added a (badly formatted) delete button for process scheduler entries

htroot/Table_API_p.html

@@ -171,8 +171,16 @@ To see a list of all APIs, please visit the <a href="http://www.yacy-websuche.de
       <input type="hidden" name="scheduleeventaction" id="scheduleeventaction" value="false" />
       <input type="hidden" name="current_pk" id="current_pk" value="" />
       <input type="hidden" name="num" value="#[num]#" />
-      <input type="submit" name="execrows" value="Execute Selected Actions" />
-      <input type="submit" name="deleterows" value="Delete Selected Actions" />
+      &nbsp;<input type="submit" name="execrows" value="Execute Selected Actions" />&nbsp;&nbsp;&nbsp;
+      <input type="submit" name="deleterows" value="Delete Selected Actions" />&nbsp;&nbsp;&nbsp;
+      <table><tr><td><input type="submit" name="deleteold" value="Delete all Actions which had been created before " /></td><td><select name="deleteoldtime">
+        <option value="1">1 day</option><option value="2">2 days</option><option value="3">3 days</option>
+        <option value="4">4 days</option><option value="5">5 days</option><option value="6">6 days</option>
+        <option value="7">1 week</option><option value="14">2 weeks</option><option value="21">3 weeks</option>
+        <option value="30">1 month</option><option value="60" selected="selected">2 months</option><option value="90">3 months</option>
+        <option value="180">6 months</option><option value="270">9 months</option>
+        <option value="365">1 year</option><option value="730">2 years</option>
+      </select></td></tr></table>
       </p>
       
     </form>

htroot/Table_API_p.java

@@ -33,6 +33,7 @@ import net.yacy.cora.protocol.Domains;
 import net.yacy.cora.protocol.RequestHeader;
 import net.yacy.data.WorkTables;
 import net.yacy.kelondro.blob.Tables;
+import net.yacy.kelondro.blob.Tables.Row;
 import net.yacy.kelondro.logging.Log;
 import net.yacy.search.Switchboard;
 import net.yacy.search.SwitchboardConstants;
@@ -156,6 +157,28 @@ public class Table_API_p {
                 }
             }
         }
+        
+        if (post != null && !post.get("deleteold", "").isEmpty()) {
+            int days = post.getInt("deleteoldtime", 365);
+            try {
+                Iterator<Row> ri = sb.tables.iterator(WorkTables.TABLE_API_NAME);
+                Row row;
+                Date now = new Date();
+                Date limit = new Date(now.getTime() - 1000L * 60L * 60L * 24L * days);
+                List<byte[]> pkl = new ArrayList<byte[]>();
+                while (ri.hasNext()) {
+                    row = ri.next();
+                    Date d = row.get(WorkTables.TABLE_API_COL_DATE_RECORDING, now);
+                    if (d.before(limit)) {
+                        pkl.add(row.getPK());
+                    }
+                }
+                for (byte[] pk: pkl) {
+                    sb.tables.delete(WorkTables.TABLE_API_NAME, pk);
+                }
+            } catch (IOException e1) {
+            }
+        }
 
         if (post != null && !post.get("execrows", "").isEmpty()) {
             // create a time-ordered list of events to execute