Benedikt Ritter created IMAGING-159:
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Summary: There should be a Parameters class
Key: IMAGING-159
URL: https://issues.apache.org/jira/browse/IMAGING-159
Project: Commons Imaging
Issue Type: Improvement
Components: imaging.*
Reporter: Benedikt Ritter
Fix For: Patch Needed
Currently options for image I/O are defined as Maps. The leads to the problem
that our code has to validate parameter types when they are used:
{code:java}
final Object value = params.get(PARAM_KEY_COMPRESSION);
if (value != null) {
if (!(value instanceof Number)) {
throw new ImageWriteException(
"Invalid compression parameter, must be numeric: "
+ value);
}
compression = ((Number) value).intValue();
}
{code}
This can be simplified if we define a Parameters class that provides additional
methods like {{public int getInt(String key)}}. The implementation could then
look up the value from the map through an exception if it is null or not a
number.
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