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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | 1x 1x 7x 7x 7x 7x 7x 7x 5x 5x 5x 5x 2x 2x 2x 1x 4x 4x 4x 3x 3x 1x 2x 2x 1x | import * as vscode from 'vscode';
import { container } from 'tsyringe';
import { ServiceToken } from '@src/services/tokens';
import { ISparqlQueryService } from '@src/languages/sparql/services';
import { SparqlConnection } from '@src/languages/sparql/services/sparql-connection';
import { MENTOR_WORKSPACE_STORE } from '@src/languages/sparql/services/sparql-connection-service';
import { WorkspaceUri } from '@src/providers/workspace-uri';
const LARGE_GRAPH_THRESHOLD = 10000;
export const openGraph = {
id: 'mentor.command.openGraph',
handler: async (graphIri: vscode.Uri | string, connection?: SparqlConnection) => {
const targetConnection = connection ?? MENTOR_WORKSPACE_STORE;
const queryService = container.resolve<ISparqlQueryService>(ServiceToken.SparqlQueryService);
// Hoisted so the catch block can offer it in the error notification.
const constructQuery = `CONSTRUCT {
?s ?p ?o .
} WHERE {
GRAPH <${WorkspaceUri.toCanonicalString(graphIri)}> {
?s ?p ?o .
}
}`;
try {
// Check if the graph contains more than the threshold number of triples.
const countQuery = `
SELECT (COUNT(?s) as ?count)
WHERE {
SELECT ?s
WHERE {
GRAPH <${WorkspaceUri.toCanonicalString(graphIri)}> {
?s ?p ?o .
}
}
LIMIT ${LARGE_GRAPH_THRESHOLD}
}
`;
const countResult = await queryService.executeQueryOnConnection(countQuery, targetConnection);
Eif (countResult?.type === 'bindings' && countResult.bindings.length > 0) {
const countValue = countResult.bindings[0].get('count');
const count = countValue ? parseInt(countValue.value, 10) : 0;
if (count === LARGE_GRAPH_THRESHOLD) {
const message = `The graph contains more than ${LARGE_GRAPH_THRESHOLD.toLocaleString()} triples. Exporting it may take some time. Do you want to continue?`;
const answer = await vscode.window.showWarningMessage(message, { modal: true }, 'Continue');
if (answer !== 'Continue') {
return;
}
}
}
await vscode.window.withProgress({
location: vscode.ProgressLocation.Notification,
title: 'Exporting graph...',
cancellable: false
}, async () => {
const result = await queryService.executeQueryOnConnection(constructQuery, targetConnection);
if (result?.type === 'quads' && result.data) {
const document = await vscode.workspace.openTextDocument({
content: result.data,
language: 'turtle'
});
vscode.window.showTextDocument(document);
} else {
vscode.window.showInformationMessage('The graph is empty or could not be exported.');
}
});
} catch (error: any) {
const action = await vscode.window.showErrorMessage(
`Failed to serialize graph: ${error.message}`,
'Edit Query'
);
if (action === 'Edit Query') {
await vscode.commands.executeCommand('mentor.command.openDocument', '', constructQuery);
}
}
}
}; |