Merge pull request #137 from imagej/log-level-in-ij2-options

ctrueden · web-flow · commit 3fbc4ad51b0e · 2017-01-01T10:24:39.000-06:00
ImageJ2Options: add log level selection
diff --git a/src/main/java/net/imagej/legacy/ImageJ2Options.java b/src/main/java/net/imagej/legacy/ImageJ2Options.java
@@ -75,15 +75,22 @@ public class ImageJ2Options extends OptionsPlugin implements Interactive {
 	 * This system leverages the <a href="http://imagej.net/SCIFIO">SCIFIO</a>
 	 * library to open image files.
 	 */
-	@Parameter(
-		label = "Use SCIFIO when opening files (BETA!)",
-		description = "<html>Whether to use ImageJ2's file I/O mechanism when "
-			+ "opening files.<br>Image files will be opened using the SCIFIO library "
-			+ "(SCientific Image<br>Format Input and Output), which provides truly "
-			+ "extensible support for<br>reading and writing image file formats.",
+	@Parameter(label = "Use SCIFIO when opening files (BETA!)",
+		description = "<html>Whether to use ImageJ2's file I/O mechanism when " +
+			"opening files.<br>Image files will be opened using the SCIFIO library " +
+			"(SCientific Image<br>Format Input and Output), which provides truly " +
+			"extensible support for<br>reading and writing image file formats.",
 		callback = "run")
 	private boolean sciJavaIO = false;
 
+	@Parameter(label = "SciJava log level",
+		description = "<html>Log level for SciJava",
+		initializer = "initializeLogLevel", //
+		callback = "setLogLevel", //
+		choices = { "ERROR", "WARN", "INFO", "DEBUG", "TRACE" }, //
+		persist = false)
+	private String logLevel;
+
 	@Parameter(label = "What is ImageJ2?", persist = false, callback = "help")
 	private Button help;
 
@@ -201,4 +208,56 @@ private void help() {
 			System.err.println(message);
 		}
 	}
+
+	@SuppressWarnings("unused")
+	private void initializeLogLevel() {
+		logLevel = parseLogLevel(log.getLevel());
+	}
+
+	@SuppressWarnings("unused")
+	private void setLogLevel() {
+		log.setLevel(parseLogLevel(logLevel));
+	}
+
+	/**
+	 * Parses a log level from a {@code String}.
+	 * 
+	 * @param level
+	 * @return the {@code int} associated with the level
+	 */
+	private int parseLogLevel(final String level) {
+		switch (level) {
+			case "NONE": return LogService.NONE;
+			case "ERROR": return LogService.ERROR;
+			case "WARN": return LogService.WARN;
+			case "INFO": return LogService.INFO;
+			case "DEBUG": return LogService.DEBUG;
+			case "TRACE": return LogService.TRACE;
+		}
+
+		return LogService.WARN;
+	}
+
+	/**
+	 * Parses a log level from an {@code int}.
+	 * 
+	 * @param level
+	 * @return the {@code String} associated with the level
+	 */
+	private String parseLogLevel(int level) {
+		if (level == LogService.NONE)
+			return "NONE";
+		if (level == LogService.ERROR)
+			return "ERROR";
+		if (level == LogService.WARN)
+			return "WARN";
+		if (level == LogService.INFO)
+			return "INFO";
+		if (level == LogService.DEBUG)
+			return "DEBUG";
+		if (level == LogService.TRACE)
+			return "TRACE";
+
+		return "" + level;
+	}
 }
