// Lists the node files under a task.
        private IEnumerable <PSNodeFile> ListNodeFilesByTask(ListNodeFileOptions options)
        {
            // Get the single node file matching the specified name
            if (!string.IsNullOrEmpty(options.NodeFileName))
            {
                WriteVerbose(string.Format(Resources.GetNodeFileByTaskByName, options.NodeFileName, options.TaskId));
                JobOperations jobOperations = options.Context.BatchOMClient.JobOperations;
                NodeFile      nodeFile      = jobOperations.GetNodeFile(options.JobId, options.TaskId, options.NodeFileName, options.AdditionalBehaviors);
                PSNodeFile    psNodeFile    = new PSNodeFile(nodeFile);
                return(new PSNodeFile[] { psNodeFile });
            }
            // List node files using the specified filter
            else
            {
                string           taskId           = options.Task == null ? options.TaskId : options.Task.Id;
                ODATADetailLevel odata            = null;
                string           verboseLogString = null;
                if (!string.IsNullOrEmpty(options.Filter))
                {
                    verboseLogString = string.Format(Resources.GetNodeFileByTaskByOData, taskId);
                    odata            = new ODATADetailLevel(filterClause: options.Filter);
                }
                else
                {
                    verboseLogString = string.Format(Resources.GetNodeFileByTaskNoFilter, taskId);
                }
                WriteVerbose(verboseLogString);

                IPagedEnumerable <NodeFile> nodeFiles = null;
                if (options.Task != null)
                {
                    nodeFiles = options.Task.omObject.ListNodeFiles(options.Recursive, odata, options.AdditionalBehaviors);
                }
                else
                {
                    JobOperations jobOperations = options.Context.BatchOMClient.JobOperations;
                    nodeFiles = jobOperations.ListNodeFiles(options.JobId, options.TaskId, options.Recursive, odata, options.AdditionalBehaviors);
                }
                Func <NodeFile, PSNodeFile> mappingFunction = f => { return(new PSNodeFile(f)); };
                return(PSPagedEnumerable <PSNodeFile, NodeFile> .CreateWithMaxCount(
                           nodeFiles, mappingFunction, options.MaxCount, () => WriteVerbose(string.Format(Resources.MaxCount, options.MaxCount))));
            }
        }