| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed 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 com.android.commands.svc; |
| |
| public class Svc { |
| |
| public static abstract class Command { |
| private String mName; |
| |
| public Command(String name) { |
| mName = name; |
| } |
| |
| public String name() { |
| return mName; |
| } |
| |
| public abstract String shortHelp(); // should fit on one short line |
| public abstract String longHelp(); // take as much space as you need, 75 col max |
| public abstract void run(String[] args); // run the command |
| } |
| |
| public static void main(String[] args) { |
| if (args.length >= 1) { |
| Command c = lookupCommand(args[0]); |
| if (c != null) { |
| c.run(args); |
| return; |
| } |
| } |
| COMMAND_HELP.run(args); |
| } |
| |
| private static Command lookupCommand(String name) { |
| final int N = COMMANDS.length; |
| for (int i=0; i<N; i++) { |
| Command c = COMMANDS[i]; |
| if (c.name().equals(name)) { |
| return c; |
| } |
| } |
| return null; |
| } |
| |
| public static final Command COMMAND_HELP = new Command("help") { |
| public String shortHelp() { |
| return "Show information about the subcommands"; |
| } |
| public String longHelp() { |
| return shortHelp(); |
| } |
| public void run(String[] args) { |
| if (args.length == 2) { |
| Command c = lookupCommand(args[1]); |
| if (c != null) { |
| System.err.println(c.longHelp()); |
| return; |
| } |
| } |
| |
| System.err.println("Available commands:"); |
| final int N = COMMANDS.length; |
| int maxlen = 0; |
| for (int i=0; i<N; i++) { |
| Command c = COMMANDS[i]; |
| int len = c.name().length(); |
| if (maxlen < len) { |
| maxlen = len; |
| } |
| } |
| String format = " %-" + maxlen + "s %s"; |
| for (int i=0; i<N; i++) { |
| Command c = COMMANDS[i]; |
| System.err.println(String.format(format, c.name(), c.shortHelp())); |
| } |
| } |
| }; |
| |
| public static final Command[] COMMANDS = new Command[] { |
| COMMAND_HELP, |
| new PowerCommand(), |
| // `svc wifi` has been migrated to WifiShellCommand |
| new UsbCommand(), |
| new NfcCommand(), |
| // `svc bluetooth` has been migrated to BluetoothShellCommand |
| new SystemServerCommand(), |
| }; |
| } |