* cleaned up code
* added unit test code
* migrated ranking RCI computation to kelondroFlex and kelondroCollectionIndex
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is corrupted. The cause is, that the deleted-records-chain has wrong entries,
and one of the pointers in that chain points to a place behind the file end.
This causes an IndexOutOfBoundsException within an IO operation.
I currently don't know the reason that the deleted-records-chain is
corrupted, but the error can be catched. If this now happens with the
assortment database, the database is deleted.
See also:
http://www.yacy-forum.de/viewtopic.php?p=24586#24586
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* adopted all code to use the declaration form of kelondroRow
* fixed a bug in kelondroRow which caused wrong parsing of encoding type
* the bug caused bad database behaviour in new indexCollection data structure.
because of this bug, all test databases are now already void. A new database is created
* the kelondroFlexTable and indexCollection data structures now store a declaration of the row definition
into a properties file along the database files.
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for indexing, the plasmaWordIndex.
The new data structure is ready-to-use, but currently disabled.
It can be activated by setting the static
plasmaWordIndex.useCollectionIndex
to true. This shall be done for testing purpose.
The new index is stored to
DATA/INDEX/PUBLIC/TEXT
The directory PLASMA shall be used only for crawler in the future.
Attention: during testing the data structure in INDEX may change,
and created indexes with the new data structure may get useless.
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this is the new database structure that is supposed to replace the
plasmaAssortmentCluster AND the plasmaWordIndexFileCluster
The new structure is not yet active and needs to be integrated into
plasmaWordIndex. This has some migration constraints that are not yet
completely solved.
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* replaced indexTreeMapContainer by indexRowSetContainer
* deleted indexTreeMapContainer and abstract class
This is another step to the new database structure
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to store the index entry. This is another step to move to the new database structure.
A side effect of this change is, that index storage uses much less RAM space,
which affects the index RAM cache.
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indexContainers from RAM must be cloned explicitely to prevent
side-effects on stored indexContainer objects in Cache
* changed behaviour of urlReference deletion from indexContainers:
deletion does not user retrieval of all Elements from the assortments
* added textual configuration of kelondroRow and kelondroColumn definition
* update of kelondroRow usage in yacyNews
* modified kelondroAttrSeq to use modified kelondroColumn parser
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an iteration of key elements in kelondroTree databases is no longer supported.
this is now replaced by an iteration of kelondroRow.Entry objects from the database
Iteration of keys from the database was mostly followed by retrieval of the row
from the database, whcih caused unnecessary database load.
The index selection was also redesigned to use the new row iteration methods.
This affects many funktions, most important is the DHT selection routine which is now much faster.
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* mainly for the transition to the new indexing database structure
* a bugfix for an endless loop inside kelondroTree iteration
* a bugfix for bulk read inside a kelondroTree iteration; the bug caused that some elements had been iterated twice
* very strong speed enhancement for url/domain extraction
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This shall be seen as an experiment to exclude all cases where
there could be a DNS lookup during URL comparisment.
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this was done because testing showed that cache-delete operations
slowed down record access most, even more that actual IO operations.
Cache-delete operations appeared when entries were shifted from low-priority
positions to high-priority positions. During a fill of x entries to a database,
x/2 delete situation happen which caused two or more delete operations.
removing the cache control means that these delete operations are not
necessary any more, but it is more difficult to decide which cache elements
shall be removed in case that the cache is full. There is not yet a stable
solution for this case, but the advantage of a faster cache is more important
that the flush problem.
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