico de Acesso Aberto de Portugal");
    }

    @Test
    public void getRecord() throws Exception {
        GetRecordParameters parameters = new GetRecordParameters().withIdentifier("oai:digituma.uma.pt:10400.13/9").withMetadataFormatPrefix("oai_dc");
        Record record = underTest.getRecord(parameters);
        record.getAbouts();
    }
}

[mmalmeida]

Following up on this, I advanced a bit, changing the @before (essentially adding the withMetadataTransformer to the context:

    @Before
    public void before() throws TransformerConfigurationException, TransformerFactoryConfigurationError{
        Transformer t  = TransformerFactory.newInstance().newTransformer();
        Context context = new Context().withBaseUrl("http://www.rcaap.pt/oai").
                withMetadataTransformer("oai_dc", t);
        HttpOAIClient client = new HttpOAIClient(context);

        context.withOAIClient(client);
        underTest = new ServiceProvider(context);

    }

The exception is now the one below - basically the MetadataParser breaks at "reader.next(elementName(localPart(equalTo("metadata"))));" since it cannot find an element called metadata.

java.util.NoSuchElementException
    at org.codehaus.stax2.ri.Stax2EventReaderImpl.throwEndOfInput(Stax2EventReaderImpl.java:453)
    at org.codehaus.stax2.ri.Stax2EventReaderImpl.nextEvent(Stax2EventReaderImpl.java:242)
    at com.lyncode.xml.XmlReader.next(XmlReader.java:132)
    at com.lyncode.xoai.serviceprovider.parsers.MetadataParser.parse(MetadataParser.java:39)
    at com.lyncode.xoai.serviceprovider.parsers.RecordParser.parse(RecordParser.java:67)
    at com.lyncode.xoai.serviceprovider.parsers.GetRecordParser.parse(GetRecordParser.java:65)
    at com.lyncode.xoai.serviceprovider.handler.GetRecordHandler.handle(GetRecordHandler.java:45)
    at com.lyncode.xoai.serviceprovider.ServiceProvider.getRecord(ServiceProvider.java:61)

It seems the code is trying to find the metadata element twice, because in the RecordParser.parse that preceeds this code the contents of the metadata tag are already being populated in a content String:

            reader.next(elementName(localPart(equalTo("metadata")))).next(aStartElement());
            String content = reader.retrieveCurrentAsString();