| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.view.autofill; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| |
| import java.util.Collection; |
| |
| /** @hide */ |
| public final class Helper { |
| |
| // Debug-level flags are defined when service is bound. |
| public static boolean sDebug = false; |
| public static boolean sVerbose = false; |
| |
| /** |
| * Appends {@code value} to the {@code builder} redacting its contents. |
| */ |
| public static void appendRedacted(@NonNull StringBuilder builder, |
| @Nullable CharSequence value) { |
| builder.append(getRedacted(value)); |
| } |
| |
| /** |
| * Gets the redacted version of a value. |
| */ |
| @NonNull |
| public static String getRedacted(@Nullable CharSequence value) { |
| return (value == null) ? "null" : value.length() + "_chars"; |
| } |
| |
| /** |
| * Appends {@code values} to the {@code builder} redacting its contents. |
| */ |
| public static void appendRedacted(@NonNull StringBuilder builder, @Nullable String[] values) { |
| if (values == null) { |
| builder.append("N/A"); |
| return; |
| } |
| builder.append("["); |
| for (String value : values) { |
| builder.append(" '"); |
| appendRedacted(builder, value); |
| builder.append("'"); |
| } |
| builder.append(" ]"); |
| } |
| |
| /** |
| * Convers a collaction of {@link AutofillId AutofillIds} to an array. |
| * @param collection The collection. |
| * @return The array. |
| */ |
| public static @NonNull AutofillId[] toArray(Collection<AutofillId> collection) { |
| if (collection == null) { |
| return new AutofillId[0]; |
| } |
| final AutofillId[] array = new AutofillId[collection.size()]; |
| collection.toArray(array); |
| return array; |
| } |
| |
| private Helper() { |
| throw new UnsupportedOperationException("contains static members only"); |
| } |
| } |