net/docs/url_request.dot

   1 digraph URLRequestRoot {
   2     subgraph cluster_legend {
   3         label="Legend";
   4
   5         ## The following legend is an attempt to match UML notation,
   6         ## except for template_class and Factory->object, which are
   7         ## invented for this diagram.
   8         BaseClass;
   9         SubClass [label="Derived Class"];
  10         Whole;
  11         Part;
  12         A;
  13         B;
  14         Interface [label="Interface / ABC", style=dashed];
  15         template_class [shape=diamond]; # Link will name parameter(s)
  16
  17         SubClass -> BaseClass [arrowhead="empty"];
  18         SubClass -> Interface [arrowhead="empty", style=dashed];
  19         Part -> Whole [arrowhead="diamond", label="ownership"];
  20         Part -> Whole [arrowhead="odiamond", label="pointer"];
  21         A -> B [arrowhead="none", headlabel="?..?", taillabel="?..?",
  22                 label="association"];
  23         // Often a "subgraph { rank=same; .. }" is used to wrap the
  24         // below to make the generative relationship distinctive
  25         // from the other class relationships.
  26         Factory -> object [arrowhead=veevee];
  27     };
  28
  29     ## URLRequest, URLRequestJob, and subclasses
  30     URLRequestContext;
  31     URLRequest;
  32     URLRequestJob [style=dashed];
  33     URLRequestJob_Others [label="...other job types..."];
  34     URLRequestHttpJob;
  35     Filter;
  36
  37     {URLRequestHttpJob, URLRequestJob_Others} -> URLRequestJob
  38         [arrowhead="empty"];
  39
  40     URLRequestJob -> URLRequest [arrowhead="diamond"];
  41     Filter -> URLRequestJob [arrowhead="diamond"];
  42     Filter -> Filter [arrowhead="diamond", taillabel="0..1"];
  43
  44     subgraph {
  45         rank=same;
  46         URLRequestContext -> URLRequest [arrowhead=veevee];
  47     }
  48     subgraph {
  49         rank=same;
  50         URLRequestHttpJob -> Filter [arrowhead=veevee];
  51     }
  52
  53
  54     ## HttpTransaction, subclasses, and generative classes.
  55     HttpTransactionFactory [style=dashed];
  56     HttpCache;
  57     HttpNetworkLayer;
  58     HttpTransaction [style=dashed];
  59     HttpCache_Transaction [label="HttpCache::Transaction"];
  60     HttpNetworkTransaction;
  61
  62     { HttpNetworkTransaction, HttpCache_Transaction } -> HttpTransaction
  63         [style=dashed, arrowhead="empty"];
  64     { HttpNetworkLayer, HttpCache } -> HttpTransactionFactory
  65         [arrowhead=empty, style=dashed];
  66
  67     HttpTransaction -> HttpCache_Transaction  [arrowhead=diamond];
  68     HttpTransaction -> URLRequestHttpJob [arrowhead="diamond"]
  69
  70     subgraph {
  71         rank=same;
  72         HttpCache -> HttpCache_Transaction [arrowhead=veevee];
  73     }
  74     subgraph {
  75         rank=same;
  76         HttpTransactionFactory -> HttpTransaction [arrowhead=veevee];
  77     }
  78     subgraph {
  79         rank=same;
  80         HttpNetworkLayer -> HttpNetworkTransaction [arrowhead=veevee];
  81     }
  82
  83     ## HttpStreamFactory and related.
  84     HttpStreamFactory;
  85     HttpStreamRequest;
  86     HttpStream [style=dashed];
  87     HttpStreamFactory_Job [label="HttpStreamFactory::Job"];
  88     HttpStreamRequest_Delegate
  89         [label="HttpStreamRequest::Delegate",style=dashed];
  90     HttpBasicStream;
  91     QuicHttpStream;
  92     SpdyHttpStream;
  93     HttpBasicState;
  94
  95     HttpNetworkTransaction -> HttpStreamRequest_Delegate
  96         [style=dashed, arrowhead="empty"];
  97     { HttpBasicStream, QuicHttpStream, SpdyHttpStream } -> HttpStream
  98         [style=dashed, arrowhead="empty"];
  99
 100     HttpStreamRequest -> HttpNetworkTransaction [arrowhead="diamond"];
 101     HttpStream -> HttpNetworkTransaction [arrowhead="diamond"];
 102     HttpBasicState -> HttpBasicStream [arrowhead=diamond];
 103     HttpStreamFactory_Job -> HttpStreamRequest
 104         [arrowhead="diamond",taillabel="1..*"];
 105
 106     HttpStreamRequest_Delegate -> HttpStreamRequest
 107         [arrowhead=odiamond];
 108     HttpStreamFactory_Job -> HttpStreamFactory_Job
 109         [arrowhead=odiamond, label="blocking_job_\nwaiting_job_"];
 110
 111     subgraph {
 112         rank=same;
 113         HttpStreamFactory -> HttpStreamRequest [arrowhead=veevee];
 114     }
 115     subgraph {
 116         rank=same;
 117         HttpStreamRequest -> HttpStream [arrowhead=veevee];
 118     }
 119
 120     ## ClientSocketHandle and socket pools.
 121     ClientSocketPool [style=dashed];
 122     TransportClientSocketPool;
 123     SSLClientSocketPool;
 124     ClientSocketPool_Others [label="...others..."];
 125     ClientSocketPoolBase [label="ClientSocketPoolBase", shape=diamond];
 126     ClientSocketPoolBaseHelper;
 127
 128     ConnectJobFactory;
 129     ConnectJob [style=dashed];
 130     TransportConnectJob;
 131     SSLConnectJob;
 132     ConnectJob_Others [label="...other connect job types..."];
 133     ConnectJob_Delegate [label="ConnectJob::Delegate",style=dashed];
 134
 135     StreamSocket [style=dashed];
 136     TCPClientSocket;
 137     StreamSocket_Others [label="...other socket types..."];
 138
 139     TransportConnectJobHelper;
 140     SingleRequestHostResolver;
 141
 142     { SSLClientSocketPool, TransportClientSocketPool,
 143       ClientSocketPool_Others} -> ClientSocketPool
 144         [style=dashed, arrowhead=empty];
 145     ClientSocketPoolBaseHelper -> ConnectJob_Delegate
 146         [arrowhead=empty, style=dashed];
 147     StreamSocket -> Socket [arrowhead=empty, style=dashed];
 148     { TCPClientSocket, StreamSocket_Others } -> StreamSocket
 149         [arrowhead=empty, style=dashed];
 150     {SSLConnectJob, TransportConnectJob, ConnectJob_Others} -> ConnectJob
 151         [style=dashed, arrowhead=empty];
 152
 153     ClientSocketHandle -> HttpStreamFactory_Job [arrowhead="diamond"];
 154     ClientSocketHandle -> HttpBasicState [arrowhead="diamond"];
 155     ClientSocketPoolBaseHelper -> ClientSocketPoolBase [arrowhead=diamond];
 156     ClientSocketPoolBase -> TransportClientSocketPool
 157         [arrowhead=diamond, label=TransportSocketParams];
 158     ClientSocketPoolBase -> SSLClientSocketPool
 159         [arrowhead=diamond, label=SSLSocketParams];
 160
 161     StreamSocket -> ClientSocketHandle [arrowhead=diamond];
 162     ConnectJobFactory -> ClientSocketPoolBase [arrowhead=diamond];
 163     StreamSocket -> ConnectJob [arrowhead=diamond];
 164     SingleRequestHostResolver -> TransportConnectJobHelper
 165         [arrowhead=diamond];
 166     TransportConnectJobHelper -> TransportConnectJob [arrowhead=diamond];
 167
 168     ClientSocketPool -> ClientSocketHandle  [arrowhead=odiamond];
 169     ConnectJob_Delegate -> ConnectJob  [arrowhead=odiamond];
 170
 171     subgraph {
 172         rank=same;
 173         ConnectJobFactory -> ConnectJob [arrowhead=veevee];
 174     }
 175     subgraph {
 176         rank=same;
 177         HttpStreamFactory_Job -> ClientSocketHandle [arrowhead=veevee];
 178     }
 179     subgraph {
 180         rank=same;
 181         TransportConnectJob -> StreamSocket [arrowhead=veevee];
 182     }
 183 }