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---

Author: [log in to unmask]
Date: Fri Feb  5 16:23:30 2016
New Revision: 4170

Log:
Add help option to EVIO conversion tool.

Modified:
    java/trunk/evio/src/main/java/org/hps/evio/EvioToLcio.java

Modified: java/trunk/evio/src/main/java/org/hps/evio/EvioToLcio.java
 =============================================================================
--- java/trunk/evio/src/main/java/org/hps/evio/EvioToLcio.java	(original)
+++ java/trunk/evio/src/main/java/org/hps/evio/EvioToLcio.java	Fri Feb  5 16:23:30 2016
@@ -71,7 +71,7 @@
  * @author Jeremy McCormick <[log in to unmask]>
  * @author Sho Uemura <[log in to unmask]>
  */
-public class EvioToLcio {
+public final class EvioToLcio {
 
     /**
      * The default steering resource, which basically does nothing except print event numbers.
@@ -113,6 +113,7 @@
      */
     private static Options OPTIONS = new Options();
     static {
+        OPTIONS.addOption(new Option("h", false, "print help and exit"));
         OPTIONS.addOption(new Option("d", true, "detector name (required)"));
         OPTIONS.getOption("d").setRequired(true);
         OPTIONS.addOption(new Option("f", true, "text file containing a list of EVIO files"));
@@ -251,10 +252,11 @@
     }
 
     public void parse(String[] args) {
-        // Parse the command line options.
+        
         if (args.length == 0) {
             this.printUsage();
         }
+        
         final CommandLineParser parser = new PosixParser();
         CommandLine cl = null;
         try {
@@ -262,8 +264,13 @@
         } catch (final ParseException e) {
             throw new RuntimeException("Problem parsing command line options.", e);
         }
+        
+        if (cl.hasOption("h")) {
+            this.printUsage();
+        }
 
         // Set the log level.
+        // TODO: Remove this argument; use java logging prop instead.
         if (cl.hasOption("L")) {
             final Level level = Level.parse(cl.getOptionValue("L").toUpperCase());