remoting/android/java/src/org/chromium/chromoting/HostInfo.java

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 package org.chromium.chromoting;
   6
   7 import android.content.Context;
   8 import android.content.res.Resources;
   9 import android.text.TextUtils;
  10
  11 import org.chromium.base.Log;
  12
  13 import org.json.JSONArray;
  14 import org.json.JSONException;
  15 import org.json.JSONObject;
  16
  17 import java.text.ParsePosition;
  18 import java.text.SimpleDateFormat;
  19 import java.util.ArrayList;
  20 import java.util.Date;
  21 import java.util.Locale;
  22
  23 /** Class to represent a Host returned by {@link HostListLoader}. */
  24 public class HostInfo {
  25     private static final String TAG = "cr.Chromoting";
  26
  27     public final String name;
  28     public final String id;
  29     public final String jabberId;
  30     public final String publicKey;
  31     public final boolean isOnline;
  32     public final String hostOfflineReason;
  33     public final Date updatedTime;
  34
  35     private final ArrayList<String> mTokenUrlPatterns;
  36
  37     // Format of time values coming from the Chromoting REST API.
  38     // This is a specific form of RFC3339 (with no timezone info).
  39     // Example value to be parsed: 2014-11-21T01:02:33.814Z
  40     private static final String RFC_3339_FORMAT = "yyyy'-'MM'-'dd'T'HH':'mm':'ss'.'SSS'Z'";
  41
  42     // Value to use if time string received from the network is malformed.
  43     // Such malformed string should in theory never happen, but we want
  44     // to have a safe fallback in case it does happen.
  45     private static final Date FALLBACK_DATE_IN_THE_PAST = new Date(0);
  46
  47     public HostInfo(String name, String id, String jabberId, String publicKey,
  48             ArrayList<String> tokenUrlPatterns, boolean isOnline, String hostOfflineReason,
  49             String updatedTime) {
  50         this.name = name;
  51         this.id = id;
  52         this.jabberId = jabberId;
  53         this.publicKey = publicKey;
  54         this.mTokenUrlPatterns = tokenUrlPatterns;
  55         this.isOnline = isOnline;
  56         this.hostOfflineReason = hostOfflineReason;
  57
  58         ParsePosition parsePosition = new ParsePosition(0);
  59         SimpleDateFormat format = new SimpleDateFormat(RFC_3339_FORMAT, Locale.US);
  60         Date updatedTimeCandidate = format.parse(updatedTime, parsePosition);
  61         if (updatedTimeCandidate == null) {
  62             Log.e(TAG, "Unparseable host.updatedTime JSON: errorIndex = %d, input = %s",
  63                     parsePosition.getErrorIndex(), updatedTime);
  64             updatedTimeCandidate = FALLBACK_DATE_IN_THE_PAST;
  65         }
  66         this.updatedTime = updatedTimeCandidate;
  67     }
  68
  69     public String getHostOfflineReasonText(Context context) {
  70         if (TextUtils.isEmpty(hostOfflineReason)) {
  71             return context.getString(R.string.host_offline_tooltip);
  72         }
  73         try {
  74             String resourceName = "offline_reason_" + hostOfflineReason.toLowerCase(Locale.ENGLISH);
  75             int resourceId = context.getResources().getIdentifier(
  76                     resourceName, "string", context.getPackageName());
  77             return context.getString(resourceId);
  78         } catch (Resources.NotFoundException ignored) {
  79             return context.getString(R.string.offline_reason_unknown, hostOfflineReason);
  80         }
  81     }
  82
  83     public ArrayList<String> getTokenUrlPatterns() {
  84         return new ArrayList<String>(mTokenUrlPatterns);
  85     }
  86
  87     public static HostInfo create(JSONObject json) throws JSONException {
  88         assert json != null;
  89
  90         ArrayList<String> tokenUrlPatterns = new ArrayList<String>();
  91         JSONArray jsonPatterns = json.optJSONArray("tokenUrlPatterns");
  92
  93         if (jsonPatterns != null) {
  94             for (int i = 0; i < jsonPatterns.length(); i++) {
  95                 String pattern = jsonPatterns.getString(i);
  96                 if (pattern != null && !pattern.isEmpty()) {
  97                     tokenUrlPatterns.add(pattern);
  98                 }
  99             }
 100         }
 101         return new HostInfo(json.getString("hostName"), json.getString("hostId"),
 102                 json.optString("jabberId"), json.optString("publicKey"), tokenUrlPatterns,
 103                 json.optString("status").equals("ONLINE"), json.optString("hostOfflineReason"),
 104                 json.optString("updatedTime"));
 105     }
 106 }