From: pmarguerite <pmarguerite@issues.jalview.org>
Date: Thu, 14 Dec 2006 21:13:03 +0000 (+0000)
Subject: SimpleClientFactory Added support to create a IClient for a given Session to a given... 
X-Git-Tag: Release_0.2~217
X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;h=713910e1326aa59dc6e2150d0f870e4f3f4c9f11;p=vamsas.git

SimpleClientFactory Added support to create a IClient for a given Session to a given session URN

git-svn-id: https://svn.lifesci.dundee.ac.uk/svn/repository/trunk@303 be28352e-c001-0410-b1a7-c7978e42abec
---

diff --git a/src/uk/ac/vamsas/client/simpleclient/SimpleClientFactory.java b/src/uk/ac/vamsas/client/simpleclient/SimpleClientFactory.java
index f3dfb52..f93fa28 100644
--- a/src/uk/ac/vamsas/client/simpleclient/SimpleClientFactory.java
+++ b/src/uk/ac/vamsas/client/simpleclient/SimpleClientFactory.java
@@ -12,6 +12,7 @@ package uk.ac.vamsas.client.simpleclient;
 import java.io.File;
 
 import java.io.IOException;
+import java.net.MalformedURLException;
 
 
 import org.apache.commons.logging.Log;
@@ -125,7 +126,7 @@ public class SimpleClientFactory implements IClientFactory {
         if (sessionHandles != null)
           {
             sessions = new String[sessionHandles.length];
-            for (int i = sessionHandles.length -1; i > 0; i--)
+            for (int i = sessionHandles.length -1; i > -1; i--)
               {
                 SessionHandle sessionHandle = sessionHandles[i];
                 sessions [i] = sessionHandle.getSessionUrn();
@@ -135,11 +136,6 @@ public class SimpleClientFactory implements IClientFactory {
     return sessions;
   }
   
-  
-  private void discoverSession()
-  {
-   
-  }
 
   /**
    * @see uk.ac.vamsas.client.IClientFactory#getIClient(uk.ac.vamsas.client.ClientHandle)
@@ -149,25 +145,79 @@ public class SimpleClientFactory implements IClientFactory {
    */
   public IClient getIClient(ClientHandle applicationHandle)
       throws NoDefaultSessionException {
-    
+    // create a new session
+    // register new ClientHandle in session
+    // create SimpleClient instance
     return this.getIClient(applicationHandle, (UserHandle) null);
   }
 
   /**
+   * the URN should be something like simpleclient:FILEPATH URL encoded
    * @see uk.ac.vamsas.client.IClientFactory#getIClient(uk.ac.vamsas.client.ClientHandle, java.lang.String)
    */
   public IClient getIClient(ClientHandle applicationHandle, String sessionUrn) {
-    // TODO Auto-generated method stub
-    return null;
+//  locate session from Urn
+    // check that clientHandle is unique (with default user) - if not update the clientHandle urn to make it unique.
+    // wait for lock and attach to session
+    // create SimpleClient instance
+    log.debug("Trying to create session with URN "+sessionUrn);
+    return this.getIClient(applicationHandle, null, sessionUrn);
+  
   }
 
+  private File convertSessionUrnToFile(String sessionUrn) throws InvalidSessionUrnException
+  {
+    if (sessionUrn == null)
+      {
+        log.debug("Incorrect URN: can not open session.");
+        throw new InvalidSessionUrnException();
+      }
+    
+    SessionUrn urn = new SessionUrn(sessionUrn);
+   return urn.asFile();
+    
+  }
+  
   /**
    * @see uk.ac.vamsas.client.IClientFactory#getIClient(uk.ac.vamsas.client.ClientHandle, uk.ac.vamsas.client.UserHandle, java.lang.String)
    */
   public IClient getIClient(ClientHandle applicationHandle, UserHandle userId,
       String sessionUrn) {
-    // TODO Auto-generated method stub
-    return null;
+//  locate session from Urn
+    // check Uniqueness of user + ClientHandle in the session. Update clientHandle urn accordingly.
+    // wait for lock, attach to session
+    // create client instance
+    SimpleClient client = null;
+    
+    try {
+      File sessionDirectory = this.convertSessionUrnToFile(sessionUrn);
+      //create session
+      log.debug("found session directory "+sessionDirectory.getAbsolutePath());
+      VamsasSession vamsasSession = new VamsasSession(sessionDirectory);
+ 
+      if (userId == null)
+        {
+        //create a default userHandle
+        //with current OS user and hostname
+          userId = new UserHandle(System.getProperty("user.name", System.getProperty("USERNAME","Joe Doe")),
+              System.getProperty("host.name",System.getProperty("HOSTNAME", "Unknown") ));// clientName, clientVersion,  sessionPath);
+        }
+ 
+ 
+ //create simple client
+       client = new SimpleClient(userId,  applicationHandle,  vamsasSession);
+    } catch (MalformedURLException e) {
+      log.error("error while creating new IClient: incorrect session urn",e);
+      client = null;
+     
+    } catch (InvalidSessionUrnException e) {
+      log.error("error while creating new IClient: incorrect session urn",e);
+      client = null;
+    } catch (IOException e) {
+      log.error("error while creating new IClient: file access error",e);
+      client = null;
+    }
+    return client;
   }
 
   /**
@@ -175,6 +225,9 @@ public class SimpleClientFactory implements IClientFactory {
    */
   public IClient getIClient(ClientHandle applicationHandle, UserHandle userId)
       throws NoDefaultSessionException {
+    // create new session
+    // register SimpleClient and UserHandles in session
+    // create client instance
     SimpleClient client = null;
     if (this.sessionArena==null)
       throw new Error("Improperly initialised SimpleClientFactory object - null sessionArena.");