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 17 package com.android.future.usb; 18 19 /** 20 * A class representing a USB accessory. 21 */ 22 public class UsbAccessory { 23 24 private final String mManufacturer; 25 private final String mModel; 26 private final String mDescription; 27 private final String mVersion; 28 private final String mUri; 29 private final String mSerial; 30 UsbAccessory(android.hardware.usb.UsbAccessory accessory)31 /* package */ UsbAccessory(android.hardware.usb.UsbAccessory accessory) { 32 mManufacturer = accessory.getManufacturer(); 33 mModel = accessory.getModel(); 34 mDescription = accessory.getDescription(); 35 mVersion = accessory.getVersion(); 36 mUri = accessory.getUri(); 37 mSerial = accessory.getSerial(); 38 } 39 40 /** 41 * Returns the manufacturer of the accessory. 42 * 43 * @return the accessory manufacturer 44 */ getManufacturer()45 public String getManufacturer() { 46 return mManufacturer; 47 } 48 49 /** 50 * Returns the model name of the accessory. 51 * 52 * @return the accessory model 53 */ getModel()54 public String getModel() { 55 return mModel; 56 } 57 58 /** 59 * Returns a user visible description of the accessory. 60 * 61 * @return the accessory description 62 */ getDescription()63 public String getDescription() { 64 return mDescription; 65 } 66 67 /** 68 * Returns the version of the accessory. 69 * 70 * @return the accessory version 71 */ getVersion()72 public String getVersion() { 73 return mVersion; 74 } 75 76 /** 77 * Returns the URI for the accessory. 78 * This is an optional URI that might show information about the accessory 79 * or provide the option to download an application for the accessory 80 * 81 * @return the accessory URI 82 */ getUri()83 public String getUri() { 84 return mUri; 85 } 86 87 /** 88 * Returns the unique serial number for the accessory. 89 * This is an optional serial number that can be used to differentiate 90 * between individual accessories of the same model and manufacturer 91 * 92 * @return the unique serial number 93 */ getSerial()94 public String getSerial() { 95 return mSerial; 96 } 97 compare(String s1, String s2)98 private static boolean compare(String s1, String s2) { 99 if (s1 == null) return (s2 == null); 100 return s1.equals(s2); 101 } 102 103 @Override equals(Object obj)104 public boolean equals(Object obj) { 105 if (obj instanceof UsbAccessory) { 106 UsbAccessory accessory = (UsbAccessory)obj; 107 return (compare(mManufacturer, accessory.getManufacturer()) && 108 compare(mModel, accessory.getModel()) && 109 compare(mDescription, accessory.getDescription()) && 110 compare(mVersion, accessory.getVersion()) && 111 compare(mUri, accessory.getUri()) && 112 compare(mSerial, accessory.getSerial())); 113 } 114 return false; 115 } 116 117 @Override hashCode()118 public int hashCode() { 119 return ((mManufacturer == null ? 0 : mManufacturer.hashCode()) ^ 120 (mModel == null ? 0 : mModel.hashCode()) ^ 121 (mDescription == null ? 0 : mDescription.hashCode()) ^ 122 (mVersion == null ? 0 : mVersion.hashCode()) ^ 123 (mUri == null ? 0 : mUri.hashCode()) ^ 124 (mSerial == null ? 0 : mSerial.hashCode())); 125 } 126 127 @Override toString()128 public String toString() { 129 return "UsbAccessory[mManufacturer=" + mManufacturer + 130 ", mModel=" + mModel + 131 ", mDescription=" + mDescription + 132 ", mVersion=" + mVersion + 133 ", mUri=" + mUri + 134 ", mSerial=" + mSerial + "]"; 135 } 136 } 137