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History For Private Data In Hyperledger Fabric

由 匿名 (未验证) 提交于 2019-12-03 01:45:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Is there any way to get the history for Private data in Hyperledger Fabric node SDK. I've tried using getHistoryForKey(key) It returns an empty object with only { done: true } 回答1: The API to get history for private data is not yet implemented, but is planned for a future release of Hyperledger Fabric. In the interim you could add some minimal information to a public key in the same transaction for historical tracking. That could either be a logical key, or if the key itself is sensitive, you could take a hash of the logical key and save

Javascript -> file-download Edge -> set “from” to actual site

由 匿名 (未验证) 提交于 2019-12-03 01:41:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I can download files from my server. After a lot research I found this method in javascript: fetch ( "requestUrlToFile" , { method : "GET" , headers : { "authorization" : "jwt" } }) . then ( checkStatus ) . then ( function ( res ){ return res . blob (); }) . then ( function ( blob ){ var filename = "PdfName-" + new Date (). getTime () + ".pdf" ; if ( typeof window . navigator . msSaveBlob !== 'undefined' ) { // IE var blob = new Blob ([ blob ], { type : 'application/pdf' }); window . navigator . msSaveBlob ( blob , filename ); }

R : how to control behaviour of edges in ggraph

由 匿名 (未验证) 提交于 2019-12-03 01:39:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm facing this issue: I got some data like these: library(tidyverse) library(tidygraph) library(ggraph) library(ggrepel) edges <- data.frame(a=c('k','k','k','k','k','z','z'), b=c('b','b','b','b','c','b','c'), costant = 1) a b costant 1 k b 1 2 k b 1 3 k b 1 4 k b 1 5 k c 1 6 z b 1 7 z c 1 Now I would lik to have a graph with ggraph that have nodes and edges with weights. So I worked this way: # first I calculated the edges weights edges1 <- edges%>% group_by(a,b) %>% summarise(weight = sum(costant)) > edges1 # A tibble: 4 x 3 # Groups: a [?

Spring Kafka is Acknowledgement.acknowledge thread safe?

由 匿名 (未验证) 提交于 2019-12-03 01:39:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am implementing an kafka based application where I would like to manually acknowledge incoming messages. Architecture forces me to do it in a separate thread. The question is: is it possible and safe to execute Acknowledgement.acknowledge() in a different thread than consumer? 回答1: Yes it is, as long as you use MANUAL and not MANUAL_IMMEDIATE , but I don't think you'll get what you expect. Kafka doesn't track each message, just offsets within the partition. Let's say message 1 arrives and you hand off to another thread. Then message 2

Box shadow not working in microsoft edge

由 匿名 (未验证) 提交于 2019-12-03 01:36:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Box-shadow not working on Microsoft Edge browser. I have implemented the follow in the section: (I'm not an idiot I have at the top) <meta http-equiv="X-UA-Compatible" content="IE=edge"> This is the body of my index.html file: <body> <div id="wrapper"> <header> <div id="header-inner"> <div id="logo"> <a href="index.html">body</a> </div> <ul> <li><a href="index.html">Home</a></li> <li><a id="sign-in" href="#">Sign in</a> <span id="sign-in-menu"> <div class="arrow-up"></div> <div class="arrow-up-top"></div> <div class="form"> <form action=

Hyperledger fabric Crypto materials

由 匿名 (未验证) 提交于 2019-12-03 01:34:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: If we see the crypto-config folder in basic-network of fabric-sample , we have various certificate materials with various types: Can anyone explain why there are so too many of these files why are some of these files duplicated(such as ca.example.com-cert.pem have many copies) and there purpose. What are .pem files used for? What are .crt files used for? What are .key files used for? What are ** ...._sk** files used for? And why the fabcar example manage it only by using 3 files.?? fabcar/creds ├――

Developer tools in windows edge browse localstorage

由 匿名 (未验证) 提交于 2019-12-03 01:33:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to use the new windows Edge browser for my web development.But just can't find any way to browse localstorage, cookies etc. inside the developer tools. How do I view them? Best regards 回答1: They are here: Debugger tab -> Folder icon on the left, under the "play" icon. 回答2: you can check localStorage object in the Console Open F12 Developer Tools (press F12) Go to Console tab type localStorage in the input and click run/press enter. check the screenshot 文章来源: Developer tools in windows edge browse localstorage

Specified edge lengths on networkx/igraph (Python)

由 匿名 (未验证) 提交于 2019-12-03 01:31:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I wanted to visualize a network with the data I have and would like to graph them with specific edge lengths. I use Python, and I've tried networkx and igraph to plot but all seem to assign fixed edge lengths. a.) I wonder if I did the codes wrong or the packages aren't really capable. How do you properly implement specified edge lengths for networkx or igraph? b.) If networkx and igraph can't do it, what package could you possibly suggest? (Preferably one that can carry over 80 thousand nodes.) Thanks! 回答1: This should work:

Add an edge label with Cytoscape.js

由 匿名 (未验证) 提交于 2019-12-03 01:29:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: How can I add a label on an edge using Cytoscape.js? 回答1: Map the label style property to a data field: e.g. in the stylesheet on init ... { selector: 'edge', style: { 'label': 'data(label)' // maps to data.label } } ... http://cytoscape.github.com/cytoscape.js/#style/properties Older versions use content: in place of label: . Newer versions of 2.x allow label and also content for backwards compatibility. 文章来源: Add an edge label with Cytoscape.js

What is the maximum number of edges in a directed graph with n nodes?

由 匿名 (未验证) 提交于 2019-12-03 01:29:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: What is the maximum number of edges in a directed graph with n nodes? Is there any upper bound? 回答1: If you have N nodes, there are N - 1 directed edges than can lead from it (going to every other node). Therefore, the maximum number of edges is N * (N - 1) . 回答2: In an undirected graph (excluding multigraphs), the answer is n*(n-1)/2. In a directed graph an edge may occur in both directions between two nodes, then the answer is n*(n-1). 回答3: Directed graph: Question : What's the maximum number of edges in a directed graph with n
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