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package org.glassfish.jersey.server.wadl.internal;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.net.URI;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.ProcessingException;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import javax.inject.Singleton;
import javax.xml.bind.Marshaller;
import org.glassfish.jersey.server.internal.LocalizationMessages;
import org.glassfish.jersey.server.model.ExtendedResource;
import org.glassfish.jersey.server.wadl.WadlApplicationContext;
import com.sun.research.ws.wadl.Application;
/**
*
* @author Paul Sandoz (paul.sandoz at oracle.com)
*/
@Singleton
@Path("application.wadl")
@ExtendedResource
public final class WadlResource {
public static final String HTTPDATEFORMAT = "EEE, dd MMM yyyy HH:mm:ss zzz";
private volatile URI lastBaseUri;
private volatile boolean lastDetailedWadl;
private byte[] wadlXmlRepresentation;
private String lastModified;
@Context
private WadlApplicationContext wadlContext;
public WadlResource() {
this.lastModified = new SimpleDateFormat(HTTPDATEFORMAT).format(new Date());
}
private boolean isCached(UriInfo uriInfo, boolean detailedWadl) {
return (lastBaseUri != null && lastBaseUri.equals(uriInfo.getBaseUri()) && lastDetailedWadl == detailedWadl);
}
@Produces({"application/vnd.sun.wadl+xml", "application/xml"})
@GET
public synchronized Response getWadl(@Context UriInfo uriInfo) {
try {
if (!wadlContext.isWadlGenerationEnabled()) {
return Response.status(Response.Status.NOT_FOUND).build();
}
final boolean detailedWadl = WadlUtils.isDetailedWadlRequested(uriInfo);
if ((wadlXmlRepresentation == null) || (!isCached(uriInfo, detailedWadl))) {
this.lastBaseUri = uriInfo.getBaseUri();
lastDetailedWadl = detailedWadl;
this.lastModified = new SimpleDateFormat(HTTPDATEFORMAT).format(new Date());
ApplicationDescription applicationDescription = wadlContext.getApplication(uriInfo,
detailedWadl);
Application application = applicationDescription.getApplication();
try {
final Marshaller marshaller = wadlContext.getJAXBContext().createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
final ByteArrayOutputStream os = new ByteArrayOutputStream();
marshaller.marshal(application, os);
wadlXmlRepresentation = os.toByteArray();
os.close();
} catch (Exception e) {
throw new ProcessingException("Could not marshal the wadl Application.", e);
}
}
return Response.ok(new ByteArrayInputStream(wadlXmlRepresentation)).header("Last-modified", lastModified).build();
} catch (Exception e) {
throw new ProcessingException("Error generating /application.wadl.", e);
}
}
@Produces({"application/xml"})
@GET
@Path("{path}")
public synchronized Response geExternalGrammar(
@Context UriInfo uriInfo,
@PathParam("path") String path) {
try {
// Fail if wadl generation is disabled
if (!wadlContext.isWadlGenerationEnabled()) {
return Response.status(Response.Status.NOT_FOUND).build();
}
ApplicationDescription applicationDescription =
wadlContext.getApplication(uriInfo, WadlUtils.isDetailedWadlRequested(uriInfo));
// Fail is we don't have any metadata for this path
ApplicationDescription.ExternalGrammar externalMetadata = applicationDescription.getExternalGrammar(path);
if (externalMetadata == null) {
return Response.status(Response.Status.NOT_FOUND).build();
}
// Return the data
return Response.ok().type(externalMetadata.getType())
.entity(externalMetadata.getContent())
.build();
} catch (Exception e) {
throw new ProcessingException(LocalizationMessages.ERROR_WADL_RESOURCE_EXTERNAL_GRAMMAR(), e);
}
}
}