1 /*
2  * Copyright (C) 2013 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.example.bitmapsample;
18 
19 import com.android.bitmap.RequestKey;
20 
21 import java.io.IOException;
22 import java.io.InputStream;
23 import java.net.MalformedURLException;
24 import java.net.URL;
25 
26 public class BitmapRequestKeyImpl implements RequestKey {
27     public final String mUriString;
28     public final URL mUrl;
29 
30     private boolean mSlept;
31 
BitmapRequestKeyImpl(String uriString)32     public BitmapRequestKeyImpl(String uriString) {
33         mUriString = uriString;
34         URL url = null;
35         try {
36             url = new URL(uriString);
37         } catch (MalformedURLException e) {
38             e.printStackTrace();
39         }
40         mUrl = url;
41         mSlept = false;
42     }
43 
44     @Override
equals(Object o)45     public boolean equals(Object o) {
46         if (o == null || !(o instanceof BitmapRequestKeyImpl)) {
47             return false;
48         }
49         final BitmapRequestKeyImpl other = (BitmapRequestKeyImpl) o;
50         return mUriString.equals(other.mUriString);
51     }
52 
53     @Override
hashCode()54     public int hashCode() {
55         int hash = 17;
56         hash += 31 * hash + mUriString.hashCode();
57         return hash;
58     }
59 
60     @Override
toString()61     public String toString() {
62         final StringBuilder sb = new StringBuilder("[");
63         sb.append(mUriString);
64         sb.append("]");
65         return sb.toString();
66     }
67 
68     @Override
createFileDescriptorFactoryAsync(final RequestKey key, final Callback callback)69     public Cancelable createFileDescriptorFactoryAsync(final RequestKey key,
70             final Callback callback) {
71         return null;
72     }
73 
74     @Override
createInputStream()75     public InputStream createInputStream() throws IOException {
76         // Artificially sleep for (deterministically) random amount of time.
77         if (!mSlept) {
78             // Character difference between shortest and longest uri.
79             final long spread = 26;
80             // Maximum amount of time to sleep.
81             final long max = 3;
82             final long duration = (long) ((float) (mUriString.length() % spread) / spread * max
83                     * 1000);
84             try {
85                 Thread.sleep(duration);
86             } catch (InterruptedException ignored) {
87             }
88             mSlept = true;
89         }
90         return mUrl.openStream();
91     }
92 
93     @Override
hasOrientationExif()94     public boolean hasOrientationExif() throws IOException {
95         return false;
96     }
97 
98 }