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/*
* Copyright (C) 2021 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 com.android.server.appsearch.visibilitystore;
import android.annotation.NonNull;
import android.util.ArrayMap;
import java.util.Map;
import java.util.Set;
/**
* Stores information about what types are hidden from platform surfaces through the
* {@link android.app.appsearch.SetSchemaRequest.Builder#setSchemaTypeDisplayedBySystem} API.
*
* This object is not thread safe.
*/
class NotDisplayedBySystemMap {
/**
* Maps packages to databases to the set of prefixed schemas that are platform-hidden within
* that database.
*/
private final Map<String, Map<String, Set<String>>> mMap = new ArrayMap<>();
/**
* Sets the prefixed schemas that are opted out of platform surfacing for the database.
*
* <p>Any existing mappings for this prefix are overwritten.
*/
public void setNotDisplayedBySystem(
@NonNull String packageName,
@NonNull String databaseName,
@NonNull Set<String> prefixedSchemas) {
Map<String, Set<String>> databaseToSchemas = mMap.get(packageName);
if (databaseToSchemas == null) {
databaseToSchemas = new ArrayMap<>();
mMap.put(packageName, databaseToSchemas);
}
databaseToSchemas.put(databaseName, prefixedSchemas);
}
/**
* Returns whether the given prefixed schema is platform surfaceable (has not opted out) in the
* given database.
*/
public boolean isSchemaDisplayedBySystem(
@NonNull String packageName,
@NonNull String databaseName,
@NonNull String prefixedSchema) {
Map<String, Set<String>> databaseToSchemaType = mMap.get(packageName);
if (databaseToSchemaType == null) {
// No opt-outs for this package
return true;
}
Set<String> schemaTypes = databaseToSchemaType.get(databaseName);
if (schemaTypes == null) {
// No opt-outs for this database
return true;
}
// Some schemas were opted out of being platform-surfaced. As long as this schema
// isn't one of those opt-outs, it's surfaceable.
return !schemaTypes.contains(prefixedSchema);
}
}
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