HBASE-1859 Misc shell fixes patch

git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@817947 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -43,6 +43,7 @@ Release 0.21.0 - Unreleased
    HBASE-1857  WrongRegionException when setting region online after .META.
                split (Cosmin Lehane via Stack)
    HBASE-1809  NPE thrown in BoundedRangeFileInputStream
+   HBASE-1859  Misc shell fixes patch (Kyle Oba via Stack)
 
   IMPROVEMENTS
    HBASE-1760  Cleanup TODOs in HTable

bin/Formatter.rb

@@ -2,12 +2,20 @@
 module Formatter
   # Base abstract class for results formatting.
   class Formatter
+    def is_kernel?(obj)
+      obj.kind_of?(Module) and obj.name == "Kernel"
+    end
+
     # Takes an output stream and a print width.
-    def initialize(o, w = 100)
+    def initialize(opts={})
-      raise TypeError.new("Type %s of parameter %s is not IO" % [o.class, o]) \
+      defaults = {:output_stream => Kernel, :format_width => 100}
-        unless o.instance_of? IO
+      options = defaults.merge(opts)
-      @out = o
+
-      @maxWidth = w
+      @out = options[:output_stream]
+      raise TypeError.new("Type %s of parameter %s is not IO" % [@out.class, @out]) \
+        unless @out.instance_of? IO or is_kernel?(@out)
+
+      @maxWidth = options[:format_width]
       @rowCount = 0
     end
 
@@ -27,7 +35,7 @@ module Formatter
       end
       if args.class == String
         output(@maxWidth, args)
-        puts
+        @out.puts
         return
       end
       # TODO: Look at the type.  Is it RowResult?
@@ -35,7 +43,7 @@ module Formatter
         splits = split(@maxWidth, dump(args[0]))
         for l in splits
           output(@maxWidth, l)
-          puts
+          @out.puts
         end
       elsif args.length == 2
         col1width = (not widths or widths.length == 0) ? @maxWidth / 4 : @maxWidth * widths[0] / 100
@@ -57,7 +65,7 @@ module Formatter
           @out.print(" ")
           output(col2width, splits2[index])
           index += 1
-          puts
+          @out.puts
         end
       else
         # Print a space to set off multi-column rows

bin/hirb.rb

@@ -71,7 +71,8 @@ for arg in found
   ARGV.delete(arg)
 end
 # Presume console format.
-@formatter = Formatter::Console.new(STDOUT, format_width)
+# Formatter takes an :output_stream parameter, if you don't want STDOUT.
+@formatter = Formatter::Console.new(:format_width => format_width)
 # TODO, etc.  @formatter = Formatter::XHTML.new(STDOUT)
 
 # Setup the HBase module.  Create a configuration.
@@ -100,9 +101,6 @@ promoteConstants(org.apache.hadoop.hbase.HColumnDescriptor.constants)
 promoteConstants(org.apache.hadoop.hbase.HTableDescriptor.constants)
 promoteConstants(HBase.constants)
 
-# If script2run, try running it.  Will go on to run the shell unless
-# script calls 'exit' or 'exit 0' or 'exit errcode'.
-load(script2run) if script2run
 
 # Start of the hbase shell commands.
 
@@ -428,6 +426,12 @@ def split(tableNameOrRegionName)
   admin().split(tableNameOrRegionName)
 end
 
+
+# If script2run, try running it.  Will go on to run the shell unless
+# script calls 'exit' or 'exit 0' or 'exit errcode'.
+load(script2run) if script2run
+
+
 # Output a banner message that tells users where to go for help
 puts <<HERE
 HBase Shell; enter 'help<RETURN>' for list of supported commands.