1 /*
2  * Copyright (C) 2011 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 com.android.contacts.common.util;
18 
19 import android.net.Uri;
20 
21 /**
22  * Utility methods for dealing with URIs.
23  */
24 public class UriUtils {
25     /** Static helper, not instantiable. */
UriUtils()26     private UriUtils() {}
27 
28     /** Checks whether two URI are equal, taking care of the case where either is null. */
areEqual(Uri uri1, Uri uri2)29     public static boolean areEqual(Uri uri1, Uri uri2) {
30         if (uri1 == null && uri2 == null) {
31             return true;
32         }
33         if (uri1 == null || uri2 == null) {
34             return false;
35         }
36         return uri1.equals(uri2);
37     }
38 
39     /** Parses a string into a URI and returns null if the given string is null. */
parseUriOrNull(String uriString)40     public static Uri parseUriOrNull(String uriString) {
41         if (uriString == null) {
42             return null;
43         }
44         return Uri.parse(uriString);
45     }
46 
47     /** Converts a URI into a string, returns null if the given URI is null. */
uriToString(Uri uri)48     public static String uriToString(Uri uri) {
49         return uri == null ? null : uri.toString();
50     }
51 
isEncodedContactUri(Uri uri)52     public static boolean isEncodedContactUri(Uri uri) {
53         if (uri == null) {
54             return false;
55         }
56         final String lastPathSegment = uri.getLastPathSegment();
57         if (lastPathSegment == null) {
58             return false;
59         }
60         return lastPathSegment.equals(Constants.LOOKUP_URI_ENCODED);
61     }
62 }
63