ldtreeBrowser

installation

git clone https://github.com/Dexagod/ldtreeBrowser.git
cd ldtreeBrowser
npm install

Evaluate prefix queries

note: a new Querying client is being developed using the comunica query engine The continuation of the query process on previously queried prefixes is not available for this implementation, but is roadmapped for the comunica implementation.

// Evaluate prefix queries over a B-tree fragmentation
import { BTreePrefixQuery } from './Queries/BTreePrefixQuery';

// Evaluate prefix queries over a prefix-tree fragmentation
import { PrefixQuery } from './Queries/PrefixQuery';

// Evaluate full text matching queries over a b-tree fragmentation
import { BTreeQuery } from './Queries/BTreeQuery';

import { AutocompleteClient } from './Clients/AutocompleteClient';
import { WKTClient } from './Clients/WKTClient';
import { BTreeClient } from './Clients/BTreeClient';

const fs = require("fs")

/**
* Function to query over a remote fragmentation of a dataset.
* url: Url of the generated collection object for the dataset.
* prefix: The queried prefix value.
* path: The queried prefix path.
*/
async function query(url, prefix, path){
  let resultcount = 50; // Set the max amount of results required
  
  let client = new AutocompleteClient()
 

  client.on("data", (data) => {
    let quads = data.data // These are the RDF quads for a single emitted entity of the dataset matching the client query.
    // Process and visualize the emitted entity 
  });
  
  client.query(prefix, BTreePrefixQuery, path, url, resultcount)  
}