mapreduce - cannot found "KeyValueInputFormat" in Hadoop -


I'm a newbie for headop, but have read the Yahoo Tutorial on it and have already written some maps, improve jobs. All of my previous works used TextInputFormat but now I have to change it to KeyValueInputFormat. The problem is that KeyValueInputFormat.class can not get wasop in 0.20.2?

I am attaching my code below (this is only an example of counting, only input format is changing) 

  package org.myorg; Import java.io.IOException; Import java.util. *; Import org.apache.hadoop.fs.Path; Import org.apache.hadoop.conf *; Import org.apache.hadoop.io *; Import org.apache.hadoop.mapred *; Import org.apache.hadoop.util *; Public class wordcount {The public static class map is expanding MapReduceBase's applicable mapper & lt; LongwayText, Text, Text, Intubiate & gt; {Private Final Static IntWritable A = New IntWritable (1); Private text word = new text (); Public Zero map throws IOException (long-term appropriate key, text value, output calculator & lt; text, intWritable & gt; output, reporter reporter) {string line = value. Tutorial (); StringTokenizer Tokenizer = New StringTokenizer (line); While (tokenizer.hasMoreTokens ()) {word.set (tokenizer.nextToken ()); Output coat (word, one); }}} Expand declines in public static class MapReduceBase applies Reducer & lt; Text, IntWritable, Text, IntWritable & gt; {Public Zero Low (Text Key, Iterator & quot; IntWritable> Price, OutputClalter & lt; Text, IntWritable> Output, Reporter Reporter) throws IOException {int sum = 0; While (values.hasNext ()) {sum + = values.next (). Get (); } Output.collect (key, new IntWritable (sum)); }} Public static zero principal (string [] args) Exception {throws JobConf conf = new JobConf (WordCount.class); Conf.setJobName ("wordcount"); Conf.setOutputKeyClass (Text.class); Conf.setOutputValueClass (IntWritable.class); Conf.setMapperClass (Map.class); Conf.setCombinerClass (Reduce.class); Conf.setReducerClass (Reduce.class); Conf.setInputFormat (keyValueInputFormat.class); // Modified input format conf.setOutputFormat (TextOutputFormat.class); FileInputFormat.setInputPaths (conf, new path (args [0])); FileOutputFormat.setOutputPath (conf, new path (args [1])); JobClient.runJob (conf); }}    
 
 
 contains the keyValueTextInputFormat org.apache.hadoop.mapreduce.lib.input.  
 Some old tutorials are based on older versions of the Hadoop API. I suggest you go through some new tutorials.  
 This is when I will go to the key. Mapreduce.lib.input; Import java.io.IOException; Import org.apache.hadoop.fs.Path; Import org.apache.hadoop.io.Text; Import org.apache.hadoop.mapreduce.InputSplit; Import org.apache.hadoop.mapreduce.JobContext; Import org.apache.hadoop.mapreduce.RecordReader; Import org.apache.hadoop.mapreduce.TaskAttemptContext; Public class KVV format input format input in the input format & lt; Text, text & gt; {Public KeyWillextInputFormat () {// Collected Code Throw New Runtime Exception ("Compiled Code"); } Protected Boolean undoubtedly (JobContest Reference, Path File) {// Collected Code Throw New Runtime Exception ("Compiled Code"); } Public Recorders & lt; Text, text & gt; CreateRecordReader (InputSplit genericSplit, TaskAttemptContext reference) throws IOException {// Collected code throws new runtime exceptions ("compiled code"); }}

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