729 lines
27 KiB
C#
729 lines
27 KiB
C#
using MediaBrowser.Controller;
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using MediaBrowser.Controller.Sync;
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using MediaBrowser.Model.Dto;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.Querying;
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using MediaBrowser.Model.Serialization;
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using MediaBrowser.Model.Sync;
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using MediaBrowser.Server.Implementations.Persistence;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Server.Implementations.Sync
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{
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public class SyncRepository : ISyncRepository, IDisposable
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{
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private IDbConnection _connection;
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private readonly ILogger _logger;
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private readonly SemaphoreSlim _writeLock = new SemaphoreSlim(1, 1);
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private readonly IServerApplicationPaths _appPaths;
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private readonly CultureInfo _usCulture = new CultureInfo("en-US");
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private IDbCommand _deleteJobCommand;
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private IDbCommand _deleteJobItemsCommand;
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private IDbCommand _saveJobCommand;
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private IDbCommand _saveJobItemCommand;
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private readonly IJsonSerializer _json;
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public SyncRepository(ILogger logger, IServerApplicationPaths appPaths, IJsonSerializer json)
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{
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_logger = logger;
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_appPaths = appPaths;
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_json = json;
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}
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public async Task Initialize()
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{
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var dbFile = Path.Combine(_appPaths.DataPath, "sync14.db");
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_connection = await SqliteExtensions.ConnectToDb(dbFile, _logger).ConfigureAwait(false);
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string[] queries = {
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"create table if not exists SyncJobs (Id GUID PRIMARY KEY, TargetId TEXT NOT NULL, Name TEXT NOT NULL, Quality TEXT NOT NULL, Status TEXT NOT NULL, Progress FLOAT, UserId TEXT NOT NULL, ItemIds TEXT NOT NULL, Category TEXT, ParentId TEXT, UnwatchedOnly BIT, ItemLimit INT, SyncNewContent BIT, DateCreated DateTime, DateLastModified DateTime, ItemCount int)",
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"create index if not exists idx_SyncJobs on SyncJobs(Id)",
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"create table if not exists SyncJobItems (Id GUID PRIMARY KEY, ItemId TEXT, ItemName TEXT, MediaSourceId TEXT, JobId TEXT, TemporaryPath TEXT, OutputPath TEXT, Status TEXT, TargetId TEXT, DateCreated DateTime, Progress FLOAT, AdditionalFiles TEXT, MediaSource TEXT, IsMarkedForRemoval BIT, JobItemIndex INT)",
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"create index if not exists idx_SyncJobItems on SyncJobs(Id)",
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//pragmas
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"pragma temp_store = memory",
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"pragma shrink_memory"
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};
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_connection.RunQueries(queries, _logger);
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PrepareStatements();
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}
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private void PrepareStatements()
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{
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_deleteJobCommand = _connection.CreateCommand();
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_deleteJobCommand.CommandText = "delete from SyncJobs where Id=@Id";
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_deleteJobCommand.Parameters.Add(_deleteJobCommand, "@Id");
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_deleteJobItemsCommand = _connection.CreateCommand();
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_deleteJobItemsCommand.CommandText = "delete from SyncJobItems where JobId=@JobId";
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_deleteJobItemsCommand.Parameters.Add(_deleteJobItemsCommand, "@JobId");
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_saveJobCommand = _connection.CreateCommand();
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_saveJobCommand.CommandText = "replace into SyncJobs (Id, TargetId, Name, Quality, Status, Progress, UserId, ItemIds, Category, ParentId, UnwatchedOnly, ItemLimit, SyncNewContent, DateCreated, DateLastModified, ItemCount) values (@Id, @TargetId, @Name, @Quality, @Status, @Progress, @UserId, @ItemIds, @Category, @ParentId, @UnwatchedOnly, @ItemLimit, @SyncNewContent, @DateCreated, @DateLastModified, @ItemCount)";
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@Id");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@TargetId");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@Name");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@Quality");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@Status");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@Progress");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@UserId");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@ItemIds");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@Category");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@ParentId");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@UnwatchedOnly");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@ItemLimit");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@SyncNewContent");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@DateCreated");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@DateLastModified");
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_saveJobCommand.Parameters.Add(_saveJobCommand, "@ItemCount");
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_saveJobItemCommand = _connection.CreateCommand();
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_saveJobItemCommand.CommandText = "replace into SyncJobItems (Id, ItemId, ItemName, MediaSourceId, JobId, TemporaryPath, OutputPath, Status, TargetId, DateCreated, Progress, AdditionalFiles, MediaSource, IsMarkedForRemoval, JobItemIndex) values (@Id, @ItemId, @ItemName, @MediaSourceId, @JobId, @TemporaryPath, @OutputPath, @Status, @TargetId, @DateCreated, @Progress, @AdditionalFiles, @MediaSource, @IsMarkedForRemoval, @JobItemIndex)";
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@Id");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@ItemId");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@ItemName");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@MediaSourceId");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@JobId");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@TemporaryPath");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@OutputPath");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@Status");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@TargetId");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@DateCreated");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@Progress");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@AdditionalFiles");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@MediaSource");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@IsMarkedForRemoval");
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_saveJobItemCommand.Parameters.Add(_saveJobItemCommand, "@JobItemIndex");
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}
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private const string BaseJobSelectText = "select Id, TargetId, Name, Quality, Status, Progress, UserId, ItemIds, Category, ParentId, UnwatchedOnly, ItemLimit, SyncNewContent, DateCreated, DateLastModified, ItemCount from SyncJobs";
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private const string BaseJobItemSelectText = "select Id, ItemId, ItemName, MediaSourceId, JobId, TemporaryPath, OutputPath, Status, TargetId, DateCreated, Progress, AdditionalFiles, MediaSource, IsMarkedForRemoval, JobItemIndex from SyncJobItems";
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public SyncJob GetJob(string id)
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{
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if (string.IsNullOrEmpty(id))
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{
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throw new ArgumentNullException("id");
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}
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var guid = new Guid(id);
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if (guid == Guid.Empty)
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{
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throw new ArgumentNullException("id");
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}
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using (var cmd = _connection.CreateCommand())
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{
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cmd.CommandText = BaseJobSelectText + " where Id=@Id";
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cmd.Parameters.Add(cmd, "@Id", DbType.Guid).Value = guid;
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using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult | CommandBehavior.SingleRow))
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{
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if (reader.Read())
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{
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return GetJob(reader);
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}
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}
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}
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return null;
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}
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private SyncJob GetJob(IDataReader reader)
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{
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var info = new SyncJob
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{
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Id = reader.GetGuid(0).ToString("N"),
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TargetId = reader.GetString(1),
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Name = reader.GetString(2)
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};
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if (!reader.IsDBNull(3))
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{
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info.Quality = (SyncQuality)Enum.Parse(typeof(SyncQuality), reader.GetString(3), true);
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}
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if (!reader.IsDBNull(4))
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{
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info.Status = (SyncJobStatus)Enum.Parse(typeof(SyncJobStatus), reader.GetString(4), true);
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}
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if (!reader.IsDBNull(5))
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{
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info.Progress = reader.GetDouble(5);
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}
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if (!reader.IsDBNull(6))
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{
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info.UserId = reader.GetString(6);
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}
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if (!reader.IsDBNull(7))
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{
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info.RequestedItemIds = reader.GetString(7).Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries).ToList();
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}
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if (!reader.IsDBNull(8))
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{
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info.Category = (SyncCategory)Enum.Parse(typeof(SyncCategory), reader.GetString(8), true);
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}
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if (!reader.IsDBNull(9))
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{
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info.ParentId = reader.GetString(9);
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}
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if (!reader.IsDBNull(10))
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{
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info.UnwatchedOnly = reader.GetBoolean(10);
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}
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if (!reader.IsDBNull(11))
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{
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info.ItemLimit = reader.GetInt32(11);
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}
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info.SyncNewContent = reader.GetBoolean(12);
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info.DateCreated = reader.GetDateTime(13).ToUniversalTime();
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info.DateLastModified = reader.GetDateTime(14).ToUniversalTime();
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info.ItemCount = reader.GetInt32(15);
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return info;
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}
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public Task Create(SyncJob job)
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{
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return Update(job);
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}
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public async Task Update(SyncJob job)
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{
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if (job == null)
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{
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throw new ArgumentNullException("job");
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}
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await _writeLock.WaitAsync().ConfigureAwait(false);
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IDbTransaction transaction = null;
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try
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{
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transaction = _connection.BeginTransaction();
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var index = 0;
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_saveJobCommand.GetParameter(index++).Value = new Guid(job.Id);
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_saveJobCommand.GetParameter(index++).Value = job.TargetId;
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_saveJobCommand.GetParameter(index++).Value = job.Name;
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_saveJobCommand.GetParameter(index++).Value = job.Quality;
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_saveJobCommand.GetParameter(index++).Value = job.Status.ToString();
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_saveJobCommand.GetParameter(index++).Value = job.Progress;
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_saveJobCommand.GetParameter(index++).Value = job.UserId;
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_saveJobCommand.GetParameter(index++).Value = string.Join(",", job.RequestedItemIds.ToArray());
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_saveJobCommand.GetParameter(index++).Value = job.Category;
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_saveJobCommand.GetParameter(index++).Value = job.ParentId;
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_saveJobCommand.GetParameter(index++).Value = job.UnwatchedOnly;
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_saveJobCommand.GetParameter(index++).Value = job.ItemLimit;
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_saveJobCommand.GetParameter(index++).Value = job.SyncNewContent;
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_saveJobCommand.GetParameter(index++).Value = job.DateCreated;
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_saveJobCommand.GetParameter(index++).Value = job.DateLastModified;
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_saveJobCommand.GetParameter(index++).Value = job.ItemCount;
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_saveJobCommand.Transaction = transaction;
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_saveJobCommand.ExecuteNonQuery();
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transaction.Commit();
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}
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catch (OperationCanceledException)
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{
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if (transaction != null)
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{
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transaction.Rollback();
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}
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throw;
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}
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catch (Exception e)
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{
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_logger.ErrorException("Failed to save record:", e);
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if (transaction != null)
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{
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transaction.Rollback();
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}
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throw;
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}
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finally
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{
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if (transaction != null)
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{
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transaction.Dispose();
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}
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_writeLock.Release();
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}
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}
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public async Task DeleteJob(string id)
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{
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if (string.IsNullOrWhiteSpace(id))
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{
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throw new ArgumentNullException("id");
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}
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await _writeLock.WaitAsync().ConfigureAwait(false);
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IDbTransaction transaction = null;
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try
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{
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transaction = _connection.BeginTransaction();
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var index = 0;
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_deleteJobCommand.GetParameter(index++).Value = new Guid(id);
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_deleteJobCommand.Transaction = transaction;
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_deleteJobCommand.ExecuteNonQuery();
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index = 0;
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_deleteJobItemsCommand.GetParameter(index++).Value = id;
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_deleteJobItemsCommand.Transaction = transaction;
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_deleteJobItemsCommand.ExecuteNonQuery();
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transaction.Commit();
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}
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catch (OperationCanceledException)
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{
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if (transaction != null)
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{
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transaction.Rollback();
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}
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throw;
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}
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catch (Exception e)
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{
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_logger.ErrorException("Failed to save record:", e);
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if (transaction != null)
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{
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transaction.Rollback();
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}
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throw;
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}
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finally
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{
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if (transaction != null)
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{
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transaction.Dispose();
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}
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_writeLock.Release();
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}
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}
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public QueryResult<SyncJob> GetJobs(SyncJobQuery query)
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{
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if (query == null)
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{
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throw new ArgumentNullException("query");
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}
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using (var cmd = _connection.CreateCommand())
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{
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cmd.CommandText = BaseJobSelectText;
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var whereClauses = new List<string>();
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if (query.IsCompleted.HasValue)
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{
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if (query.IsCompleted.Value)
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{
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whereClauses.Add("Status=@Status");
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}
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else
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{
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whereClauses.Add("Status<>@Status");
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}
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cmd.Parameters.Add(cmd, "@Status", DbType.String).Value = SyncJobStatus.Completed.ToString();
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}
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if (!string.IsNullOrWhiteSpace(query.TargetId))
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{
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whereClauses.Add("TargetId=@TargetId");
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cmd.Parameters.Add(cmd, "@TargetId", DbType.String).Value = query.TargetId;
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}
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if (!string.IsNullOrWhiteSpace(query.UserId))
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{
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whereClauses.Add("UserId=@UserId");
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cmd.Parameters.Add(cmd, "@UserId", DbType.String).Value = query.UserId;
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}
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var whereTextWithoutPaging = whereClauses.Count == 0 ?
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string.Empty :
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" where " + string.Join(" AND ", whereClauses.ToArray());
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var startIndex = query.StartIndex ?? 0;
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if (startIndex > 0)
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{
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whereClauses.Add(string.Format("Id NOT IN (SELECT Id FROM SyncJobs ORDER BY DateLastModified DESC LIMIT {0})",
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startIndex.ToString(_usCulture)));
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}
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if (whereClauses.Count > 0)
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{
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cmd.CommandText += " where " + string.Join(" AND ", whereClauses.ToArray());
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}
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cmd.CommandText += " ORDER BY DateLastModified DESC";
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if (query.Limit.HasValue)
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{
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cmd.CommandText += " LIMIT " + query.Limit.Value.ToString(_usCulture);
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}
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cmd.CommandText += "; select count (Id) from SyncJobs" + whereTextWithoutPaging;
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var list = new List<SyncJob>();
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var count = 0;
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using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess))
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{
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while (reader.Read())
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{
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list.Add(GetJob(reader));
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}
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if (reader.NextResult() && reader.Read())
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{
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count = reader.GetInt32(0);
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}
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}
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return new QueryResult<SyncJob>()
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{
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Items = list.ToArray(),
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TotalRecordCount = count
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};
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}
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}
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public SyncJobItem GetJobItem(string id)
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{
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if (string.IsNullOrEmpty(id))
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{
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throw new ArgumentNullException("id");
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}
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var guid = new Guid(id);
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using (var cmd = _connection.CreateCommand())
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{
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cmd.CommandText = BaseJobItemSelectText + " where Id=@Id";
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cmd.Parameters.Add(cmd, "@Id", DbType.Guid).Value = guid;
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using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult | CommandBehavior.SingleRow))
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{
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if (reader.Read())
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{
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return GetJobItem(reader);
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}
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}
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}
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return null;
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}
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public QueryResult<SyncJobItem> GetJobItems(SyncJobItemQuery query)
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{
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if (query == null)
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{
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throw new ArgumentNullException("query");
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}
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using (var cmd = _connection.CreateCommand())
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{
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cmd.CommandText = BaseJobItemSelectText;
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var whereClauses = new List<string>();
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if (!string.IsNullOrWhiteSpace(query.JobId))
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{
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whereClauses.Add("JobId=@JobId");
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cmd.Parameters.Add(cmd, "@JobId", DbType.String).Value = query.JobId;
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}
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if (!string.IsNullOrWhiteSpace(query.TargetId))
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{
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whereClauses.Add("TargetId=@TargetId");
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cmd.Parameters.Add(cmd, "@TargetId", DbType.String).Value = query.TargetId;
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}
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if (query.Statuses.Count > 0)
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{
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var statuses = string.Join(",", query.Statuses.Select(i => "'" + i.ToString() + "'").ToArray());
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whereClauses.Add(string.Format("Status in ({0})", statuses));
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}
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var whereTextWithoutPaging = whereClauses.Count == 0 ?
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string.Empty :
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" where " + string.Join(" AND ", whereClauses.ToArray());
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var startIndex = query.StartIndex ?? 0;
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if (startIndex > 0)
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{
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whereClauses.Add(string.Format("Id NOT IN (SELECT Id FROM SyncJobItems ORDER BY JobItemIndex, DateCreated LIMIT {0})",
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startIndex.ToString(_usCulture)));
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}
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if (whereClauses.Count > 0)
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{
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cmd.CommandText += " where " + string.Join(" AND ", whereClauses.ToArray());
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}
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cmd.CommandText += " ORDER BY JobItemIndex, DateCreated";
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if (query.Limit.HasValue)
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{
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cmd.CommandText += " LIMIT " + query.Limit.Value.ToString(_usCulture);
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}
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cmd.CommandText += "; select count (Id) from SyncJobItems" + whereTextWithoutPaging;
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var list = new List<SyncJobItem>();
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var count = 0;
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using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess))
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{
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while (reader.Read())
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{
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list.Add(GetJobItem(reader));
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}
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|
if (reader.NextResult() && reader.Read())
|
|
{
|
|
count = reader.GetInt32(0);
|
|
}
|
|
}
|
|
|
|
return new QueryResult<SyncJobItem>()
|
|
{
|
|
Items = list.ToArray(),
|
|
TotalRecordCount = count
|
|
};
|
|
}
|
|
}
|
|
|
|
public Task Create(SyncJobItem jobItem)
|
|
{
|
|
return Update(jobItem);
|
|
}
|
|
|
|
public async Task Update(SyncJobItem jobItem)
|
|
{
|
|
if (jobItem == null)
|
|
{
|
|
throw new ArgumentNullException("jobItem");
|
|
}
|
|
|
|
await _writeLock.WaitAsync().ConfigureAwait(false);
|
|
|
|
IDbTransaction transaction = null;
|
|
|
|
try
|
|
{
|
|
transaction = _connection.BeginTransaction();
|
|
|
|
var index = 0;
|
|
|
|
_saveJobItemCommand.GetParameter(index++).Value = new Guid(jobItem.Id);
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.ItemId;
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.ItemName;
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.MediaSourceId;
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.JobId;
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.TemporaryPath;
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.OutputPath;
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.Status.ToString();
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.TargetId;
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.DateCreated;
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.Progress;
|
|
_saveJobItemCommand.GetParameter(index++).Value = _json.SerializeToString(jobItem.AdditionalFiles);
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.MediaSource == null ? null : _json.SerializeToString(jobItem.MediaSource);
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.IsMarkedForRemoval;
|
|
_saveJobItemCommand.GetParameter(index++).Value = jobItem.JobItemIndex;
|
|
|
|
_saveJobItemCommand.Transaction = transaction;
|
|
|
|
_saveJobItemCommand.ExecuteNonQuery();
|
|
|
|
transaction.Commit();
|
|
}
|
|
catch (OperationCanceledException)
|
|
{
|
|
if (transaction != null)
|
|
{
|
|
transaction.Rollback();
|
|
}
|
|
|
|
throw;
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
_logger.ErrorException("Failed to save record:", e);
|
|
|
|
if (transaction != null)
|
|
{
|
|
transaction.Rollback();
|
|
}
|
|
|
|
throw;
|
|
}
|
|
finally
|
|
{
|
|
if (transaction != null)
|
|
{
|
|
transaction.Dispose();
|
|
}
|
|
|
|
_writeLock.Release();
|
|
}
|
|
}
|
|
|
|
private SyncJobItem GetJobItem(IDataReader reader)
|
|
{
|
|
var info = new SyncJobItem
|
|
{
|
|
Id = reader.GetGuid(0).ToString("N"),
|
|
ItemId = reader.GetString(1)
|
|
};
|
|
|
|
if (!reader.IsDBNull(2))
|
|
{
|
|
info.ItemName = reader.GetString(2);
|
|
}
|
|
|
|
if (!reader.IsDBNull(3))
|
|
{
|
|
info.MediaSourceId = reader.GetString(3);
|
|
}
|
|
|
|
info.JobId = reader.GetString(4);
|
|
|
|
if (!reader.IsDBNull(5))
|
|
{
|
|
info.TemporaryPath = reader.GetString(5);
|
|
}
|
|
if (!reader.IsDBNull(6))
|
|
{
|
|
info.OutputPath = reader.GetString(6);
|
|
}
|
|
|
|
if (!reader.IsDBNull(7))
|
|
{
|
|
info.Status = (SyncJobItemStatus)Enum.Parse(typeof(SyncJobItemStatus), reader.GetString(7), true);
|
|
}
|
|
|
|
info.TargetId = reader.GetString(8);
|
|
|
|
info.DateCreated = reader.GetDateTime(9).ToUniversalTime();
|
|
|
|
if (!reader.IsDBNull(10))
|
|
{
|
|
info.Progress = reader.GetDouble(10);
|
|
}
|
|
|
|
if (!reader.IsDBNull(11))
|
|
{
|
|
var json = reader.GetString(11);
|
|
|
|
if (!string.IsNullOrWhiteSpace(json))
|
|
{
|
|
info.AdditionalFiles = _json.DeserializeFromString<List<ItemFileInfo>>(json);
|
|
}
|
|
}
|
|
|
|
if (!reader.IsDBNull(12))
|
|
{
|
|
var json = reader.GetString(12);
|
|
|
|
if (!string.IsNullOrWhiteSpace(json))
|
|
{
|
|
info.MediaSource = _json.DeserializeFromString<MediaSourceInfo>(json);
|
|
}
|
|
}
|
|
|
|
info.IsMarkedForRemoval = reader.GetBoolean(13);
|
|
info.JobItemIndex = reader.GetInt32(14);
|
|
|
|
return info;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
|
|
/// </summary>
|
|
public void Dispose()
|
|
{
|
|
Dispose(true);
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
|
|
private readonly object _disposeLock = new object();
|
|
|
|
/// <summary>
|
|
/// Releases unmanaged and - optionally - managed resources.
|
|
/// </summary>
|
|
/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
|
|
protected virtual void Dispose(bool dispose)
|
|
{
|
|
if (dispose)
|
|
{
|
|
try
|
|
{
|
|
lock (_disposeLock)
|
|
{
|
|
if (_connection != null)
|
|
{
|
|
if (_connection.IsOpen())
|
|
{
|
|
_connection.Close();
|
|
}
|
|
|
|
_connection.Dispose();
|
|
_connection = null;
|
|
}
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
_logger.ErrorException("Error disposing database", ex);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|