Examples with CompletionResponse org.eclipse.jdt.ls.core.internal.handlers.CompletionResponse used on opensource projects

Example 1 with CompletionResponse

use of org.eclipse.jdt.ls.core.internal.handlers.CompletionResponse in project eclipse.jdt.ls by eclipse.

the class SnippetCompletionProposal method getGenericSnippets.

private static List<CompletionItem> getGenericSnippets(SnippetCompletionContext scc) throws JavaModelException {
    CompletionResponse response = new CompletionResponse();
    response.setContext(scc.getCompletionContext());
    response.setOffset(scc.getCompletionContext().getOffset());
    List<CompletionItem> res = new ArrayList<>();
    CompletionContext completionContext = scc.getCompletionContext();
    char[] completionToken = completionContext.getToken();
    if (completionToken == null) {
        return Collections.emptyList();
    }
    int tokenLocation = completionContext.getTokenLocation();
    JavaContextType contextType = (JavaContextType) JavaLanguageServerPlugin.getInstance().getTemplateContextRegistry().getContextType(JavaContextType.ID_STATEMENTS);
    if (contextType == null) {
        return Collections.emptyList();
    }
    ICompilationUnit cu = scc.getCompilationUnit();
    IDocument document = new Document(cu.getSource());
    DocumentTemplateContext javaContext = contextType.createContext(document, completionContext.getOffset(), completionToken.length, cu);
    Template[] templates = null;
    if ((tokenLocation & CompletionContext.TL_STATEMENT_START) != 0) {
        templates = JavaLanguageServerPlugin.getInstance().getTemplateStore().getTemplates(JavaContextType.ID_STATEMENTS);
    } else {
    // We only support statement templates for now.
    }
    if (templates == null || templates.length == 0) {
        return Collections.emptyList();
    }
    String uri = JDTUtils.toURI(cu);
    Template[] availableTemplates = Arrays.stream(templates).filter(t -> javaContext.canEvaluate(t)).toArray(Template[]::new);
    List<CompletionProposal> proposals = new ArrayList<>();
    for (int i = 0; i < availableTemplates.length; i++) {
        Template template = availableTemplates[i];
        final CompletionItem item = new CompletionItem();
        item.setLabel(template.getName());
        item.setKind(CompletionItemKind.Snippet);
        item.setInsertTextFormat(InsertTextFormat.Snippet);
        item.setInsertText(SnippetUtils.templateToSnippet(template.getPattern()));
        item.setDetail(template.getDescription());
        Map<String, String> data = new HashMap<>(3);
        data.put(CompletionResolveHandler.DATA_FIELD_URI, uri);
        data.put(CompletionResolveHandler.DATA_FIELD_REQUEST_ID, String.valueOf(response.getId()));
        data.put(CompletionResolveHandler.DATA_FIELD_PROPOSAL_ID, String.valueOf(i));
        item.setData(data);
        proposals.add(i, new SnippetCompletionProposal(template));
        res.add(item);
    }
    response.setProposals(proposals);
    CompletionResponses.store(response);
    return res;
}