From 26c490f404731d053a6205719b6246502c07b449 Mon Sep 17 00:00:00 2001
From: Patrick Simianer <p@simianer.de>
Date: Sat, 14 Jun 2014 16:46:27 +0200
Subject: init

---
 hadoop/wordcount/pipes/wordcount.cc | 38 +++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 hadoop/wordcount/pipes/wordcount.cc

(limited to 'hadoop/wordcount/pipes/wordcount.cc')

diff --git a/hadoop/wordcount/pipes/wordcount.cc b/hadoop/wordcount/pipes/wordcount.cc
new file mode 100644
index 0000000..c9394d5
--- /dev/null
+++ b/hadoop/wordcount/pipes/wordcount.cc
@@ -0,0 +1,38 @@
+#include "wordcount.hh"
+
+
+void
+WordcountMapper::map(HadoopPipes::MapContext &context)
+{
+  typedef boost::tokenizer<> tokenizer_t;
+  tokenizer_t tokenizer(context.getInputValue());
+
+  for(tokenizer_t::const_iterator i = tokenizer.begin();
+      tokenizer.end() != i; ++i) {
+    context.emit(boost::to_lower_copy(*i), "1");
+  }
+}
+
+void
+WordcountReducer::reduce(HadoopPipes::ReduceContext &context)
+{
+  uint32_t count(0);
+
+  do {
+	  ++count;
+  } while(context.nextValue());
+
+  //std::cout << context.getInputKey() << endl;
+  context.emit(context.getInputKey(),
+               boost::lexical_cast<std::string>(count));
+}
+
+
+int
+main(int argc, char *argv[])
+{
+  HadoopPipes::TemplateFactory2<WordcountMapper,
+                                WordcountReducer> factory;
+  return HadoopPipes::runTask(factory);
+}
+
-- 
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