1 /* 2 * Copyright (C) 2017 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.googlecode.android_scripting.provider; 18 19 import android.app.SearchManager; 20 import android.content.ContentProvider; 21 import android.content.ContentValues; 22 import android.content.UriMatcher; 23 import android.database.Cursor; 24 import android.database.MatrixCursor; 25 import android.net.Uri; 26 import android.provider.BaseColumns; 27 28 import com.google.common.base.Predicate; 29 import com.google.common.collect.Collections2; 30 import com.googlecode.android_scripting.facade.FacadeConfiguration; 31 import com.googlecode.android_scripting.rpc.MethodDescriptor; 32 import com.googlecode.android_scripting.rpc.Rpc; 33 import com.googlecode.android_scripting.rpc.RpcDeprecated; 34 import com.googlecode.android_scripting.rpc.RpcMinSdk; 35 36 import java.lang.reflect.Method; 37 import java.util.Collection; 38 39 public class ApiProvider extends ContentProvider { 40 41 public static final String SINGLE_MIME = "vnd.android.cursor.item/vnd.sl4a.api"; 42 43 private static final int SUGGESTIONS_ID = 1; 44 45 public static final String AUTHORITY = ApiProvider.class.getName().toLowerCase(); 46 public static final String SUGGESTIONS = "searchSuggestions/*/*"; 47 48 private final UriMatcher mUriMatcher; 49 private final Collection<MethodDescriptor> mMethodDescriptors; 50 ApiProvider()51 public ApiProvider() { 52 mUriMatcher = new UriMatcher(UriMatcher.NO_MATCH); 53 mUriMatcher.addURI(AUTHORITY, SUGGESTIONS, SUGGESTIONS_ID); 54 mMethodDescriptors = 55 Collections2.filter(FacadeConfiguration.collectMethodDescriptors(), 56 new Predicate<MethodDescriptor>() { 57 @Override 58 public boolean apply(MethodDescriptor descriptor) { 59 Method method = descriptor.getMethod(); 60 if (method.isAnnotationPresent(RpcDeprecated.class)) { 61 return false; 62 } else if (method.isAnnotationPresent(RpcMinSdk.class)) { 63 int requiredSdkLevel = method.getAnnotation(RpcMinSdk.class).value(); 64 if (FacadeConfiguration.getSdkLevel() < requiredSdkLevel) { 65 return false; 66 } 67 } 68 return true; 69 } 70 }); 71 } 72 73 @Override delete(Uri uri, String selection, String[] selectionArgs)74 public int delete(Uri uri, String selection, String[] selectionArgs) { 75 return 0; 76 } 77 78 @Override getType(Uri uri)79 public String getType(Uri uri) { 80 return SINGLE_MIME; 81 } 82 83 @Override insert(Uri uri, ContentValues values)84 public Uri insert(Uri uri, ContentValues values) { 85 return null; 86 } 87 88 @Override onCreate()89 public boolean onCreate() { 90 return true; 91 } 92 93 @Override query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder)94 public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, 95 String sortOrder) { 96 switch (mUriMatcher.match(uri)) { 97 case SUGGESTIONS_ID: 98 String query = uri.getLastPathSegment().toLowerCase(); 99 return querySearchSuggestions(query); 100 } 101 return null; 102 } 103 querySearchSuggestions(String query)104 private Cursor querySearchSuggestions(String query) { 105 String[] columns = 106 { BaseColumns._ID, SearchManager.SUGGEST_COLUMN_TEXT_1, 107 SearchManager.SUGGEST_COLUMN_TEXT_2, SearchManager.SUGGEST_COLUMN_QUERY }; 108 MatrixCursor cursor = new MatrixCursor(columns); 109 int index = 0; 110 for (MethodDescriptor descriptor : mMethodDescriptors) { 111 String name = descriptor.getMethod().getName(); 112 if (!name.toLowerCase().contains(query)) { 113 continue; 114 } 115 String description = descriptor.getMethod().getAnnotation(Rpc.class).description(); 116 description = description.replaceAll("\\s+", " "); 117 Object[] row = { index, name, description, name }; 118 cursor.addRow(row); 119 ++index; 120 } 121 return cursor; 122 } 123 124 @Override update(Uri uri, ContentValues values, String selection, String[] selectionArgs)125 public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { 126 return 0; 127 } 128 } 129