[IMAGING-159] There should be a Parameters class

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0-alpha2
• Fix Version/s: 1.0-alpha3
• Component/s: imaging.*
• Labels: github
• Assignee: Bruno P. Kinoshita
• Reporter: Benedikt Ritter
• Created: 10/Jan/15 13:41
• Updated: 19/May/22 04:29
• Resolved: 16/Jan/22 03:29

Description

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:

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();
}

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.

Issue Links

• fixes: IMAGING-296 Remove Redundant Collection operation