1.0 releasedv0.1

1 files changed, 82 insertions, 0 deletions

diff --git a/client/ServerRequester.java b/client/ServerRequester.java
new file mode 100644
index 0000000..588d528
--- /dev/null
+++ b/client/ServerRequester.java
@@ -0,0 +1,82 @@
+/**
+ * 
+ */
+package client;
+
+
+import java.io.*;
+import java.net.*;
+import java.security.*;
+import javax.net.*;
+import javax.net.ssl.*;
+
+import shared.*;
+import shared.remotecall.*;
+
+/**
+ * This class only has static members. Its used for creating a client socket to connect and
+ * communicate with the calendar server.  
+ * @author buetow
+ */
+public class ServerRequester  {
+	/**
+	 * This method creates a new client socket.
+	 * @return Returns a client socket object.
+	 * @throws IOException
+	 */
+	private static Socket makeClientSocket() throws IOException {
+		if (!Config.getBooleanValue("use_ssl")) {
+			Main.statusMessage("Making non-SSL Socket...");
+			return new Socket(Config.getServerAddress(), Config.getIntValue("server_port"));
+		}
+
+		Main.statusMessage("Making SSL Socket...");
+		//Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
+		SocketFactory socketFactory = SSLSocketFactory.getDefault();
+		return socketFactory.createSocket(Config.getServerAddress(), Config.getIntValue("server_port"));
+	}
+	
+	/**
+	 * Sends a client request to the netcalendar server end receives a server response object.
+	 * @param clientRequest Specifies the client request to send to the calendar server.
+	 * @return Returns the server response. It returns null if no response is available.
+	 */
+	public final static ServerResponse sendClientRequest(ClientRequest clientRequest) {
+		Main.statusMessage("Sending client request to server...");
+		
+		ServerResponse serverResponse = null;
+		
+		try {
+			Socket socket = makeClientSocket();
+			socket.setKeepAlive(true);
+			
+			// Send the client request to the server 
+			OutputStream outputStream = socket.getOutputStream();
+			ObjectOutput objectOutput = new ObjectOutputStream(outputStream);
+			
+			objectOutput.writeObject(clientRequest);
+			objectOutput.flush();			
+
+			// We only want to receive data if the request new events, not if we only send
+			// changed events!
+			if (clientRequest.requestsNewEvents()) {
+				// Recieve the server's response
+				InputStream inputStream = socket.getInputStream();
+				ObjectInput objectInput = new ObjectInputStream(inputStream);
+				serverResponse = (ServerResponse) objectInput.readObject();
+			}
+			
+			objectOutput.close();
+			socket.close();
+			
+		} catch (Exception e) {
+			Main.infoMessage("Client error during serialization: " + e.getMessage());
+			Main.statusMessage("Error: Client request did not succeed! Server down?");
+			return serverResponse;
+		}
+		
+		Main.statusMessage("Last client request succeeded");
+		// Returns null if no response is available!
+		return serverResponse;
+	}
+}