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      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 package com.android.mail.bitmap;
     17 
     18 import android.text.TextUtils;
     19 
     20 import com.android.bitmap.RequestKey;
     21 import com.android.mail.bitmap.ContactResolver.ContactDrawableInterface;
     22 
     23 import java.io.ByteArrayInputStream;
     24 import java.io.IOException;
     25 import java.io.InputStream;
     26 
     27 /**
     28  * A request object for contact images. ContactRequests have a destination because multiple
     29  * ContactRequests can share the same decoded data.
     30  */
     31 public class ContactRequest implements RequestKey {
     32 
     33     private final String mName;
     34     private final String mEmail;
     35 
     36     public byte[] bytes;
     37 
     38     public ContactRequest(final String name, final String email) {
     39         mName = name;
     40         mEmail = normalizeEmail(email);
     41     }
     42 
     43     private String normalizeEmail(final String email) {
     44         if (TextUtils.isEmpty(email)) {
     45             throw new IllegalArgumentException("Email must not be empty.");
     46         }
     47         // todo: b/10258788
     48         return email;
     49     }
     50 
     51     @Override
     52     public boolean equals(final Object o) {
     53         if (this == o) {
     54             return true;
     55         }
     56         if (o == null || getClass() != o.getClass()) {
     57             return false;
     58         }
     59 
     60         final ContactRequest that = (ContactRequest) o;
     61 
     62         // Only count email, so we can pull results out of the cache that are from other contact
     63         // requests.
     64         //noinspection RedundantIfStatement
     65         if (mEmail != null ? !mEmail.equals(that.mEmail) : that.mEmail != null) {
     66             return false;
     67         }
     68 
     69         return true;
     70     }
     71 
     72     @Override
     73     public int hashCode() {
     74         // Only count email, so we can pull results out of the cache that are from other contact
     75         // requests.
     76         return mEmail != null ? mEmail.hashCode() : 0;
     77     }
     78 
     79     @Override
     80     public String toString() {
     81         return "[" + super.toString() + " mName=" + mName + " mEmail=" + mEmail + "]";
     82     }
     83 
     84     @Override
     85     public Cancelable createFileDescriptorFactoryAsync(RequestKey key, Callback callback) {
     86         return null;
     87     }
     88 
     89     @Override
     90     public InputStream createInputStream() throws IOException {
     91         return new ByteArrayInputStream(bytes);
     92     }
     93 
     94     @Override
     95     public boolean hasOrientationExif() throws IOException {
     96         return false;
     97     }
     98 
     99     public String getEmail() {
    100         return mEmail;
    101     }
    102 
    103     public String getDisplayName() {
    104         return !TextUtils.isEmpty(mName) ? mName : mEmail;
    105     }
    106 
    107     /**
    108      * This ContactRequest wrapper provides implementations of equals() and hashcode() that
    109      * include the destination. We need to put multiple ContactRequests in a set,
    110      * but its implementations of equals() and hashcode() don't include the destination.
    111      */
    112     public static class ContactRequestHolder {
    113 
    114         public final ContactRequest contactRequest;
    115         public final ContactDrawableInterface destination;
    116 
    117         public ContactRequestHolder(final ContactRequest contactRequest,
    118                 final ContactDrawableInterface destination) {
    119             this.contactRequest = contactRequest;
    120             this.destination = destination;
    121         }
    122 
    123         @Override
    124         public boolean equals(final Object o) {
    125             if (this == o) {
    126                 return true;
    127             }
    128             if (o == null || getClass() != o.getClass()) {
    129                 return false;
    130             }
    131 
    132             final ContactRequestHolder that = (ContactRequestHolder) o;
    133 
    134             if (contactRequest != null ? !contactRequest.equals(that.contactRequest)
    135                     : that.contactRequest != null) {
    136                 return false;
    137             }
    138             //noinspection RedundantIfStatement
    139             if (destination != null ? !destination.equals(that.destination)
    140                     : that.destination != null) {
    141                 return false;
    142             }
    143 
    144             return true;
    145         }
    146 
    147         @Override
    148         public int hashCode() {
    149             int result = contactRequest != null ? contactRequest.hashCode() : 0;
    150             result = 31 * result + (destination != null ? destination.hashCode() : 0);
    151             return result;
    152         }
    153 
    154         @Override
    155         public String toString() {
    156             return contactRequest.toString();
    157         }
    158 
    159         public String getEmail() {
    160             return contactRequest.getEmail();
    161         }
    162 
    163         public String getDisplayName() {
    164             return contactRequest.getDisplayName();
    165         }
    166     }
    167 }
    168