UsbAccessory.java revision 638d7cb3ee0bb3596b01dc19eca9456fa72a36e0 
1/*
2 * Copyright (C) 2011 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 android.hardware.usb;
18
19import android.os.Bundle;
20import android.os.Parcel;
21import android.os.Parcelable;
22import android.util.Log;
23
24/**
25 * A class representing a USB accessory.
26 * @hide
27 */
28public class UsbAccessory implements Parcelable {
29
30    private static final String TAG = "UsbAccessory";
31
32    private final String mManufacturer;
33    private final String mModel;
34    private final String mDescription;
35    private final String mVersion;
36    private final String mUri;
37    private final String mSerial;
38
39    /**
40     * UsbAccessory should only be instantiated by UsbService implementation
41     * @hide
42     */
43    public UsbAccessory(String manufacturer, String model, String description,
44            String version, String uri, String serial) {
45        mManufacturer = manufacturer;
46        mModel = model;
47        mDescription = description;
48        mVersion = version;
49        mUri = uri;
50        mSerial = serial;
51    }
52
53    /**
54     * UsbAccessory should only be instantiated by UsbService implementation
55     * @hide
56     */
57    public UsbAccessory(String[] strings) {
58        mManufacturer = strings[0];
59        mModel = strings[1];
60        mDescription = strings[2];
61        mVersion = strings[3];
62        mUri = strings[4];
63        mSerial = strings[5];
64    }
65
66    /**
67     * Returns the manufacturer of the accessory.
68     *
69     * @return the accessory manufacturer
70     */
71    public String getManufacturer() {
72        return mManufacturer;
73    }
74
75    /**
76     * Returns the model name of the accessory.
77     *
78     * @return the accessory model
79     */
80    public String getModel() {
81        return mModel;
82    }
83
84    /**
85     * Returns a user visible description of the accessory.
86     *
87     * @return the accessory description
88     */
89    public String getDescription() {
90        return mDescription;
91    }
92
93    /**
94     * Returns the version of the accessory.
95     *
96     * @return the accessory version
97     */
98    public String getVersion() {
99        return mVersion;
100    }
101
102    /**
103     * Returns the URI for the accessory.
104     * This is an optional URI that might show information about the accessory
105     * or provide the option to download an application for the accessory
106     *
107     * @return the accessory URI
108     */
109    public String getUri() {
110        return mUri;
111    }
112
113    /**
114     * Returns the unique serial number for the accessory.
115     * This is an optional serial number that can be used to differentiate
116     * between individual accessories of the same model and manufacturer
117     *
118     * @return the unique serial number
119     */
120    public String getSerial() {
121        return mSerial;
122    }
123
124    private static boolean compare(String s1, String s2) {
125        if (s1 == null) return (s2 == null);
126        return s1.equals(s2);
127    }
128
129    @Override
130    public boolean equals(Object obj) {
131        if (obj instanceof UsbAccessory) {
132            UsbAccessory accessory = (UsbAccessory)obj;
133            return (compare(mManufacturer, accessory.getManufacturer()) &&
134                    compare(mModel, accessory.getModel()) &&
135                    compare(mDescription, accessory.getDescription()) &&
136                    compare(mVersion, accessory.getVersion()) &&
137                    compare(mUri, accessory.getUri()) &&
138                    compare(mSerial, accessory.getSerial()));
139        }
140        return false;
141    }
142
143    @Override
144    public int hashCode() {
145        return ((mManufacturer == null ? 0 : mManufacturer.hashCode()) ^
146                (mModel == null ? 0 : mModel.hashCode()) ^
147                (mDescription == null ? 0 : mDescription.hashCode()) ^
148                (mVersion == null ? 0 : mVersion.hashCode()) ^
149                (mUri == null ? 0 : mUri.hashCode()) ^
150                (mSerial == null ? 0 : mSerial.hashCode()));
151    }
152
153    @Override
154    public String toString() {
155        return "UsbAccessory[mManufacturer=" + mManufacturer +
156                            ", mModel=" + mModel +
157                            ", mDescription=" + mDescription +
158                            ", mVersion=" + mVersion +
159                            ", mUri=" + mUri +
160                            ", mSerial=" + mSerial + "]";
161    }
162
163    public static final Parcelable.Creator<UsbAccessory> CREATOR =
164        new Parcelable.Creator<UsbAccessory>() {
165        public UsbAccessory createFromParcel(Parcel in) {
166            String manufacturer = in.readString();
167            String model = in.readString();
168            String description = in.readString();
169            String version = in.readString();
170            String uri = in.readString();
171            String serial = in.readString();
172            return new UsbAccessory(manufacturer, model, description, version, uri, serial);
173        }
174
175        public UsbAccessory[] newArray(int size) {
176            return new UsbAccessory[size];
177        }
178    };
179
180    public int describeContents() {
181        return 0;
182    }
183
184    public void writeToParcel(Parcel parcel, int flags) {
185        parcel.writeString(mManufacturer);
186        parcel.writeString(mModel);
187        parcel.writeString(mDescription);
188        parcel.writeString(mVersion);
189        parcel.writeString(mUri);
190        parcel.writeString(mSerial);
191   }
192}
193