From 361da2cc03c0477e56f52664f82c67d408209935 Mon Sep 17 00:00:00 2001
From: Yelrose <270018958@qq.com>
Date: Thu, 6 Aug 2020 11:43:58 +0800
Subject: [PATCH] add partial node feature

---
 pgl/graph_wrapper.py | 49 +++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 44 insertions(+), 5 deletions(-)

diff --git a/pgl/graph_wrapper.py b/pgl/graph_wrapper.py
index 0d67fa6..58b6ff0 100644
--- a/pgl/graph_wrapper.py
+++ b/pgl/graph_wrapper.py
@@ -28,11 +28,21 @@ from pgl.utils.logger import log
 __all__ = ["BaseGraphWrapper", "GraphWrapper", "StaticGraphWrapper"]
 
 
-def send(src, dst, nfeat, efeat, message_func):
+def send(src, dst, nfeat, efeat, message_func, nfeat_src, nfeat_dst):
     """Send message from src to dst.
     """
-    src_feat = op.read_rows(nfeat, src)
-    dst_feat = op.read_rows(nfeat, dst)
+    for key in nfeat_src.keys():
+        if key in nfeat:
+            log.info("Node-Feature %s both in nfeat_src_list and nfeat_list" % key)
+
+    for key in nfeat_dst.keys():
+        if key in nfeat:
+            log.info("Node-Feature %s both in nfeat_dst_list and nfeat_list" % key)
+
+    nfeat_src.update(nfeat)
+    nfeat_dst.update(nfeat)
+    src_feat = op.read_rows(nfeat_src, src)
+    dst_feat = op.read_rows(nfeat_dst, dst)
     msg = message_func(src_feat, dst_feat, efeat)
     return msg
 
@@ -111,7 +121,7 @@ class BaseGraphWrapper(object):
     def __repr__(self):
         return self._data_name_prefix
 
-    def send(self, message_func, nfeat_list=None, efeat_list=None):
+    def send(self, message_func, nfeat_list=None, efeat_list=None, nfeat_list_src=None, nfeat_list_dst=None):
         """Send message from all src nodes to dst nodes.
 
         The UDF message function should has the following format.
@@ -136,6 +146,8 @@ class BaseGraphWrapper(object):
             message_func: UDF function.
             nfeat_list: a list of names or tuple (name, tensor)
             efeat_list: a list of names or tuple (name, tensor)
+            nfeat_list_src: a list of names or tuple (name, tensor). The node feature only for src
+            efeat_list_dst: a list of names or tuple (name, tensor). The node feature only for dst
 
         Return:
             A dictionary of tensor representing the message. Each of the values
@@ -144,11 +156,19 @@ class BaseGraphWrapper(object):
         """
         if efeat_list is None:
             efeat_list = {}
+
         if nfeat_list is None:
             nfeat_list = {}
 
+        if nfeat_list_src is None:
+            nfeat_list_src = {}
+
+        if nfeat_list_dst is None:
+            nfeat_list_dst = {}
+
         src, dst = self.edges
         nfeat = {}
+
         for feat in nfeat_list:
             if isinstance(feat, str):
                 nfeat[feat] = self.node_feat[feat]
@@ -156,6 +176,24 @@ class BaseGraphWrapper(object):
                 name, tensor = feat
                 nfeat[name] = tensor
 
+        nfeat_src = {}
+
+        for feat in nfeat_list_src:
+            if isinstance(feat, str):
+                nfeat_src[feat] = self.node_feat[feat]
+            else:
+                name, tensor = feat
+                nfeat_src[name] = tensor
+
+        nfeat_dst = {}
+
+        for feat in nfeat_list_dst:
+            if isinstance(feat, str):
+                nfeat_dst[feat] = self.node_feat[feat]
+            else:
+                name, tensor = feat
+                nfeat_dst[name] = tensor
+
         efeat = {}
         for feat in efeat_list:
             if isinstance(feat, str):
@@ -164,7 +202,8 @@ class BaseGraphWrapper(object):
                 name, tensor = feat
                 efeat[name] = tensor
 
-        msg = send(src, dst, nfeat, efeat, message_func)
+        msg = send(src, dst, nfeat, efeat, message_func,
+                      nfeat_src, nfeat_dst)
         return msg
 
     def recv(self, msg, reduce_function):
-- 
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