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我試圖根據某些條件將相同的實例注入一些對象,並將另一個實例注入另一個對象列表。基於簡單注射器中的上下文注入相同的實例
interface IChannelContext
{
TransformManyBlock<byte[], Message> Decoder { get; }
IFilter Filter { get; }
}
interface IMsgSeqNumFilter
{
bool CheckMsgSeqNumGreater(byte[] buffer);
}
class ChannelContext : IChannelContext
{
public TransformManyBlock<byte[], Message> Decoder { get; }
public IMsgSeqNumFilter MsgSeqNumFilter { get; }
public ChannelContext(TransformManyBlock<byte[], Message> decoder, IMsgSeqNumFilter msgSeqNumFilter)
{
Decoder = decoder;
MsgSeqNumFilter = msgSeqNumFilter;
}
}
class MsgSeqNumFilter : IMsgSeqNumFilter
{
int maxMsgSeqNum = -1;
public bool CheckMsgSeqNumGreater(byte[] buffer)
{
return true;
}
}
所以我必須爲相同的解碼器實例注入相同的過濾器實例。對於不同的解碼器實例,應該注入不同的實例。
我該怎麼做?謝謝。
更新1根據Steven的評論的對象圖。不使用容器和接口。
class MsgSeqNumFilter
{
int maxMsgSeqNum = -1;
public bool CheckMsgSeqNumGreater(byte[] buffer)
{
return true;
}
}
class NetworkAddress
{
public string IP { get; }
public int Port { get; }
public NetworkAddress(string ip, int port)
{
IP = ip;
Port = port;
}
}
class ChannelContext
{
public NetworkAddress Address { get; }
public TransformManyBlock<byte[], Message> Decoder { get; }
public MsgSeqNumFilter MsgSeqNumFilter { get; }
public ChannelContext(NetworkAddress address, TransformManyBlock<byte[], Message> decoder, MsgSeqNumFilter msgSeqNumFilter)
{
Address = address;
Decoder = decoder;
MsgSeqNumFilter = msgSeqNumFilter;
}
}
class NetworkManager
{
CancellationToken parentToken;
public MulticastReceiveManager(IEnumerable<ChannelContext> channels, CancellationToken parentToken)
{
this.parentToken = parentToken;
foreach (var channelContext in channels) AddChannel(channelContext);
}
public void AddChannel(ChannelContext channelContext)
{
}
}
class PacketDecoder
{
public TransformManyBlock<byte[], Message> DecoderA { get; } = new TransformManyBlock<byte[], Message>();
public TransformManyBlock<byte[], Message> DecoderB { get; } = new TransformManyBlock<byte[], Message>();
}
class Program
{
static void Main(string[] args)
{
var parentTokenSource = new CancellationTokenSource();
NetworkAddress addrA1 = new NetworkAddress("1.1.1.1", 101);
NetworkAddress addrA2 = new NetworkAddress("1.1.1.2", 102);
MsgSeqNumFilter filterA = new MsgSeqNumFilter();
NetworkAddress addrB1 = new NetworkAddress("2.2.2.1", 201);
NetworkAddress addrB2 = new NetworkAddress("2.2.2.2", 202);
MsgSeqNumFilter filterB = new MsgSeqNumFilter();
var packetDecoder = new PacketDecoder();
var channels = new List<ChannelContext>();
channels.Add(new ChannelContext(addrA1, packetDecoder.DecoderA, filterA);
channels.Add(new ChannelContext(addrA2, packetDecoder.DecoderA, filterA);
channels.Add(new ChannelContext(addrB1, packetDecoder.DecoderB, filterB);
channels.Add(new ChannelContext(addrB2, packetDecoder.DecoderB, filterB);
var NetworkManager = new NetworkManager (channels, parentTokenSource.Token);
}
}
嘗試使用依賴注入? – mateudu
你如何創建ChannelContext實例? – lavrik
我不明白你想達到什麼目的。你能否更新你的問題並展示你的對象圖應該是什麼樣子的例子。或者實例,你可以通過顯示如何在沒有容器的情況下'new'圖表來實現這一點(例如,像[本博文]中的示例)(http://blog.ploeh.dk/2012/11/06/WhentouseaDIContainer /))。 – Steven