C# BatchClient類代碼示例

        /// <summary>
        /// Asynchronous method that delays execution until the specified pool reaches the specified state.
        /// </summary>
        /// <param name="client">A fully intitialized <see cref="BatchClient"/>.</param>
        /// <param name="poolId">The ID of the pool to monitor for the specified <see cref="AllocationState"/>.</param>
        /// <param name="targetAllocationState">The allocation state to monitor.</param>
        /// <param name="timeout">The maximum time to wait for the pool to reach the specified state.</param>
        /// <returns>A <see cref="System.Threading.Tasks.Task"/> object that represents the asynchronous operation.</returns>
        public static async Task WaitForPoolToReachStateAsync(BatchClient client, string poolId, AllocationState targetAllocationState, TimeSpan timeout)
        {
            Console.WriteLine("Waiting for pool {0} to reach allocation state {1}", poolId, targetAllocationState);

            DateTime startTime = DateTime.UtcNow;
            DateTime timeoutAfterThisTimeUtc = startTime.Add(timeout);

            ODATADetailLevel detail = new ODATADetailLevel(selectClause: "id,allocationState");
            CloudPool pool = await client.PoolOperations.GetPoolAsync(poolId, detail);

            while (pool.AllocationState != targetAllocationState)
            {
                Console.Write(".");

                await Task.Delay(TimeSpan.FromSeconds(10));
                await pool.RefreshAsync(detail);

                if (DateTime.UtcNow > timeoutAfterThisTimeUtc)
                {
                    Console.WriteLine();
                    Console.WriteLine("Timed out waiting for pool {0} to reach state {1}", poolId, targetAllocationState);

                    return;
                }
            }

            Console.WriteLine();
        }

 static void DeletePool(BatchClient client)
 {
     client.PoolOperations.DeletePool("testpool1");
     Console.WriteLine("Pool was deleted.");
     Console.WriteLine("Press Enter to continue.");
     Console.ReadLine();
 }

        /// <summary>
        /// Waits for all tasks under the specified job to complete and then prints each task's output to the console.
        /// </summary>
        /// <param name="batchClient">The BatchClient to use when interacting with the Batch service.</param>
        /// <param name="tasks">The tasks to wait for.</param>
        /// <param name="timeout">The timeout.  After this time has elapsed if the job is not complete and exception will be thrown.</param>
        /// <returns>An asynchronous <see cref="Task"/> representing the operation.</returns>
        public static async Task WaitForTasksAndPrintOutputAsync(BatchClient batchClient, IEnumerable<CloudTask> tasks, TimeSpan timeout)
        {
            // We use the task state monitor to monitor the state of our tasks -- in this case we will wait for them all to complete.
            TaskStateMonitor taskStateMonitor = batchClient.Utilities.CreateTaskStateMonitor();

            // Wait until the tasks are in completed state.
            List<CloudTask> ourTasks = tasks.ToList();

            bool timedOut = await taskStateMonitor.WaitAllAsync(ourTasks, TaskState.Completed, timeout);

            if (timedOut)
            {
                throw new TimeoutException("Timed out waiting for tasks");
            }

            // dump task output
            foreach (CloudTask t in ourTasks)
            {
                Console.WriteLine("Task {0}", t.Id);

                //Read the standard out of the task
                NodeFile standardOutFile = await t.GetNodeFileAsync(Constants.StandardOutFileName);
                string standardOutText = await standardOutFile.ReadAsStringAsync();
                Console.WriteLine("Standard out:");
                Console.WriteLine(standardOutText);

                //Read the standard error of the task
                NodeFile standardErrorFile = await t.GetNodeFileAsync(Constants.StandardErrorFileName);
                string standardErrorText = await standardErrorFile.ReadAsStringAsync();
                Console.WriteLine("Standard error:");
                Console.WriteLine(standardErrorText);

                Console.WriteLine();
            }
        }

        /// <summary>
        /// Prints task information to the console for each of the nodes in the specified pool.
        /// </summary>
        /// <param name="poolId">The ID of the <see cref="CloudPool"/> containing the nodes whose task information should be printed to the console.</param>
        /// <returns>A <see cref="System.Threading.Tasks.Task"/> object that represents the asynchronous operation.</returns>
        public static async Task PrintNodeTasksAsync(BatchClient batchClient, string poolId)
        {
            Console.WriteLine("Listing Node Tasks");
            Console.WriteLine("==================");

            ODATADetailLevel nodeDetail = new ODATADetailLevel(selectClause: "id,recentTasks");
            IPagedEnumerable<ComputeNode> nodes = batchClient.PoolOperations.ListComputeNodes(poolId, nodeDetail);
            
            await nodes.ForEachAsync(node =>
            {
                Console.WriteLine();
                Console.WriteLine(node.Id + " tasks:");

                if (node.RecentTasks != null && node.RecentTasks.Any())
                {
                    foreach (TaskInformation task in node.RecentTasks)
                    {
                        Console.WriteLine("\t{0}: {1}", task.TaskId, task.TaskState);
                    }
                }
                else
                {
                    // No tasks found for the node
                    Console.WriteLine("\tNone");
                }
            }).ConfigureAwait(continueOnCapturedContext: false);

            Console.WriteLine("==================");
        }

 private static void DeleteJob(BatchClient client)
 {
     client.JobOperations.DeleteJob("testjob1");
     Console.WriteLine("Job was deleted.");
     Console.WriteLine("Press Enter to continue.");
     Console.ReadLine();
 }

        public BatchService(BatchSharedKeyCredential credentials)
        {
            this.Client = BatchClient.Open(credentials);
            this.Credentials = credentials;
            this.retryPolicy = new LinearRetry(TimeSpan.FromSeconds(10), 5);

            this.Client.CustomBehaviors.Add(new RetryPolicyProvider(this.retryPolicy));
        }

 private static void DeleteTasks(BatchClient client)
 {
     CloudJob job = client.JobOperations.GetJob("testjob1");
     foreach (CloudTask task in job.ListTasks())
     {
         task.Delete();
     }
     Console.WriteLine("All tasks deleted.");
     Console.WriteLine("Press Enter to continue.");
     Console.ReadLine();
 }

 private static void ListTasks(BatchClient client)
 {
     IPagedEnumerable<CloudTask> tasks = client.JobOperations.ListTasks("testjob1");
     foreach (CloudTask task in tasks)
     {
         Console.WriteLine("Task id: " + task.Id);
         Console.WriteLine("   Task status: " + task.State);
         Console.WriteLine("   Task start: " + task.ExecutionInformation.StartTime);
     }
     Console.ReadLine();
 }

        /// <summary>
        /// Lists all the jobs in the Batch account.
        /// </summary>
        /// <param name="batchClient">The BatchClient to use when interacting with the Batch service.</param>
        /// <returns>An asynchronous <see cref="Task"/> representing the operation.</returns>
        public static async Task PrintJobsAsync(BatchClient batchClient)
        {
            Console.WriteLine("Listing Jobs");
            Console.WriteLine("============");

            IPagedEnumerable<CloudJob> jobs = batchClient.JobOperations.ListJobs(new ODATADetailLevel(selectClause: "id,state"));
            await jobs.ForEachAsync(job =>
            {
                Console.WriteLine("State of job " + job.Id + " is " + job.State);
            });

            Console.WriteLine("============");
        }

        /// <summary>
        /// Lists all the pools in the Batch account.
        /// </summary>
        /// <param name="batchClient">The BatchClient to use when interacting with the Batch service.</param>
        /// <returns>An asynchronous <see cref="Task"/> representing the operation.</returns>
        public static async Task PrintPoolsAsync(BatchClient batchClient)
        {
            Console.WriteLine("Listing Pools");
            Console.WriteLine("=============");

            // Using optional select clause to return only the properties of interest. Makes query faster and reduces HTTP packet size impact
            IPagedEnumerable<CloudPool> pools = batchClient.PoolOperations.ListPools(new ODATADetailLevel(selectClause: "id,state,currentDedicated,vmSize"));

            await pools.ForEachAsync(pool =>
            {
                Console.WriteLine("State of pool {0} is {1} and it has {2} nodes of size {3}", pool.Id, pool.State, pool.CurrentDedicated, pool.VirtualMachineSize);
            });
            Console.WriteLine("=============");
        }

        /// <summary>
        /// Creates a CloudJob in the specified pool if a job with the specified ID is not found
        /// in the pool, otherwise returns the existing job.
        /// </summary>
        /// <param name="batchClient">A fully initialized <see cref="BatchClient"/>.</param>
        /// <param name="poolId">The ID of the CloudPool in which the job should be created.</param>
        /// <param name="jobId">The ID of the CloudJob.</param>
        /// <returns>A bound version of the newly created CloudJob.</returns>
        public static async Task<CloudJob> CreateJobAsync(BatchClient batchClient, string poolId, string jobId)
        {
            CloudJob job = await SampleHelpers.GetJobIfExistAsync(batchClient, jobId);

            if (job == null)
            {
                Console.WriteLine("Job {0} not found, creating...", jobId);

                CloudJob unboundJob = batchClient.JobOperations.CreateJob(jobId, new PoolInformation() { PoolId = poolId });
                await unboundJob.CommitAsync();

                // Get the bound version of the job with all of its properties populated
                job = await batchClient.JobOperations.GetJobAsync(jobId);
            }

            return job;
        }

        /// <summary>
        /// Creates a <see cref="CloudPool"/> associated with the specified Batch account. If an existing pool with the
        /// specified ID is found, the pool is resized to match the specified node count.
        /// </summary>
        /// <param name="batchClient">A fully initialized <see cref="BatchClient"/>.</param>
        /// <param name="poolId">The ID of the <see cref="CloudPool"/>.</param>
        /// <param name="nodeSize">The size of the nodes within the pool.</param>
        /// <param name="nodeCount">The number of nodes to create within the pool.</param>
        /// <param name="maxTasksPerNode">The maximum number of tasks to run concurrently on each node.</param>
        /// <returns>A bound <see cref="CloudPool"/> with the specified properties.</returns>
        public async static Task<CloudPool> CreatePoolIfNotExistAsync(BatchClient batchClient, string poolId, string nodeSize, int nodeCount, int maxTasksPerNode)
        {
            // Create and configure an unbound pool with the specified ID
            CloudPool pool = batchClient.PoolOperations.CreatePool(poolId: poolId,
                                                                   osFamily: "3",
                                                                   virtualMachineSize: nodeSize,
                                                                   targetDedicated: nodeCount);
            
            pool.MaxTasksPerComputeNode = maxTasksPerNode;

            // We want each node to be completely filled with tasks (i.e. up to maxTasksPerNode) before
            // tasks are assigned to the next node in the pool
            pool.TaskSchedulingPolicy = new TaskSchedulingPolicy(ComputeNodeFillType.Pack);
            
            await GettingStartedCommon.CreatePoolIfNotExistAsync(batchClient, pool).ConfigureAwait(continueOnCapturedContext: false);

            return await batchClient.PoolOperations.GetPoolAsync(poolId).ConfigureAwait(continueOnCapturedContext: false);
        }

        static void AddTasks(BatchClient client)
        {
            CloudJob job = client.JobOperations.GetJob("testjob1");
            ResourceFile programFile = new ResourceFile(
                "https://mystorage00.blob.core.windows.net/testcon1/ProcessTaskData.exe",
                "ProcessTaskData.exe"
                );
            ResourceFile assemblyFile = new ResourceFile(
                  "https://mystorage00.blob.core.windows.net/testcon1/Microsoft.WindowsAzure.Storage.dll",
                  "Microsoft.WindowsAzure.Storage.dll"
                  );
            for (int i = 1; i < 4; ++i)
            {
                string blobName = "taskdata" + i;
                string taskName = "mytask" + i;
                ResourceFile taskData = new ResourceFile("https://mystorage00.blob.core.windows.net/testcon1/" +
                  blobName, blobName);
                CloudTask task = new CloudTask(
                    taskName,
                    "ProcessTaskData.exe https://mystorage00.blob.core.windows.net/testcon1/" +
                    blobName + " 3");
                List<ResourceFile> taskFiles = new List<ResourceFile>();
                taskFiles.Add(taskData);
                taskFiles.Add(programFile);
                taskFiles.Add(assemblyFile);
                task.ResourceFiles = taskFiles;
                job.AddTask(task);
                job.Commit();
                job.Refresh();
            }

            client.Utilities.CreateTaskStateMonitor().WaitAll(job.ListTasks(),
            TaskState.Completed, new TimeSpan(0, 30, 0));
            Console.WriteLine("The tasks completed successfully.");
            foreach (CloudTask task in job.ListTasks())
            {
                Console.WriteLine("Task " + task.Id + " says:\n" + task.GetNodeFile(Constants.StandardOutFileName).ReadAsString());
            }
            Console.WriteLine("Press Enter to continue.");
            Console.ReadLine();
        }

        private static void CreatePoolIfNeeded(BatchClient client, string poolId)
        {
            // go through all the pools and see if the specified pool already exists
            bool found = false;

            // use an OData based select clause to limit the amount of data returned. This will result in incomplete
            // client objects but reduces the amount of data on the wire leading to faster completion when there are
            // a lot of objects for a given query. No spaces are allowed in the string and property names are case-sensitive.
            foreach (CloudPool p in client.PoolOperations.ListPools(new ODATADetailLevel(selectClause: "id,currentDedicated")))
            {
                // pools are uniquely identified by their ID
                if (string.Equals(p.Id, poolId))
                {
                    Console.WriteLine("Using existing pool {0}", poolId);
                    found = true;

                    if (p.CurrentDedicated == 0)
                    {
                        Console.WriteLine("There are no compute nodes in this pool. No tasks will be run until at least one node has been added via resizing.");
                        Console.WriteLine("Resizing pool to add 3 nodes. This might take a while...");
                        p.Resize(3);
                    }

                    break;
                }
            }

            if (!found)
            {
                Console.WriteLine("Creating pool: {0}", poolId);
                // if pool not found, call CreatePool. You can learn more about os families and versions at:
                // https://azure.microsoft.com/en-us/documentation/articles/cloud-services-guestos-update-matrix/
                CloudPool pool = client.PoolOperations.CreatePool(poolId, targetDedicated: 3, virtualMachineSize: "small", osFamily: "3");
                pool.Commit();
            }
        }

        /// <summary>
        /// Prints task information to the console for each of the nodes in the specified pool.
        /// </summary>
        /// <param name="poolId">The ID of the <see cref="CloudPool"/> containing the nodes whose task information
        /// should be printed to the console.</param>
        private static void PrintNodeTasks(BatchClient batchClient, string poolId)
        {
            ODATADetailLevel nodeDetail = new ODATADetailLevel(selectClause: "id,recentTasks");

            // Obtain and print the task information for each of the compute nodes in the pool.
            foreach (ComputeNode node in batchClient.PoolOperations.ListComputeNodes(poolId, nodeDetail))
            {
                Console.WriteLine();
                Console.WriteLine(node.Id + " tasks:");

                if (node.RecentTasks != null && node.RecentTasks.Any())
                {
                    foreach (TaskInformation task in node.RecentTasks)
                    {
                        Console.WriteLine("\t{0}: {1}", task.TaskId, task.TaskState);
                    }
                }
                else
                {
                    // No tasks found for the node
                    Console.WriteLine("\tNone");
                }

            }
        }