Package org.geotools.referencing
Class Console
Object
AbstractConsole
Console
- All Implemented Interfaces:
Runnable
A console for executing CRS operations from the command line. Instructions are read from the standard input stream and results are sent to the standard output stream. Instructions
include:
SET name = wkt | Set the specified name as a shortcut for the specified Well Know Text (wkt). This WKT can contains other shortcuts defined previously. |
transform = wkt |
Set explicitly a math transform to use for
coordinate transformations. This instruction is a more direct alternative to the usage of
source crs and target crs instruction. |
source crs = wkt | Set the source coordinate reference system to the specified object. This object can be specified as a Well Know Text (wkt) or as a shortcut previously set. |
target crs = wkt | Set the target coordinate reference system to the specified object. This object can be specified as a Well Know Text (wkt) or as a shortcut previously set. Once both source and target CRS are specified a math transform from source to target CRS is automatically infered. |
source pt = coord | Transforms the specified coordinates from source CRS to target CRS and prints the result. |
target pt = coord | Inverse transforms the specified coordinates from target CRS to source CRS and prints the result. |
test tolerance = vector |
Set the maximum difference between the transformed source point and the
target point. Once this value is set, every occurence of the target pt instruction
will trig this comparaison. If a greater difference is found, an exception is thrown or a
message is printed to the error stream. |
print set |
Prints the set of shortcuts defined in previous calls to SET instruction. |
print crs | Prints the source and target coordinate reference system math transform and its inverse as Well Know Text (wkt). |
print pts | Prints the source and target points, their transformed points, and the distance between them. |
exit | Quit the console. |
- Since:
- 2.1
- Author:
- Martin Desruisseaux (IRD)
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Field Summary
Fields inherited from class AbstractConsole
err, in, lineSeparator, out, parser
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Constructor Summary
ConstructorsConstructorDescriptionConsole()
Creates a new console instance using standard input stream, standard output stream, error output stream and the system default line separator.Creates a new console instance using the specified input stream. -
Method Summary
Modifier and TypeMethodDescriptionprotected void
Execute the specified instruction.static void
Run the console from the command line.protected void
reportError
(Exception exception) Print an exception message to the standard error stream.protected void
test()
Invoked automatically when thetarget pt
instruction were executed and atest tolerance
were previously set.Methods inherited from class AbstractConsole
addDefinition, executeAll, getPrompt, loadDefinitions, parseObject, printDefinitions, run, setPrompt, stop
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Constructor Details
-
Console
public Console()Creates a new console instance using standard input stream, standard output stream, error output stream and the system default line separator. -
Console
Creates a new console instance using the specified input stream.- Parameters:
in
- The input stream.
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Method Details
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main
Run the console from the command line. Before to process all instructions from the standard input stream, this method first process the following optional command-line arguments:-load
<filename>Load a definition file before to run instructions from the standard input stream. -encoding
<code>Set the character encoding. -locale
<language>Set the language for the output (e.g. "fr" for French). - Parameters:
args
- the command line arguments
-
execute
protected void execute(String instruction) throws IOException, ParseException, FactoryException, TransformException Execute the specified instruction.- Specified by:
execute
in classAbstractConsole
- Parameters:
instruction
- The instruction to execute.- Throws:
IOException
- if an I/O operation failed while writting to the output stream.ParseException
- if a line can't be parsed.FactoryException
- If a transform can't be created.TransformException
- if a transform failed.
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test
Invoked automatically when thetarget pt
instruction were executed and atest tolerance
were previously set. The default implementation compares the transformed source point with the expected target point. If a mismatch greater than the tolerance error is found, an exception is thrown. Subclasses may overrides this method in order to performs more tests.- Throws:
TransformException
- if the source point can't be transformed, or a mistmatch is found.MismatchedDimensionException
- if the transformed source point doesn't have the expected dimension.
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reportError
Print an exception message to the standard error stream. The error message includes the line number, and the column where the failure occured in the exception is an instance ofParseException
.- Overrides:
reportError
in classAbstractConsole
- Parameters:
exception
- The exception to report.
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