content: /*
   * Copyright (C) 2013 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.print;
  
  import android.annotation.NonNull;
  import android.os.Parcel;
  import android.os.Parcelable;
  
  import com.android.internal.util.Preconditions;
  
  import java.util.UUID;
  
  /**
   * This class represents the id of a print job.
   */
  public final class PrintJobId implements Parcelable {
      private final @NonNull String mValue;
  
      /**
       * Creates a new instance.
       *
       * @hide
       */
      public PrintJobId() {
          this(UUID.randomUUID().toString());
      }
  
      /**
       * Creates a new instance.
       *
       * @param value The internal value.
       *
       * @hide
       */
      public PrintJobId(@NonNull String value) {
          mValue = value;
      }
  
      @Override
      public int hashCode() {
          final int prime = 31;
          int result = 1;
          result = prime * result + mValue.hashCode();
          return result;
      }
  
      @Override
      public boolean equals(Object obj) {
          if (this == obj) {
              return true;
          }
          if (obj == null) {
              return false;
          }
          if (getClass() != obj.getClass()) {
              return false;
          }
          PrintJobId other = (PrintJobId) obj;
          if (!mValue.equals(other.mValue)) {
              return false;
          }
          return true;
      }
  
      @Override
      public void writeToParcel(Parcel parcel, int flags) {
          parcel.writeString(mValue);
      }
  
      @Override
      public int describeContents() {
          return 0;
      }
  
      /**
       * Flattens this id to a string.
       *
       * @return The flattened id.
       *
       * @hide
       */
      public @NonNull String flattenToString() {
          return mValue;
      }
  
      /**
       * Unflattens a print job id from a string.
       *
       * @param string The string.
       * @return The unflattened id, or null if the string is malformed.
       *
       * @hide
       */
      public static @NonNull PrintJobId unflattenFromString(@NonNull String string) {
          return new PrintJobId(string);
      }
  
      public static final @android.annotation.NonNull Parcelable.Creator<PrintJobId> CREATOR =
              new Parcelable.Creator<PrintJobId>() {
          @Override
          public PrintJobId createFromParcel(Parcel parcel) {
              return new PrintJobId(Preconditions.checkNotNull(parcel.readString()));
          }
  
          @Override
          public PrintJobId[] newArray(int size) {
              return new PrintJobId[size];
          }
      };
  }
  