Examples of org.jclouds.compute.domain.ExecResponse

org.jclouds.compute.domain.ExecResponse
@author Adrian Cole

      assertTrue(socketTester.apply(socket), socket.toString());
      SshClient api = context.utils().injector().getInstance(SshClient.Factory.class)
            .create(socket, LoginCredentials.builder().user("root").privateKey(key.get("private")).build());
      try {
         api.connect();
         ExecResponse exec = api.exec("echo hello");
         System.out.println(exec);
         assertEquals(exec.getOutput().trim(), "hello");
      } finally {
         if (api != null)
            api.disconnect();
      }
   }

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               throw new RuntimeException("path " + path + " not stubbed");
            }


            public ExecResponse exec(String command) {
               if (command.equals("hostname")) {
                  return new ExecResponse(sshHost, "", 0);
               }
               throw new RuntimeException("command " + command + " not stubbed");
            }


            @Override

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   @Test
   public void testExecHostname() throws IOException {
      SshClient client = setupClient();
      try {
         ExecResponse response = client.exec("hostname");
         assertEquals(response.getExitStatus(), 0);
         assertEquals(response.getError(), "");
         assertEquals(response.getOutput().trim(), "localhost".equals(sshHost) ? InetAddress.getLocalHost().getHostName()
               : sshHost);
      } finally {
         client.disconnect();
      }
   }

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   @Test
   public void testExecInvalidCommand() throws IOException {
      SshClient client = setupClient();
      try {
         ExecResponse response = client.exec("thisCommandDoesNotExist");
         assertNotEquals(response.getExitStatus(), 0);
         assertTrue(response.getOutput().contains("not found") || response.getError().contains("not found"), 
               "stdout="+response.getOutput()+"; stderr="+response.getError());
      } finally {
         client.disconnect();
      }
   }

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   public void testExecHostnameRepeatedlyWithSameSessions() throws Exception {
      final SshClient client = setupClient();
      
      try {
         for (int i = 0; i < 100; i++) {
            ExecResponse response = client.exec("hostname");
            assertEquals(response.getError(), "");
            assertEquals(response.getOutput().trim(), "localhost".equals(sshHost) ? InetAddress.getLocalHost().getHostName()
                     : sshHost);
            //System.out.println("completed (sequentially) "+i);
         }
      } finally {
         client.disconnect();

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      try {
         for (int i = 0; i < 100; i++) {
            futures.add(userExecutor.submit(new Callable<ExecResponse>() {
               @Override
               public ExecResponse call() {
                  ExecResponse response = client.exec("hostname");
                  //System.out.println("completed (concurrently) "+count.incrementAndGet());
                  return response;
                  
               }
            }));
         }
         List<ExecResponse> responses = Futures.allAsList(futures).get(3000, TimeUnit.SECONDS);
         for (ExecResponse response : responses) {
            assertEquals(response.getError(), "");
            assertEquals(response.getOutput().trim(), "localhost".equals(sshHost) ? InetAddress.getLocalHost().getHostName()
                     : sshHost);
         }
      } finally {
         userExecutor.shutdownNow();
         client.disconnect();

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            Command output = session.exec(checkNotNull(command, "command"));
            String outputString = IOUtils.readFully(output.getInputStream()).toString();
            output.join(sshClientConnection.getSessionTimeout(), TimeUnit.MILLISECONDS);
            int errorStatus = output.getExitStatus();
            String errorString = IOUtils.readFully(output.getErrorStream()).toString();
            return new ExecResponse(outputString, errorString, errorStatus);
         } finally {
            clear();
         }
      }

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               wrapInInitScript(false).runAsRoot(false).overrideLoginCredentials(good)).entrySet()) {
            checkResponseEqualsHostname(response.getValue(), response.getKey());
         }


         // test single-node execution
         ExecResponse response = client.runScriptOnNode(node.getId(), "hostname",
               wrapInInitScript(false).runAsRoot(false));
         checkResponseEqualsHostname(response, node);
         OperatingSystem os = node.getOperatingSystem();


         // test bad password
         tryBadPassword(group, good);


         runScriptWithCreds(group, os, good);


         checkNodes(nodes, group, "runScriptWithCreds");


         // test adding AdminAccess later changes the default boot user, in this
         // case to foo, with home dir /over/ridden/foo
         ListenableFuture<ExecResponse> future = client.submitScriptOnNode(node.getId(), AdminAccess.builder()
               .adminUsername("foo").adminHome("/over/ridden/foo").build(), nameTask("adminUpdate"));


         response = future.get(3, TimeUnit.MINUTES);


         assert response.getExitStatus() == 0 : node.getId() + ": " + response;


         node = client.getNodeMetadata(node.getId());
         // test that the node updated to the correct admin user!
         assertEquals(node.getCredentials().identity, "foo");
         assert node.getCredentials().credential != null : nodes;


         weCanCancelTasks(node);


         assert response.getExitStatus() == 0 : node.getId() + ": " + response;


         response = client.runScriptOnNode(node.getId(), "echo $USER", wrapInInitScript(false).runAsRoot(false));


         assert response.getOutput().trim().equals("foo") : node.getId() + ": " + response;


      } finally {
         client.destroyNodesMatching(inGroup(group));
      }
   }

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   @Test(enabled = false)
   public void weCanCancelTasks(NodeMetadata node) throws InterruptedException, ExecutionException {
      ListenableFuture<ExecResponse> future = client.submitScriptOnNode(node.getId(), "sleep 300",
            nameTask("sleeper").runAsRoot(false));
      ExecResponse response = null;
      try {
         response = future.get(1, TimeUnit.MILLISECONDS);
         fail(node.getId() + ": " + response);
      } catch (TimeoutException e) {
         assert !future.isDone();
         response = client.runScriptOnNode(node.getId(), "/tmp/init-sleeper status",
               wrapInInitScript(false).runAsRoot(false));
         assert !response.getOutput().trim().equals("") : node.getId() + ": " + response;
         future.cancel(true);
         response = client.runScriptOnNode(node.getId(), "/tmp/init-sleeper status",
               wrapInInitScript(false).runAsRoot(false));
         assert response.getOutput().trim().equals("") : node.getId() + ": " + response;
         try {
            future.get();
            fail(future.toString());
         } catch (CancellationException e1) {

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   }


   protected ServiceStats trackAvailabilityOfProcessOnNode(Statement process, String processName, NodeMetadata node) {
      ServiceStats stats = new ServiceStats();
      Stopwatch watch = new Stopwatch().start();
      ExecResponse exec = client.runScriptOnNode(node.getId(), process, runAsRoot(false).wrapInInitScript(false));
      stats.backgroundProcessMilliseconds = watch.elapsed(TimeUnit.MILLISECONDS);
      watch.reset().start();
      
      HostAndPort socket = null;
      try {
         socket = openSocketFinder.findOpenSocketOnNode(node, 8080, 600, TimeUnit.SECONDS);
      } catch (NoSuchElementException e) {
         throw new NoSuchElementException(format("%s%n%s%s", e.getMessage(), exec.getOutput(), exec.getError()));
      }


      stats.socketOpenMilliseconds = watch.elapsed(TimeUnit.MILLISECONDS);


      getAnonymousLogger().info(format("<< %s on node(%s)[%s] %s", processName, node.getId(), socket, stats));

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