@GET
@Produces(MIMETYPE_BINARY)
public Response getBinary(final @Context UriInfo uriInfo) {
if (LOG.isDebugEnabled()) {
LOG.debug("GET " + uriInfo.getAbsolutePath() + " as " + MIMETYPE_BINARY);
}
servlet.getMetrics().incrementRequests(1);
try {
KeyValue value = generator.next();
if (value == null) {
LOG.info("generator exhausted");
return Response.noContent().build();
}
ResponseBuilder response = Response.ok(value.getValue());
response.cacheControl(cacheControl);
response.header("X-Row", Base64.encodeBytes(value.getRow()));
response.header(
"X-Column",
Base64.encodeBytes(KeyValue.makeColumn(value.getFamily(), value.getQualifier())));
response.header("X-Timestamp", value.getTimestamp());
return response.build();
} catch (IllegalStateException e) {
ScannerResource.delete(id);
throw new WebApplicationException(Response.Status.GONE);
}
}
@DELETE
public Response delete(final @Context UriInfo uriInfo) {
if (LOG.isDebugEnabled()) {
LOG.debug("DELETE " + uriInfo.getAbsolutePath());
}
servlet.getMetrics().incrementRequests(1);
if (servlet.isReadOnly()) {
throw new WebApplicationException(Response.Status.FORBIDDEN);
}
ScannerResource.delete(id);
return Response.ok().build();
}
@GET
@Produces({MIMETYPE_XML, MIMETYPE_JSON, MIMETYPE_PROTOBUF})
public Response get(
final @Context UriInfo uriInfo,
@QueryParam("n") int maxRows,
final @QueryParam("c") int maxValues) {
if (LOG.isDebugEnabled()) {
LOG.debug("GET " + uriInfo.getAbsolutePath());
}
servlet.getMetrics().incrementRequests(1);
CellSetModel model = new CellSetModel();
RowModel rowModel = null;
byte[] rowKey = null;
int limit = batch;
if (maxValues > 0) {
limit = maxValues;
}
int count = limit;
do {
KeyValue value = null;
try {
value = generator.next();
} catch (IllegalStateException e) {
ScannerResource.delete(id);
throw new WebApplicationException(Response.Status.GONE);
}
if (value == null) {
LOG.info("generator exhausted");
// respond with 204 (No Content) if an empty cell set would be
// returned
if (count == limit) {
return Response.noContent().build();
}
break;
}
if (rowKey == null) {
rowKey = value.getRow();
rowModel = new RowModel(rowKey);
}
if (!Bytes.equals(value.getRow(), rowKey)) {
// if maxRows was given as a query param, stop if we would exceed the
// specified number of rows
if (maxRows > 0) {
if (--maxRows == 0) {
generator.putBack(value);
break;
}
}
model.addRow(rowModel);
rowKey = value.getRow();
rowModel = new RowModel(rowKey);
}
rowModel.addCell(
new CellModel(
value.getFamily(), value.getQualifier(), value.getTimestamp(), value.getValue()));
} while (--count > 0);
model.addRow(rowModel);
ResponseBuilder response = Response.ok(model);
response.cacheControl(cacheControl);
return response.build();
}
