| /* |
| * Copyright (C) 2020 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.vcn; |
| |
| import static com.android.internal.annotations.VisibleForTesting.Visibility; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.os.PersistableBundle; |
| import android.util.ArraySet; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.Preconditions; |
| import com.android.server.vcn.util.PersistableBundleUtils; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| /** |
| * This class represents a configuration for a Virtual Carrier Network. |
| * |
| * <p>Each {@link VcnGatewayConnectionConfig} instance added represents a connection that will be |
| * brought up on demand based on active {@link NetworkRequest}(s). |
| * |
| * @see VcnManager for more information on the Virtual Carrier Network feature |
| * @hide |
| */ |
| public final class VcnConfig implements Parcelable { |
| @NonNull private static final String TAG = VcnConfig.class.getSimpleName(); |
| |
| private static final String GATEWAY_CONNECTION_CONFIGS_KEY = "mGatewayConnectionConfigs"; |
| @NonNull private final Set<VcnGatewayConnectionConfig> mGatewayConnectionConfigs; |
| |
| private VcnConfig(@NonNull Set<VcnGatewayConnectionConfig> tunnelConfigs) { |
| mGatewayConnectionConfigs = Collections.unmodifiableSet(tunnelConfigs); |
| |
| validate(); |
| } |
| |
| /** |
| * Deserializes a VcnConfig from a PersistableBundle. |
| * |
| * @hide |
| */ |
| @VisibleForTesting(visibility = Visibility.PRIVATE) |
| public VcnConfig(@NonNull PersistableBundle in) { |
| final PersistableBundle gatewayConnectionConfigsBundle = |
| in.getPersistableBundle(GATEWAY_CONNECTION_CONFIGS_KEY); |
| mGatewayConnectionConfigs = |
| new ArraySet<>( |
| PersistableBundleUtils.toList( |
| gatewayConnectionConfigsBundle, VcnGatewayConnectionConfig::new)); |
| |
| validate(); |
| } |
| |
| private void validate() { |
| Preconditions.checkCollectionNotEmpty( |
| mGatewayConnectionConfigs, "gatewayConnectionConfigs"); |
| } |
| |
| /** Retrieves the set of configured tunnels. */ |
| @NonNull |
| public Set<VcnGatewayConnectionConfig> getGatewayConnectionConfigs() { |
| return Collections.unmodifiableSet(mGatewayConnectionConfigs); |
| } |
| |
| /** |
| * Serializes this object to a PersistableBundle. |
| * |
| * @hide |
| */ |
| @NonNull |
| public PersistableBundle toPersistableBundle() { |
| final PersistableBundle result = new PersistableBundle(); |
| |
| final PersistableBundle gatewayConnectionConfigsBundle = |
| PersistableBundleUtils.fromList( |
| new ArrayList<>(mGatewayConnectionConfigs), |
| VcnGatewayConnectionConfig::toPersistableBundle); |
| result.putPersistableBundle(GATEWAY_CONNECTION_CONFIGS_KEY, gatewayConnectionConfigsBundle); |
| |
| return result; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(mGatewayConnectionConfigs); |
| } |
| |
| @Override |
| public boolean equals(@Nullable Object other) { |
| if (!(other instanceof VcnConfig)) { |
| return false; |
| } |
| |
| final VcnConfig rhs = (VcnConfig) other; |
| return mGatewayConnectionConfigs.equals(rhs.mGatewayConnectionConfigs); |
| } |
| |
| // Parcelable methods |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel out, int flags) { |
| out.writeParcelable(toPersistableBundle(), flags); |
| } |
| |
| @NonNull |
| public static final Parcelable.Creator<VcnConfig> CREATOR = |
| new Parcelable.Creator<VcnConfig>() { |
| @NonNull |
| public VcnConfig createFromParcel(Parcel in) { |
| return new VcnConfig((PersistableBundle) in.readParcelable(null)); |
| } |
| |
| @NonNull |
| public VcnConfig[] newArray(int size) { |
| return new VcnConfig[size]; |
| } |
| }; |
| |
| /** This class is used to incrementally build {@link VcnConfig} objects. */ |
| public static class Builder { |
| @NonNull |
| private final Set<VcnGatewayConnectionConfig> mGatewayConnectionConfigs = new ArraySet<>(); |
| |
| /** |
| * Adds a configuration for an individual gateway connection. |
| * |
| * @param gatewayConnectionConfig the configuration for an individual gateway connection |
| * @return this {@link Builder} instance, for chaining |
| */ |
| @NonNull |
| public Builder addGatewayConnectionConfig( |
| @NonNull VcnGatewayConnectionConfig gatewayConnectionConfig) { |
| Objects.requireNonNull(gatewayConnectionConfig, "gatewayConnectionConfig was null"); |
| |
| mGatewayConnectionConfigs.add(gatewayConnectionConfig); |
| return this; |
| } |
| |
| /** |
| * Builds and validates the VcnConfig. |
| * |
| * @return an immutable VcnConfig instance |
| */ |
| @NonNull |
| public VcnConfig build() { |
| return new VcnConfig(mGatewayConnectionConfigs); |
| } |
| } |
| } |