Index: /saga/trunk/examples/misc/aws_simple.cpp
===================================================================
--- /saga/trunk/examples/misc/aws_simple.cpp (revision 3242)
+++ /saga/trunk/examples/misc/aws_simple.cpp (revision 3242)
@@ -0,0 +1,56 @@
+
+#include <saga/saga.hpp>
+
+///////////////////////////////////////////////////////////////////////////////
+int main (int argc, char* argv[])
+{
+  try
+  {
+    // set up security
+    saga::context c ("eucalyptus");
+    c.set_defaults ();
+
+    saga::session s;
+    s.add_context (c);
+
+    // start job service: this creates a VM
+    saga::job::service js (s, "eucalyptus://");
+
+    // job description to run
+    saga::job::description jd;
+
+    jd.set_attribute (saga::job::attributes::description_executable, "/bin/ls");
+    jd.set_attribute (saga::job::attributes::description_interactive, "True");
+
+    std::vector <std::string> args;
+
+    args.push_back ("/");
+
+    jd.set_vector_attribute (saga::job::attributes::description_arguments, args);
+
+    // run job
+    saga::job::job j = js.create_job (jd);
+    j.run ();
+
+    // catch stdout
+    saga::job::istream out = j.get_stdout ();
+    while ( true )
+    {
+      char buffer[255];
+      out.read (buffer, sizeof (buffer));
+
+      if ( out.gcount () > 0 )
+        std::cout << std::string (buffer, out.gcount ());
+
+      if ( out.fail () )
+        break;
+    }
+  }
+  catch ( saga::exception const & e )
+  {
+    std::cerr << e.what ();
+  }
+
+  return 0;
+}
+
Index: /saga/trunk/examples/misc/aws.cpp
===================================================================
--- /saga/trunk/examples/misc/aws.cpp (revision 3182)
+++ /saga/trunk/examples/misc/aws.cpp (revision 3242)
@@ -1,6 +1,6 @@
 //  Copyright (c) 2005-2007 Andre Merzky <andre@merzky.net>
-// 
-//  Distributed under the Boost Software License, Version 1.0. 
-//  (See accompanying file LICENSE file or copy at 
+//
+//  Distributed under the Boost Software License, Version 1.0.
+//  (See accompanying file LICENSE file or copy at
 //  http://www.boost.org/LICENSE_1_0.txt)
 
@@ -35,51 +35,87 @@
 
 ///////////////////////////////////////////////////////////////////////////////
+
+void test_cloud (saga::job::description jd, 
+                 std::string            type, 
+                 std::string            instance = "")
+{
+  saga::url js_url (type + "://" + instance);
+
+  std::cout << " ----------------------- 0 (" << type << ") \n";
+
+  saga::session s1;
+
+  std::cout << " ----------------------- 1 (" << type << ") \n";
+
+  saga::context c1 (type);
+
+  std::cout << " ----------------------- 2 (" << type << ") \n";
+
+  c1.set_defaults ();
+
+  std::cout << " ----------------------- 3 (" << type << ") \n";
+
+  s1.add_context (c1);
+
+  std::cout << " ----------------------- 4 (" << type << " - " << js_url << ") \n";
+
+  saga::job::service js1 (s1, js_url);
+
+  std::cout << " ----------------------- 5 (" << type << ") \n";
+
+  saga::job::job j1 = js1.create_job (jd);
+
+  std::cout << " ----------------------- 6 (" << type << ") \n";
+
+  j1.run ();
+
+  std::cout << " ----------------------- 7 (" << type << ") \n";
+
+  print_io (j1);
+
+  std::cout << " ----------------------- 8 (" << type << ") \n";
+}
+
+///////////////////////////////////////////////////////////////////////////////
 int main (int argc, char* argv[])
 {
+  try
+  {
+    // job description is shared by all sessions
+    saga::job::description jd;
 
-  // job description is shared by all sessions
-  saga::job::description jd;
+    jd.set_attribute (saga::job::attributes::description_executable,  "hostname");
+    jd.set_attribute (saga::job::attributes::description_executable, "/usr/local/packages/saga-1.1/bin/saga-file");
+    jd.set_attribute (saga::job::attributes::description_executable, "/bin/ls");
+    jd.set_attribute (saga::job::attributes::description_interactive, "True");
 
-  jd.set_attribute ("Executable", "hostname");
-  jd.set_attribute ("Interactive", "True");
+    std::vector <std::string> args;
 
+    // args.push_back ("list_dir");
+    args.push_back ("/");
 
-  // 3 sessions
-  saga::session s1;
-  saga::session s2;
-  saga::session s3;
+    jd.set_vector_attribute (saga::job::attributes::description_arguments, args);
 
+    saga::url t ("file://localhost//Users/merzky/links/saga/projects/applications/MapReduce/samples/file.txt");
 
-  // 3 contexts
-  saga::context c1 ("nimbus");
-  saga::context c2 ("eucalyptus");
-  saga::context c3 ("ec2");
-
-  c1.set_defaults ();
-  c2.set_defaults ();
-  c3.set_defaults ();
-
-
-  // one context per session
-  s1.add_context (c1);
-  s2.add_context (c2);
-  s3.add_context (c3);
-
-
-  // one job service per session
-  saga::job::service js1 (s1);
-  saga::job::service js2 (s2);
-  saga::job::service js3 (s3);
-
-
-  // run 1 job per job service
-
-  saga::job::job j1 = js1.create_job (jd);
-  saga::job::job j2 = js2.create_job (jd);
-  saga::job::job j3 = js3.create_job (jd);
-
-  j1.run ();   print_io (j1);
-  j2.run ();   print_io (j2);
-  j3.run ();   print_io (j3);
+    //  FIXME: the job service contact should point to the ec2 service instance.
+    //  Problem: what protocol to use?  We need to denotify the context type (do
+    //  we?), _and_ the ec2 service protocol (http/https).
+    //
+    // "https://ec2.amazonaws.com/"
+    // "http://mayhem9.cs.ucsb.edu:8773/services/Eucalyptus"
+    // "https://tp-vm1.ci.uchicago.edu:8445/wsrf/services/ElasticNimbusService"
+    // "https://vm02.cct.lsu.edu:8443/"
+    
+ // test_cloud (jd, "ec2");
+    test_cloud (jd, "ec2",        "i-d642c7bf");
+ // test_cloud (jd, "eucalyptus", "i-417E085F");
+ // test_cloud (jd, "nimbus");
+  
+  }
+  catch ( saga::exception const & e )
+  {
+    std::cerr << e.what ();
+  }
 
   return 0;