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| 1 | +using System; |
| 2 | +using System.Threading.Tasks; |
| 3 | + |
| 4 | +namespace StackExchange.Redis; |
| 5 | + |
| 6 | +internal partial class RedisDatabase |
| 7 | +{ |
| 8 | + public long StreamNegativeAcknowledge(RedisKey key, RedisValue groupName, RedisValue consumerName, StreamNackMode mode, RedisValue messageId, CommandFlags flags = CommandFlags.None) |
| 9 | + => ExecuteSync(GetStreamNegativeAcknowledgeMessage(key, groupName, consumerName, mode, messageId, flags), ResultProcessor.Int64); |
| 10 | + |
| 11 | + public Task<long> StreamNegativeAcknowledgeAsync(RedisKey key, RedisValue groupName, RedisValue consumerName, StreamNackMode mode, RedisValue messageId, CommandFlags flags = CommandFlags.None) |
| 12 | + => ExecuteAsync(GetStreamNegativeAcknowledgeMessage(key, groupName, consumerName, mode, messageId, flags), ResultProcessor.Int64); |
| 13 | + |
| 14 | + public long StreamNegativeAcknowledge(RedisKey key, RedisValue groupName, RedisValue consumerName, StreamNackMode mode, RedisValue[] messageIds, CommandFlags flags = CommandFlags.None) |
| 15 | + => ExecuteSync(GetStreamNegativeAcknowledgeMessage(key, groupName, consumerName, mode, messageIds, flags), ResultProcessor.Int64); |
| 16 | + |
| 17 | + public Task<long> StreamNegativeAcknowledgeAsync(RedisKey key, RedisValue groupName, RedisValue consumerName, StreamNackMode mode, RedisValue[] messageIds, CommandFlags flags = CommandFlags.None) |
| 18 | + => ExecuteAsync(GetStreamNegativeAcknowledgeMessage(key, groupName, consumerName, mode, messageIds, flags), ResultProcessor.Int64); |
| 19 | + |
| 20 | + private Message GetStreamNegativeAcknowledgeMessage(RedisKey key, RedisValue groupName, RedisValue consumerName, StreamNackMode mode, RedisValue messageId, CommandFlags flags) |
| 21 | + => new StreamNackMessageSingle(Database, flags, key, groupName, consumerName, mode, messageId); |
| 22 | + |
| 23 | + private Message GetStreamNegativeAcknowledgeMessage(RedisKey key, RedisValue groupName, RedisValue consumerName, StreamNackMode mode, RedisValue[] messageIds, CommandFlags flags) |
| 24 | + => messageIds is { Length: 1 } |
| 25 | + ? new StreamNackMessageSingle(Database, flags, key, groupName, consumerName, mode, messageIds[0]) |
| 26 | + : new StreamNackMessageMulti(Database, flags, key, groupName, consumerName, mode, messageIds); |
| 27 | + |
| 28 | + internal abstract class StreamNackMessageBase : Message.CommandKeyBase |
| 29 | + { |
| 30 | + private readonly RedisValue groupName; |
| 31 | + private readonly RedisValue consumerName; |
| 32 | + private readonly StreamNackMode mode; |
| 33 | + |
| 34 | + protected StreamNackMessageBase(int db, CommandFlags flags, in RedisKey key, in RedisValue groupName, in RedisValue consumerName, StreamNackMode mode) |
| 35 | + : base(db, flags, RedisCommand.XNACK, key) |
| 36 | + { |
| 37 | + groupName.AssertNotNull(); |
| 38 | + consumerName.AssertNotNull(); |
| 39 | + |
| 40 | + this.groupName = groupName; |
| 41 | + this.consumerName = consumerName; |
| 42 | + this.mode = mode; |
| 43 | + } |
| 44 | + |
| 45 | + protected abstract int Count { get; } |
| 46 | + |
| 47 | + protected abstract void WriteIds(PhysicalConnection physical); |
| 48 | + |
| 49 | + protected override void WriteImpl(PhysicalConnection physical) |
| 50 | + { |
| 51 | + physical.WriteHeader(Command, ArgCount); |
| 52 | + physical.Write(Key); |
| 53 | + physical.WriteBulkString(groupName); |
| 54 | + physical.WriteBulkString(consumerName); |
| 55 | + WriteMode(physical); |
| 56 | + physical.WriteBulkString(StreamConstants.Ids); |
| 57 | + physical.WriteBulkString(Count); |
| 58 | + WriteIds(physical); |
| 59 | + } |
| 60 | + |
| 61 | + private void WriteMode(PhysicalConnection physical) |
| 62 | + { |
| 63 | + switch (mode) |
| 64 | + { |
| 65 | + case StreamNackMode.Silent: |
| 66 | + physical.WriteBulkString("SILENT"u8); |
| 67 | + break; |
| 68 | + case StreamNackMode.Fail: |
| 69 | + physical.WriteBulkString("FAIL"u8); |
| 70 | + break; |
| 71 | + case StreamNackMode.Fatal: |
| 72 | + physical.WriteBulkString("FATAL"u8); |
| 73 | + break; |
| 74 | + default: |
| 75 | + throw new ArgumentOutOfRangeException(nameof(mode)); |
| 76 | + } |
| 77 | + } |
| 78 | + |
| 79 | + public override int ArgCount => 6 + Count; |
| 80 | + } |
| 81 | + |
| 82 | + internal sealed class StreamNackMessageSingle : StreamNackMessageBase |
| 83 | + { |
| 84 | + private readonly RedisValue messageId; |
| 85 | + |
| 86 | + public StreamNackMessageSingle(int db, CommandFlags flags, in RedisKey key, in RedisValue groupName, in RedisValue consumerName, StreamNackMode mode, in RedisValue messageId) |
| 87 | + : base(db, flags, key, groupName, consumerName, mode) |
| 88 | + { |
| 89 | + messageId.AssertNotNull(); |
| 90 | + this.messageId = messageId; |
| 91 | + } |
| 92 | + |
| 93 | + protected override int Count => 1; |
| 94 | + |
| 95 | + protected override void WriteIds(PhysicalConnection physical) => physical.WriteBulkString(messageId); |
| 96 | + } |
| 97 | + |
| 98 | + internal sealed class StreamNackMessageMulti : StreamNackMessageBase |
| 99 | + { |
| 100 | + private readonly RedisValue[] messageIds; |
| 101 | + |
| 102 | + public StreamNackMessageMulti(int db, CommandFlags flags, in RedisKey key, in RedisValue groupName, in RedisValue consumerName, StreamNackMode mode, RedisValue[] messageIds) |
| 103 | + : base(db, flags, key, groupName, consumerName, mode) |
| 104 | + { |
| 105 | +#if NET |
| 106 | + ArgumentNullException.ThrowIfNull(messageIds); |
| 107 | +#else |
| 108 | + if (messageIds == null) throw new ArgumentNullException(nameof(messageIds)); |
| 109 | +#endif |
| 110 | + if (messageIds.Length == 0) throw new ArgumentOutOfRangeException(nameof(messageIds), "messageIds must contain at least one item."); |
| 111 | + |
| 112 | + for (int i = 0; i < messageIds.Length; i++) |
| 113 | + { |
| 114 | + messageIds[i].AssertNotNull(); |
| 115 | + } |
| 116 | + |
| 117 | + this.messageIds = messageIds; |
| 118 | + } |
| 119 | + |
| 120 | + protected override int Count => messageIds.Length; |
| 121 | + |
| 122 | + protected override void WriteIds(PhysicalConnection physical) |
| 123 | + { |
| 124 | + for (int i = 0; i < messageIds.Length; i++) |
| 125 | + { |
| 126 | + physical.WriteBulkString(messageIds[i]); |
| 127 | + } |
| 128 | + } |
| 129 | + } |
| 130 | +} |
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