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      1 /*
      2  * Copyright (C) 2013 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 android.print;
     18 
     19 import android.annotation.NonNull;
     20 import android.content.ComponentName;
     21 import android.os.Parcel;
     22 import android.os.Parcelable;
     23 
     24 import com.android.internal.util.Preconditions;
     25 
     26 /**
     27  * This class represents the unique id of a printer.
     28  */
     29 public final class PrinterId implements Parcelable {
     30 
     31     private final @NonNull ComponentName mServiceName;
     32 
     33     private final @NonNull String mLocalId;
     34 
     35     /**
     36      * Creates a new instance.
     37      *
     38      * @param serviceName The managing print service.
     39      * @param localId The locally unique id within the managing service.
     40      *
     41      * @hide
     42      */
     43     public PrinterId(@NonNull ComponentName serviceName, @NonNull String localId) {
     44         mServiceName = serviceName;
     45         mLocalId = localId;
     46     }
     47 
     48     private PrinterId(@NonNull Parcel parcel) {
     49         mServiceName = Preconditions.checkNotNull((ComponentName) parcel.readParcelable(null));
     50         mLocalId = Preconditions.checkNotNull(parcel.readString());
     51     }
     52 
     53     /**
     54      * The id of the print service this printer is managed by.
     55      *
     56      * @return The print service component name.
     57      *
     58      * @hide
     59      */
     60     public @NonNull ComponentName getServiceName() {
     61         return mServiceName;
     62     }
     63 
     64     /**
     65      * Gets the id of this printer which is unique in the context
     66      * of the print service that manages it.
     67      *
     68      * @return The printer name.
     69      */
     70     public @NonNull String getLocalId() {
     71         return mLocalId;
     72     }
     73 
     74     @Override
     75     public int describeContents() {
     76         return 0;
     77     }
     78 
     79     @Override
     80     public void writeToParcel(Parcel parcel, int flags) {
     81         parcel.writeParcelable(mServiceName, flags);
     82         parcel.writeString(mLocalId);
     83     }
     84 
     85     @Override
     86     public boolean equals(Object object) {
     87         if (this == object) {
     88             return true;
     89         }
     90         if (object == null) {
     91             return false;
     92         }
     93         if (getClass() != object.getClass()) {
     94             return false;
     95         }
     96         PrinterId other = (PrinterId) object;
     97         if (!mServiceName.equals(other.mServiceName)) {
     98             return false;
     99         }
    100         if (!mLocalId.equals(other.mLocalId)) {
    101             return false;
    102         }
    103         return true;
    104     }
    105 
    106     @Override
    107     public int hashCode() {
    108         final int prime = 31;
    109         int hashCode = 1;
    110         hashCode = prime * hashCode + mServiceName.hashCode();
    111         hashCode = prime * hashCode + mLocalId.hashCode();
    112         return hashCode;
    113     }
    114 
    115     @Override
    116     public String toString() {
    117         StringBuilder builder = new StringBuilder();
    118         builder.append("PrinterId{");
    119         builder.append("serviceName=").append(mServiceName.flattenToString());
    120         builder.append(", localId=").append(mLocalId);
    121         builder.append('}');
    122         return builder.toString();
    123     }
    124 
    125     public static final Parcelable.Creator<PrinterId> CREATOR =
    126             new Creator<PrinterId>() {
    127         @Override
    128         public PrinterId createFromParcel(Parcel parcel) {
    129             return new PrinterId(parcel);
    130         }
    131 
    132         @Override
    133         public PrinterId[] newArray(int size) {
    134             return new PrinterId[size];
    135         }
    136     };
    137 }
    138