diff --git a/genomix/genomix-hadoop/src/main/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GenomixDriver.java b/genomix/genomix-hadoop/src/main/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GenomixDriver.java
new file mode 100644
index 0000000..2880b6c
--- /dev/null
+++ b/genomix/genomix-hadoop/src/main/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GenomixDriver.java
@@ -0,0 +1,40 @@
+package edu.uci.ics.genomix.hadoop.contrailgraphbuilding;
+
+import java.io.IOException;
+
+import org.apache.commons.cli.Options;
+import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.Option;
+
+
+public class GenomixDriver {
+    
+    private static class Options {
+        @Option(name = "-inputpath", usage = "the input path", required = true)
+        public String inputPath;
+
+        @Option(name = "-outputpath", usage = "the output path", required = true)
+        public String outputPath;
+
+        @Option(name = "-num-reducers", usage = "the number of reducers", required = true)
+        public int numReducers;
+
+        @Option(name = "-kmer-size", usage = "the size of kmer", required = true)
+        public int sizeKmer;
+        
+        @Option(name = "-read-length", usage = "the length of read", required = true)
+        public int readLength;
+    }
+    
+    public void run(String inputPath, String outputPath, int numReducers, int sizeKmer, int readLength) throws IOException{
+        
+    }
+    
+    public static void main(String[] args) throws Exception {
+        Options options = new Options();
+        CmdLineParser parser = new CmdLineParser(options);
+        parser.parseArgument(args);
+        GenomixDriver driver = new GenomixDriver();
+        driver.run(options.inputPath, options.outputPath, options.numReducers, options.sizeKmer, options.readLength);
+    }
+}
diff --git a/genomix/genomix-hadoop/src/test/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GraphBuildingTest.java b/genomix/genomix-hadoop/src/test/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GraphBuildingTest.java
new file mode 100644
index 0000000..d3d0357
--- /dev/null
+++ b/genomix/genomix-hadoop/src/test/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GraphBuildingTest.java
@@ -0,0 +1,64 @@
+package edu.uci.ics.genomix.hadoop.contrailgraphbuilding;
+
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.mapred.JobConf;
+import org.apache.hadoop.mapred.MiniMRCluster;
+
+public class GraphBuildingTest {
+
+    private JobConf conf = new JobConf();
+    private static final String ACTUAL_RESULT_DIR = "actual1";
+    private static final String HADOOP_CONF_PATH = ACTUAL_RESULT_DIR + File.separator + "conf.xml";
+    private static final String DATA_PATH = "data/webmap/text.txt";
+    private static final String HDFS_PATH = "/webmap";
+    private static final String RESULT_PATH = "/result1";
+    private static final String EXPECTED_PATH = "expected/";
+    private static final int COUNT_REDUCER = 2;
+    private static final int SIZE_KMER = 5;
+    private static final int READ_LENGTH = 8;
+    
+    private MiniDFSCluster dfsCluster;
+    private MiniMRCluster mrCluster;
+    private FileSystem dfs;
+    
+    public void test() throws Exception {
+        FileUtils.forceMkdir(new File(ACTUAL_RESULT_DIR));
+        FileUtils.cleanDirectory(new File(ACTUAL_RESULT_DIR));
+        startHadoop();
+        cleanupHadoop();
+    }
+    
+    private void startHadoop() throws IOException {
+        FileSystem lfs = FileSystem.getLocal(new Configuration());
+        lfs.delete(new Path("build"), true);
+        System.setProperty("hadoop.log.dir", "logs");
+        dfsCluster = new MiniDFSCluster(conf, 2, true, null);
+        dfs = dfsCluster.getFileSystem();
+        mrCluster = new MiniMRCluster(4, dfs.getUri().toString(), 2);
+
+        Path src = new Path(DATA_PATH);
+        Path dest = new Path(HDFS_PATH + "/");
+        dfs.mkdirs(dest);
+        dfs.copyFromLocalFile(src, dest);
+
+        DataOutputStream confOutput = new DataOutputStream(new FileOutputStream(new File(HADOOP_CONF_PATH)));
+        conf.writeXml(confOutput);
+        confOutput.flush();
+        confOutput.close();
+    }
+
+    private void cleanupHadoop() throws IOException {
+        mrCluster.shutdown();
+        dfsCluster.shutdown();
+    }
+
+}