add coverage for hyracks graph building
diff --git a/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/NodeWritable.java b/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/NodeWritable.java
index f69f122..5eeea48 100644
--- a/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/NodeWritable.java
+++ b/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/NodeWritable.java
@@ -296,7 +296,8 @@
         sbuilder.append(forwardReverseList.toString()).append('\t');
         sbuilder.append(reverseForwardList.toString()).append('\t');
         sbuilder.append(reverseReverseList.toString()).append('\t');
-        sbuilder.append(kmer.toString()).append('}');
+        sbuilder.append(kmer.toString()).append('\t');
+        sbuilder.append(averageCoverage).append('x').append('}');
         return sbuilder.toString();
     }
 
diff --git a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/ReadsKeyValueParserFactory.java b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/ReadsKeyValueParserFactory.java
index f29c51b..572fb96 100644
--- a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/ReadsKeyValueParserFactory.java
+++ b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/ReadsKeyValueParserFactory.java
@@ -124,8 +124,8 @@
                 curKmerDir = curForwardKmer.compareTo(curReverseKmer) <= 0 ? KmerDir.FORWARD : KmerDir.REVERSE;
                 nextForwardKmer.setAsCopy(curForwardKmer);
                 nextKmerDir = setNextKmer(nextForwardKmer, nextReverseKmer, array[kmerSize]);
-                setnodeId(curNode, mateId, readID, 0);
-                setnodeId(nextNode, mateId, readID, 0);
+                setNodeBasicInfo(curNode, mateId, readID, 0, 1);
+                setNodeBasicInfo(nextNode, mateId, readID, 0, 1);
                 setEdgeListForCurAndNextKmer(curKmerDir, curNode, nextKmerDir, nextNode);
                 writeToFrame(curForwardKmer, curReverseKmer, curKmerDir, curNode, writer);
 
@@ -138,7 +138,7 @@
                     curNode.set(nextNode);
                     nextNode.reset();
                     nextKmerDir = setNextKmer(nextForwardKmer, nextReverseKmer, array[i]);
-                    setnodeId(nextNode, mateId, readID, 0);
+                    setNodeBasicInfo(nextNode, mateId, readID, 0, 1);
                     setEdgeListForCurAndNextKmer(curKmerDir, curNode, nextKmerDir, nextNode);
                     writeToFrame(curForwardKmer, curReverseKmer, curKmerDir, curNode, writer);
                 }
@@ -147,11 +147,12 @@
                 writeToFrame(nextForwardKmer, nextReverseKmer, nextKmerDir, nextNode, writer);
             }
 
-            public void setnodeId(NodeWritable node, byte mateId, long readID, int posId) {
+            public void setNodeBasicInfo(NodeWritable node, byte mateId, long readID, int posId, int iniCovergage) {
                 nodeId.set(mateId, readID, posId);
                 nodeIdList.reset();
                 nodeIdList.append(nodeId);
                 node.setNodeIdList(nodeIdList);
+                node.setAvgCoverage(iniCovergage);
             }
 
             public KmerDir setNextKmer(KmerBytesWritable forwardKmer, KmerBytesWritable ReverseKmer,
diff --git a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/AggregateKmerAggregateFactory.java b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/AggregateKmerAggregateFactory.java
index 03b220e..efb7609 100644
--- a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/AggregateKmerAggregateFactory.java
+++ b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/AggregateKmerAggregateFactory.java
@@ -75,16 +75,15 @@
                     AggregateState state) throws HyracksDataException {
                 NodeWritable localUniNode = (NodeWritable) state.state;
                 localUniNode.reset();
-//                readKeyKmer.setAsReference(accessor.getBuffer().array(), getOffSet(accessor, tIndex, 0));
                 readNode.setAsReference(accessor.getBuffer().array(), getOffSet(accessor, tIndex, 1));
                 localUniNode.getNodeIdList().appendList(readNode.getNodeIdList());
                 localUniNode.getFFList().appendList(readNode.getFFList());
                 localUniNode.getFRList().appendList(readNode.getFRList());
                 localUniNode.getRFList().appendList(readNode.getRFList());
                 localUniNode.getRRList().appendList(readNode.getRRList());
-                
+                localUniNode.addCoverage(readNode);
                 // make an empty field
-                tupleBuilder.addFieldEndOffset();// mark question?
+//                tupleBuilder.addFieldEndOffset();// mark question?
             }
 
             @Override
@@ -97,6 +96,7 @@
                 localUniNode.getFRList().appendList(readNode.getFRList());
                 localUniNode.getRFList().appendList(readNode.getRFList());
                 localUniNode.getRRList().appendList(readNode.getRRList());
+                localUniNode.addCoverage(readNode);
             }
 
             @Override
diff --git a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/MergeKmerAggregateFactory.java b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/MergeKmerAggregateFactory.java
index 47ae084..f83bc4b 100644
--- a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/MergeKmerAggregateFactory.java
+++ b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/MergeKmerAggregateFactory.java
@@ -75,9 +75,9 @@
                 localUniNode.getFRList().unionUpdate(readNode.getFRList());
                 localUniNode.getRFList().unionUpdate(readNode.getRFList());
                 localUniNode.getRRList().unionUpdate(readNode.getRRList());
-                
+                localUniNode.addCoverage(readNode);
                 //make a fake feild to cheat caller
-                tupleBuilder.addFieldEndOffset();
+ //               tupleBuilder.addFieldEndOffset();
             }
 
             @Override
@@ -95,6 +95,7 @@
                 localUniNode.getFRList().unionUpdate(readNode.getFRList());
                 localUniNode.getRFList().unionUpdate(readNode.getRFList());
                 localUniNode.getRRList().unionUpdate(readNode.getRRList());
+                localUniNode.addCoverage(readNode);
             }
 
             @Override
diff --git a/genomix/genomix-hyracks/src/test/java/edu/uci/ics/genomix/hyracks/newgraph/test/JobRun.java b/genomix/genomix-hyracks/src/test/java/edu/uci/ics/genomix/hyracks/newgraph/test/JobRun.java
index 1ade3a9..3861ac9 100644
--- a/genomix/genomix-hyracks/src/test/java/edu/uci/ics/genomix/hyracks/newgraph/test/JobRun.java
+++ b/genomix/genomix-hyracks/src/test/java/edu/uci/ics/genomix/hyracks/newgraph/test/JobRun.java
@@ -32,11 +32,11 @@
 @SuppressWarnings("deprecation")
 public class JobRun {
     private static final int KmerSize = 3;
-    private static final int ReadLength = 7;
+    private static final int ReadLength = 5;
     private static final String ACTUAL_RESULT_DIR = "actual";
     private static final String PATH_TO_HADOOP_CONF = "src/test/resources/hadoop/conf";
 
-    private static final String DATA_INPUT_PATH = "src/test/resources/data/lastesttest/HighSplitRepeat.txt";
+    private static final String DATA_INPUT_PATH = "src/test/resources/data/lastesttest/LowSplitRepeat.txt";
     private static final String HDFS_INPUT_PATH = "/webmap";
     private static final String HDFS_OUTPUT_PATH = "/webmap_result";