1 /* 2 * Copyright 2022 Google LLC 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 package com.google.android.libraries.mobiledatadownload.file.backends; 17 18 import android.content.Context; 19 import android.net.Uri; 20 import com.google.android.libraries.mobiledatadownload.file.common.MalformedUriException; 21 import java.io.File; 22 23 /** 24 * Adapter for converting "android:" URIs into java.io.File. This is considered dangerous since it 25 * ignores parts of the Uri at the caller's peril, and thus is only available to whitelisted clients 26 * (mostly internal). 27 */ 28 public final class GenericUriAdapter implements UriAdapter { 29 30 private final AndroidUriAdapter androidUriAdapter; 31 private final FileUriAdapter fileUriAdapter; 32 GenericUriAdapter(Context context)33 private GenericUriAdapter(Context context) { 34 androidUriAdapter = AndroidUriAdapter.forContext(context); 35 fileUriAdapter = FileUriAdapter.instance(); 36 } 37 forContext(Context context)38 public static GenericUriAdapter forContext(Context context) { 39 return new GenericUriAdapter(context); 40 } 41 42 @Override toFile(Uri uri)43 public File toFile(Uri uri) throws MalformedUriException { 44 switch (uri.getScheme()) { 45 case AndroidUri.SCHEME_NAME: 46 return androidUriAdapter.toFile(uri); 47 case FileUri.SCHEME_NAME: 48 return fileUriAdapter.toFile(uri); 49 default: 50 throw new MalformedUriException("Couldn't convert URI to path: " + uri); 51 } 52 } 53 } 54