1 /* 2 * Copyright (C) 2010 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.providers.calendar; 18 19 import android.net.Uri; 20 21 public class QueryParameterUtils { 22 23 public static boolean readBooleanQueryParameter(Uri uri, String name, 24 boolean defaultValue) { 25 final String flag = getQueryParameter(uri, name); 26 return flag == null 27 ? defaultValue 28 : (!"false".equals(flag.toLowerCase()) && !"0".equals(flag.toLowerCase())); 29 } 30 31 // Duplicated from ContactsProvider2. 32 /** 33 * A fast re-implementation of {@link android.net.Uri#getQueryParameter} 34 */ 35 public static String getQueryParameter(Uri uri, String parameter) { 36 String query = uri.getEncodedQuery(); 37 if (query == null) { 38 return null; 39 } 40 41 int queryLength = query.length(); 42 int parameterLength = parameter.length(); 43 44 String value; 45 int index = 0; 46 while (true) { 47 index = query.indexOf(parameter, index); 48 if (index == -1) { 49 return null; 50 } 51 52 index += parameterLength; 53 54 if (queryLength == index) { 55 return null; 56 } 57 58 if (query.charAt(index) == '=') { 59 index++; 60 break; 61 } 62 } 63 64 int ampIndex = query.indexOf('&', index); 65 if (ampIndex == -1) { 66 value = query.substring(index); 67 } else { 68 value = query.substring(index, ampIndex); 69 } 70 71 return Uri.decode(value); 72 } 73 } 74
