entlicher commented on a change in pull request #3025: URL: https://github.com/apache/netbeans/pull/3025#discussion_r662576537
########## File path: java/java.lsp.server/src/org/netbeans/modules/java/lsp/server/debugging/attach/AttachConfigurationCompletion.java ########## @@ -0,0 +1,176 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.netbeans.modules.java.lsp.server.debugging.attach; + +import com.google.gson.stream.JsonWriter; +import java.io.IOException; +import java.io.StringWriter; +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import java.util.Map; +import java.util.concurrent.CompletableFuture; +import java.util.function.Supplier; +import java.util.stream.Collectors; + +import org.eclipse.lsp4j.CompletionItem; +import org.eclipse.lsp4j.InsertTextFormat; +import org.netbeans.api.project.Project; +import org.netbeans.modules.java.lsp.server.Utils; +import org.netbeans.modules.java.lsp.server.protocol.LaunchConfigurationCompletion; +import org.openide.util.Exceptions; +import org.openide.util.lookup.ServiceProvider; + +/** + * Completion of debugger attach configurations. + * + * @author Martin Entlicher + */ +@ServiceProvider(service = LaunchConfigurationCompletion.class, position = 200) +public class AttachConfigurationCompletion implements LaunchConfigurationCompletion { + + @Override + public CompletableFuture<List<CompletionItem>> configurations(Supplier<CompletableFuture<Project>> projectSupplier) { + return CompletableFuture.supplyAsync(() -> { + return createCompletion(AttachConfigurations.get()); + }, AttachConfigurations.RP); + } + + @Override + public CompletableFuture<List<CompletionItem>> attributes(Supplier<CompletableFuture<Project>> projectSupplier, Map<String, Object> currentAttributes) { + return CompletableFuture.supplyAsync(() -> { + return createAttributesCompletion(AttachConfigurations.get(), currentAttributes); + }, AttachConfigurations.RP); + } + + @Override + public CompletableFuture<List<CompletionItem>> attributeValues(Supplier<CompletableFuture<Project>> projectSupplier, Map<String, Object> currentAttributes, String attribute) { + return CompletableFuture.completedFuture(Collections.emptyList()); + } + + private static List<CompletionItem> createCompletion(AttachConfigurations attachConfigurations) { + return attachConfigurations.getConfigurations().stream().map(configAttrs -> createCompletion(configAttrs)).collect(Collectors.toList()); + } + + private static CompletionItem createCompletion(ConfigurationAttributes configAttrs) { + CompletionItem ci = new CompletionItem("Java 8+: " + configAttrs.getName()); // NOI18N + StringWriter sw = new StringWriter(); + try (JsonWriter w = new JsonWriter(sw)) { + w.setIndent("\t"); // NOI18N + w.beginObject(); + w.name("name").value("${1:" + Utils.escapeCompletionSnippetSpecialChars(configAttrs.getName()) + "}"); // NOI18N + w.name("type").value(AttachConfigurations.CONFIG_TYPE); // NOI18N + w.name("request").value(AttachConfigurations.CONFIG_REQUEST); // NOI18N + int locationIndex = 2; + for (Map.Entry<String, ConfigurationAttribute> entry : configAttrs.getAttributes().entrySet()) { + ConfigurationAttribute ca = entry.getValue(); + if (ca.isMustSpecify()) { + String value = ca.getDefaultValue(); + if (value.startsWith("${command:")) { // Do not suggest to customize values provided by commands // NOI18N + value = Utils.escapeCompletionSnippetSpecialChars(encode2JSON(value)); + } else { + value = "${" + (locationIndex++) + (value.isEmpty() ? "}" : ":" + Utils.escapeCompletionSnippetSpecialChars(encode2JSON(value)) + "}"); // NOI18N + } + // We have pre-encoded the value in order not to encode the completion snippet escape characters + w.name(entry.getKey()).jsonValue("\"" + value + "\""); + } + } + w.endObject(); + w.flush(); + } catch (IOException ex) { + Exceptions.printStackTrace(ex); + } + ci.setInsertText(sw.toString()); + ci.setInsertTextFormat(InsertTextFormat.Snippet); + ci.setDocumentation(configAttrs.getDescription()); + return ci; + } + + private static String encode2JSON(String value) { + if (value.isEmpty()) { + return value; + } + StringWriter sw = new StringWriter(); + try (JsonWriter w = new JsonWriter(sw)) { + w.beginArray(); + w.value(value); + w.endArray(); + w.flush(); + } catch (IOException ex) { + Exceptions.printStackTrace(ex); + } + String encoded = sw.toString(); + // We have ["value"], remove the array and quotes + return encoded.substring(2, encoded.length() - 2); + } + + private static List<CompletionItem> createAttributesCompletion(AttachConfigurations attachConfigurations, Map<String, Object> currentAttributes) { + List<CompletionItem> completionItems = null; + ConfigurationAttributes currentConfiguration = attachConfigurations.findConfiguration(currentAttributes); + if (currentConfiguration != null) { + Map<String, ConfigurationAttribute> attributes = currentConfiguration.getAttributes(); + for (Map.Entry<String, ConfigurationAttribute> entry : attributes.entrySet()) { + String attrName = entry.getKey(); + if (!currentAttributes.containsKey(attrName)) { + StringWriter sw = new StringWriter(); + try (JsonWriter w = new JsonWriter(sw)) { + w.beginObject(); + w.name(attrName).value(entry.getValue().getDefaultValue()); + w.endObject(); + w.flush(); + } catch (IOException ex) { + Exceptions.printStackTrace(ex); + } + CompletionItem ci = new CompletionItem(attrName); + String text = sw.toString(); + text = text.substring(1, text.length() - 1); // Remove { and } + ci.setInsertText(text); + ci.setDocumentation(entry.getValue().getDescription()); + if (completionItems == null) { + completionItems = new ArrayList<>(3); + } + completionItems.add(ci); + } + } + } + if (completionItems != null) { + return completionItems; + } else { + return Collections.emptyList(); + } + } + + /* Review comment: Yes, thanks! -- This is an automated message from the Apache Git Service. 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