com.github._1c_syntax.bsl.languageserver.providers.CodeLensProvider Maven / Gradle / Ivy
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/*
* This file is a part of BSL Language Server.
*
* Copyright (c) 2018-2023
* Alexey Sosnoviy , Nikita Fedkin and contributors
*
* SPDX-License-Identifier: LGPL-3.0-or-later
*
* BSL Language Server is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* BSL Language Server is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with BSL Language Server.
*/
package com.github._1c_syntax.bsl.languageserver.providers;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.github._1c_syntax.bsl.languageserver.ClientCapabilitiesHolder;
import com.github._1c_syntax.bsl.languageserver.LanguageClientHolder;
import com.github._1c_syntax.bsl.languageserver.codelenses.CodeLensData;
import com.github._1c_syntax.bsl.languageserver.codelenses.CodeLensSupplier;
import com.github._1c_syntax.bsl.languageserver.configuration.events.LanguageServerConfigurationChangedEvent;
import com.github._1c_syntax.bsl.languageserver.context.DocumentContext;
import jakarta.annotation.PostConstruct;
import lombok.RequiredArgsConstructor;
import lombok.SneakyThrows;
import org.eclipse.lsp4j.ClientCapabilities;
import org.eclipse.lsp4j.CodeLens;
import org.eclipse.lsp4j.CodeLensWorkspaceCapabilities;
import org.eclipse.lsp4j.Command;
import org.eclipse.lsp4j.WorkspaceClientCapabilities;
import org.eclipse.lsp4j.services.LanguageClient;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.context.event.EventListener;
import org.springframework.stereotype.Component;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
/**
* Провайдер, обрабатывающий запросы {@code textDocument/codeLens}, {@code codeLens/resolve},
* а так же отвечающий за отправку запроса {@code workspace/codeLens/refresh}.
*
* @see CodeLens Request specification.
* @see CodeLens Resolve Request specification.
* @see CodeLens Refresh Request specification.
*/
@Component
@RequiredArgsConstructor
public class CodeLensProvider {
private final Map> codeLensSuppliersById;
private final ObjectProvider>> enabledCodeLensSuppliersProvider;
private final LanguageClientHolder clientHolder;
private final ClientCapabilitiesHolder clientCapabilitiesHolder;
private final ObjectMapper objectMapper;
private List> enabledCodeLensSuppliers;
@PostConstruct
protected void init() {
enabledCodeLensSuppliers = enabledCodeLensSuppliersProvider.getObject();
}
/**
* Получение списка {@link CodeLens} в документе.
*
* @param documentContext Контекст документа.
* @return Список линз.
*/
public List getCodeLens(DocumentContext documentContext) {
return enabledCodeLensSuppliers.stream()
.filter(codeLensSupplier -> codeLensSupplier.isApplicable(documentContext))
.map(codeLensSupplier -> codeLensSupplier.getCodeLenses(documentContext))
.flatMap(Collection::stream)
.collect(Collectors.toList());
}
/**
* Провести операцию разрешения линзы (заполнение свойства
* {@link CodeLens#setCommand(Command)}).
*
* При разрешении линзы свойство {@link CodeLens#setData(Object)}
* очищается с целью уменьшения трафика между клиентом и сервером.
*
* @param documentContext Контекст документа.
* @param unresolved Неразрешенная линза.
* @param data Данные линзы.
* @return Разрешенная линза.
*/
public CodeLens resolveCodeLens(
DocumentContext documentContext,
CodeLens unresolved,
CodeLensData data
) {
var codeLensSupplier = codeLensSuppliersById.get(data.getId());
var resolvedCodeLens = codeLensSupplier.resolve(documentContext, unresolved, data);
resolvedCodeLens.setData(null);
return resolvedCodeLens;
}
/**
* Обработчик события {@link LanguageServerConfigurationChangedEvent}.
*
* В случае поддержки запроса подключенным клиентом инициирует запрос {@code workspace/codeLens/refresh}.
*
* @param event Событие
*/
@EventListener
public void handleEvent(LanguageServerConfigurationChangedEvent event) {
enabledCodeLensSuppliers = enabledCodeLensSuppliersProvider.getObject();
refreshCodeLenses();
}
/**
* Извлечь данные линзы из линзы.
*
* Возвращает объект данных типа, с которым был зарегистрирован
* сапплаер линзы (параметр-тип класса сапплаера).
*
* @param codeLens Линза, из которой необходимо извлечь данные.
* @return Извлеченные данные линзы.
*/
@SneakyThrows
public CodeLensData extractData(CodeLens codeLens) {
var rawCodeLensData = codeLens.getData();
if (rawCodeLensData instanceof CodeLensData) {
return (CodeLensData) rawCodeLensData;
}
return objectMapper.readValue(rawCodeLensData.toString(), CodeLensData.class);
}
/**
* Отправить запрос на обновление линз кода.
*/
public void refreshCodeLenses() {
boolean clientSupportsRefreshCodeLenses = clientCapabilitiesHolder.getCapabilities()
.map(ClientCapabilities::getWorkspace)
.map(WorkspaceClientCapabilities::getCodeLens)
.map(CodeLensWorkspaceCapabilities::getRefreshSupport)
.orElse(false);
if (!clientSupportsRefreshCodeLenses) {
return;
}
clientHolder.execIfConnected(LanguageClient::refreshCodeLenses);
}
}