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      1 /*
      2  * Copyright (C) 2013 Google Inc.
      3  * Licensed to The Android Open Source Project.
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at
      8  *
      9  *      http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  */
     17 
     18 package com.android.mail.utils;
     19 
     20 import android.net.Uri;
     21 
     22 /**
     23  * A holder for a Folder {@link Uri} that can be compared, ignoring any query parameters.
     24  */
     25 public class FolderUri {
     26     public static final FolderUri EMPTY = new FolderUri(Uri.EMPTY);
     27 
     28     /**
     29      * The full {@link Uri}. This should be used for any queries.
     30      */
     31     public final Uri fullUri;
     32     /**
     33      * Equivalent to {@link #fullUri}, but without any query parameters, and can safely be used in
     34      * comparisons to determine if two {@link Uri}s point to the same object.
     35      */
     36     private Uri mComparisonUri = null;
     37 
     38     public FolderUri(final Uri uri) {
     39         fullUri = uri;
     40     }
     41 
     42     private static Uri buildComparisonUri(final Uri fullUri) {
     43         final Uri.Builder builder = new Uri.Builder();
     44         builder.scheme(fullUri .getScheme());
     45         builder.encodedAuthority(fullUri.getEncodedAuthority());
     46         builder.encodedPath(fullUri.getEncodedPath());
     47 
     48         return builder.build();
     49     }
     50 
     51     public Uri getComparisonUri() {
     52         if (mComparisonUri == null) {
     53             mComparisonUri = buildComparisonUri(fullUri);
     54         }
     55 
     56         return mComparisonUri;
     57     }
     58 
     59     @Override
     60     public int hashCode() {
     61         return getComparisonUri().hashCode();
     62     }
     63 
     64     @Override
     65     public boolean equals(final Object o) {
     66         if (o instanceof FolderUri) {
     67             return getComparisonUri().equals(((FolderUri) o).getComparisonUri());
     68         }
     69 
     70         return getComparisonUri().equals(o);
     71     }
     72 
     73     @Override
     74     public String toString() {
     75         return fullUri.toString();
     76     }
     77 }
     78