454 lines
15 KiB
Java
454 lines
15 KiB
Java
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.telephony;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.annotation.SystemApi;
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import android.annotation.TestApi;
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import android.compat.Compatibility;
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import android.compat.annotation.ChangeId;
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import android.compat.annotation.EnabledAfter;
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import android.compat.annotation.UnsupportedAppUsage;
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import android.net.LinkProperties;
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import android.os.Build;
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import android.os.Parcel;
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import android.os.Parcelable;
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import android.telephony.AccessNetworkConstants.TransportType;
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import android.telephony.Annotation.ApnType;
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import android.telephony.Annotation.DataFailureCause;
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import android.telephony.Annotation.DataState;
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import android.telephony.Annotation.NetworkType;
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import android.telephony.data.ApnSetting;
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import android.telephony.data.DataCallResponse;
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import com.android.internal.telephony.util.TelephonyUtils;
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import java.util.Objects;
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/**
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* Contains precise data connection state.
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*
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* The following data connection information is included in returned PreciseDataConnectionState:
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*
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* <ul>
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* <li>Data connection state.
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* <li>Network type of the connection.
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* <li>APN types.
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* <li>APN.
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* <li>The properties of the network link.
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* <li>Data connection fail cause.
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* </ul>
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*
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*/
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public final class PreciseDataConnectionState implements Parcelable {
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private final @TransportType int mTransportType;
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private final int mId;
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private final @DataState int mState;
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private final @NetworkType int mNetworkType;
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private final @DataFailureCause int mFailCause;
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private final LinkProperties mLinkProperties;
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private final ApnSetting mApnSetting;
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/**
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* Constructor
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*
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* @deprecated this constructor has been superseded and should not be used.
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* @hide
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*/
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@TestApi
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@Deprecated
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@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553) // (maxTargetSdk = Build.VERSION_CODES.Q)
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// FIXME: figure out how to remove the UnsupportedAppUsage and delete this constructor
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public PreciseDataConnectionState(@DataState int state,
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@NetworkType int networkType,
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@ApnType int apnTypes, @NonNull String apn,
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@Nullable LinkProperties linkProperties,
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@DataFailureCause int failCause) {
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this(AccessNetworkConstants.TRANSPORT_TYPE_INVALID, -1, state, networkType,
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linkProperties, failCause, new ApnSetting.Builder()
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.setApnTypeBitmask(apnTypes)
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.setApnName(apn)
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.setEntryName(apn)
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.build());
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}
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/**
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* Constructor of PreciseDataConnectionState
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*
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* @param transportType The transport of the data connection
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* @param id The id of the data connection
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* @param state The state of the data connection
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* @param networkType The access network that is/would carry this data connection
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* @param linkProperties If the data connection is connected, the properties of the connection
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* @param failCause In case a procedure related to this data connection fails, a non-zero error
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* code indicating the cause of the failure.
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* @param apnSetting If there is a valid APN for this Data Connection, then the APN Settings;
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* if there is no valid APN setting for the specific type, then this will be null
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*/
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private PreciseDataConnectionState(@TransportType int transportType, int id,
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@DataState int state, @NetworkType int networkType,
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@Nullable LinkProperties linkProperties, @DataFailureCause int failCause,
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@Nullable ApnSetting apnSetting) {
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mTransportType = transportType;
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mId = id;
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mState = state;
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mNetworkType = networkType;
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mLinkProperties = linkProperties;
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mFailCause = failCause;
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mApnSetting = apnSetting;
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}
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/**
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* Construct a PreciseDataConnectionState object from the given parcel.
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*
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* @hide
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*/
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private PreciseDataConnectionState(Parcel in) {
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mTransportType = in.readInt();
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mId = in.readInt();
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mState = in.readInt();
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mNetworkType = in.readInt();
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mLinkProperties = in.readParcelable(LinkProperties.class.getClassLoader(), android.net.LinkProperties.class);
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mFailCause = in.readInt();
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mApnSetting = in.readParcelable(ApnSetting.class.getClassLoader(), android.telephony.data.ApnSetting.class);
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}
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/**
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* Used for checking if the SDK version for
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* {@code PreciseDataConnectionState#getDataConnectionState} is above Q.
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*/
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@ChangeId
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@EnabledAfter(targetSdkVersion = Build.VERSION_CODES.Q)
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private static final long GET_DATA_CONNECTION_STATE_R_VERSION = 148535736L;
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/**
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* Returns the state of data connection that supported the apn types returned by
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* {@link #getDataConnectionApnTypeBitMask()}
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*
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* @deprecated use {@link #getState()}
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* @hide
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*/
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@Deprecated
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@SystemApi
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public @DataState int getDataConnectionState() {
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if (mState == TelephonyManager.DATA_DISCONNECTING
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&& !Compatibility.isChangeEnabled(GET_DATA_CONNECTION_STATE_R_VERSION)) {
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return TelephonyManager.DATA_CONNECTED;
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}
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return mState;
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}
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/**
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* @return The transport type of this data connection.
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*/
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public @TransportType int getTransportType() {
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return mTransportType;
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}
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/**
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* @return The unique id of the data connection
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*
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* Note this is the id assigned by the data service.
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* The id remains the same for data connection handover between
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* {@link AccessNetworkConstants#TRANSPORT_TYPE_WLAN} and
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* {@link AccessNetworkConstants#TRANSPORT_TYPE_WWAN}
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*
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*/
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public int getId() {
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return mId;
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}
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/**
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* @return The high-level state of this data connection.
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*/
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public @DataState int getState() {
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return mState;
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}
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/**
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* Get the network type associated with this data connection.
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*
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* @return The current/latest (radio) bearer technology that carries this data connection.
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* For a variety of reasons, the network type can change during the life of the data
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* connection, and this information is not reliable unless the physical link is currently
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* active; (there is currently no mechanism to know whether the physical link is active at
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* any given moment). Thus, this value is generally correct but may not be relied-upon to
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* represent the status of the radio bearer at any given moment.
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*/
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public @NetworkType int getNetworkType() {
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return mNetworkType;
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}
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/**
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* Returns the APN types mapped to this data connection.
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*
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* @deprecated use {@link #getApnSetting()}
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* @hide
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*/
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@Deprecated
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@SystemApi
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public @ApnType int getDataConnectionApnTypeBitMask() {
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return (mApnSetting != null) ? mApnSetting.getApnTypeBitmask() : ApnSetting.TYPE_NONE;
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}
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/**
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* Returns APN of this data connection.
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*
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* @deprecated use {@link #getApnSetting()}
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* @hide
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*/
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@NonNull
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@SystemApi
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@Deprecated
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public String getDataConnectionApn() {
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return (mApnSetting != null) ? mApnSetting.getApnName() : "";
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}
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/**
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* Get the properties of the network link {@link LinkProperties}.
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*/
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@Nullable
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public LinkProperties getLinkProperties() {
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return mLinkProperties;
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}
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/**
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* Returns the cause code generated by the most recent state change.
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*
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* @deprecated use {@link #getLastCauseCode()}
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* @hide
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*/
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@Deprecated
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@SystemApi
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public int getDataConnectionFailCause() {
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return mFailCause;
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}
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/**
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* Returns the cause code generated by the most recent state change.
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*
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* Return the cause code for the most recent change in {@link #getState}. In the event of an
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* error, this cause code will be non-zero.
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*/
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public @DataFailureCause int getLastCauseCode() {
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return mFailCause;
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}
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/**
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* Return the APN Settings for this data connection.
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*
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* @return the ApnSetting that was used to configure this data connection. Note that a data
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* connection cannot be established without a valid {@link ApnSetting}. The return value would
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* never be {@code null} even though it has {@link Nullable} annotation.
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*/
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public @Nullable ApnSetting getApnSetting() {
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return mApnSetting;
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}
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@Override
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public int describeContents() {
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return 0;
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}
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@Override
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public void writeToParcel(@NonNull Parcel out, int flags) {
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out.writeInt(mTransportType);
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out.writeInt(mId);
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out.writeInt(mState);
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out.writeInt(mNetworkType);
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out.writeParcelable(mLinkProperties, flags);
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out.writeInt(mFailCause);
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out.writeParcelable(mApnSetting, flags);
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}
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public static final @NonNull Parcelable.Creator<PreciseDataConnectionState> CREATOR
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= new Parcelable.Creator<PreciseDataConnectionState>() {
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public PreciseDataConnectionState createFromParcel(Parcel in) {
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return new PreciseDataConnectionState(in);
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}
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public PreciseDataConnectionState[] newArray(int size) {
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return new PreciseDataConnectionState[size];
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}
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};
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@Override
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public int hashCode() {
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return Objects.hash(mTransportType, mId, mState, mNetworkType, mFailCause,
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mLinkProperties, mApnSetting);
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) return true;
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if (o == null || getClass() != o.getClass()) return false;
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PreciseDataConnectionState that = (PreciseDataConnectionState) o;
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return mTransportType == that.mTransportType
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&& mId == that.mId
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&& mState == that.mState
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&& mNetworkType == that.mNetworkType
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&& mFailCause == that.mFailCause
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&& Objects.equals(mLinkProperties, that.mLinkProperties)
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&& Objects.equals(mApnSetting, that.mApnSetting);
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}
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@NonNull
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@Override
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public String toString() {
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StringBuilder sb = new StringBuilder();
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sb.append(" state: " + TelephonyUtils.dataStateToString(mState));
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sb.append(", transport: "
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+ AccessNetworkConstants.transportTypeToString(mTransportType));
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sb.append(", id: " + mId);
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sb.append(", network type: " + TelephonyManager.getNetworkTypeName(mNetworkType));
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sb.append(", APN Setting: " + mApnSetting);
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sb.append(", link properties: " + mLinkProperties);
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sb.append(", fail cause: " + DataFailCause.toString(mFailCause));
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return sb.toString();
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}
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/**
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* {@link PreciseDataConnectionState} builder
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*
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* @hide
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*/
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public static final class Builder {
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/** The transport type of the data connection */
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private @TransportType int mTransportType = AccessNetworkConstants.TRANSPORT_TYPE_INVALID;
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/**
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* The unique ID of the data connection. This is the id assigned in
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* {@link DataCallResponse)}.
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*/
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private int mId = -1;
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/** The state of the data connection */
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private @DataState int mState = TelephonyManager.DATA_UNKNOWN;
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/** The network type associated with this data connection */
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private @NetworkType int mNetworkType = TelephonyManager.NETWORK_TYPE_UNKNOWN;
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/** If the data connection is connected, the properties of the connection */
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private @Nullable LinkProperties mLinkProperties = null;
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/**
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* In case a procedure related to this data connection fails, a non-zero error code
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* indicating the cause of the failure.
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*/
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private @DataFailureCause int mFailCause = DataFailCause.NONE;
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/** The APN Setting for this data connection */
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private @Nullable ApnSetting mApnSetting = null;
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/**
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* Set the transport type of the data connection.
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*
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* @param transportType The transport type of the data connection
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* @return The builder
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*/
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public @NonNull Builder setTransportType(@TransportType int transportType) {
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mTransportType = transportType;
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return this;
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}
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/**
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* Set the id of the data connection.
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*
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* @param id The id of the data connection
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* @return The builder
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*/
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public @NonNull Builder setId(int id) {
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mId = id;
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return this;
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}
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/**
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* Set the state of the data connection.
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*
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* @param state The state of the data connection
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* @return The builder
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*/
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public @NonNull Builder setState(@DataState int state) {
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mState = state;
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return this;
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}
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/**
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* Set the network type associated with this data connection.
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*
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* @param networkType The network type
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* @return The builder
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*/
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public @NonNull Builder setNetworkType(@NetworkType int networkType) {
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mNetworkType = networkType;
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return this;
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}
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/**
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* Set the link properties of the connection.
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*
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* @param linkProperties Link properties
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* @return The builder
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*/
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public @NonNull Builder setLinkProperties(LinkProperties linkProperties) {
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mLinkProperties = linkProperties;
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return this;
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}
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/**
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* Set the fail cause of the data connection.
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*
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* @param failCause In case a procedure related to this data connection fails, a non-zero
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* error code indicating the cause of the failure.
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* @return The builder
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*/
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public @NonNull Builder setFailCause(@DataFailureCause int failCause) {
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mFailCause = failCause;
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return this;
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}
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/**
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* Set the APN Setting for this data connection.
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*
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* @param apnSetting APN setting
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* @return This builder
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*/
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public @NonNull Builder setApnSetting(@NonNull ApnSetting apnSetting) {
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mApnSetting = apnSetting;
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return this;
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}
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/**
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* Build the {@link PreciseDataConnectionState} instance.
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*
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* @return The {@link PreciseDataConnectionState} instance
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*/
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public PreciseDataConnectionState build() {
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return new PreciseDataConnectionState(mTransportType, mId, mState, mNetworkType,
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mLinkProperties, mFailCause, mApnSetting);
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}
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}
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}
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