Class ResourceLimits

java.lang.Object

opennlp.tools.util.ResourceLimits

public final class ResourceLimits
extends Object

Shared upper bounds for counts read from user-supplied resources, so a crafted file cannot force an outsized allocation before validation completes.

Since:

3.0.0

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MAX_ENTRIES	Upper bound on count fields and resource sizes that drive allocations (matrix dimensions, lexicon entries, model outcome counts, and similar).
static final String	MAX_ENTRIES_PROPERTY	System property for overriding MAX_ENTRIES.
static final int	MAX_MATRIX_CELLS	Upper bound on the cell count of a two-dimensional cost table, whose entries are far smaller than the record-sized entries MAX_ENTRIES bounds.
static final String	MAX_MATRIX_CELLS_PROPERTY	System property for overriding MAX_MATRIX_CELLS.

Method Summary

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

MAX_ENTRIES_PROPERTY

public static final String MAX_ENTRIES_PROPERTY

System property for overriding MAX_ENTRIES. Set at JVM startup, e.g. -DOPENNLP_MAX_ENTRIES=5000000. Falls back to 10_000_000 if absent or invalid.

See Also:

• Constant Field Values

MAX_ENTRIES

public static final int MAX_ENTRIES

Upper bound on count fields and resource sizes that drive allocations (matrix dimensions, lexicon entries, model outcome counts, and similar). Configurable via MAX_ENTRIES_PROPERTY.

MAX_MATRIX_CELLS_PROPERTY

public static final String MAX_MATRIX_CELLS_PROPERTY

System property for overriding MAX_MATRIX_CELLS. Set at JVM startup, e.g. -Dopennlp.max.matrix.cells=20000000. Falls back to 134_217_728 if absent or invalid.

See Also:

• Constant Field Values

MAX_MATRIX_CELLS

public static final int MAX_MATRIX_CELLS

Upper bound on the cell count of a two-dimensional cost table, whose entries are far smaller than the record-sized entries MAX_ENTRIES bounds. The default of 2^27 cells caps a 16-bit cost matrix at 256 MiB, which admits every published MeCab-format distribution (mecab-ko-dic 2.1.1 alone declares 3822 x 2693, above MAX_ENTRIES) while still refusing the roughly 4 GiB allocation a crafted 46340 46340 header would force. Configurable via MAX_MATRIX_CELLS_PROPERTY.