@GET
@Path("/{bitstream_id}")
@Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})
public Bitstream getBitstream(
@PathParam("bitstream_id") Integer bitstream_id, @QueryParam("expand") String expand) {
org.dspace.core.Context context = null;
try {
context = new org.dspace.core.Context();
org.dspace.content.Bitstream bitstream =
org.dspace.content.Bitstream.find(context, bitstream_id);
if (AuthorizeManager.authorizeActionBoolean(
context, bitstream, org.dspace.core.Constants.READ)) {
return new org.dspace.rest.common.Bitstream(bitstream, expand);
} else {
throw new WebApplicationException(Response.Status.UNAUTHORIZED);
}
} catch (SQLException e) {
log.error(e.getMessage());
throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
} finally {
if (context != null) {
try {
context.complete();
} catch (SQLException e) {
log.error(e.getMessage() + " occurred while trying to close");
}
}
}
}
@GET
@Path("/{bitstream_id}/retrieve")
public javax.ws.rs.core.Response getFile(
@PathParam("bitstream_id") final Integer bitstream_id,
@QueryParam("userIP") String user_ip,
@QueryParam("userAgent") String user_agent,
@QueryParam("xforwarderfor") String xforwarderfor,
@Context HttpHeaders headers,
@Context HttpServletRequest request) {
org.dspace.core.Context context = null;
try {
context = new org.dspace.core.Context();
org.dspace.content.Bitstream bitstream =
org.dspace.content.Bitstream.find(context, bitstream_id);
if (AuthorizeManager.authorizeActionBoolean(
context, bitstream, org.dspace.core.Constants.READ)) {
if (writeStatistics) {
writeStats(context, bitstream_id, user_ip, user_agent, xforwarderfor, headers, request);
}
return Response.ok(bitstream.retrieve()).type(bitstream.getFormat().getMIMEType()).build();
} else {
throw new WebApplicationException(Response.Status.UNAUTHORIZED);
}
} catch (IOException e) {
log.error(e.getMessage());
throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
} catch (SQLException e) {
log.error(e.getMessage());
throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
} catch (AuthorizeException e) {
log.error(e.getMessage());
throw new WebApplicationException(Response.Status.UNAUTHORIZED);
} finally {
if (context != null) {
try {
context.complete();
} catch (SQLException e) {
log.error(e.getMessage() + " occurred while trying to close");
}
}
}
}
/**
* Return instance of collection with passed id. You can add more properties through expand
* parameter.
*
* @param expand String in which is what you want to add to returned instance of collection.
* Options are: "all", "parentCommunityList", "parentCommunity", "items", "license" and
* "logo". If you want to use multiple options, it must be separated by commas.
* @param limit Limit value for items in list in collection. Default value is 100.
* @param offset Offset of start index in list of items of collection. Default value is 0.
* @param filters Comma separated list of Item Filters to use to evaluate against the items in a
* collection
* @param query_field List of metadata fields to evaluate in a metadata query. Each list value is
* used in conjunction with a query_op and query_field.
* @param query_op List of metadata operators to use in a metadata query. Each list value is used
* in conjunction with a query_field and query_field.
* @param query_val List of metadata values to evaluate in a metadata query. Each list value is
* used in conjunction with a query_value and query_op.
* @param collSel List of collections to query.
* @param headers If you want to access to collection under logged user into context. In headers
* must be set header "rest-dspace-token" with passed token from login method.
* @return Return instance of collection. It can also return status code NOT_FOUND(404) if id of
* collection is incorrect or status code UNATHORIZED(401) if user has no permission to read
* collection.
* @throws WebApplicationException It is thrown when was problem with database reading
* (SQLException) or problem with creating context(ContextException). It is thrown by
* NOT_FOUND and UNATHORIZED status codes, too.
*/
@GET
@Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})
public org.dspace.rest.common.ItemFilter getItemQuery(
@QueryParam("expand") String expand,
@QueryParam("limit") @DefaultValue("100") Integer limit,
@QueryParam("offset") @DefaultValue("0") Integer offset,
@QueryParam("userIP") String user_ip,
@QueryParam("userAgent") String user_agent,
@QueryParam("xforwarderfor") String xforwarderfor,
@QueryParam("filters") @DefaultValue("is_item,all_filters") String filters,
@QueryParam("query_field[]") @DefaultValue("dc.title") List<String> query_field,
@QueryParam("query_op[]") @DefaultValue("exists") List<String> query_op,
@QueryParam("query_val[]") @DefaultValue("") List<String> query_val,
@QueryParam("collSel[]") @DefaultValue("") List<String> collSel,
@Context HttpHeaders headers,
@Context HttpServletRequest request) {
org.dspace.core.Context context = null;
ItemFilterSet itemFilterSet = new ItemFilterSet(filters, true);
ItemFilter result = itemFilterSet.getAllFiltersFilter();
try {
context = createContext(getUser(headers));
if (!configurationService.getBooleanProperty("rest.reporting-authenticate", true)) {
context.turnOffAuthorisationSystem();
}
int index = Math.min(query_field.size(), Math.min(query_op.size(), query_val.size()));
List<ItemFilterQuery> itemFilterQueries = new ArrayList<ItemFilterQuery>();
for (int i = 0; i < index; i++) {
itemFilterQueries.add(
new ItemFilterQuery(query_field.get(i), query_op.get(i), query_val.get(i)));
}
String regexClause = configurationService.getProperty("rest.regex-clause");
if (regexClause == null) {
regexClause = "";
}
List<UUID> uuids = getUuidsFromStrings(collSel);
List<List<MetadataField>> listFieldList = getMetadataFieldsList(context, query_field);
Iterator<org.dspace.content.Item> childItems =
itemService.findByMetadataQuery(
context, listFieldList, query_op, query_val, uuids, regexClause, offset, limit);
int count = itemFilterSet.processSaveItems(context, childItems, true, expand);
writeStats(
siteService.findSite(context),
UsageEvent.Action.VIEW,
user_ip,
user_agent,
xforwarderfor,
headers,
request,
context);
result.annotateQuery(query_field, query_op, query_val);
result.setUnfilteredItemCount(count);
context.complete();
} catch (IOException e) {
processException(e.getMessage(), context);
} catch (SQLException e) {
processException(e.getMessage(), context);
} catch (AuthorizeException e) {
processException(e.getMessage(), context);
} catch (ContextException e) {
processException("Unauthorized filtered item query. " + e.getMessage(), context);
} finally {
processFinally(context);
}
return result;
}
