dead code removed from RubyRedis

[redis.git] / client-libraries / ruby_2 / rubyredis.rb

diff --git a/client-libraries/ruby_2/rubyredis.rb b/client-libraries/ruby_2/rubyredis.rb
index 958210dcd58a77bda86e47f99d1afe31d75c2f23..620bab179a52563ea61c4e14c6796e3a91a482f3 100644 (file)
--- a/client-libraries/ruby_2/rubyredis.rb
+++ b/client-libraries/ruby_2/rubyredis.rb
@@ -14,12 +14,37 @@ class RedisClient
         "echo"=>true, "getset"=>true, "smove"=>true
     }
 
+    ConvertToBool = lambda{|r| r == 0 ? false : r}
+
+    ReplyProcessor = {
+        "exists" => ConvertToBool,
+        "sismember"=> ConvertToBool,
+        "sadd"=> ConvertToBool,
+        "srem"=> ConvertToBool,
+        "smove"=> ConvertToBool,
+        "move"=> ConvertToBool,
+        "setnx"=> ConvertToBool,
+        "del"=> ConvertToBool,
+        "renamenx"=> ConvertToBool,
+        "expire"=> ConvertToBool,
+        "keys" => lambda{|r| r.split(" ")},
+        "info" => lambda{|r| 
+            info = {}
+            r.each_line {|kv|
+                k,v = kv.split(':', 2)
+                k,v = k.chomp, v = v.chomp
+                info[k.to_sym] = v
+            }
+            info
+        }
+    }
+
     def initialize(opts={})
         opts = {:host => 'localhost', :port => '6379', :db => 0}.merge(opts)
         @host = opts[:host]
         @port = opts[:port]
         @db = opts[:db]
-        @sock = connect_to_server
+        connect_to_server
     end
 
     def to_s
@@ -27,7 +52,8 @@ class RedisClient
     end
 
     def connect_to_server
-        TCPSocket.new(@host, @port, 0)
+        @sock = TCPSocket.new(@host, @port, 0)
+        call_command(["select",@db]) if @db != 0
     end
 
     def method_missing(*argv)
@@ -35,19 +61,48 @@ class RedisClient
     end
 
     def call_command(argv)
+        # this wrapper to raw_call_command handle reconnection on socket
+        # error. We try to reconnect just one time, otherwise let the error
+        # araise.
+        begin
+            raw_call_command(argv)
+        rescue Errno::ECONNRESET
+            @sock.close
+            connect_to_server
+            raw_call_command(argv)
+        end
+    end
+
+    def raw_call_command(argv)
         bulk = nil
         argv[0] = argv[0].to_s.downcase
         if BulkCommands[argv[0]]
-            bulk = argv[-1]
+            bulk = argv[-1].to_s
             argv[-1] = bulk.length
         end
         @sock.write(argv.join(" ")+"\r\n")
         @sock.write(bulk+"\r\n") if bulk
-        read_reply
+
+        # Post process the reply if needed
+        processor = ReplyProcessor[argv[0]]
+        processor ? processor.call(read_reply) : read_reply
+    end
+
+    def select(*args)
+        raise "SELECT not allowed, use the :db option when creating the object"
+    end
+
+    def [](key)
+        get(key)
+    end
+
+    def []=(key,value)
+        set(key,value)
     end
 
     def read_reply
         line = @sock.gets
+        raise Errno::ECONNRESET,"Connection lost" if !line
         case line[0..0]
         when "-"
             raise line.strip