| /* |
| * 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 android.net; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.util.Log; |
| |
| import java.util.Objects; |
| |
| /** |
| * Aware of how to parcel different types of {@link QosFilter}s. Any new type of qos filter must |
| * have a specialized case written here. |
| * <p/> |
| * Specifically leveraged when transferring {@link QosFilter} from |
| * {@link com.android.server.ConnectivityService} to {@link NetworkAgent} when the filter is first |
| * registered. |
| * <p/> |
| * This is not meant to be used in other contexts. |
| * |
| * @hide |
| */ |
| public final class QosFilterParcelable implements Parcelable { |
| |
| private static final String LOG_TAG = QosFilterParcelable.class.getSimpleName(); |
| |
| // Indicates that the filter was not successfully written to the parcel. |
| private static final int NO_FILTER_PRESENT = 0; |
| |
| // The parcel is of type qos socket filter. |
| private static final int QOS_SOCKET_FILTER = 1; |
| |
| private final QosFilter mQosFilter; |
| |
| /** |
| * The underlying qos filter. |
| * <p/> |
| * Null only in the case parceling failed. |
| */ |
| @Nullable |
| public QosFilter getQosFilter() { |
| return mQosFilter; |
| } |
| |
| public QosFilterParcelable(@NonNull final QosFilter qosFilter) { |
| Objects.requireNonNull(qosFilter, "qosFilter must be non-null"); |
| |
| // NOTE: Normally a type check would belong here, but doing so breaks unit tests that rely |
| // on mocking qos filter. |
| mQosFilter = qosFilter; |
| } |
| |
| private QosFilterParcelable(final Parcel in) { |
| final int filterParcelType = in.readInt(); |
| |
| switch (filterParcelType) { |
| case QOS_SOCKET_FILTER: { |
| mQosFilter = new QosSocketFilter(QosSocketInfo.CREATOR.createFromParcel(in)); |
| break; |
| } |
| |
| case NO_FILTER_PRESENT: |
| default: { |
| mQosFilter = null; |
| } |
| } |
| } |
| |
| public static final Creator<QosFilterParcelable> CREATOR = new Creator<QosFilterParcelable>() { |
| @Override |
| public QosFilterParcelable createFromParcel(final Parcel in) { |
| return new QosFilterParcelable(in); |
| } |
| |
| @Override |
| public QosFilterParcelable[] newArray(final int size) { |
| return new QosFilterParcelable[size]; |
| } |
| }; |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(final Parcel dest, final int flags) { |
| if (mQosFilter instanceof QosSocketFilter) { |
| dest.writeInt(QOS_SOCKET_FILTER); |
| final QosSocketFilter qosSocketFilter = (QosSocketFilter) mQosFilter; |
| qosSocketFilter.getQosSocketInfo().writeToParcelWithoutFd(dest, 0); |
| return; |
| } |
| dest.writeInt(NO_FILTER_PRESENT); |
| Log.e(LOG_TAG, "Parceling failed, unknown type of filter present: " + mQosFilter); |
| } |
| } |