1 /*
2  * Copyright (C) 2012 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 package com.android.tradefed.result;
17 
18 import com.android.tradefed.build.IBuildInfo;
19 import com.android.tradefed.config.OptionClass;
20 import com.android.tradefed.device.DeviceNotAvailableException;
21 import com.android.tradefed.log.LogUtil.CLog;
22 
23 import com.google.common.annotations.VisibleForTesting;
24 
25 import java.net.InetAddress;
26 import java.net.UnknownHostException;
27 
28 
29 
30 /**
31  * An {@link EmailResultReporter} that will send email when invocation fails due to a device not
32  * available exception.
33  */
34 @OptionClass(alias = "device-unavail-email")
35 public class DeviceUnavailEmailResultReporter extends EmailResultReporter {
36 
37     @Override
shouldSendMessage()38     protected boolean shouldSendMessage() {
39         return getInvocationException() instanceof DeviceNotAvailableException;
40     }
41 
42     @Override
generateEmailSubject()43     protected String generateEmailSubject() {
44         StringBuilder subj = new StringBuilder();
45         subj.append("Device unavailable ");
46         for (IBuildInfo build : getInvocationContext().getBuildInfos()) {
47             subj.append(build.toString());
48         }
49         subj.append(" ");
50         subj.append(String.format("hostname %s", getHostname()));
51 
52         // Sample email subject: Device unavailable: mantaray-user JDQ39
53         // 015d172c980c2208 atl-034.mtv.corp.google.com
54         return subj.toString();
55     }
56 
57     /**
58      * Fetch the hostname and returns it, or returns "Unknown" if an error occurs.
59      */
60     @VisibleForTesting
getHostname()61     String getHostname() {
62         try {
63             return InetAddress.getLocalHost().getHostName();
64         } catch (UnknownHostException e) {
65             CLog.e(e);
66             return "Unknown";
67         }
68     }
69 }
70