src.android.telephony.ims.ImsService Maven / Gradle / Ivy
/*
* Copyright (C) 2017 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;
import android.annotation.LongDef;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.SuppressLint;
import android.annotation.SystemApi;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteException;
import android.telephony.CarrierConfigManager;
import android.telephony.ims.aidl.IImsConfig;
import android.telephony.ims.aidl.IImsMmTelFeature;
import android.telephony.ims.aidl.IImsRcsFeature;
import android.telephony.ims.aidl.IImsRegistration;
import android.telephony.ims.aidl.IImsServiceController;
import android.telephony.ims.aidl.IImsServiceControllerListener;
import android.telephony.ims.aidl.ISipTransport;
import android.telephony.ims.feature.ImsFeature;
import android.telephony.ims.feature.MmTelFeature;
import android.telephony.ims.feature.RcsFeature;
import android.telephony.ims.stub.ImsConfigImplBase;
import android.telephony.ims.stub.ImsFeatureConfiguration;
import android.telephony.ims.stub.ImsRegistrationImplBase;
import android.telephony.ims.stub.SipTransportImplBase;
import android.util.Log;
import android.util.SparseArray;
import android.util.SparseBooleanArray;
import com.android.ims.internal.IImsFeatureStatusCallback;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.telephony.util.TelephonyUtils;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CancellationException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executor;
import java.util.function.Supplier;
/**
* Main ImsService implementation, which binds via the Telephony ImsResolver. Services that extend
* ImsService must register the service in their AndroidManifest to be detected by the framework.
* First, the application must declare that they use the "android.permission.BIND_IMS_SERVICE"
* permission. Then, the ImsService definition in the manifest must follow the following format:
*
* ...
*
* ...
*
*
*
* ...
*
* The telephony framework will then bind to the ImsService you have defined in your manifest
* if you are either:
* 1) Defined as the default ImsService for the device in the device overlay using
* "config_ims_mmtel_package" or "config_ims_rcs_package".
* 2) Defined as a Carrier Provided ImsService in the Carrier Configuration using
* {@link CarrierConfigManager#KEY_CONFIG_IMS_MMTEL_PACKAGE_OVERRIDE_STRING} or
* {@link CarrierConfigManager#KEY_CONFIG_IMS_RCS_PACKAGE_OVERRIDE_STRING}.
*
* There are two ways to define to the platform which {@link ImsFeature}s this {@link ImsService}
* supports, dynamic or static definitions.
*
* In the static definition, the {@link ImsFeature}s that are supported are defined in the service
* definition of the AndroidManifest.xml file as metadata:
*
*
* Note: This should never be set by {@link #getImsServiceCapabilities()}, as whether it is
* there or not depends on whether or not {@link ImsFeature#FEATURE_EMERGENCY_MMTEL} is defined
* for this ImsService. If it is set, it will be removed during sanitization before the final
* capabilities bitfield is sent back to the framework.
* @hide This is encoded into the {@link ImsFeature#FEATURE_EMERGENCY_MMTEL}, but we will be
* adding other capabilities in a central location, so track this capability here as well.
*/
public static final long CAPABILITY_EMERGENCY_OVER_MMTEL = 1 << 0;
/**
* This ImsService supports the capability to create SIP delegates for other IMS applications
* to use to proxy SIP messaging traffic through it.
*
* In order for the framework to report SipDelegate creation as being available for this
* ImsService implementation, this ImsService must report this capability flag in
* {@link #getImsServiceCapabilities()}, {@link #getSipTransport(int)} must not return null, and
* this ImsService MUST report the ability to create both {@link ImsFeature#FEATURE_MMTEL} and
* {@link ImsFeature#FEATURE_RCS} features.
*/
public static final long CAPABILITY_SIP_DELEGATE_CREATION = 1 << 1;
/**
* Used for internal correctness checks of capabilities set by the ImsService implementation and
* tracks the index of the largest defined flag in the capabilities long.
* @hide
*/
public static final long CAPABILITY_MAX_INDEX =
Long.numberOfTrailingZeros(CAPABILITY_SIP_DELEGATE_CREATION);
/**
* @hide
*/
@LongDef(flag = true,
prefix = "CAPABILITY_",
value = {
// CAPABILITY_EMERGENCY_OVER_MMTEL is not included here because it is managed by
// whether or not ImsFeature.FEATURE_EMERGENCY_MMTEL feature is set and should
// not be set by users of ImsService.
CAPABILITY_SIP_DELEGATE_CREATION
})
@Retention(RetentionPolicy.SOURCE)
public @interface ImsServiceCapability {}
/**
* Used for logging purposes, see {@link #getCapabilitiesString(long)}
* @hide
*/
private static final Map CAPABILITIES_LOG_MAP = new HashMap() {{
put(CAPABILITY_EMERGENCY_OVER_MMTEL, "EMERGENCY_OVER_MMTEL");
put(CAPABILITY_SIP_DELEGATE_CREATION, "SIP_DELEGATE_CREATION");
}};
/**
* The intent that must be defined as an intent-filter in the AndroidManifest of the ImsService.
* @hide
*/
public static final String SERVICE_INTERFACE = "android.telephony.ims.ImsService";
// A map of slot Id -> map of features (indexed by ImsFeature feature id) corresponding to that
// slot.
// We keep track of this to facilitate cleanup of the IImsFeatureStatusCallback and
// call ImsFeature#onFeatureRemoved.
private final SparseArray> mFeaturesBySlot = new SparseArray<>();
// A map of slot id -> boolean array, where each entry in the boolean array corresponds to an
// ImsFeature that was created for a slot id and not a sub id for backwards compatibility
// purposes.
private final SparseArray mCreateImsFeatureWithSlotIdFlagMap =
new SparseArray<>();
private IImsServiceControllerListener mListener;
private Executor mExecutor;
/**
* Create a new ImsService.
*
* Method stubs called from the framework will be called asynchronously. Vendor specifies the
* {@link Executor} that the methods stubs will be called. If mExecutor is set to null by
* vendor use Runnable::run.
*/
public ImsService() {
mExecutor = ImsService.this.getExecutor();
if (mExecutor == null) {
mExecutor = Runnable::run;
}
}
/**
* Listener that notifies the framework of ImsService changes.
* @hide
*/
public static class Listener extends IImsServiceControllerListener.Stub {
/**
* The IMS features that this ImsService supports has changed.
* @param c a new {@link ImsFeatureConfiguration} containing {@link ImsFeature.FeatureType}s
* that this ImsService supports. This may trigger the addition/removal of feature
* in this service.
*/
public void onUpdateSupportedImsFeatures(ImsFeatureConfiguration c) {
}
}
/**
* @hide
*/
protected final IBinder mImsServiceController = new IImsServiceController.Stub() {
@Override
public void setListener(IImsServiceControllerListener l) {
mListener = l;
}
@Override
public IImsMmTelFeature createMmTelFeature(int slotId, int subId) {
MmTelFeature f = (MmTelFeature) getImsFeature(slotId, ImsFeature.FEATURE_MMTEL);
if (f == null) {
return executeMethodAsyncForResult(() -> createMmTelFeatureInternal(slotId, subId),
"createMmTelFeature");
} else {
return f.getBinder();
}
}
@Override
public IImsMmTelFeature createEmergencyOnlyMmTelFeature(int slotId) {
MmTelFeature f = (MmTelFeature) getImsFeature(slotId, ImsFeature.FEATURE_MMTEL);
if (f == null) {
return executeMethodAsyncForResult(() -> createEmergencyOnlyMmTelFeatureInternal(
slotId), "createEmergencyOnlyMmTelFeature");
} else {
return f.getBinder();
}
}
@Override
public IImsRcsFeature createRcsFeature(int slotId, int subId) {
RcsFeature f = (RcsFeature) getImsFeature(slotId, ImsFeature.FEATURE_RCS);
if (f == null) {
return executeMethodAsyncForResult(() ->
createRcsFeatureInternal(slotId, subId), "createRcsFeature");
} else {
return f.getBinder();
}
}
@Override
public void addFeatureStatusCallback(int slotId, int featureType,
IImsFeatureStatusCallback c) {
executeMethodAsync(() -> ImsService.this.addImsFeatureStatusCallback(
slotId, featureType, c), "addFeatureStatusCallback");
}
@Override
public void removeFeatureStatusCallback(int slotId, int featureType,
IImsFeatureStatusCallback c) {
executeMethodAsync(() -> ImsService.this.removeImsFeatureStatusCallback(
slotId, featureType, c), "removeFeatureStatusCallback");
}
@Override
public void removeImsFeature(int slotId, int featureType, boolean changeSubId) {
if (changeSubId && isImsFeatureCreatedForSlot(slotId, featureType)) {
Log.w(LOG_TAG, "Do not remove Ims feature for compatibility");
return;
}
executeMethodAsync(() -> ImsService.this.removeImsFeature(slotId, featureType),
"removeImsFeature");
setImsFeatureCreatedForSlot(slotId, featureType, false);
}
@Override
public ImsFeatureConfiguration querySupportedImsFeatures() {
return executeMethodAsyncForResult(() -> ImsService.this.querySupportedImsFeatures(),
"ImsFeatureConfiguration");
}
@Override
public long getImsServiceCapabilities() {
return executeMethodAsyncForResult(() -> {
long caps = ImsService.this.getImsServiceCapabilities();
long sanitizedCaps = sanitizeCapabilities(caps);
if (caps != sanitizedCaps) {
Log.w(LOG_TAG, "removing invalid bits from field: 0x"
+ Long.toHexString(caps ^ sanitizedCaps));
}
return sanitizedCaps;
}, "getImsServiceCapabilities");
}
@Override
public void notifyImsServiceReadyForFeatureCreation() {
executeMethodAsync(() -> ImsService.this.readyForFeatureCreation(),
"notifyImsServiceReadyForFeatureCreation");
}
@Override
public IImsConfig getConfig(int slotId, int subId) {
return executeMethodAsyncForResult(() -> {
ImsConfigImplBase c =
ImsService.this.getConfigForSubscription(slotId, subId);
if (c != null) {
c.setDefaultExecutor(mExecutor);
return c.getIImsConfig();
} else {
return null;
}
}, "getConfig");
}
@Override
public IImsRegistration getRegistration(int slotId, int subId) {
return executeMethodAsyncForResult(() -> {
ImsRegistrationImplBase r =
ImsService.this.getRegistrationForSubscription(slotId, subId);
if (r != null) {
r.setDefaultExecutor(mExecutor);
return r.getBinder();
} else {
return null;
}
}, "getRegistration");
}
@Override
public ISipTransport getSipTransport(int slotId) {
return executeMethodAsyncForResult(() -> {
SipTransportImplBase s = ImsService.this.getSipTransport(slotId);
if (s != null) {
s.setDefaultExecutor(mExecutor);
return s.getBinder();
} else {
return null;
}
}, "getSipTransport");
}
@Override
public void enableIms(int slotId, int subId) {
executeMethodAsync(() ->
ImsService.this.enableImsForSubscription(slotId, subId), "enableIms");
}
@Override
public void disableIms(int slotId, int subId) {
executeMethodAsync(() ->
ImsService.this.disableImsForSubscription(slotId, subId), "disableIms");
}
// Call the methods with a clean calling identity on the executor and wait indefinitely for
// the future to return.
private void executeMethodAsync(Runnable r, String errorLogName) {
try {
CompletableFuture.runAsync(
() -> TelephonyUtils.runWithCleanCallingIdentity(r), mExecutor).join();
} catch (CancellationException | CompletionException e) {
Log.w(LOG_TAG, "ImsService Binder - " + errorLogName + " exception: "
+ e.getMessage());
}
}
private T executeMethodAsyncForResult(Supplier r, String errorLogName) {
CompletableFuture future = CompletableFuture.supplyAsync(
() -> TelephonyUtils.runWithCleanCallingIdentity(r), mExecutor);
try {
return future.get();
} catch (ExecutionException | InterruptedException e) {
Log.w(LOG_TAG, "ImsService Binder - " + errorLogName + " exception: "
+ e.getMessage());
return null;
}
}
};
/**
* @hide
*/
@Override
public IBinder onBind(Intent intent) {
if(SERVICE_INTERFACE.equals(intent.getAction())) {
Log.i(LOG_TAG, "ImsService Bound.");
return mImsServiceController;
}
return null;
}
private IImsMmTelFeature createMmTelFeatureInternal(int slotId, int subscriptionId) {
MmTelFeature f = createMmTelFeatureForSubscription(slotId, subscriptionId);
if (f != null) {
setupFeature(f, slotId, ImsFeature.FEATURE_MMTEL);
f.setDefaultExecutor(mExecutor);
return f.getBinder();
} else {
Log.e(LOG_TAG, "createMmTelFeatureInternal: null feature returned.");
return null;
}
}
private IImsMmTelFeature createEmergencyOnlyMmTelFeatureInternal(int slotId) {
MmTelFeature f = createEmergencyOnlyMmTelFeature(slotId);
if (f != null) {
setupFeature(f, slotId, ImsFeature.FEATURE_MMTEL);
f.setDefaultExecutor(mExecutor);
return f.getBinder();
} else {
Log.e(LOG_TAG, "createEmergencyOnlyMmTelFeatureInternal: null feature returned.");
return null;
}
}
private IImsRcsFeature createRcsFeatureInternal(int slotId, int subI) {
RcsFeature f = createRcsFeatureForSubscription(slotId, subI);
if (f != null) {
f.setDefaultExecutor(mExecutor);
setupFeature(f, slotId, ImsFeature.FEATURE_RCS);
return f.getBinder();
} else {
Log.e(LOG_TAG, "createRcsFeatureInternal: null feature returned.");
return null;
}
}
private void setupFeature(ImsFeature f, int slotId, int featureType) {
f.initialize(this, slotId);
addImsFeature(slotId, featureType, f);
}
private void addImsFeatureStatusCallback(int slotId, int featureType,
IImsFeatureStatusCallback c) {
synchronized (mFeaturesBySlot) {
// get ImsFeature associated with the slot/feature
SparseArray features = mFeaturesBySlot.get(slotId);
if (features == null) {
Log.w(LOG_TAG, "Can not add ImsFeatureStatusCallback - no features on slot "
+ slotId);
return;
}
ImsFeature f = features.get(featureType);
if (f != null) {
f.addImsFeatureStatusCallback(c);
}
}
}
private void removeImsFeatureStatusCallback(int slotId, int featureType,
IImsFeatureStatusCallback c) {
synchronized (mFeaturesBySlot) {
// get ImsFeature associated with the slot/feature
SparseArray features = mFeaturesBySlot.get(slotId);
if (features == null) {
Log.w(LOG_TAG, "Can not remove ImsFeatureStatusCallback - no features on slot "
+ slotId);
return;
}
ImsFeature f = features.get(featureType);
if (f != null) {
f.removeImsFeatureStatusCallback(c);
}
}
}
private void addImsFeature(int slotId, int featureType, ImsFeature f) {
synchronized (mFeaturesBySlot) {
// Get SparseArray for Features, by querying slot Id
SparseArray features = mFeaturesBySlot.get(slotId);
if (features == null) {
// Populate new SparseArray of features if it doesn't exist for this slot yet.
features = new SparseArray<>();
mFeaturesBySlot.put(slotId, features);
}
features.put(featureType, f);
}
}
private void removeImsFeature(int slotId, int featureType) {
synchronized (mFeaturesBySlot) {
// get ImsFeature associated with the slot/feature
SparseArray features = mFeaturesBySlot.get(slotId);
if (features == null) {
Log.w(LOG_TAG, "Can not remove ImsFeature. No ImsFeatures exist on slot "
+ slotId);
return;
}
ImsFeature f = features.get(featureType);
if (f == null) {
Log.w(LOG_TAG, "Can not remove ImsFeature. No feature with type "
+ featureType + " exists on slot " + slotId);
return;
}
f.onFeatureRemoved();
features.remove(featureType);
}
}
/**
* @hide
*/
@VisibleForTesting
public ImsFeature getImsFeature(int slotId, int featureType) {
synchronized (mFeaturesBySlot) {
// Get SparseArray for Features, by querying slot Id
SparseArray features = mFeaturesBySlot.get(slotId);
if (features == null) {
return null;
}
return features.get(featureType);
}
}
private void setImsFeatureCreatedForSlot(int slotId,
@ImsFeature.FeatureType int featureType, boolean createdForSlot) {
synchronized (mCreateImsFeatureWithSlotIdFlagMap) {
getImsFeatureCreatedForSlot(slotId).put(featureType, createdForSlot);
}
}
/**
* @hide
*/
@VisibleForTesting
public boolean isImsFeatureCreatedForSlot(int slotId,
@ImsFeature.FeatureType int featureType) {
synchronized (mCreateImsFeatureWithSlotIdFlagMap) {
return getImsFeatureCreatedForSlot(slotId).get(featureType);
}
}
private SparseBooleanArray getImsFeatureCreatedForSlot(int slotId) {
SparseBooleanArray createFlag = mCreateImsFeatureWithSlotIdFlagMap.get(slotId);
if (createFlag == null) {
createFlag = new SparseBooleanArray();
mCreateImsFeatureWithSlotIdFlagMap.put(slotId, createFlag);
}
return createFlag;
}
/**
* When called, provide the {@link ImsFeatureConfiguration} that this {@link ImsService}
* currently supports. This will trigger the framework to set up the {@link ImsFeature}s that
* correspond to the {@link ImsFeature}s configured here.
*
* Use {@link #onUpdateSupportedImsFeatures(ImsFeatureConfiguration)} to change the supported
* {@link ImsFeature}s.
*
* @return an {@link ImsFeatureConfiguration} containing Features this ImsService supports.
*/
public ImsFeatureConfiguration querySupportedImsFeatures() {
// Return empty for base implementation
return new ImsFeatureConfiguration();
}
/**
* Updates the framework with a new {@link ImsFeatureConfiguration} containing the updated
* features, that this {@link ImsService} supports. This may trigger the framework to add/remove
* new ImsFeatures, depending on the configuration.
*/
public final void onUpdateSupportedImsFeatures(ImsFeatureConfiguration c)
throws RemoteException {
if (mListener == null) {
throw new IllegalStateException("Framework is not ready");
}
mListener.onUpdateSupportedImsFeatures(c);
}
/**
* The optional capabilities that this ImsService supports.
*
* This should be a static configuration and should not change at runtime.
* @return The optional static capabilities of this ImsService implementation.
*/
// ImsService follows a different convention, since it is a stub class. The on* methods are
// final and call back into the framework with a state update.
@SuppressLint("OnNameExpected")
public @ImsServiceCapability long getImsServiceCapabilities() {
// Stub implementation to be implemented by ImsService.
return 0L;
}
/**
* The ImsService has been bound and is ready for ImsFeature creation based on the Features that
* the ImsService has registered for with the framework, either in the manifest or via
* {@link #querySupportedImsFeatures()}.
*
* The ImsService should use this signal instead of onCreate/onBind or similar to perform
* feature initialization because the framework may bind to this service multiple times to
* query the ImsService's {@link ImsFeatureConfiguration} via
* {@link #querySupportedImsFeatures()}before creating features.
*/
public void readyForFeatureCreation() {
}
/**
* The framework has enabled IMS for the subscription specified, the ImsService should register
* for IMS and perform all appropriate initialization to bring up all ImsFeatures.
*
* @param slotId The slot ID that IMS will be enabled for.
* @param subscriptionId The subscription ID that IMS will be enabled for.
*/
public void enableImsForSubscription(int slotId, int subscriptionId) {
enableIms(slotId);
}
/**
* The framework has disabled IMS for the subscription specified. The ImsService must deregister
* for IMS and set capability status to false for all ImsFeatures.
* @param slotId The slot ID that IMS will be disabled for.
* @param subscriptionId The subscription ID that IMS will be disabled for.
*/
public void disableImsForSubscription(int slotId, int subscriptionId) {
disableIms(slotId);
}
/**
* The framework has enabled IMS for the slot specified, the ImsService should register for IMS
* and perform all appropriate initialization to bring up all ImsFeatures.
* @deprecated Use {@link #enableImsForSubscription} instead.
*/
@Deprecated
public void enableIms(int slotId) {
}
/**
* The framework has disabled IMS for the slot specified. The ImsService must deregister for IMS
* and set capability status to false for all ImsFeatures.
* @deprecated Use {@link #disableImsForSubscription} instead.
*/
@Deprecated
public void disableIms(int slotId) {
}
/**
* When called, the framework is requesting that a new {@link MmTelFeature} is created for the
* specified subscription.
*
* @param subscriptionId The subscription ID that the MMTEL Feature is being created for.
* @return The newly created {@link MmTelFeature} associated with the subscription or null if
* the feature is not supported.
*/
public @Nullable MmTelFeature createMmTelFeatureForSubscription(int slotId,
int subscriptionId) {
setImsFeatureCreatedForSlot(slotId, ImsFeature.FEATURE_MMTEL, true);
return createMmTelFeature(slotId);
}
/**
* When called, the framework is requesting that a new {@link RcsFeature} is created for the
* specified subscription.
*
* @param subscriptionId The subscription ID that the RCS Feature is being created for.
* @return The newly created {@link RcsFeature} associated with the subscription or null if the
* feature is not supported.
*/
public @Nullable RcsFeature createRcsFeatureForSubscription(int slotId, int subscriptionId) {
setImsFeatureCreatedForSlot(slotId, ImsFeature.FEATURE_RCS, true);
return createRcsFeature(slotId);
}
/**
* When called, the framework is requesting that a new emergency-only {@link MmTelFeature} is
* created for the specified slot. For emergency calls, there is no known Subscription Id.
*
* @param slotId The slot ID that the MMTEL Feature is being created for.
* @return An MmTelFeature instance to be used for the slot ID when there is not
* subscription inserted. Only requested when there is no subscription active on
* the specified slot.
*/
public @Nullable MmTelFeature createEmergencyOnlyMmTelFeature(int slotId) {
setImsFeatureCreatedForSlot(slotId, ImsFeature.FEATURE_MMTEL, true);
return createMmTelFeature(slotId);
}
/**
* When called, the framework is requesting that a new {@link MmTelFeature} is created for the
* specified slot.
* @deprecated Use {@link #createMmTelFeatureForSubscription} instead
*
* @param slotId The slot ID that the MMTEL Feature is being created for.
* @return The newly created {@link MmTelFeature} associated with the slot or null if the
* feature is not supported.
*/
@Deprecated
public MmTelFeature createMmTelFeature(int slotId) {
return null;
}
/**
* When called, the framework is requesting that a new {@link RcsFeature} is created for the
* specified slot.
* @deprecated Use {@link #createRcsFeatureForSubscription} instead
*
* @param slotId The slot ID that the RCS Feature is being created for.
* @return The newly created {@link RcsFeature} associated with the slot or null if the feature
* is not supported.
*/
@Deprecated
public RcsFeature createRcsFeature(int slotId) {
return null;
}
/**
* Return the {@link ImsConfigImplBase} implementation associated with the provided
* subscription. This will be used by the platform to get/set specific IMS related
* configurations.
*
* @param subscriptionId The subscription ID that the IMS configuration is associated with.
* @return ImsConfig implementation that is associated with the specified subscription.
*/
public @NonNull ImsConfigImplBase getConfigForSubscription(int slotId, int subscriptionId) {
return getConfig(slotId);
}
/**
* Return the {@link ImsRegistrationImplBase} implementation associated with the provided
* subscription.
*
* @param subscriptionId The subscription ID that is associated with the IMS Registration.
* @return the ImsRegistration implementation associated with the subscription.
*/
public @NonNull ImsRegistrationImplBase getRegistrationForSubscription(int slotId,
int subscriptionId) {
return getRegistration(slotId);
}
/**
* Return the {@link ImsConfigImplBase} implementation associated with the provided slot. This
* will be used by the platform to get/set specific IMS related configurations.
* @deprecated use {@link #getConfigForSubscription} instead.
*
* @param slotId The slot that the IMS configuration is associated with.
* @return ImsConfig implementation that is associated with the specified slot.
*/
@Deprecated
public ImsConfigImplBase getConfig(int slotId) {
return new ImsConfigImplBase();
}
/**
* Return the {@link ImsRegistrationImplBase} implementation associated with the provided slot.
* @deprecated use {@link #getRegistrationForSubscription} instead.
*
* @param slotId The slot that is associated with the IMS Registration.
* @return the ImsRegistration implementation associated with the slot.
*/
@Deprecated
public ImsRegistrationImplBase getRegistration(int slotId) {
return new ImsRegistrationImplBase();
}
/**
* Return the {@link SipTransportImplBase} implementation associated with the provided slot.
*
* This is an optional interface used for devices that must support IMS single registration and
* proxy SIP traffic to remote IMS applications. If this is not supported for this IMS service,
* this method should return {@code null}. If this feature is supported, then this method must
* never be {@code null} and the optional ImsService capability flag
* {@link #CAPABILITY_SIP_DELEGATE_CREATION} must be set in
* {@link #getImsServiceCapabilities()}. Otherwise the framework will assume this feature is not
* supported for this ImsService.
* @param slotId The slot that is associated with the SipTransport implementation.
* @return the SipTransport implementation for the specified slot.
*/
// ImsService follows a different convention, since it is a stub class. The on* methods are
// final and call back into the framework with a state update.
@SuppressLint("OnNameExpected")
public @Nullable SipTransportImplBase getSipTransport(int slotId) {
// Stub implementation for ImsServices that do not support SipTransport.
return null;
}
private static long sanitizeCapabilities(@ImsServiceCapability long caps) {
long filter = 0xFFFFFFFFFFFFFFFFL;
// pad the "allowed" set with zeros
filter <<= CAPABILITY_MAX_INDEX + 1;
// remove values above the allowed set.
caps &= ~filter;
// CAPABILITY_EMERGENCY_OVER_MMTEL should also not be set here, will be set by telephony
// internally.
caps &= ~CAPABILITY_EMERGENCY_OVER_MMTEL;
return caps;
}
/**
* @return A string representation of the ImsService capabilities for logging.
* @hide
*/
public static String getCapabilitiesString(@ImsServiceCapability long caps) {
StringBuffer result = new StringBuffer();
result.append("capabilities={ ");
// filter incrementally fills 0s from left to right. This is used to keep filtering out
// more bits in the long until the remaining leftmost bits are all zero.
long filter = 0xFFFFFFFFFFFFFFFFL;
// position of iterator to potentially print capability.
long i = 0;
while ((caps & filter) != 0 && i <= 63) {
long bitToCheck = (1L << i);
if ((caps & bitToCheck) != 0) {
result.append(CAPABILITIES_LOG_MAP.getOrDefault(bitToCheck, bitToCheck + "?"));
result.append(" ");
}
// shift left by one and fill in another 1 on the leftmost bit.
filter <<= 1;
i++;
}
result.append("}");
return result.toString();
}
/**
* The ImsService will now be able to define an Executor that the ImsService can be used to
* execute the methods. By default all ImsService level method calls will use this Executor.
* The ImsService has set the default executor as Runnable::run,
* Should be override or default executor will be used.
* @return an Executor used to execute methods called remotely by the framework.
*/
public @NonNull Executor getExecutor() {
return Runnable::run;
}
}