moved sources

1 files changed, 82 insertions, 0 deletions

diff --git a/sources/client/ServerRequester.java b/sources/client/ServerRequester.java
new file mode 100644
index 0000000..9cd7485
--- /dev/null
+++ b/sources/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;
+  }
+}