content: /*
   * Copyright (C) 2011 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.android.future.usb;
  
  /**
   * A class representing a USB accessory.
   */
  public class UsbAccessory {
  
      private final String mManufacturer;
      private final String mModel;
      private final String mDescription;
      private final String mVersion;
      private final String mUri;
      private final String mSerial;
  
      /* package */ UsbAccessory(android.hardware.usb.UsbAccessory accessory) {
          mManufacturer = accessory.getManufacturer();
          mModel = accessory.getModel();
          mDescription = accessory.getDescription();
          mVersion = accessory.getVersion();
          mUri = accessory.getUri();
          mSerial = accessory.getSerial();
      }
  
      /**
       * Returns the manufacturer of the accessory.
       *
       * @return the accessory manufacturer
       */
      public String getManufacturer() {
          return mManufacturer;
      }
  
      /**
       * Returns the model name of the accessory.
       *
       * @return the accessory model
       */
      public String getModel() {
          return mModel;
      }
  
      /**
       * Returns a user visible description of the accessory.
       *
       * @return the accessory description
       */
      public String getDescription() {
          return mDescription;
      }
  
      /**
       * Returns the version of the accessory.
       *
       * @return the accessory version
       */
      public String getVersion() {
          return mVersion;
      }
  
      /**
       * Returns the URI for the accessory.
       * This is an optional URI that might show information about the accessory
       * or provide the option to download an application for the accessory
       *
       * @return the accessory URI
       */
      public String getUri() {
          return mUri;
      }
  
      /**
       * Returns the unique serial number for the accessory.
       * This is an optional serial number that can be used to differentiate
       * between individual accessories of the same model and manufacturer
       *
       * @return the unique serial number
       */
      public String getSerial() {
          return mSerial;
      }
  
      private static boolean compare(String s1, String s2) {
          if (s1 == null) return (s2 == null);
          return s1.equals(s2);
      }
  
      @Override
      public boolean equals(Object obj) {
          if (obj instanceof UsbAccessory) {
              UsbAccessory accessory = (UsbAccessory)obj;
              return (compare(mManufacturer, accessory.getManufacturer()) &&
                      compare(mModel, accessory.getModel()) &&
                      compare(mDescription, accessory.getDescription()) &&
                      compare(mVersion, accessory.getVersion()) &&
                      compare(mUri, accessory.getUri()) &&
                      compare(mSerial, accessory.getSerial()));
          }
          return false;
      }
  
      @Override
      public int hashCode() {
          return ((mManufacturer == null ? 0 : mManufacturer.hashCode()) ^
                  (mModel == null ? 0 : mModel.hashCode()) ^
                  (mDescription == null ? 0 : mDescription.hashCode()) ^
                  (mVersion == null ? 0 : mVersion.hashCode()) ^
                  (mUri == null ? 0 : mUri.hashCode()) ^
                  (mSerial == null ? 0 : mSerial.hashCode()));
      }
  
      @Override
      public String toString() {
          return "UsbAccessory[mManufacturer=" + mManufacturer +
                              ", mModel=" + mModel +
                              ", mDescription=" + mDescription +
                              ", mVersion=" + mVersion +
                              ", mUri=" + mUri +
                              ", mSerial=" + mSerial + "]";
      }
  }
  