From 69729ebb20fc34f5d836d0ba9dc416114f2c9c4a Mon Sep 17 00:00:00 2001
From: 20001LastOrder <boqi.chen@mail.mcgill.ca>
Date: Mon, 24 Jun 2019 10:12:34 -0400
Subject: Implement linear regressor using Weka3

---
 .../metrics/calculator/io/CsvFileWriter.xtend         | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

(limited to 'Metrics/Metrics-Calculation/ca.mcgill.ecse.dslreasoner.realistic.metrics.calculator/src/ca/mcgill/ecse/dslreasoner/realistic/metrics/calculator/io/CsvFileWriter.xtend')

diff --git a/Metrics/Metrics-Calculation/ca.mcgill.ecse.dslreasoner.realistic.metrics.calculator/src/ca/mcgill/ecse/dslreasoner/realistic/metrics/calculator/io/CsvFileWriter.xtend b/Metrics/Metrics-Calculation/ca.mcgill.ecse.dslreasoner.realistic.metrics.calculator/src/ca/mcgill/ecse/dslreasoner/realistic/metrics/calculator/io/CsvFileWriter.xtend
index 01e3940b..00b38d90 100644
--- a/Metrics/Metrics-Calculation/ca.mcgill.ecse.dslreasoner.realistic.metrics.calculator/src/ca/mcgill/ecse/dslreasoner/realistic/metrics/calculator/io/CsvFileWriter.xtend
+++ b/Metrics/Metrics-Calculation/ca.mcgill.ecse.dslreasoner.realistic.metrics.calculator/src/ca/mcgill/ecse/dslreasoner/realistic/metrics/calculator/io/CsvFileWriter.xtend
@@ -2,19 +2,34 @@ package ca.mcgill.ecse.dslreasoner.realistic.metrics.calculator.io;
 
 import java.io.File
 import java.io.FileNotFoundException
+import java.io.FileOutputStream
 import java.io.PrintWriter
 import java.util.ArrayList
 import java.util.List
 
 class CsvFileWriter {
+	
 	def static void write(ArrayList<ArrayList<String>> datas, String uri) {
 		if(datas.size() <= 0) {
 			return;
 		}
-		
+		val PrintWriter writer = new PrintWriter(new File(uri));
+		output(writer, datas, uri);
+	}
+	
+	def static void append(ArrayList<ArrayList<String>> datas, String uri) {
+		if(datas.size() <= 0) {
+			return;
+		}
+		val PrintWriter writer = new PrintWriter(new FileOutputStream(new File(uri), true));
+		output(writer, datas, uri);
+	}
+	
+	
+	def private static void output(PrintWriter writer, ArrayList<ArrayList<String>> datas, String uri) {
 		//println("Output csv for " + uri);
 		try  {
-			val PrintWriter writer = new PrintWriter(new File(uri));
+			
 			val output = new StringBuilder;
 			for(List<String> datarow : datas){
 				for(var i = 0; i < datarow.size() - 1; i++){
-- 
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