我正在尝试从RESTAPI调用创建节点和边的简单图。。。到目前为止,我们已经能够获取节点,将其作为json转储并发送到d3进行可视化。 这里的问题是我无法绘制边或链接。下面给我一个错误
e = (link['link']['destination']['node']['node-id'], link['link']['source']['node']['node-id'])
TypeError: 'int' object has no attribute '__getitem__'
这是来自ODL REST API的节点和链接调用的详细信息
Nodes List:
Node ID - openflow:1
Node ID - host:00:00:00:00:00:01
Node ID - openflow:2
Node ID - host:00:00:00:00:00:02
Links List:
Link ID - host:00:00:00:00:00:01/openflow:1:1
Link ID - openflow:2:1/host:00:00:00:00:00:02
Link ID - openflow:1:2
Link ID - openflow:2:2
Link ID - openflow:1:1/host:00:00:00:00:00:01
Link ID - host:00:00:00:00:00:02/openflow:2:1
这是来自API的详细信息调用
{
u'network-topology': {
u'topology': [
{
u'node': [
{
u'opendaylight-topology-inventory:inventory-node-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:1']",
u'node-id': u'openflow:1',
u'termination-point': [
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:1']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:1:2']",
u'tp-id': u'openflow:1:2'
},
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:1']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:1:1']",
u'tp-id': u'openflow:1:1'
},
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:1']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:1:LOCAL']",
u'tp-id': u'openflow:1:LOCAL'
}
]
},
{
u'host-tracker-service:addresses': [
{
u'first-seen': 1562655393902,
u'ip': u'10.0.0.1',
u'mac': u'00:00:00:00:00:01',
u'id': 6,
u'last-seen': 1562655393902
}
],
u'host-tracker-service:id': u'00:00:00:00:00:01',
u'host-tracker-service:attachment-points': [
{
u'active': True,
u'corresponding-tp': u'host:00:00:00:00:00:01',
u'tp-id': u'openflow:1:1'
}
],
u'node-id': u'host:00:00:00:00:00:01',
u'termination-point': [
{
u'tp-id': u'host:00:00:00:00:00:01'
}
]
},
{
u'opendaylight-topology-inventory:inventory-node-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:2']",
u'node-id': u'openflow:2',
u'termination-point': [
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:2']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:2:LOCAL']",
u'tp-id': u'openflow:2:LOCAL'
},
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:2']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:2:1']",
u'tp-id': u'openflow:2:1'
},
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:2']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:2:2']",
u'tp-id': u'openflow:2:2'
}
]
},
{
u'host-tracker-service:addresses': [
{
u'first-seen': 1562655393906,
u'ip': u'10.0.0.2',
u'mac': u'00:00:00:00:00:02',
u'id': 7,
u'last-seen': 1562655393906
}
],
u'host-tracker-service:id': u'00:00:00:00:00:02',
u'host-tracker-service:attachment-points': [
{
u'active': True,
u'corresponding-tp': u'host:00:00:00:00:00:02',
u'tp-id': u'openflow:2:1'
}
],
u'node-id': u'host:00:00:00:00:00:02',
u'termination-point': [
{
u'tp-id': u'host:00:00:00:00:00:02'
}
]
}
],
u'link': [
{
u'link-id': u'host:00:00:00:00:00:01/openflow:1:1',
u'destination': {
u'dest-node': u'openflow:1',
u'dest-tp': u'openflow:1:1'
},
u'source': {
u'source-tp': u'host:00:00:00:00:00:01',
u'source-node': u'host:00:00:00:00:00:01'
}
},
{
u'link-id': u'openflow:2:1/host:00:00:00:00:00:02',
u'destination': {
u'dest-node': u'host:00:00:00:00:00:02',
u'dest-tp': u'host:00:00:00:00:00:02'
},
u'source': {
u'source-tp': u'openflow:2:1',
u'source-node': u'openflow:2'
}
},
{
u'link-id': u'openflow:1:2',
u'destination': {
u'dest-node': u'openflow:2',
u'dest-tp': u'openflow:2:2'
},
u'source': {
u'source-tp': u'openflow:1:2',
u'source-node': u'openflow:1'
}
},
{
u'link-id': u'openflow:2:2',
u'destination': {
u'dest-node': u'openflow:1',
u'dest-tp': u'openflow:1:2'
},
u'source': {
u'source-tp': u'openflow:2:2',
u'source-node': u'openflow:2'
}
},
{
u'link-id': u'openflow:1:1/host:00:00:00:00:00:01',
u'destination': {
u'dest-node': u'host:00:00:00:00:00:01',
u'dest-tp': u'host:00:00:00:00:00:01'
},
u'source': {
u'source-tp': u'openflow:1:1',
u'source-node': u'openflow:1'
}
},
{
u'link-id': u'host:00:00:00:00:00:02/openflow:2:1',
u'destination': {
u'dest-node': u'openflow:2',
u'dest-tp': u'openflow:2:1'
},
u'source': {
u'source-tp': u'host:00:00:00:00:00:02',
u'source-node': u'host:00:00:00:00:00:02'
}
}
],
u'topology-id': u'flow:1'
}
]
}
}
这是我测试的代码,它只能得到节点,但不能得到链接/边。。。你知道吗
# get nodes
resp, content = h.request(url, "GET")
nodeData = json.loads(content)
topology = nodeData['network-topology']['topology'][0]
print "Nodes List:"
for i in range(len(topology['node'])):
print "Node ID - ", topology['node'][i]['node-id']
i += 1
# Get links/edges
resp, content = h.request(url, "GET")
linkData = json.loads(content)
topology = linkData['network-topology']['topology'][0]
print "Links List:"
for i in range(len(topology['link'])):
print "Link ID - ", topology['link'][i]['link-id']
i += 1
# Add nodes and links into graph
graph = nx.Graph()
for node in range(len(topology['node'])):
graph.add_node(topology['node'][node]['node-id'])
for link in range(len(topology['link'])):
e = (link['link']['destination']['node']['node-id'], link['link']['source']['node']['node-id'])
graph.add_edge(*e)
print "Graph Nodes:"
print graph.nodes()
print "Graph Links:"
print graph.links()
# write json formatted data to use in visualization
d = json_graph.node_link_data(graph)
json.dump(d, open('topo.json','w'))
print('Wrote node-link JSON data')
我试着删除与link/edge和remain节点相关的代码,没有问题。我可以在中获得节点的详细信息拓扑.json…但当我添加链接的图表时,我遇到了问题
这里的问题是我无法绘制边或链接。下面给我一个错误
e = (link['link']['destination']['node']['node-id'], link['link']['source']['node']['node-id'])
TypeError: 'int' object has no attribute '__getitem__'
我只是不知道如何解决…感谢专家的建议和帮助…谢谢
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
我在下面进行了修改,但得到了不同的错误类型error:字符串索引必须是整数
# Get links/edges
resp, content = h.request(url, "GET")
linkData = json.loads(content)
a = linkData['network-topology']['topology'][0]
print a
# Add links into graph
graph = nx.Graph()
for link in a:
e = (link['link']['destination']['node']['node-id'], link['link']['source']['node']['node-id'])
graph.add_edge(*e)
打印上面的内容并在下面给出输出
{
u'node': [
{
u'opendaylight-topology-inventory:inventory-node-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:1']",
u'node-id': u'openflow:1',
u'termination-point': [
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:1']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:1:2']",
u'tp-id': u'openflow:1:2'
},
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:1']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:1:1']",
u'tp-id': u'openflow:1:1'
},
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:1']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:1:LOCAL']",
u'tp-id': u'openflow:1:LOCAL'
}
]
},
{
u'host-tracker-service:addresses': [
{
u'first-seen': 1562655393902,
u'ip': u'10.0.0.1',
u'mac': u'00:00:00:00:00:01',
u'id': 6,
u'last-seen': 1562655393902
}
],
u'host-tracker-service:id': u'00:00:00:00:00:01',
u'host-tracker-service:attachment-points': [
{
u'active': True,
u'corresponding-tp': u'host:00:00:00:00:00:01',
u'tp-id': u'openflow:1:1'
}
],
u'node-id': u'host:00:00:00:00:00:01',
u'termination-point': [
{
u'tp-id': u'host:00:00:00:00:00:01'
}
]
},
{
u'opendaylight-topology-inventory:inventory-node-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:2']",
u'node-id': u'openflow:2',
u'termination-point': [
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:2']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:2:LOCAL']",
u'tp-id': u'openflow:2:LOCAL'
},
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:2']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:2:1']",
u'tp-id': u'openflow:2:1'
},
{
u'opendaylight-topology-inventory:inventory-node-connector-ref': u"/opendaylight-inventory:nodes/opendaylight-inventory:node[opendaylight-inventory:id='openflow:2']/opendaylight-inventory:node-connector[opendaylight-inventory:id='openflow:2:2']",
u'tp-id': u'openflow:2:2'
}
]
},
{
u'host-tracker-service:addresses': [
{
u'first-seen': 1562655393906,
u'ip': u'10.0.0.2',
u'mac': u'00:00:00:00:00:02',
u'id': 7,
u'last-seen': 1562655393906
}
],
u'host-tracker-service:id': u'00:00:00:00:00:02',
u'host-tracker-service:attachment-points': [
{
u'active': True,
u'corresponding-tp': u'host:00:00:00:00:00:02',
u'tp-id': u'openflow:2:1'
}
],
u'node-id': u'host:00:00:00:00:00:02',
u'termination-point': [
{
u'tp-id': u'host:00:00:00:00:00:02'
}
]
}
],
u'link': [
{
u'link-id': u'host:00:00:00:00:00:01/openflow:1:1',
u'destination': {
u'dest-node': u'openflow:1',
u'dest-tp': u'openflow:1:1'
},
u'source': {
u'source-tp': u'host:00:00:00:00:00:01',
u'source-node': u'host:00:00:00:00:00:01'
}
},
{
u'link-id': u'openflow:2:1/host:00:00:00:00:00:02',
u'destination': {
u'dest-node': u'host:00:00:00:00:00:02',
u'dest-tp': u'host:00:00:00:00:00:02'
},
u'source': {
u'source-tp': u'openflow:2:1',
u'source-node': u'openflow:2'
}
},
{
u'link-id': u'openflow:1:2',
u'destination': {
u'dest-node': u'openflow:2',
u'dest-tp': u'openflow:2:2'
},
u'source': {
u'source-tp': u'openflow:1:2',
u'source-node': u'openflow:1'
}
},
{
u'link-id': u'openflow:2:2',
u'destination': {
u'dest-node': u'openflow:1',
u'dest-tp': u'openflow:1:2'
},
u'source': {
u'source-tp': u'openflow:2:2',
u'source-node': u'openflow:2'
}
},
{
u'link-id': u'openflow:1:1/host:00:00:00:00:00:01',
u'destination': {
u'dest-node': u'host:00:00:00:00:00:01',
u'dest-tp': u'host:00:00:00:00:00:01'
},
u'source': {
u'source-tp': u'openflow:1:1',
u'source-node': u'openflow:1'
}
},
{
u'link-id': u'host:00:00:00:00:00:02/openflow:2:1',
u'destination': {
u'dest-node': u'openflow:2',
u'dest-tp': u'openflow:2:1'
},
u'source': {
u'source-tp': u'host:00:00:00:00:00:02',
u'source-node': u'host:00:00:00:00:00:02'
}
}
],
u'topology-id': u'flow:1'
}
还在努力解决…到目前为止没有任何进展。。。你知道吗
需要从API调用中获取所有节点和链接(源和目标),并将其保存到json文件中,然后发送到d3.js进行图形可视化。请告知。谢谢
这个for循环:
告诉Python给
link
赋值0
,1
,2
。。。最长为topology['link']
(长度减1)。这就解释了for循环第一次尝试在整数0
中查找条目['link']
时第一行出现的错误。整数没有这样的条目。你知道吗你是想做
for link in topology['link']:
还是别的什么?似乎你期望link
是某种形式的dict。你知道吗您的代码还有其他问题。你知道吗
在块的末尾
i+=1
没有什么意义,因为下次它循环通过时,i
会从for循环中得到一个新值。我还想知道在topology['node']
上的for循环中是否有隐藏的错误,类似于循环中给出错误的那一个。你知道吗相关问题 更多 >
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