AbstractLogService: refactor duplicate code

Author: ctrueden

src/main/java/org/scijava/log/AbstractLogService.java

@@ -46,7 +46,7 @@ public abstract class AbstractLogService extends AbstractService implements
 	LogService
 {
 
-	private int currentLevel = System.getenv("DEBUG") == null ? INFO : DEBUG;
+	private int currentLevel = levelFromEnvironment();
 
 	private final Map<String, Integer> classAndPackageLevels =
 		new HashMap<>();
@@ -77,10 +77,8 @@ public AbstractLogService() {
 		final int level = level(logProp);
 		if (level >= 0) setLevel(level);
 
-		if (getLevel() == 0) {
-			// use the default, which is INFO unless the DEBUG env. variable is set
-			setLevel(System.getenv("DEBUG") == null ? INFO : DEBUG);
-		}
+		if (getLevel() == 0)
+			setLevel(levelFromEnvironment());
 
 		// populate custom class- and package-specific log level properties
 		final String logLevelPrefix = LOG_LEVEL_PROPERTY + ":";
@@ -297,4 +295,9 @@ private String parentPackage(final String classOrPackageName) {
 		return classOrPackageName.substring(0, dot);
 	}
 
+	private int levelFromEnvironment() {
+		// use the default, which is INFO unless the DEBUG env. variable is set
+		return System.getenv("DEBUG") == null ? INFO : DEBUG;
+	}
+
 }