EPUB generator skeleton and corpus download

git-svn-id: https://develop.sub.uni-goettingen.de/repos/textgrid/trunk/services/aggregator@13479 7c539038-3410-0410-b1ec-0f2a7bf1c452

src/main/java/info/textgrid/services/aggregator/EPUB.java

+package info.textgrid.services.aggregator;
+
+import info.textgrid.namespaces.metadata.core._2010.MetadataContainerType;
+import info.textgrid.namespaces.metadata.core._2010.ObjectType;
+import info.textgrid.namespaces.middleware.tgcrud.services.tgcrudservice.AuthFault;
+import info.textgrid.namespaces.middleware.tgcrud.services.tgcrudservice.IoFault;
+import info.textgrid.namespaces.middleware.tgcrud.services.tgcrudservice.MetadataParseFault;
+import info.textgrid.namespaces.middleware.tgcrud.services.tgcrudservice.ObjectNotFoundFault;
+import info.textgrid.namespaces.middleware.tgcrud.services.tgcrudservice.TGCrudService;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.net.URI;
+import java.text.MessageFormat;
+import java.util.logging.Logger;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
+
+import com.google.common.io.Files;
+
+@Path("/epub")
+public class EPUB {
+	private final ITextGridRep repository = TextGridRepProvider.getInstance();
+
+	final Logger logger = Logger.getLogger("info.textgrid.services.aggregator");
+
+	@GET
+	@Path(value="/{object}")
+	@Produces(value="application/epub+zip")
+	public Response get(@PathParam("object") final URI uri) {
+		logger.fine("EPUB called for root object: " + uri);
+		final TGCrudService crud = repository.getCRUDService();
+		try {
+			final MetadataContainerType container = crud.readMetadata(null, null, uri.toString());
+			final ObjectType rootObject = container.getObject();
+			final String mimeType = rootObject.getGeneric().getProvided().getFormat();
+			final boolean aggregation = mimeType.contains("aggregation");
+			if (!aggregation && !mimeType.matches("^text/.*xml.*")) {
+				final String errorMsg = "The EPUB export can only convert aggregations or XML documents to EPUB, however, the document {0} you referred to has the MIME type {1}.";
+				logger.warning("Failing with: " + errorMsg);
+				return Response
+						.status(Status.UNSUPPORTED_MEDIA_TYPE)
+						.entity(MessageFormat.format(errorMsg, uri, mimeType))
+						.type("text/plain")
+						.build();
+			}
+
+			final File workingDir = Files.createTempDir();
+			logger.fine("Using " + workingDir + " to build the E-Book");
+
+			// First, use the aggregator to create a TEI corpus file to build on
+			final TEICorpusSerializer corpusSerializer = new TEICorpusSerializer(rootObject, true);
+			final File corpus = new File(workingDir, "corpus.xml");
+			final FileOutputStream corpusOutput = new FileOutputStream(corpus);
+			corpusSerializer.write(corpusOutput);
+			corpusOutput.close();
+
+
+
+			return Response.ok().type("text/plain").entity("Done, see " + workingDir).build();
+
+
+		} catch (final ObjectNotFoundFault e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (final MetadataParseFault e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (final IoFault e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (final AuthFault e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (final FileNotFoundException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (final WebApplicationException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (final IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		return Response.noContent().build();
+
+
+
+	}
+
+}

src/main/webapp/WEB-INF/beans.xml

@@ -23,6 +23,7 @@ http://cxf.apache.org/schemas/jaxrs.xsd">
     <jaxrs:serviceBeans>
       <!-- bean class="info.textgrid.services.aggregator.HelloWorld" /-->
       <bean class="info.textgrid.services.aggregator.TEICorpus" scope="singleton" />
+      <bean class="info.textgrid.services.aggregator.EPUB" scope="singleton" />
     </jaxrs:serviceBeans>
     <jaxrs:providers>
         <!-- bean class="org.codehaus.jackson.jaxrs.JacksonJsonProvider"/-->