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
17package com.example.android.lifecycle.util;
18
19import java.util.*;
20
21public class StatusTracker {
22  private Map<String, String> mStatusMap;
23  private List<String> mMethodList;
24  private static StatusTracker ourInstance = new StatusTracker();
25  private static final String STATUS_SUFFIX = "ed";
26
27  public static StatusTracker getInstance() {
28    return ourInstance;
29  }
30
31  private StatusTracker() {
32    mStatusMap = new LinkedHashMap<String, String>();
33    mMethodList = new ArrayList<String>();
34  }
35
36  public List<String> getMethodList() {
37    return mMethodList;
38  }
39
40  public void clear() {
41    mMethodList.clear();
42    mStatusMap.clear();
43  }
44
45  /**
46   * Adds the status value for the given activityName into the Map.
47   *
48   * @param activityName
49   * @param status
50   */
51  public void setStatus(String activityName, String status) {
52    mMethodList.add(activityName + "." + status + "()");
53    if (mStatusMap.containsKey(activityName)) mStatusMap.remove(activityName);
54    mStatusMap.put(activityName, status);
55  }
56
57  /**
58   * Gets the status value for the given activityName.
59   *
60   * @param activityName
61   * @return
62   */
63  public String getStatus(String activityName) {
64    String status = mStatusMap.get(activityName);
65    status = status.substring(2, status.length());
66
67    // String manipulation to ensure the status value is spelled correctly.
68    if (status.endsWith("e")) {
69      status = status.substring(0, status.length() - 1);
70    }
71    if (status.endsWith("p")) {
72      status = status + "p";
73    }
74    status = status + STATUS_SUFFIX;
75    return status;
76  }
77
78  public Set<String> keySet() {
79    return mStatusMap.keySet();
80  }
81}
82