content: /*
   * Copyright (C) 2017 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 android.companion;
  
  import static android.companion.BluetoothDeviceFilterUtils.getDeviceDisplayNameInternal;
  import static android.companion.BluetoothDeviceFilterUtils.patternFromString;
  import static android.companion.BluetoothDeviceFilterUtils.patternToString;
  
  import android.annotation.NonNull;
  import android.annotation.Nullable;
  import android.annotation.SuppressLint;
  import android.bluetooth.BluetoothDevice;
  import android.bluetooth.le.ScanFilter;
  import android.net.wifi.ScanResult;
  import android.os.Parcel;
  import android.provider.OneTimeUseBuilder;
  
  import java.util.Objects;
  import java.util.regex.Pattern;
  
  /**
   * A filter for Wifi devices
   *
   * @see ScanFilter
   */
  public final class WifiDeviceFilter implements DeviceFilter<ScanResult> {
  
      private final Pattern mNamePattern;
  
      private WifiDeviceFilter(Pattern namePattern) {
          mNamePattern = namePattern;
      }
  
      @SuppressLint("ParcelClassLoader")
      private WifiDeviceFilter(Parcel in) {
          this(patternFromString(in.readString()));
      }
  
      /** @hide */
      @Nullable
      public Pattern getNamePattern() {
          return mNamePattern;
      }
  
  
      /** @hide */
      @Override
      public boolean matches(ScanResult device) {
          return BluetoothDeviceFilterUtils.matchesName(getNamePattern(), device);
      }
  
      /** @hide */
      @Override
      public String getDeviceDisplayName(ScanResult device) {
          return getDeviceDisplayNameInternal(device);
      }
  
      /** @hide */
      @Override
      public int getMediumType() {
          return MEDIUM_TYPE_WIFI;
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          WifiDeviceFilter that = (WifiDeviceFilter) o;
          return Objects.equals(mNamePattern, that.mNamePattern);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(mNamePattern);
      }
  
      @Override
      public void writeToParcel(Parcel dest, int flags) {
          dest.writeString(patternToString(getNamePattern()));
      }
  
      @Override
      public int describeContents() {
          return 0;
      }
  
      public static final @android.annotation.NonNull Creator<WifiDeviceFilter> CREATOR
              = new Creator<WifiDeviceFilter>() {
          @Override
          public WifiDeviceFilter createFromParcel(Parcel in) {
              return new WifiDeviceFilter(in);
          }
  
          @Override
          public WifiDeviceFilter[] newArray(int size) {
              return new WifiDeviceFilter[size];
          }
      };
  
      /**
       * Builder for {@link WifiDeviceFilter}
       */
      public static final class Builder extends OneTimeUseBuilder<WifiDeviceFilter> {
          private Pattern mNamePattern;
  
          /**
           * @param regex if set, only devices with {@link BluetoothDevice#getName name} matching the
           *              given regular expression will be shown
           * @return self for chaining
           */
          public Builder setNamePattern(@Nullable Pattern regex) {
              checkNotUsed();
              mNamePattern = regex;
              return this;
          }
  
          /** @inheritDoc */
          @Override
          @NonNull
          public WifiDeviceFilter build() {
              markUsed();
              return new WifiDeviceFilter(mNamePattern);
          }
      }
  }
  