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/*
* Copyright (C) 2022 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.app.ambientcontext;
import android.annotation.NonNull;
import android.annotation.SystemApi;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.PersistableBundle;
import android.util.ArraySet;
import com.android.internal.util.AnnotationValidations;
import com.android.internal.util.Preconditions;
import java.util.HashSet;
import java.util.Set;
/**
* Represents the request for ambient event detection.
*
* @hide
*/
@SystemApi
public final class AmbientContextEventRequest implements Parcelable {
@NonNull private final Set<Integer> mEventTypes;
@NonNull private final PersistableBundle mOptions;
private AmbientContextEventRequest(
@NonNull Set<Integer> eventTypes,
@NonNull PersistableBundle options) {
this.mEventTypes = eventTypes;
AnnotationValidations.validate(NonNull.class, null, mEventTypes);
Preconditions.checkArgument(!eventTypes.isEmpty(), "eventTypes cannot be empty");
for (int eventType : eventTypes) {
AnnotationValidations.validate(AmbientContextEvent.EventCode.class, null, eventType);
}
this.mOptions = options;
AnnotationValidations.validate(NonNull.class, null, mOptions);
}
/**
* The event types to detect.
*/
public @NonNull Set<Integer> getEventTypes() {
return mEventTypes;
}
/**
* Optional detection options.
*/
public @NonNull PersistableBundle getOptions() {
return mOptions;
}
@Override
public String toString() {
return "AmbientContextEventRequest { " + "eventTypes = " + mEventTypes + ", "
+ "options = " + mOptions + " }";
}
@Override
public void writeToParcel(@NonNull Parcel dest, int flags) {
dest.writeArraySet(new ArraySet<>(mEventTypes));
dest.writeTypedObject(mOptions, flags);
}
@Override
public int describeContents() {
return 0;
}
/** @hide */
@SuppressWarnings({"unchecked", "RedundantCast"})
private AmbientContextEventRequest(@NonNull Parcel in) {
Set<Integer> eventTypes = (Set<Integer>) in.readArraySet(Integer.class.getClassLoader());
PersistableBundle options = (PersistableBundle) in.readTypedObject(
PersistableBundle.CREATOR);
this.mEventTypes = eventTypes;
AnnotationValidations.validate(
NonNull.class, null, mEventTypes);
Preconditions.checkArgument(!eventTypes.isEmpty(), "eventTypes cannot be empty");
for (int eventType : eventTypes) {
AnnotationValidations.validate(AmbientContextEvent.EventCode.class, null, eventType);
}
this.mOptions = options;
AnnotationValidations.validate(
NonNull.class, null, mOptions);
}
public static final @NonNull Parcelable.Creator<AmbientContextEventRequest> CREATOR =
new Parcelable.Creator<AmbientContextEventRequest>() {
@Override
public AmbientContextEventRequest[] newArray(int size) {
return new AmbientContextEventRequest[size];
}
@Override
public AmbientContextEventRequest createFromParcel(@NonNull Parcel in) {
return new AmbientContextEventRequest(in);
}
};
/**
* A builder for {@link AmbientContextEventRequest}
*/
@SuppressWarnings("WeakerAccess")
public static final class Builder {
private @NonNull Set<Integer> mEventTypes;
private @NonNull PersistableBundle mOptions;
private long mBuilderFieldsSet = 0L;
public Builder() {
}
/**
* Add an event type to detect.
*/
public @NonNull Builder addEventType(@AmbientContextEvent.EventCode int value) {
checkNotUsed();
if (mEventTypes == null) {
mBuilderFieldsSet |= 0x1;
mEventTypes = new HashSet<>();
}
mEventTypes.add(value);
return this;
}
/**
* Optional detection options.
*/
public @NonNull Builder setOptions(@NonNull PersistableBundle value) {
checkNotUsed();
mBuilderFieldsSet |= 0x2;
mOptions = value;
return this;
}
/** Builds the instance. This builder should not be touched after calling this! */
public @NonNull AmbientContextEventRequest build() {
checkNotUsed();
mBuilderFieldsSet |= 0x4; // Mark builder used
if ((mBuilderFieldsSet & 0x1) == 0) {
mEventTypes = new HashSet<>();
}
if ((mBuilderFieldsSet & 0x2) == 0) {
mOptions = new PersistableBundle();
}
AmbientContextEventRequest o = new AmbientContextEventRequest(
mEventTypes,
mOptions);
return o;
}
private void checkNotUsed() {
if ((mBuilderFieldsSet & 0x4) != 0) {
throw new IllegalStateException(
"This Builder should not be reused. Use a new Builder instance instead");
}
}
}
}
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