89 lines
3.2 KiB
Java
89 lines
3.2 KiB
Java
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/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.app;
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import android.compat.Compatibility;
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import android.os.Process;
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import com.android.internal.compat.ChangeReporter;
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import java.util.Arrays;
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/**
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* App process implementation of the {@link Compatibility} API.
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*
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* @hide
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*/
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public final class AppCompatCallbacks implements Compatibility.BehaviorChangeDelegate {
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private final long[] mDisabledChanges;
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private final long[] mLoggableChanges;
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private final ChangeReporter mChangeReporter;
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/**
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* Install this class into the current process using the disabled and loggable changes lists.
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*
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* @param disabledChanges Set of compatibility changes that are disabled for this process.
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* @param loggableChanges Set of compatibility changes that we want to log.
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*/
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public static void install(long[] disabledChanges, long[] loggableChanges) {
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Compatibility.setBehaviorChangeDelegate(
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new AppCompatCallbacks(disabledChanges, loggableChanges));
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}
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private AppCompatCallbacks(long[] disabledChanges, long[] loggableChanges) {
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mDisabledChanges = Arrays.copyOf(disabledChanges, disabledChanges.length);
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mLoggableChanges = Arrays.copyOf(loggableChanges, loggableChanges.length);
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Arrays.sort(mDisabledChanges);
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Arrays.sort(mLoggableChanges);
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mChangeReporter = new ChangeReporter(ChangeReporter.SOURCE_APP_PROCESS);
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}
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/**
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* Helper to determine if a list contains a changeId.
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*
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* @param list to search through
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* @param changeId for which to search in the list
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* @return true if the given changeId is found in the provided array.
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*/
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private boolean changeIdInChangeList(long[] list, long changeId) {
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return Arrays.binarySearch(list, changeId) >= 0;
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}
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public void onChangeReported(long changeId) {
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boolean isLoggable = changeIdInChangeList(mLoggableChanges, changeId);
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reportChange(changeId, ChangeReporter.STATE_LOGGED, isLoggable);
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}
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public boolean isChangeEnabled(long changeId) {
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boolean isEnabled = !changeIdInChangeList(mDisabledChanges, changeId);
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boolean isLoggable = changeIdInChangeList(mLoggableChanges, changeId);
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if (isEnabled) {
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// Not present in the disabled changeId array
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reportChange(changeId, ChangeReporter.STATE_ENABLED, isLoggable);
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return true;
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}
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reportChange(changeId, ChangeReporter.STATE_DISABLED, isLoggable);
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return false;
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}
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private void reportChange(long changeId, int state, boolean isLoggable) {
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int uid = Process.myUid();
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mChangeReporter.reportChange(uid, changeId, state, isLoggable);
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}
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}
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