TitanFactory.open（）配置 [英] TitanFactory.open() configration

问题描述

我上一个问题是关于TitanFactory类的语法。现在我不知道如何使用它？

例如，我可以像下面这样构造RexsterGraph对象，它的工作原理就像一个魅力。

  Graph graph = new RexsterGraph（http://190.188.20.11:8183/graphs/graph）; 
  

现在我想导入csv文件到Titan中，所以我需要TitanGraph对象，我找到了下面的帖子。

如何导入CSV文件

>

无法找到实现类：
com.thinkaurelius.titan.diskstorage.cassandra.thrift.CassandraThriftStoreManager

  TitanGraph titanGraph = null; 
 try {
 titanGraph = TitanFactory 
 .open（D：\\TEMP\\ ）; 
} catch（Exception e）{
 System.err.println（e.getMessage（））; 
 
 System.out.println（\\\
）; 
 
 System.err.println（e.getStackTrace（））; 
} 
  

我需要的唯一的东西是我想要一些代码像RexsterGraph示例TitanGraph对象的实例。我该怎么办？我运行的代码在我的本地，但图是工作远程Linux机器

解决方案

test.csv行

id：1，name：xxx，age：20，........

id：2，name：yyy，age：21，........

t知道你的csv文件大小是什么，但它很小，可以这样导入

  String path =c：\ \test.csv; 
 Charset encoding = Charset.forName（ISO-8859-1）; 
 try {
 List< String> lines = Files.readAllLines（Paths.get（path），encoding）; 
 Graph graph = new RexsterGraph（http://190.188.20.11:8183/graphs/graph）; 
 
 for（String line：lines）{
 Vertex currentNode = graph.addVertex（null）; 
 String [] values = line.split（，）; 
 for（String value：values）{
 String [] property = value.split（：）; 
 currentNode.setProperty（property [0] .toString（），property [1] .toString（））; 
} 
} 
 
} 
  

My previous question was about the syntax of the TitanFactory class. Now i wonder how to use it?

For example i can construct RexsterGraph object like the following and it works like a charm.

Graph graph = new RexsterGraph(http://190.188.20.11:8183/graphs/graph");

Now i want to import csv file into the titan. So i need TitanGraph object. I found the following post to do that.

How to import a CSV file into Titan graph database?

And i worte the following code and it gives me error.

Could not find implementation class: com.thinkaurelius.titan.diskstorage.cassandra.thrift.CassandraThriftStoreManager

    TitanGraph titanGraph = null;
    try {
        titanGraph = TitanFactory
                .open("D:\\TEMP\\titan-cassandra.properties");
    } catch (Exception e) {
        System.err.println(e.getMessage());

        System.out.println("\n");

        System.err.println(e.getStackTrace());
    }

The only thing i need is that i want some code like RexsterGraph example for getting instance of TitanGraph object. What should i do? by the way i run the code on my local but graph is working remote linux machine

解决方案

sample test.csv lines

id:1,name:xxx,age:20,........

id:2,name:yyy,age:21,........

I don't know what is your csv file size but it is small, you can import like this

            String path = "c:\\test.csv";
            Charset encoding = Charset.forName("ISO-8859-1");
            try {
                List<String> lines = Files.readAllLines(Paths.get(path), encoding);
                Graph graph = new RexsterGraph("http://190.188.20.11:8183/graphs/graph");

                for (String line : lines) {
                    Vertex currentNode = graph.addVertex(null);
                    String[] values = line.split(",");
                    for (String value : values) {
                        String[] property = value.split(":");
                        currentNode.setProperty(property[0].toString(), property[1].toString());
                    }
                }

            }

这篇关于TitanFactory.open（）配置的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！