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      1 /*
      2  * Copyright (C) 2016 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.tv.util;
     18 
     19 import android.app.SearchManager;
     20 import android.content.UriMatcher;
     21 import android.media.tv.TvContract;
     22 import android.net.Uri;
     23 import android.support.annotation.IntDef;
     24 
     25 import com.android.tv.search.LocalSearchProvider;
     26 
     27 import java.lang.annotation.Retention;
     28 import java.lang.annotation.RetentionPolicy;
     29 
     30 /**
     31  * Utility class to aid in matching URIs in TvProvider.
     32  */
     33 public class TvUriMatcher {
     34     private static final UriMatcher URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH);
     35 
     36     @Retention(RetentionPolicy.SOURCE)
     37     @IntDef({MATCH_CHANNEL, MATCH_CHANNEL_ID, MATCH_PROGRAM, MATCH_PROGRAM_ID,
     38             MATCH_RECORDED_PROGRAM, MATCH_RECORDED_PROGRAM_ID, MATCH_WATCHED_PROGRAM_ID,
     39             MATCH_ON_DEVICE_SEARCH})
     40     private @interface TvProviderUriMatchCode {}
     41     /** The code for the channels URI. */
     42     public static final int MATCH_CHANNEL = 1;
     43     /** The code for the channel URI. */
     44     public static final int MATCH_CHANNEL_ID = 2;
     45     /** The code for the programs URI. */
     46     public static final int MATCH_PROGRAM = 3;
     47     /** The code for the program URI. */
     48     public static final int MATCH_PROGRAM_ID = 4;
     49     /** The code for the recorded programs URI. */
     50     public static final int MATCH_RECORDED_PROGRAM = 5;
     51     /** The code for the recorded program URI. */
     52     public static final int MATCH_RECORDED_PROGRAM_ID = 6;
     53     /** The code for the watched program URI. */
     54     public static final int MATCH_WATCHED_PROGRAM_ID = 7;
     55     /** The code for the on-device search URI. */
     56     public static final int MATCH_ON_DEVICE_SEARCH = 8;
     57     static {
     58         URI_MATCHER.addURI(TvContract.AUTHORITY, "channel", MATCH_CHANNEL);
     59         URI_MATCHER.addURI(TvContract.AUTHORITY, "channel/#", MATCH_CHANNEL_ID);
     60         URI_MATCHER.addURI(TvContract.AUTHORITY, "program", MATCH_PROGRAM);
     61         URI_MATCHER.addURI(TvContract.AUTHORITY, "program/#", MATCH_PROGRAM_ID);
     62         URI_MATCHER.addURI(TvContract.AUTHORITY, "recorded_program", MATCH_RECORDED_PROGRAM);
     63         URI_MATCHER.addURI(TvContract.AUTHORITY, "recorded_program/#", MATCH_RECORDED_PROGRAM_ID);
     64         URI_MATCHER.addURI(TvContract.AUTHORITY, "watched_program/#", MATCH_WATCHED_PROGRAM_ID);
     65         URI_MATCHER.addURI(LocalSearchProvider.AUTHORITY,
     66                 SearchManager.SUGGEST_URI_PATH_QUERY + "/*", MATCH_ON_DEVICE_SEARCH);
     67     }
     68 
     69     private TvUriMatcher() { }
     70 
     71     /**
     72      * Try to match against the path in a url.
     73      *
     74      * @see UriMatcher#match
     75      */
     76     @SuppressWarnings("WrongConstant")
     77     @TvProviderUriMatchCode public static int match(Uri uri) {
     78         return URI_MATCHER.match(uri);
     79     }
     80 }
     81