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/*
* Copyright (C) 2018 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.telephony.ims.feature;
import android.os.Parcel;
import android.os.Parcelable;
import android.telephony.ims.stub.ImsRegistrationImplBase;
import android.util.ArraySet;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
/**
* Request to send to IMS provider, which will try to enable/disable capabilities that are added to
* the request.
* {@hide}
*/
public class CapabilityChangeRequest implements Parcelable {
public static class CapabilityPair {
private final int mCapability;
private final int radioTech;
public CapabilityPair(int capability, int radioTech) {
this.mCapability = capability;
this.radioTech = radioTech;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof CapabilityPair)) return false;
CapabilityPair that = (CapabilityPair) o;
if (getCapability() != that.getCapability()) return false;
return getRadioTech() == that.getRadioTech();
}
@Override
public int hashCode() {
int result = getCapability();
result = 31 * result + getRadioTech();
return result;
}
public @MmTelFeature.MmTelCapabilities.MmTelCapability int getCapability() {
return mCapability;
}
public @ImsRegistrationImplBase.ImsRegistrationTech int getRadioTech() {
return radioTech;
}
}
// Pair contains <radio tech, mCapability>
private final Set<CapabilityPair> mCapabilitiesToEnable;
// Pair contains <radio tech, mCapability>
private final Set<CapabilityPair> mCapabilitiesToDisable;
public CapabilityChangeRequest() {
mCapabilitiesToEnable = new ArraySet<>();
mCapabilitiesToDisable = new ArraySet<>();
}
/**
* Add one or many capabilities to the request to be enabled.
*
* @param capabilities A bitfield of capabilities to enable, valid values are defined in
* {@link MmTelFeature.MmTelCapabilities.MmTelCapability}.
* @param radioTech the radio tech that these capabilities should be enabled for, valid
* values are in {@link ImsRegistrationImplBase.ImsRegistrationTech}.
*/
public void addCapabilitiesToEnableForTech(
@MmTelFeature.MmTelCapabilities.MmTelCapability int capabilities,
@ImsRegistrationImplBase.ImsRegistrationTech int radioTech) {
addAllCapabilities(mCapabilitiesToEnable, capabilities, radioTech);
}
/**
* Add one or many capabilities to the request to be disabled.
* @param capabilities A bitfield of capabilities to diable, valid values are defined in
* {@link MmTelFeature.MmTelCapabilities.MmTelCapability}.
* @param radioTech the radio tech that these capabilities should be disabled for, valid
* values are in {@link ImsRegistrationImplBase.ImsRegistrationTech}.
*/
public void addCapabilitiesToDisableForTech(
@MmTelFeature.MmTelCapabilities.MmTelCapability int capabilities,
@ImsRegistrationImplBase.ImsRegistrationTech int radioTech) {
addAllCapabilities(mCapabilitiesToDisable, capabilities, radioTech);
}
/**
* @return a {@link List} of {@link CapabilityPair}s that are requesting to be enabled.
*/
public List<CapabilityPair> getCapabilitiesToEnable() {
return new ArrayList<>(mCapabilitiesToEnable);
}
/**
* @return a {@link List} of {@link CapabilityPair}s that are requesting to be disabled.
*/
public List<CapabilityPair> getCapabilitiesToDisable() {
return new ArrayList<>(mCapabilitiesToDisable);
}
// Iterate through capabilities bitfield and add each one as a pair associated with the radio
// technology
private void addAllCapabilities(Set<CapabilityPair> set, int capabilities, int tech) {
long highestCapability = Long.highestOneBit(capabilities);
for (int i = 1; i <= highestCapability; i *= 2) {
if ((i & capabilities) > 0) {
set.add(new CapabilityPair(/*capability*/ i, /*radioTech*/ tech));
}
}
}
protected CapabilityChangeRequest(Parcel in) {
int enableSize = in.readInt();
mCapabilitiesToEnable = new ArraySet<>(enableSize);
for (int i = 0; i < enableSize; i++) {
mCapabilitiesToEnable.add(new CapabilityPair(/*capability*/ in.readInt(),
/*radioTech*/ in.readInt()));
}
int disableSize = in.readInt();
mCapabilitiesToDisable = new ArraySet<>(disableSize);
for (int i = 0; i < disableSize; i++) {
mCapabilitiesToDisable.add(new CapabilityPair(/*capability*/ in.readInt(),
/*radioTech*/ in.readInt()));
}
}
public static final Creator<CapabilityChangeRequest> CREATOR =
new Creator<CapabilityChangeRequest>() {
@Override
public CapabilityChangeRequest createFromParcel(Parcel in) {
return new CapabilityChangeRequest(in);
}
@Override
public CapabilityChangeRequest[] newArray(int size) {
return new CapabilityChangeRequest[size];
}
};
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(mCapabilitiesToEnable.size());
for (CapabilityPair pair : mCapabilitiesToEnable) {
dest.writeInt(pair.getCapability());
dest.writeInt(pair.getRadioTech());
}
dest.writeInt(mCapabilitiesToDisable.size());
for (CapabilityPair pair : mCapabilitiesToDisable) {
dest.writeInt(pair.getCapability());
dest.writeInt(pair.getRadioTech());
}
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof CapabilityChangeRequest)) return false;
CapabilityChangeRequest
that = (CapabilityChangeRequest) o;
if (!mCapabilitiesToEnable.equals(that.mCapabilitiesToEnable)) return false;
return mCapabilitiesToDisable.equals(that.mCapabilitiesToDisable);
}
@Override
public int hashCode() {
int result = mCapabilitiesToEnable.hashCode();
result = 31 * result + mCapabilitiesToDisable.hashCode();
return result;
}
}
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