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 android.service.autofill; 18 19 import static android.view.autofill.Helper.sDebug; 20 21 import android.annotation.NonNull; 22 import android.os.Parcel; 23 import android.os.Parcelable; 24 import android.util.Log; 25 26 import com.android.internal.util.Preconditions; 27 28 /** 29 * Compound validator that only returns {@code true} on {@link #isValid(ValueFinder)} if all 30 * of its subvalidators return {@code true} as well. 31 * 32 * <p>Used to implement an {@code AND} logical operation. 33 * 34 * @hide 35 */ 36 final class RequiredValidators extends InternalValidator { 37 38 private static final String TAG = "RequiredValidators"; 39 40 @NonNull private final InternalValidator[] mValidators; 41 42 RequiredValidators(@NonNull InternalValidator[] validators) { 43 mValidators = Preconditions.checkArrayElementsNotNull(validators, "validators"); 44 } 45 46 @Override 47 public boolean isValid(@NonNull ValueFinder finder) { 48 for (InternalValidator validator : mValidators) { 49 final boolean valid = validator.isValid(finder); 50 if (sDebug) Log.d(TAG, "isValid(" + validator + "): " + valid); 51 if (!valid) return false; 52 } 53 return true; 54 } 55 56 ///////////////////////////////////// 57 // Object "contract" methods. // 58 ///////////////////////////////////// 59 @Override 60 public String toString() { 61 if (!sDebug) return super.toString(); 62 63 return new StringBuilder("RequiredValidators: [validators=").append(mValidators) 64 .append("]") 65 .toString(); 66 } 67 68 ///////////////////////////////////// 69 // Parcelable "contract" methods. // 70 ///////////////////////////////////// 71 @Override 72 public int describeContents() { 73 return 0; 74 } 75 76 @Override 77 public void writeToParcel(Parcel dest, int flags) { 78 dest.writeParcelableArray(mValidators, flags); 79 } 80 81 public static final Parcelable.Creator<RequiredValidators> CREATOR = 82 new Parcelable.Creator<RequiredValidators>() { 83 @Override 84 public RequiredValidators createFromParcel(Parcel parcel) { 85 return new RequiredValidators(parcel 86 .readParcelableArray(null, InternalValidator.class)); 87 } 88 89 @Override 90 public RequiredValidators[] newArray(int size) { 91 return new RequiredValidators[size]; 92 } 93 }; 94 } 95
