| /** |
| * 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.apache.pulsar.client.cli; |
| |
| import com.beust.jcommander.JCommander; |
| import com.beust.jcommander.Parameter; |
| import com.beust.jcommander.ParameterDescription; |
| import com.beust.jcommander.Parameters; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Properties; |
| import lombok.Getter; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.pulsar.client.api.PulsarClientException; |
| |
| @Getter |
| @Parameters(commandDescription = "Generate documentation automatically.") |
| @Slf4j |
| public class CmdGenerateDocumentation { |
| |
| @Parameter(names = {"-n", "--command-names"}, description = "List of command names") |
| private List<String> commandNames = new ArrayList<>(); |
| |
| public int run() throws PulsarClientException { |
| PulsarClientTool pulsarClientTool = new PulsarClientTool(new Properties()); |
| JCommander commander = pulsarClientTool.commandParser; |
| if (commandNames.size() == 0) { |
| for (Map.Entry<String, JCommander> cmd : commander.getCommands().entrySet()) { |
| if (cmd.getKey().equals("generate_documentation")) { |
| continue; |
| } |
| generateDocument(cmd.getKey(), commander); |
| } |
| } else { |
| for (String commandName : commandNames) { |
| if (commandName.equals("generate_documentation")) { |
| continue; |
| } |
| generateDocument(commandName, commander); |
| } |
| } |
| return 0; |
| } |
| |
| protected String generateDocument(String module, JCommander parentCmd) { |
| StringBuilder sb = new StringBuilder(); |
| JCommander cmd = parentCmd.getCommands().get(module); |
| sb.append("------------\n\n"); |
| sb.append("# ").append(module).append("\n\n"); |
| sb.append("### Usage\n\n"); |
| sb.append("`$").append(module).append("`\n\n"); |
| sb.append("------------\n\n"); |
| sb.append(parentCmd.getUsageFormatter().getCommandDescription(module)).append("\n"); |
| sb.append("\n\n```bdocs-tab:example_shell\n") |
| .append("$ pulsar-client ").append(module).append(" [options]") |
| .append("\n```"); |
| sb.append("\n\n"); |
| for (String s : cmd.getCommands().keySet()) { |
| sb.append("* `").append(s).append("`\n"); |
| } |
| sb.append("|Flag|Description|Default|\n"); |
| sb.append("|---|---|---|\n"); |
| List<ParameterDescription> options = cmd.getParameters(); |
| options.forEach((option) -> |
| sb.append("| `").append(option.getNames()) |
| .append("` | ").append(option.getDescription().replace("\n", " ")) |
| .append("|").append(option.getDefault()).append("|\n") |
| ); |
| System.out.println(sb.toString()); |
| return sb.toString(); |
| } |
| } |