[MRESOLVER-42] Use pre-compiled pattern in DefaultArtifact constructor

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Maven Artifact Resolver 1.0.3, Maven Artifact Resolver 1.1.0
• Fix Version/s: 1.3.0
• Component/s: Resolver
• Assignee: Michael Osipov
• Reporter: Robert Varga
• Created: 11/Feb/18 23:05
• Updated: 05/Mar/18 19:37
• Resolved: 05/Mar/18 19:37

Description

DefaultArtifact(String) always compiles the coordinate matching pattern. This leads to sub-optimal performance when this constructor is used.

The pattern being matched should be a constant, so that we instantiate only a matcher, which is fast compared to Pattern.compile(String).