public Runnable getEditsRunnable()

in PluginsAndFeatures/azure-toolkit-for-intellij/azure-intellij-plugin-bicep/src/main/java/org/wso2/lsp4intellij/editor/EditorEventManager.java [1050:1131]
74 lines of code
17 McCabe index (conditional complexity)

    public Runnable getEditsRunnable(int version, List<Either<TextEdit, InsertReplaceEdit>> edits, String name, boolean setCaret) {
        if (version < this.documentEventManager.getDocumentVersion()) {
            LOG.warn(String.format("Edit version %d is older than current version %d", version, this.documentEventManager.getDocumentVersion()));
            return null;
        }
        if (edits == null) {
            LOG.warn("Received edits list is null.");
            return null;
        }
        if (editor.isDisposed()) {
            LOG.warn("Text edits couldn't be applied as the editor is already disposed.");
            return null;
        }
        Document document = editor.getDocument();
        if (!document.isWritable()) {
            LOG.warn("Document is not writable");
            return null;
        }

        return () -> {
            // Creates a sorted edit list based on the insertion position and the edits will be applied from the bottom
            // to the top of the document. Otherwise all the other edit ranges will be invalid after the very first edit,
            // since the document is changed.
            List<LSPTextEdit> lspEdits = new ArrayList<>();
            edits.forEach(edit -> {
                if(edit.isLeft()) {
                    String text = edit.getLeft().getNewText();
                    Range range = edit.getLeft().getRange();
                    if (range != null) {
                        int start = DocumentUtils.LSPPosToOffset(editor, range.getStart());
                        int end = DocumentUtils.LSPPosToOffset(editor, range.getEnd());
                        lspEdits.add(new LSPTextEdit(text, start, end));
                    }
                } else if(edit.isRight()) {
                    String text = edit.getRight().getNewText();
                    Range range = edit.getRight().getInsert();

                    if (range != null) {
                        int start = DocumentUtils.LSPPosToOffset(editor, range.getStart());
                        int end = DocumentUtils.LSPPosToOffset(editor, range.getEnd());
                        lspEdits.add(new LSPTextEdit(text, start, end));
                    } else if ((range = edit.getRight().getReplace()) != null) {
                        int start = DocumentUtils.LSPPosToOffset(editor, range.getStart());
                        int end = DocumentUtils.LSPPosToOffset(editor, range.getEnd());
                        lspEdits.add(new LSPTextEdit(text, start, end));
                    }
                }
            });

            // Sort according to the start offset, in descending order.
            Collections.sort(lspEdits);

            lspEdits.forEach(edit -> {
                String text = edit.getText();
                int start = edit.getStartOffset();
                int end = edit.getEndOffset();
                if (StringUtils.isEmpty(text)) {
                    document.deleteString(start, end);
                    if (setCaret) {
                        editor.getCaretModel().moveToOffset(start);
                    }
                } else {
                    text = text.replace(DocumentUtils.WIN_SEPARATOR, DocumentUtils.LINUX_SEPARATOR);
                    if (end >= 0) {
                        if (end - start <= 0) {
                            document.insertString(start, text);
                        } else {
                            document.replaceString(start, end, text);
                        }
                    } else if (start == 0) {
                        document.setText(text);
                    } else if (start > 0) {
                        document.insertString(start, text);
                    }
                    if (setCaret) {
                        editor.getCaretModel().moveToOffset(start + text.length());
                    }
                }
                saveDocument();
            });
        };
    }