From f6c9f4f208a737118ca5616364a7349145d825f8 Mon Sep 17 00:00:00 2001
From: lwm14001 <luke.malinowski@uconn.edu>
Date: Wed, 16 Nov 2016 16:14:42 -0500
Subject: [PATCH] Quinn wants the new code

---
 DCSJSON.java | 146 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 146 insertions(+)
 create mode 100644 DCSJSON.java

diff --git a/DCSJSON.java b/DCSJSON.java
new file mode 100644
index 0000000..f667d7a
--- /dev/null
+++ b/DCSJSON.java
@@ -0,0 +1,146 @@
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.sql.*;
+
+import javax.naming.Context;
+import javax.naming.InitialContext;
+import javax.naming.NamingException;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.sql.DataSource;
+
+public class DCSJSON extends HttpServlet {
+	private static final long serialVersionUID = 1L;
+	
+		
+	// This sets up the JSON array for The final JSON object
+        public String reportStrings(ResultSet rs, String columnName) throws SQLException{
+
+		// Should use string buffer instead
+		String resultantJSON = "[";
+
+		//index for code that should run after first loop back
+		int x = 0;
+		while(rs.next()){
+			if (x!=0) {resultantJSON += ",";}
+			resultantJSON += "\"" + rs.getString(columnName) + "\"";
+			x += 1;
+		}
+		resultantJSON += "]";
+		return resultantJSON;
+	} 
+	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		Context ctx = null;
+		Connection con = null;
+		Statement stmt = null;
+		ResultSet rs = null;
+		try{
+			ctx = new InitialContext();
+			DataSource ds = (DataSource) ctx.lookup("java:/comp/env/jdbc/LocalStudentAdminDB");
+			con = ds.getConnection();
+			stmt = con.createStatement();
+			PrintWriter out = response.getWriter();
+			rs = stmt.executeQuery("CALL getAllTermNames()");//SELECT * FROM SA_Development.TERM"
+//			ResultSetMetaData rsmd = rs.getMetaData();
+//			int columnCount = rsmd.getColumnCount();				
+			String JSONEntity = "{\"TERM_NAME\":" + reportStrings(rs,"TERM_NAME") + ",\"CAMPUS_NAME\":";
+			rs.close();
+			rs = stmt.executeQuery("CALL getAllCampusNames()");
+			JSONEntity += reportStrings(rs,"CAMPUS_NAME") + ",\"DEPARTMENT_NAME\":";
+			rs.close();
+			rs = stmt.executeQuery("CALL getAllDepartmentNames()");
+			JSONEntity += reportStrings(rs,"DEPARTMENT_NAME") + "}";
+			response.setContentType("application/json");
+			out.print(JSONEntity);
+		}catch(NamingException e){
+			e.printStackTrace();
+		} catch (SQLException e) {
+			e.printStackTrace();
+		}finally{
+			try {
+				rs.close();
+				stmt.close();
+				con.close();
+				ctx.close();
+			} catch (SQLException e) {
+				System.out.println("Exception in closing DB resources");
+			} catch (NamingException e) {
+				System.out.println("Exception in closing Context");
+			}
+			
+		}
+	}
+	public String extractDCSArgs(HttpServletRequest request) {
+		String result = "CALL getCourseSearchResults('" + 
+				request.getParameter("Term") + "','" + 
+				request.getParameter("Campus") + "'," + 
+				request.getParameter("Availability") + "," + 
+				request.getParameter("Honors") + "," + 
+				request.getParameter("Q") + "," + 
+				request.getParameter("W") + "," + 
+				"'00:00:00'," + 
+				"'23:59:59','" + 
+				request.getParameter("Department") + "'," + 
+				request.getParameter("CourseNumber");
+		return result;
+	}
+	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		Context ctx = null;
+		Connection con = null;
+		Statement stmt = null;
+		ResultSet classSearchRes = null;
+		//out.println(extractDCSArgs(request));
+		try{
+			ctx = new InitialContext();
+			DataSource ds = (DataSource) ctx.lookup("java:/comp/env/jdbc/LocalStudentAdminDB");
+			con = ds.getConnection();
+			stmt = con.createStatement();
+			//add extractDCSArgs()
+			PrintWriter out = response.getWriter();
+			classSearchRes = stmt.executeQuery("CALL getCourseSearchResults('SPRING_2016','Storrs',0,0,0,0,'00:00:00','23:59:59','Computer Science and Engineering',1729)");
+			ResultSetMetaData rsmd = classSearchRes.getMetaData();
+			
+			// DynamicClassSearchResult in JSON
+			String DCSRJSON = "[";
+			int addComma = 0;
+			while(classSearchRes.next()) {
+				if(addComma >= 1) {DCSRJSON += ",";}
+				DCSRJSON += reportResultRow(classSearchRes,classSearchRes.getMetaData());
+				addComma += 1;
+			}
+			DCSRJSON += "]";
+			response.setContentType("application/json");
+			out.print(DCSRJSON);
+		}catch(NamingException e){
+			e.printStackTrace();
+		} catch (SQLException e) {
+			e.printStackTrace();
+		}finally{
+			try {
+				classSearchRes.close();
+				stmt.close();
+				con.close();
+				ctx.close();
+			} catch (SQLException e) {
+				System.out.println("Exception in closing DB resources");
+			} catch (NamingException e) {
+				System.out.println("Exception in closing Context");
+			}
+			
+		}
+	}
+	public String reportResultRow(ResultSet classSearchRes, ResultSetMetaData resTableMetaData) throws SQLException{
+		String rowResultJSON = "{";
+		int columnCount = resTableMetaData.getColumnCount();
+		for(int i = 1;i <= columnCount;i++){
+			if(i >= 1){rowResultJSON += ",";}
+			rowResultJSON += "\"" + resTableMetaData.getColumnName(i) + "\":\"" + classSearchRes.getString(i) + "\"";
+		}
+		rowResultJSON += "}";
+		return rowResultJSON;
+	}
+}