// returns recently changed items, checking for accessibility
private Item[] getItems(Context context, DSpaceObject dso) throws IOException, SQLException {
try {
// new method of doing the browse:
String idx = ConfigurationManager.getProperty("recent.submissions.sort-option");
if (idx == null) {
throw new IOException(
"There is no configuration supplied for: recent.submissions.sort-option");
}
BrowseIndex bix = BrowseIndex.getItemBrowseIndex();
if (bix == null) {
throw new IOException("There is no browse index with the name: " + idx);
}
BrowserScope scope = new BrowserScope(context);
scope.setBrowseIndex(bix);
if (dso != null) {
scope.setBrowseContainer(dso);
}
for (SortOption so : SortOption.getSortOptions()) {
if (so.getName().equals(idx)) {
scope.setSortBy(so.getNumber());
}
}
scope.setOrder(SortOption.DESCENDING);
scope.setResultsPerPage(itemCount);
// gather & add items to the feed.
BrowseEngine be = new BrowseEngine(context);
BrowseInfo bi = be.browseMini(scope);
Item[] results = bi.getItemResults(context);
if (includeAll) {
return results;
} else {
// Check to see if we can include this item
// Group[] authorizedGroups = AuthorizeManager.getAuthorizedGroups(context, results[i],
// Constants.READ);
// boolean added = false;
List<Item> items = new ArrayList<Item>();
for (Item result : results) {
checkAccess:
for (Group group :
AuthorizeManager.getAuthorizedGroups(context, result, Constants.READ)) {
if ((group.getID() == Group.ANONYMOUS_ID)) {
items.add(result);
break checkAccess;
}
}
}
return items.toArray(new Item[items.size()]);
}
} catch (SortException se) {
log.error("caught exception: ", se);
throw new IOException(se.getMessage(), se);
} catch (BrowseException e) {
log.error("caught exception: ", e);
throw new IOException(e.getMessage(), e);
}
}
/**
* Convert the value into an offset into the table for this browse
*
* @return the focus value to use
* @throws BrowseException
*/
private int getOffsetForValue(String value) throws BrowseException {
// get the table name. We don't really need to care about whether we are in a
// community or collection at this point. This is only for full or second
// level browse, so there is no need to worry about distinct value browsing
String tableName = browseIndex.getTableName();
// we need to make sure that we select from the correct column. If the sort option
// is the 0th option then we use sort_value, but if it is one of the others we have
// to select from that column instead. Otherwise, we end up missing the focus value
// to do comparisons in other columns. The use of the focus value needs to be consistent
// across the browse
SortOption so = scope.getSortOption();
if (so == null || so.getNumber() == 0) {
if (browseIndex.getSortOption() != null) so = browseIndex.getSortOption();
}
String col = "sort_1";
if (so.getNumber() > 0) {
col = "sort_" + Integer.toString(so.getNumber());
}
// now get the DAO to do the query for us, returning the highest
// string value in the given column in the given table for the
// item (I think)
return dao.doOffsetQuery(col, value, scope.isAscending());
}
/**
* Get the defined sort option by number (.1, .2, etc).
*
* @param number the number of the sort option as given in the config file
* @return the configured sort option with given number
* @throws SortException if sort error
*/
public static SortOption getSortOption(int number) throws SortException {
for (SortOption so : SortOption.getSortOptions()) {
if (so.getNumber() == number) {
return so;
}
}
return null;
}
/**
* Return the focus value.
*
* @return the focus value to use
* @throws BrowseException
*/
private String getJumpToValue() throws BrowseException {
log.debug(LogManager.getHeader(context, "get_focus_value", ""));
// if the focus is by value, just return it
if (scope.hasJumpToValue()) {
log.debug(
LogManager.getHeader(
context, "get_focus_value_return", "return=" + scope.getJumpToValue()));
return scope.getJumpToValue();
}
// if the focus is to start with, then we need to return the value of the starts with
if (scope.hasStartsWith()) {
log.debug(
LogManager.getHeader(
context, "get_focus_value_return", "return=" + scope.getStartsWith()));
return scope.getStartsWith();
}
// since the focus is not by value, we need to obtain it
// get the id of the item to focus on
int id = scope.getJumpToItem();
// get the table name. We don't really need to care about whether we are in a
// community or collection at this point. This is only for full or second
// level browse, so there is no need to worry about distinct value browsing
String tableName = browseIndex.getTableName();
// we need to make sure that we select from the correct column. If the sort option
// is the 0th option then we use sort_value, but if it is one of the others we have
// to select from that column instead. Otherwise, we end up missing the focus value
// to do comparisons in other columns. The use of the focus value needs to be consistent
// across the browse
SortOption so = scope.getSortOption();
if (so == null || so.getNumber() == 0) {
if (browseIndex.getSortOption() != null) {
so = browseIndex.getSortOption();
}
}
String col = "sort_1";
if (so.getNumber() > 0) {
col = "sort_" + Integer.toString(so.getNumber());
}
// now get the DAO to do the query for us, returning the highest
// string value in the given column in the given table for the
// item (I think)
String max = dao.doMaxQuery(col, tableName, id);
log.debug(LogManager.getHeader(context, "get_focus_value_return", "return=" + max));
return max;
}
/**
* Convert the value into an offset into the table for this browse
*
* @return the focus value to use
* @throws BrowseException
*/
private int getOffsetForValue(String value) throws BrowseException {
// we need to make sure that we select from the correct column. If the sort option
// is the 0th option then we use sort_value, but if it is one of the others we have
// to select from that column instead. Otherwise, we end up missing the focus value
// to do comparisons in other columns. The use of the focus value needs to be consistent
// across the browse
SortOption so = scope.getSortOption();
if (so == null || so.getNumber() == 0) {
if (browseIndex.getSortOption() != null) {
so = browseIndex.getSortOption();
}
}
String col = "sort_1";
if (so.getNumber() > 0) {
col = "sort_" + Integer.toString(so.getNumber());
}
// now get the DAO to do the query for us, returning the highest
// string value in the given column in the given table for the
// item (I think)
return dao.doOffsetQuery(col, value, scope.isAscending());
}
protected void buildSearchControls(Division div) throws WingException {
Table controlsTable = div.addTable("search-controls", 1, 3);
Row controlsRow = controlsTable.addRow(Row.ROLE_DATA);
// Create a control for the number of records to display
Cell rppCell = controlsRow.addCell();
rppCell.addContent(T_rpp);
Select rppSelect = rppCell.addSelect("rpp");
for (int i : RESULTS_PER_PAGE_PROGRESSION) {
rppSelect.addOption((i == getParameterRpp()), i, Integer.toString(i));
}
Cell sortCell = controlsRow.addCell();
try {
// Create a drop down of the different sort columns available
sortCell.addContent(T_sort_by);
Select sortSelect = sortCell.addSelect("sort_by");
sortSelect.addOption(false, 0, T_sort_by_relevance);
for (SortOption so : SortOption.getSortOptions()) {
if (so.isVisible()) {
sortSelect.addOption(
(so.getNumber() == getParameterSortBy()),
so.getNumber(),
message("xmlui.ArtifactBrowser.AbstractSearch.sort_by." + so.getName()));
}
}
} catch (SortException se) {
throw new WingException("Unable to get sort options", se);
}
// Create a control to changing ascending / descending order
Cell orderCell = controlsRow.addCell();
orderCell.addContent(T_order);
Select orderSelect = orderCell.addSelect("order");
orderSelect.addOption(
SortOption.ASCENDING.equals(getParameterOrder()), SortOption.ASCENDING, T_order_asc);
orderSelect.addOption(
SortOption.DESCENDING.equals(getParameterOrder()), SortOption.DESCENDING, T_order_desc);
// Create a control for the number of authors per item to display
// FIXME This is currently disabled, as the supporting functionality
// is not currently present in xmlui
// if (isItemBrowse(info))
// {
// controlsForm.addContent(T_etal);
// Select etalSelect = controlsForm.addSelect(BrowseParams.ETAL);
//
// etalSelect.addOption((info.getEtAl() < 0), 0, T_etal_all);
// etalSelect.addOption(1 == info.getEtAl(), 1, Integer.toString(1));
//
// for (int i = 5; i <= 50; i += 5)
// {
// etalSelect.addOption(i == info.getEtAl(), i, Integer.toString(i));
// }
// }
}
/**
* Query DSpace for a list of all items / collections / or communities that match the given search
* query.
*/
protected void performSearch() throws SQLException, IOException, UIException {
if (queryResults != null) {
return;
}
Context context = ContextUtil.obtainContext(objectModel);
String query = getQuery();
DSpaceObject scope = getScope();
int page = getParameterPage();
queryArgs = new QueryArgs();
queryArgs.setPageSize(getParameterRpp());
try {
queryArgs.setSortOption(SortOption.getSortOption(getParameterSortBy()));
} catch (SortException se) {
}
queryArgs.setSortOrder(getParameterOrder());
queryArgs.setQuery(query);
if (page > 1) {
queryArgs.setStart((Integer.valueOf(page) - 1) * queryArgs.getPageSize());
} else {
queryArgs.setStart(0);
}
QueryResults qResults = null;
if (scope instanceof Community) {
qResults = DSQuery.doQuery(context, queryArgs, (Community) scope);
} else if (scope instanceof Collection) {
qResults = DSQuery.doQuery(context, queryArgs, (Collection) scope);
} else {
qResults = DSQuery.doQuery(context, queryArgs);
}
this.queryResults = qResults;
}
/**
* Utility method for obtaining a string representation of the browse. This is useful only for
* debug
*/
public String toString() {
try {
StringBuffer sb = new StringBuffer();
// calculate the range for display
String from = Integer.toString(overallPosition + 1);
String to = Integer.toString(overallPosition + results.size());
String of = Integer.toString(total);
// report on the positional information of the browse
sb.append("BrowseInfo String Representation: ");
sb.append("Browsing " + from + " to " + to + " of " + of + " ");
// insert the information about which index
sb.append(
"in index: "
+ browseIndex.getName()
+ " (data type: "
+ browseIndex.getDataType()
+ ", display type: "
+ browseIndex.getDisplayType()
+ ") ");
sb.append("||");
// report on the browse scope container
String container = "all of DSpace";
DSpaceObject theContainer = null;
if (inCollection()) {
container = "collection";
theContainer = this.collection;
} else if (inCommunity()) {
container = "community";
theContainer = this.community;
}
String containerID = "no id available/necessary";
if (theContainer != null) {
containerID =
Integer.toString(theContainer.getID()) + " (" + theContainer.getHandle() + ")";
}
sb.append("Browsing in " + container + ": " + containerID);
sb.append("||");
// load the item list display configuration
ItemListConfig config = new ItemListConfig();
// some information about the columns to be displayed
if (browseIndex.isItemIndex()) {
sb.append("Listing over " + Integer.toString(config.numCols()) + " columns: ");
for (int k = 1; k <= config.numCols(); k++) {
if (k > 1) {
sb.append(",");
}
String[] meta = config.getMetadata(k);
sb.append(meta[0] + "." + meta[1] + "." + meta[2]);
}
if (value != null) {
sb.append(" on value: ").append(value);
}
if (isStartsWith()) {
sb.append(" sort column starting with: ").append(focus);
} else if (hasFocus()) {
sb.append(" sort column focus: ").append(focus);
}
} else if (browseIndex.isMetadataIndex()) {
sb.append("Listing single column: ").append(browseIndex.getMetadata());
if (isStartsWith()) {
sb.append(" sort column starting with: ").append(focus);
} else if (hasFocus()) {
sb.append(" sort column focus: ").append(focus);
}
}
sb.append("||");
// some information about how the data is sorted
String direction = (ascending ? "ASC" : "DESC");
sb.append(
"Sorting by: "
+ sortOption.getMetadata()
+ " "
+ direction
+ " (option "
+ Integer.toString(sortOption.getNumber())
+ ")");
sb.append("||");
// output the results
if (browseIndex.isMetadataIndex() && !isSecondLevel()) {
sb.append(valueListingString());
} else if (browseIndex.isItemIndex() || isSecondLevel()) {
sb.append(fullListingString(config));
}
sb.append("||");
// tell us what the next and previous values are going to be
sb.append("Top of next page: ");
if (hasNextPage()) {
sb.append("offset: ").append(Integer.toString(this.nextOffset));
} else {
sb.append("n/a");
}
sb.append(";");
sb.append("Top of previous page: ");
if (hasPrevPage()) {
sb.append("offset: ").append(Integer.toString(this.prevOffset));
} else {
sb.append("n/a");
}
sb.append("||");
return sb.toString();
} catch (SQLException e) {
return e.getMessage();
} catch (BrowseException e) {
return e.getMessage();
}
}
protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, SQLException, AuthorizeException {
// dispense with simple service document requests
String scope = request.getParameter("scope");
if (scope != null && "".equals(scope)) {
scope = null;
}
String path = request.getPathInfo();
if (path != null && path.endsWith("description.xml")) {
String svcDescrip = OpenSearch.getDescription(scope);
response.setContentType(OpenSearch.getContentType("opensearchdescription"));
response.setContentLength(svcDescrip.length());
response.getWriter().write(svcDescrip);
return;
}
// get enough request parameters to decide on action to take
String format = request.getParameter("format");
if (format == null || "".equals(format)) {
// default to atom
format = "atom";
}
// do some sanity checking
if (!OpenSearch.getFormats().contains(format)) {
response.sendError(HttpServletResponse.SC_BAD_REQUEST);
return;
}
// then the rest - we are processing the query
String query = request.getParameter("query");
int start = Util.getIntParameter(request, "start");
int rpp = Util.getIntParameter(request, "rpp");
int sort = Util.getIntParameter(request, "sort_by");
String order = request.getParameter("order");
String sortOrder =
(order == null || order.length() == 0 || order.toLowerCase().startsWith("asc"))
? SortOption.ASCENDING
: SortOption.DESCENDING;
QueryArgs qArgs = new QueryArgs();
// can't start earlier than 0 in the results!
if (start < 0) {
start = 0;
}
qArgs.setStart(start);
if (rpp > 0) {
qArgs.setPageSize(rpp);
}
qArgs.setSortOrder(sortOrder);
if (sort > 0) {
try {
qArgs.setSortOption(SortOption.getSortOption(sort));
} catch (Exception e) {
// invalid sort id - do nothing
}
}
qArgs.setSortOrder(sortOrder);
// Ensure the query is non-null
if (query == null) {
query = "";
}
// If there is a scope parameter, attempt to dereference it
// failure will only result in its being ignored
DSpaceObject container = (scope != null) ? HandleManager.resolveToObject(context, scope) : null;
// Build log information
String logInfo = "";
// get the start of the query results page
qArgs.setQuery(query);
// Perform the search
QueryResults qResults = null;
if (container == null) {
qResults = DSQuery.doQuery(context, qArgs);
} else if (container instanceof Collection) {
logInfo = "collection_id=" + container.getID() + ",";
qResults = DSQuery.doQuery(context, qArgs, (Collection) container);
} else if (container instanceof Community) {
logInfo = "community_id=" + container.getID() + ",";
qResults = DSQuery.doQuery(context, qArgs, (Community) container);
}
// now instantiate the results
DSpaceObject[] results = new DSpaceObject[qResults.getHitHandles().size()];
for (int i = 0; i < qResults.getHitHandles().size(); i++) {
String myHandle = (String) qResults.getHitHandles().get(i);
DSpaceObject dso = HandleManager.resolveToObject(context, myHandle);
if (dso == null) {
throw new SQLException("Query \"" + query + "\" returned unresolvable handle: " + myHandle);
}
results[i] = dso;
}
// Log
log.info(
LogManager.getHeader(
context,
"search",
logInfo + "query=\"" + query + "\",results=(" + results.length + ")"));
// format and return results
Map<String, String> labelMap = getLabels(request);
Document resultsDoc =
OpenSearch.getResultsDoc(format, query, qResults, container, results, labelMap);
try {
Transformer xf = TransformerFactory.newInstance().newTransformer();
response.setContentType(OpenSearch.getContentType(format));
xf.transform(new DOMSource(resultsDoc), new StreamResult(response.getWriter()));
} catch (TransformerException e) {
log.error(e);
throw new ServletException(e.toString());
}
}
protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, SQLException, AuthorizeException {
// Get the query
String query = request.getParameter("query");
int start = UIUtil.getIntParameter(request, "start");
String advanced = request.getParameter("advanced");
String fromAdvanced = request.getParameter("from_advanced");
int sortBy = UIUtil.getIntParameter(request, "sort_by");
String order = request.getParameter("order");
int rpp = UIUtil.getIntParameter(request, "rpp");
String advancedQuery = "";
HashMap queryHash = new HashMap();
// can't start earlier than 0 in the results!
if (start < 0) {
start = 0;
}
int collCount = 0;
int commCount = 0;
int itemCount = 0;
Item[] resultsItems;
Collection[] resultsCollections;
Community[] resultsCommunities;
QueryResults qResults = null;
QueryArgs qArgs = new QueryArgs();
SortOption sortOption = null;
if (request.getParameter("etal") != null)
qArgs.setEtAl(UIUtil.getIntParameter(request, "etal"));
try {
if (sortBy > 0) {
sortOption = SortOption.getSortOption(sortBy);
qArgs.setSortOption(sortOption);
}
if (SortOption.ASCENDING.equalsIgnoreCase(order)) {
qArgs.setSortOrder(SortOption.ASCENDING);
} else {
qArgs.setSortOrder(SortOption.DESCENDING);
}
} catch (Exception e) {
}
if (rpp > 0) {
qArgs.setPageSize(rpp);
}
// if the "advanced" flag is set, build the query string from the
// multiple query fields
if (advanced != null) {
query = qArgs.buildQuery(request);
advancedQuery = qArgs.buildHTTPQuery(request);
}
// Ensure the query is non-null
if (query == null) {
query = "";
}
// Get the location parameter, if any
String location = request.getParameter("location");
String newURL;
// If there is a location parameter, we should redirect to
// do the search with the correct location.
if ((location != null) && !location.equals("")) {
String url = "";
if (!location.equals("/")) {
// Location points to a resource
url = "/resource/" + location;
}
// Encode the query
query = URLEncoder.encode(query, Constants.DEFAULT_ENCODING);
if (advancedQuery.length() > 0) {
query = query + "&from_advanced=true&" + advancedQuery;
}
// Do the redirect
response.sendRedirect(
response.encodeRedirectURL(
request.getContextPath() + url + "/simple-search?query=" + query));
return;
}
// Build log information
String logInfo = "";
// Get our location
Community community = UIUtil.getCommunityLocation(request);
Collection collection = UIUtil.getCollectionLocation(request);
// get the start of the query results page
// List resultObjects = null;
qArgs.setQuery(query);
qArgs.setStart(start);
// Perform the search
if (collection != null) {
logInfo = "collection_id=" + collection.getID() + ",";
// Values for drop-down box
request.setAttribute("community", community);
request.setAttribute("collection", collection);
qResults = DSQuery.doQuery(context, qArgs, collection);
} else if (community != null) {
logInfo = "community_id=" + community.getID() + ",";
request.setAttribute("community", community);
// Get the collections within the community for the dropdown box
request.setAttribute("collection.array", community.getCollections());
qResults = DSQuery.doQuery(context, qArgs, community);
} else {
// Get all communities for dropdown box
// Community[] communities = Community.findAll(context);
Community[] communities =
(Community[]) ApplicationService.findAllCommunities(context).toArray();
request.setAttribute("community.array", communities);
qResults = DSQuery.doQuery(context, qArgs);
}
// now instantiate the results and put them in their buckets
for (int i = 0; i < qResults.getHitTypes().size(); i++) {
String myURI = (String) qResults.getHitURIs().get(i);
Integer myType = (Integer) qResults.getHitTypes().get(i);
// add the URI to the appropriate lists
switch (myType.intValue()) {
case Constants.ITEM:
itemCount++;
break;
case Constants.COLLECTION:
collCount++;
break;
case Constants.COMMUNITY:
commCount++;
break;
}
}
// Make objects from the URIs - make arrays, fill them out
resultsCommunities = new Community[commCount];
resultsCollections = new Collection[collCount];
resultsItems = new Item[itemCount];
for (int i = 0; i < qResults.getHitTypes().size(); i++) {
Integer myId = (Integer) qResults.getHitIds().get(i);
String myURI = (String) qResults.getHitURIs().get(i);
Integer myType = (Integer) qResults.getHitTypes().get(i);
switch (myType.intValue()) {
case Constants.ITEM:
if (myId != null) {
// resultsItems[itemCount] = Item.find(context, myId);
resultsItems[itemCount] = ApplicationService.get(context, Item.class, myId);
} else {
ObjectIdentifier oi = ObjectIdentifier.parseCanonicalForm(myURI);
resultsItems[itemCount] = (Item) oi.getObject(context);
}
if (resultsItems[itemCount] == null) {
throw new SQLException("Query \"" + query + "\" returned unresolvable item");
}
itemCount++;
break;
case Constants.COLLECTION:
if (myId != null) {
// resultsCollections[collCount] = Collection.find(context, myId);
resultsCollections[collCount] = ApplicationService.get(context, Collection.class, myId);
} else {
ObjectIdentifier oi = ObjectIdentifier.parseCanonicalForm(myURI);
resultsCollections[collCount] = (Collection) oi.getObject(context);
}
if (resultsCollections[collCount] == null) {
throw new SQLException("Query \"" + query + "\" returned unresolvable collection");
}
collCount++;
break;
case Constants.COMMUNITY:
if (myId != null) {
// resultsCommunities[commCount] = Community.find(context, myId);
resultsCommunities[commCount] = ApplicationService.get(context, Community.class, myId);
} else {
ObjectIdentifier oi = ObjectIdentifier.parseCanonicalForm(myURI);
resultsCommunities[commCount] = (Community) oi.getObject(context);
}
if (resultsCommunities[commCount] == null) {
throw new SQLException("Query \"" + query + "\" returned unresolvable community");
}
commCount++;
break;
}
}
// Log
log.info(
LogManager.getHeader(
context,
"search",
logInfo
+ "query=\""
+ query
+ "\",results=("
+ resultsCommunities.length
+ ","
+ resultsCollections.length
+ ","
+ resultsItems.length
+ ")"));
// Pass in some page qualities
// total number of pages
int pageTotal = 1 + ((qResults.getHitCount() - 1) / qResults.getPageSize());
// current page being displayed
int pageCurrent = 1 + (qResults.getStart() / qResults.getPageSize());
// pageLast = min(pageCurrent+9,pageTotal)
int pageLast = ((pageCurrent + 9) > pageTotal) ? pageTotal : (pageCurrent + 9);
// pageFirst = max(1,pageCurrent-9)
int pageFirst = ((pageCurrent - 9) > 1) ? (pageCurrent - 9) : 1;
// Pass the results to the display JSP
request.setAttribute("items", resultsItems);
request.setAttribute("communities", resultsCommunities);
request.setAttribute("collections", resultsCollections);
request.setAttribute("pagetotal", new Integer(pageTotal));
request.setAttribute("pagecurrent", new Integer(pageCurrent));
request.setAttribute("pagelast", new Integer(pageLast));
request.setAttribute("pagefirst", new Integer(pageFirst));
request.setAttribute("queryresults", qResults);
// And the original query string
request.setAttribute("query", query);
request.setAttribute("order", qArgs.getSortOrder());
request.setAttribute("sortedBy", sortOption);
if ((fromAdvanced != null) && (qResults.getHitCount() == 0)) {
// send back to advanced form if no results
Community[] communities =
(Community[]) ApplicationService.findAllCommunities(context).toArray();
// Community[] communities = Community.findAll(context);
request.setAttribute("communities", communities);
request.setAttribute("no_results", "yes");
queryHash = qArgs.buildQueryHash(request);
Iterator i = queryHash.keySet().iterator();
while (i.hasNext()) {
String key = (String) i.next();
String value = (String) queryHash.get(key);
request.setAttribute(key, value);
}
JSPManager.showJSP(request, response, "/search/advanced.jsp");
} else {
JSPManager.showJSP(request, response, "/search/results.jsp");
}
}
