1 /*
2  * Copyright (C) 2018 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License
15  */
16 
17 package com.android.dialer.commandline.impl;
18 
19 import android.support.annotation.NonNull;
20 import android.support.annotation.VisibleForTesting;
21 import android.text.TextUtils;
22 import com.android.dialer.commandline.Arguments;
23 import com.android.dialer.commandline.Command;
24 import com.google.common.util.concurrent.Futures;
25 import com.google.common.util.concurrent.ListenableFuture;
26 import javax.inject.Inject;
27 
28 /** Print arguments. */
29 public class Echo implements Command {
30 
31   @NonNull
32   @Override
getShortDescription()33   public String getShortDescription() {
34     return "@hide Print all arguments.";
35   }
36 
37   @NonNull
38   @Override
getUsage()39   public String getUsage() {
40     return "echo [arguments...]";
41   }
42 
43   @VisibleForTesting
44   @Inject
Echo()45   public Echo() {}
46 
47   @Override
run(Arguments args)48   public ListenableFuture<String> run(Arguments args) throws IllegalCommandLineArgumentException {
49     return Futures.immediateFuture(TextUtils.join(" ", args.getPositionals()));
50   }
51 }
52