added option to reverse-sort YaCy tables (internal API change only)

htroot/Table_YMark_p.java

@@ -243,7 +243,7 @@ public class Table_YMark_p {
                     	final String tagsString = YMarkUtil.cleanTagsString(post.get(YMarkEntry.BOOKMARK.TAGS.key()));
                     	mapIterator = sb.tables.bookmarks.getBookmarksByTag(bmk_user, tagsString);
                     } else {
-                    	mapIterator = sb.tables.orderByPK(sb.tables.iterator(table, matcher), maxcount).iterator();
+                    	mapIterator = sb.tables.orderByPK(sb.tables.iterator(table, matcher), maxcount, false).iterator();
                     }
 
                     Tables.Row row;

htroot/Tables_p.java

@@ -160,7 +160,7 @@ public class Tables_p {
                 count = 0;
                 try {
                     final Iterator<Tables.Row> plainIterator = sb.tables.iterator(table, matcher);
-                    final Iterator<Tables.Row> mapIterator = sb.tables.orderByPK(plainIterator, maxcount).iterator();
+                    final Iterator<Tables.Row> mapIterator = sb.tables.orderByPK(plainIterator, maxcount, false).iterator();
                     Tables.Row row;
                     boolean dark = true;
                     byte[] cell;

htroot/api/table_p.java

@@ -155,7 +155,7 @@ public class table_p {
         int count = 0;
         try {
             final Iterator<Tables.Row> plainIterator = sb.tables.iterator(table, matcher);
-            final Iterator<Tables.Row> mapIterator = sb.tables.orderByPK(plainIterator, maxcount).iterator();
+            final Iterator<Tables.Row> mapIterator = sb.tables.orderByPK(plainIterator, maxcount, false).iterator();
             Tables.Row trow;
             boolean dark = true;
             String cellName, cellValue;

source/net/yacy/crawler/CrawlSwitchboard.java

@@ -676,12 +676,10 @@ public final class CrawlSwitchboard {
         try {
             ret = new MapHeap(file, Word.commonHashLength, NaturalOrder.naturalOrder, 1024 * 64, 500, ' ');
         } catch (final IOException e ) {
-            ConcurrentLog.logException(e);
             ConcurrentLog.logException(e);
             FileUtils.deletedelete(file);
             try {
-                ret =
-                    new MapHeap(file, Word.commonHashLength, NaturalOrder.naturalOrder, 1024 * 64, 500, ' ');
+                ret = new MapHeap(file, Word.commonHashLength, NaturalOrder.naturalOrder, 1024 * 64, 500, ' ');
             } catch (final IOException e1 ) {
                 ConcurrentLog.logException(e1);
                 ret = null;

source/net/yacy/kelondro/blob/Tables.java

@@ -454,14 +454,14 @@ public class Tables implements Iterable<String> {
         return new RowIterator(table, wherePattern);
     }
 
-    public Collection<Row> orderByPK(final Iterator<Row> rowIterator, int maxcount) {
+    public Collection<Row> orderByPK(final Iterator<Row> rowIterator, int maxcount, boolean reverse) {
         final TreeMap<String, Row> sortTree = new TreeMap<String, Row>();
         Row row;
         while ((maxcount < 0 || maxcount-- > 0) && rowIterator.hasNext()) {
             row = rowIterator.next();
             sortTree.put(UTF8.String(row.pk), row);
         }
-        return sortTree.values();
+        return reverse ? sortTree.descendingMap().values() : sortTree.values();
     }
 
     public Collection<Row> orderBy(final Iterator<Row> rowIterator, int maxcount, final String sortColumn) {