From d5dc177038ec226e89c66778d391f9eccf11116e Mon Sep 17 00:00:00 2001
From: Feng Liu <liufeng@cnliufeng.com>
Date: Fri, 18 Dec 2009 05:33:54 -0600
Subject: [PATCH] Database initialize.

---
 .gitignore          |  1 +
 SystemDatabase.java | 65 +++++++++++++++++++++++++++++++++++++++++++++
 model/Course.java   | 13 ---------
 3 files changed, 66 insertions(+), 13 deletions(-)
 create mode 100644 .gitignore
 create mode 100644 SystemDatabase.java

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6b468b6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.class
diff --git a/SystemDatabase.java b/SystemDatabase.java
new file mode 100644
index 0000000..e599b55
--- /dev/null
+++ b/SystemDatabase.java
@@ -0,0 +1,65 @@
+import model.*;
+
+import java.io.FileReader;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.util.HashMap;
+
+public class SystemDatabase {
+    private HashMap courses;
+    private HashMap students;
+
+    public SystemDatabase() {
+        readCourseData();
+        readStudentData();
+    }
+
+    private void readCourseData() {
+        try {
+            BufferedReader fileIn = new BufferedReader(new FileReader("courses.txt"));
+            String line = fileIn.readLine();
+
+            while (line != null) {
+                String[] token = line.split(",");
+
+                String cID = token[0];
+                String secID = token[1];
+                String prerequisite = token[2];
+                String days = token[3];
+                int start = Integer.parseInt(token[4]);
+                int end = Integer.parseInt(token[5]);
+
+                Course aCourse = new Course(cID, secID, prerequisite, days, start, end);
+                courses.put(cID, aCourse);
+
+                line = fileIn.readLine();
+            }
+
+            fileIn.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void readStudentData() {
+        try {
+            BufferedReader fileIn = new BufferedReader(new FileReader("courses.txt"));
+            String line = fileIn.readLine();
+
+            while (line != null) {
+                String[] token = line.split(",");
+                int sID = Integer.parseInt(token[0]);
+                String name = token[1];
+                String courseTaken = token[2];
+                Student aStudent = new Student(sID, name, courseTaken);
+                students.put(new Integer(sID), aStudent);
+
+                line = fileIn.readLine();
+            }
+
+            fileIn.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}
diff --git a/model/Course.java b/model/Course.java
index 06c841c..8c0b664 100644
--- a/model/Course.java
+++ b/model/Course.java
@@ -32,19 +32,6 @@ public Course(String id, String section, String pre, String days, int start, int
         this.days = days;
         this.start = start;
         this.end = end;
-
-        /****************
-        try {
-            BufferedReader fileIn = new BufferedReader(new FileReader("courses.txt"));
-            String line = fileIn.readLine();
-            while (line != null) {
-
-                line = fileIn.readLine();
-            }
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        ****************/
     }
 
     public Vector getPrerequisite() {