Class NTv2GridShiftFactory
Object
AbstractFactory
ReferencingFactory
NTv2GridShiftFactory
- All Implemented Interfaces:
Factory
,BufferedFactory
,Factory
,RegistrableFactory
Loads and caches NTv2 grid files. Thisthat incorporates a soft cache mechanism to keep grids in memory when first
loaded. It also checks NTv2 grid file format in
#isNTv2Grid(String)
method.- Author:
- Oscar Fonts
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Field Summary
FieldsFields inherited from class AbstractFactory
hints, MAXIMUM_PRIORITY, MINIMUM_PRIORITY, NORMAL_PRIORITY, priority
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Constructor Summary
ConstructorsConstructorDescriptionConstructs a factory with the default priority.NTv2GridShiftFactory
(int priority) Constructs an instance using the specified priority level. -
Method Summary
Modifier and TypeMethodDescriptionGridShiftFile
createNTv2Grid
(URL gridLocation) Creates a NTv2 Grid.boolean
isNTv2Grid
(URL location) Performs a NTv2 grid file lookup given its name, and checks for file format correctness.protected boolean
isNTv2GridFileValid
(URL url) Checks if a given resource is a valid NTv2 file without fully loading it.Methods inherited from class ReferencingFactory
ensureNonNull, getVendor
Methods inherited from class AbstractFactory
addImplementationHints, equals, getImplementationHints, getPriority, hashCode, onDeregistration, onRegistration, toString
Methods inherited from interface Factory
getImplementationHints
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Field Details
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LOGGER
Logger.
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Constructor Details
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NTv2GridShiftFactory
public NTv2GridShiftFactory()Constructs a factory with the default priority. -
NTv2GridShiftFactory
public NTv2GridShiftFactory(int priority) Constructs an instance using the specified priority level.- Parameters:
priority
- The priority for this factory, as a number betweenMINIMUM_PRIORITY
andMAXIMUM_PRIORITY
inclusive.
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Method Details
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isNTv2Grid
Performs a NTv2 grid file lookup given its name, and checks for file format correctness.- Parameters:
location
- The NTv2 grid file location- Returns:
true
if file exists and is valid,false
otherwise
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createNTv2Grid
Creates a NTv2 Grid.- Parameters:
gridLocation
- The NTv2 grid file location- Returns:
- the grid
- Throws:
FactoryException
- if grid cannot be created
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isNTv2GridFileValid
Checks if a given resource is a valid NTv2 file without fully loading it.If file is not valid, the cause is logged at
warning level
.- Parameters:
url
- the NTv2 file absolute path- Returns:
- true if file has NTv2 format, false otherwise
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