/**
* 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());
}
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));
// }
// }
}
/**
* 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;
}
// 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);
}
}
/**
* 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;
}
/**
* 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());
}
/**
* 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();
}
}
