Merge. DatabaseLogin over. Auth = Very Yes.

1 files changed, 81 insertions, 25 deletions

diff --git a/src/uk/org/ury/config/ConfigReader.java b/src/uk/org/ury/config/ConfigReader.java
index 6b66e24..04deb49 100644
--- a/src/uk/org/ury/config/ConfigReader.java
+++ b/src/uk/org/ury/config/ConfigReader.java
@@ -1,49 +1,98 @@
 package uk.org.ury.config;
 
 import java.io.File;
-import org.w3c.dom.*;
 
-import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
 import org.xml.sax.SAXException;
 import org.xml.sax.SAXParseException;
 
-import uk.org.ury.database.UserClass;
+import uk.org.ury.database.exceptions.MissingCredentialsException;
 
+/**
+ * Reads in an XML config file and creates config objects
+ * 
+ * @author Nathan Lasseter
+ */
 public class ConfigReader {
 
-	private Database database;
-	private Auth auth;
+	private Database database = null;
+	private Auth roAuth = null;
+	private Auth rwAuth = null;
 	
+	/**
+	 * Get the database configuration
+	 * 
+	 * @return Database database
+	 */
 	public Database getDatabase() { return database; }
-	public Auth getAuth() { return auth; }
+	/**
+	 * Get the read only login auth configuration
+	 * 
+	 * @return Auth roAauth
+	 */
+	public Auth getRoAuth() { return roAuth; }
+	/**
+	 * Get the read write login auth configuration
+	 * 
+	 * @return Auth rwAauth
+	 */
+	public Auth getRwAuth() { return rwAuth; }
 	
-	public ConfigReader() {
+	/**
+	 * Read in the config file and create the Database and Auth configuration objects.
+	 * Specify a config file.
+	 * @throws MissingCredentialsException 
+	 */
+	public ConfigReader(String configFile) throws MissingCredentialsException {
 		
 		try {
 			DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
 			DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
-			Document doc = docBuilder.parse (new File("res/conf.xml"));
+			Document doc = docBuilder.parse (new File(configFile));
 			doc.getDocumentElement().normalize();
-			
-			System.out.println(doc.getDocumentElement().getNodeName());
-
-			String user = doc.getElementsByTagName("user").item(0).getTextContent();
-			String pass = doc.getElementsByTagName("pass").item(0).getTextContent();
-			UserClass type;
-			if(doc.getElementsByTagName("type").item(0).getTextContent().toLowerCase().equals("read_only")) {
-				type = UserClass.READ_ONLY;
-			} else if(doc.getElementsByTagName("type").item(0).getTextContent().toLowerCase().equals("read_write")) {
-				type = UserClass.READ_WRITE;
-			} else {
-				throw new IllegalArgumentException("Unused user class.");
+						
+			NodeList nList = doc.getElementsByTagName("auth");
+			for(int i = 0; i < nList.getLength(); i++) {
+				Node nNode = nList.item(i);
+				if(nNode.getNodeType() == Node.ELEMENT_NODE) {
+					Element eElement = (Element) nNode;
+					String user = getTagValue("user", eElement);
+					String pass = getTagValue("pass", eElement);
+					String sType = getTagValue("type", eElement);
+					if(sType.equalsIgnoreCase("read_only")) {
+						if(roAuth != null) continue;
+						roAuth = new Auth(user, pass);
+					} else if(sType.equalsIgnoreCase("read_write")) {
+						if(rwAuth != null) continue;
+						rwAuth = new Auth(user, pass);
+					} else {
+						throw new IllegalArgumentException("Unused user class.");
+					}
+				}
 			}
-			auth = new Auth(user, pass, type);
 			
-			String host = doc.getElementsByTagName("host").item(0).getTextContent();
-			int port = Integer.parseInt(doc.getElementsByTagName("port").item(0).getTextContent().trim());
-			String db = doc.getElementsByTagName("db").item(0).getTextContent();
-			database = new Database(host, port, db);
+			nList = doc.getElementsByTagName("database");
+			for(int i = 0; i < nList.getLength(); i++) {
+				if(database != null) break;
+				Node nNode = nList.item(i);
+				if(nNode.getNodeType() == Node.ELEMENT_NODE) {
+					Element eElement = (Element) nNode;
+					String host = getTagValue("host", eElement);
+					String port = getTagValue("port", eElement);
+					String db = getTagValue("db", eElement);
+					database = new Database(host, Integer.parseInt(port.trim()), db);
+				}
+			}
+		}
+		
+		catch(NullPointerException n) {
+			throw new MissingCredentialsException("An element node is empty.");
 		}
 		
 		catch (SAXParseException err) {
@@ -58,4 +107,11 @@ public class ConfigReader {
 	        t.printStackTrace ();
 		}
 	}
+	
+	private static String getTagValue(String sTag, Element eElement){
+		NodeList nlList= eElement.getElementsByTagName(sTag).item(0).getChildNodes();
+		Node nValue = (Node) nlList.item(0);
+		
+		return nValue.getNodeValue();
+	}
 }